Spec path

openapi_core/casting/schemas/casters.py

@@ -14,7 +14,7 @@ class PrimitiveCaster(object):
         try:
             return self.caster_callable(value)
         except (ValueError, TypeError):
-            raise CastError(value, self.schema.type.value)
+            raise CastError(value, self.schema['type'])
 
 
 class DummyCaster(object):
@@ -31,7 +31,7 @@ class ArrayCaster(object):
 
     @property
     def items_caster(self):
-        return self.casters_factory.create(self.schema.items)
+        return self.casters_factory.create(self.schema / 'items')
 
     def __call__(self, value):
         if value in (None, NoValue):

openapi_core/casting/schemas/factories.py

@@ -1,5 +1,3 @@
-from openapi_core.schema.schemas.enums import SchemaType
-
 from openapi_core.casting.schemas.casters import (
     PrimitiveCaster, DummyCaster, ArrayCaster
 )
@@ -9,23 +7,24 @@ from openapi_core.casting.schemas.util import forcebool
 class SchemaCastersFactory(object):
 
     DUMMY_CASTERS = [
-        SchemaType.STRING, SchemaType.OBJECT, SchemaType.ANY,
+        'string', 'object', 'any',
     ]
     PRIMITIVE_CASTERS = {
-        SchemaType.INTEGER: int,
-        SchemaType.NUMBER: float,
-        SchemaType.BOOLEAN: forcebool,
+        'integer': int,
+        'number': float,
+        'boolean': forcebool,
     }
     COMPLEX_CASTERS = {
-        SchemaType.ARRAY: ArrayCaster,
+        'array': ArrayCaster,
     }
 
     def create(self, schema):
-        if schema.type in self.DUMMY_CASTERS:
+        schema_type = schema.getkey('type', 'any')
+        if schema_type in self.DUMMY_CASTERS:
             return DummyCaster()
-        elif schema.type in self.PRIMITIVE_CASTERS:
-            caster_callable = self.PRIMITIVE_CASTERS[schema.type]
+        elif schema_type in self.PRIMITIVE_CASTERS:
+            caster_callable = self.PRIMITIVE_CASTERS[schema_type]
             return PrimitiveCaster(schema, caster_callable)
-        elif schema.type in self.COMPLEX_CASTERS:
-            caster_class = self.COMPLEX_CASTERS[schema.type]
+        elif schema_type in self.COMPLEX_CASTERS:
+            caster_class = self.COMPLEX_CASTERS[schema_type]
             return caster_class(schema, self)

openapi_core/deserializing/media_types/factories.py

@@ -20,11 +20,11 @@ class MediaTypeDeserializersFactory(object):
             custom_deserializers = {}
         self.custom_deserializers = custom_deserializers
 
-    def create(self, media_type):
+    def create(self, mimetype):
         deserialize_callable = self.get_deserializer_callable(
-            media_type.mimetype)
+            mimetype)
         return PrimitiveDeserializer(
-            media_type.mimetype, deserialize_callable)
+            mimetype, deserialize_callable)
 
     def get_deserializer_callable(self, mimetype):
         if mimetype in self.custom_deserializers:

openapi_core/deserializing/parameters/deserializers.py

@@ -3,6 +3,7 @@ from openapi_core.deserializing.parameters.exceptions import (
     EmptyParameterValue,
 )
 from openapi_core.schema.parameters.enums import ParameterLocation
+from openapi_core.spec.parameters import get_aslist, get_explode, get_style
 
 
 class PrimitiveDeserializer(object):
@@ -11,15 +12,20 @@ class PrimitiveDeserializer(object):
         self.param = param
         self.deserializer_callable = deserializer_callable
 
-    def __call__(self, value):
-        if (self.param.location == ParameterLocation.QUERY and value == "" and
-                not self.param.allow_empty_value):
-            raise EmptyParameterValue(
-                value, self.param.style, self.param.name)
+        self.aslist = get_aslist(self.param)
+        self.explode = get_explode(self.param)
+        self.style = get_style(self.param)
 
-        if not self.param.aslist or self.param.explode:
+    def __call__(self, value):
+        style = get_style(self.param)
+        if (self.param['in'] == 'query' and value == "" and
+                not self.param.getkey('allowEmptyValue', False)):
+            raise EmptyParameterValue(
+                value, self.style, self.param['name'])
+
+        if not self.aslist or self.explode:
             return value
         try:
             return self.deserializer_callable(value)
         except (ValueError, TypeError, AttributeError):
-            raise DeserializeError(value, self.param.style)
+            raise DeserializeError(value, self.style)

openapi_core/deserializing/parameters/factories.py

@@ -3,24 +3,26 @@ import warnings
 from openapi_core.deserializing.parameters.deserializers import (
     PrimitiveDeserializer,
 )
-from openapi_core.schema.parameters.enums import ParameterStyle
+from openapi_core.schema.parameters import get_style
 
 
 class ParameterDeserializersFactory(object):
 
     PARAMETER_STYLE_DESERIALIZERS = {
-        ParameterStyle.FORM: lambda x: x.split(','),
-        ParameterStyle.SIMPLE: lambda x: x.split(','),
-        ParameterStyle.SPACE_DELIMITED: lambda x: x.split(' '),
-        ParameterStyle.PIPE_DELIMITED: lambda x: x.split('|'),
+        'form': lambda x: x.split(','),
+        'simple': lambda x: x.split(','),
+        'spaceDelimited': lambda x: x.split(' '),
+        'pipeDelimited': lambda x: x.split('|'),
     }
 
     def create(self, param):
-        if param.deprecated:
+        if param.getkey('deprecated', False):
             warnings.warn(
-                "{0} parameter is deprecated".format(param.name),
+                "{0} parameter is deprecated".format(param['name']),
                 DeprecationWarning,
             )
 
-        deserialize_callable = self.PARAMETER_STYLE_DESERIALIZERS[param.style]
+        style = get_style(param)
+
+        deserialize_callable = self.PARAMETER_STYLE_DESERIALIZERS[style]
         return PrimitiveDeserializer(param, deserialize_callable)

openapi_core/schema/models.py

@@ -0,0 +1,98 @@
+import sys
+
+
+class Spec(object):
+    sep = '/'
+
+    def __new__(cls, *args):
+        return cls._from_parts(args)
+
+    @classmethod
+    def _parse_args(cls, args):
+        # This is useful when you don't want to create an instance, just
+        # canonicalize some constructor arguments.
+        parts = []
+        for a in args:
+            if isinstance(a, Spec):
+                parts += a._parts
+            else:
+                if isinstance(a, str):
+                    # Force-cast str subclasses to str (issue #21127)
+                    parts.append(str(a))
+                else:
+                    raise TypeError(
+                        "argument should be a str object or a Spec "
+                        "object returning str, not %r"
+                        % type(a))
+        return cls.parse_parts(parts)
+
+    @classmethod
+    def parse_parts(cls, parts):
+        parsed = []
+        sep = cls.sep
+        root = ''
+        it = reversed(parts)
+        for part in it:
+            if not part:
+                continue
+            root, rel = cls.splitroot(part)
+            if sep in rel:
+                for x in reversed(rel.split(sep)):
+                    if x and x != '.':
+                        parsed.append(sys.intern(x))
+            else:
+                if rel and rel != '.':
+                    parsed.append(sys.intern(rel))
+        parsed.reverse()
+        return root, parsed
+
+    @classmethod
+    def splitroot(cls, part, sep=sep):
+        if part and part[0] == sep:
+            stripped_part = part.lstrip(sep)
+            # According to POSIX path resolution:
+            # http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap04.html#tag_04_11
+            # "A pathname that begins with two successive slashes may be
+            # interpreted in an implementation-defined manner, although more
+            # than two leading slashes shall be treated as a single slash".
+            if len(part) - len(stripped_part) == 2:
+                return sep * 2, stripped_part
+            else:
+                return sep, stripped_part
+        else:
+            return '', part
+
+    @classmethod
+    def _from_parts(cls, args):
+        self = object.__new__(cls)
+        root, parts = cls._parse_args(args)
+        self._root = root
+        self._parts = parts
+        return self
+
+    @classmethod
+    def _from_parsed_parts(cls, root, parts):
+        self = object.__new__(cls)
+        self._root = root
+        self._parts = parts
+        return self
+
+    def join_parsed_parts(self, root, parts, root2, parts2):
+        """
+        Join the two paths represented by the respective
+        (root, parts) tuples.  Return a new (root, parts) tuple.
+        """
+        if root2:
+            return root2, root2 + parts2[1:]
+        elif parts:
+            return root, parts + parts2
+        return root2, parts2
+
+    def _make_child(self, args):
+        root, parts = self._parse_args(args)
+        root, parts = self.join_parsed_parts(
+            self._root, self._parts, root, parts)
+        return self._from_parsed_parts(root, parts)
+
+    def __truediv__(self, key):
+        return self._make_child((key,))

openapi_core/schema/servers/models.py

@@ -1,6 +1,8 @@
 """OpenAPI core servers models module"""
 from six import iteritems
 
+from openapi_core.schema.servers.utils import is_absolute
+
 
 class Server(object):
 
@@ -30,7 +32,7 @@ class Server(object):
     def is_absolute(self, url=None):
         if url is None:
             url = self.url
-        return url.startswith('//') or '://' in url
+        return is_absolute(url)
 
 
 class ServerVariable(object):

openapi_core/schema/servers/utils.py

@@ -0,0 +1,2 @@
+def is_absolute(url):
+    return url.startswith('//') or '://' in url

openapi_core/schema/shortcuts.py

@@ -3,6 +3,7 @@ from jsonschema.validators import RefResolver
 from openapi_spec_validator import (
     default_handlers, openapi_v3_spec_validator,
 )
+from openapi_spec_validator.validators import Dereferencer
 
 from openapi_core.schema.specs.factories import SpecFactory
 
@@ -16,5 +17,8 @@ def create_spec(
 
     spec_resolver = RefResolver(
         spec_url, spec_dict, handlers=handlers)
+    dereferencer = Dereferencer(spec_resolver)
+    from openapi_core.spec.paths import SpecPath
+    return SpecPath.from_spec(spec_dict, dereferencer)
     spec_factory = SpecFactory(spec_resolver)
     return spec_factory.create(spec_dict, spec_url=spec_url)

openapi_core/security/factories.py

@@ -7,13 +7,14 @@ from openapi_core.security.providers import (
 class SecurityProviderFactory(object):
 
     PROVIDERS = {
-        SecuritySchemeType.API_KEY: ApiKeyProvider,
-        SecuritySchemeType.HTTP: HttpProvider,
+        'apiKey': ApiKeyProvider,
+        'http': HttpProvider,
     }
 
     def create(self, scheme):
-        if scheme.type == SecuritySchemeType.API_KEY:
+        scheme_type = scheme['type']
+        if scheme_type == 'apiKey':
             return ApiKeyProvider(scheme)
-        elif scheme.type == SecuritySchemeType.HTTP:
+        elif scheme_type == 'http':
             return HttpProvider(scheme)
         return UnsupportedProvider(scheme)

openapi_core/security/providers.py

@@ -18,10 +18,12 @@ class UnsupportedProvider(BaseProvider):
 class ApiKeyProvider(BaseProvider):
 
     def __call__(self, request):
-        source = getattr(request.parameters, self.scheme.apikey_in.value)
-        if self.scheme.name not in source:
+        name = self.scheme['name']
+        location = self.scheme['in']
+        source = getattr(request.parameters, location)
+        if name not in source:
             raise SecurityError("Missing api key parameter.")
-        return source.get(self.scheme.name)
+        return source[name]
 
 
 class HttpProvider(BaseProvider):
@@ -35,7 +37,8 @@ class HttpProvider(BaseProvider):
         except ValueError:
             raise SecurityError('Could not parse authorization header.')
 
-        if auth_type.lower() != self.scheme.scheme.value:
+        scheme = self.scheme['scheme']
+        if auth_type.lower() != scheme:
             raise SecurityError(
                 'Unknown authorization method %s' % auth_type)
 

openapi_core/spec/accessors.py

@@ -0,0 +1,23 @@
+from contextlib import contextmanager
+
+from dictpath.accessors import DictOrListAccessor
+
+
+class SpecAccessor(DictOrListAccessor):
+
+    def __init__(self, dict_or_list, dereferencer):
+        super(SpecAccessor, self).__init__(dict_or_list)
+        self.dereferencer = dereferencer
+
+    @contextmanager
+    def open(self, parts):
+        content = self.dict_or_list
+        for part in parts:
+            content = content[part]
+            if '$ref' in content:
+                content = self.dereferencer.dereference(
+                    content)
+        try:
+            yield content
+        finally:
+            pass

openapi_core/spec/parameters.py

@@ -0,0 +1,24 @@
+def get_aslist(param):
+    return (
+        param.get('schema', None) and
+        param['schema']['type'] in ['array', 'object']
+    )
+
+
+def get_style(param):
+    if 'style' in param:
+        return param['style']
+
+    # determine default
+    return (
+        'simple' if param['in'] in ['path', 'header'] else 'form'
+    )
+
+
+def get_explode(param):
+    if 'explode' in param:
+        return param['explode']
+
+    #determine default
+    style = get_style(param)
+    return style == 'form'

openapi_core/spec/paths.py

@@ -0,0 +1,16 @@
+from dictpath.paths import AccessorPath
+
+from openapi_core.spec.accessors import SpecAccessor
+
+SPEC_SEPARATOR = '#'
+
+
+class SpecPath(AccessorPath):
+
+    @classmethod
+    def from_spec(
+        cls, spec_dict, dereferencer=None, *args,
+        separator=SPEC_SEPARATOR,
+    ):
+        accessor = SpecAccessor(spec_dict, dereferencer)
+        return cls(accessor, *args, separator=separator)

openapi_core/spec/schemas.py

@@ -0,0 +1,20 @@
+from six import iteritems
+
+
+def get_all_properties(schema):
+    properties = schema.get('properties', {})
+    properties_dict = dict(iteritems(properties))
+
+    if 'allOf'not in schema:
+        return properties_dict
+
+    for subschema in schema / 'allOf':
+        subschema_props = get_all_properties(subschema)
+        properties_dict.update(subschema_props)
+
+    return properties_dict
+
+
+def get_all_properties_names(schema):
+    all_properties = get_all_properties(schema)
+    return set(all_properties.keys())

openapi_core/spec/servers.py

@@ -0,0 +1,18 @@
+from six import iteritems
+
+
+def get_server_default_variables(server):
+    if 'variables' not in server:
+        return {}
+
+    defaults = {}
+    variables = server / 'variables'
+    for name, variable in iteritems(variables):
+        defaults[name] = variable['default']
+    return defaults
+
+
+def get_server_url(server, **variables):
+    if not variables:
+        variables = get_server_default_variables(server)
+    return server['url'].format(**variables)

openapi_core/spec/specs.py

@@ -0,0 +1,6 @@
+from openapi_core.spec.servers import get_server_url
+
+
+def get_spec_url(spec, index=0):
+    servers = spec / 'servers'
+    return get_server_url(servers / 0)

openapi_core/templating/media_types/finders.py

@@ -12,13 +12,11 @@ class MediaTypeFinder(object):
         self.content = content
 
     def find(self, request):
-        try:
-            return self.content[request.mimetype]
-        except KeyError:
-            pass
+        if request.mimetype in self.content:
+            return self.content / request.mimetype, request.mimetype
 
-        for key, value in iteritems(self.content):
+        for key, value in self.content.items():
             if fnmatch.fnmatch(request.mimetype, key):
-                return value
+                return value, key
 
         raise MediaTypeNotFound(request.mimetype, list(self.content.keys()))

openapi_core/templating/paths/finders.py

@@ -3,6 +3,7 @@ from more_itertools import peekable
 from six import iteritems
 from six.moves.urllib.parse import urljoin, urlparse
 
+from openapi_core.schema.servers.utils import is_absolute
 from openapi_core.templating.datatypes import TemplateResult
 from openapi_core.templating.util import parse, search
 from openapi_core.templating.paths.exceptions import (
@@ -40,7 +41,8 @@ class PathFinder(object):
 
     def _get_paths_iter(self, full_url_pattern):
         template_paths = []
-        for path_pattern, path in iteritems(self.spec.paths):
+        paths = self.spec / 'paths'
+        for path_pattern, path in paths.items():
             # simple path.
             # Return right away since it is always the most concrete
             if full_url_pattern.endswith(path_pattern):
@@ -59,22 +61,24 @@ class PathFinder(object):
 
     def _get_operations_iter(self, request_method, paths_iter):
         for path, path_result in paths_iter:
-            if request_method not in path.operations:
+            if request_method not in path:
                 continue
-            operation = path.operations[request_method]
+            operation = path / request_method
             yield (path, operation, path_result)
 
     def _get_servers_iter(self, full_url_pattern, ooperations_iter):
         for path, operation, path_result in ooperations_iter:
-            servers = path.servers or operation.servers or self.spec.servers
+            servers = path.get('servers', None) or \
+                operation.get('servers', None) or \
+                self.spec.get('servers', [{'url': '/'}])
             for server in servers:
                 server_url_pattern = full_url_pattern.rsplit(
                     path_result.resolved, 1)[0]
-                server_url = server.url
-                if not server.is_absolute():
+                server_url = server['url']
+                if not is_absolute(server_url):
                     # relative to absolute url
                     if self.base_url is not None:
-                        server_url = urljoin(self.base_url, server.url)
+                        server_url = urljoin(self.base_url, server['url'])
                     # if no base url check only path part
                     else:
                         server_url_pattern = urlparse(server_url_pattern).path
@@ -82,17 +86,17 @@ class PathFinder(object):
                     server_url = server_url[:-1]
                 # simple path
                 if server_url_pattern == server_url:
-                    server_result = TemplateResult(server.url, {})
+                    server_result = TemplateResult(server['url'], {})
                     yield (
                         path, operation, server,
                         path_result, server_result,
                     )
                 # template path
                 else:
-                    result = parse(server.url, server_url_pattern)
+                    result = parse(server['url'], server_url_pattern)
                     if result:
                         server_result = TemplateResult(
-                            server.url, result.named)
+                            server['url'], result.named)
                         yield (
                             path, operation, server,
                             path_result, server_result,

openapi_core/templating/responses/finders.py

@@ -7,17 +7,15 @@ class ResponseFinder(object):
         self.responses = responses
 
     def find(self, http_status='default'):
-        try:
-            return self.responses[http_status]
-        except KeyError:
-            pass
+        if http_status in self.responses:
+            return self.responses / http_status
 
         # try range
         http_status_range = '{0}XX'.format(http_status[0])
         if http_status_range in self.responses:
-            return self.responses[http_status_range]
+            return self.responses / http_status_range
 
         if 'default' not in self.responses:
             raise ResponseNotFound(http_status, self.responses)
 
-        return self.responses['default']
+        return self.responses / 'default'

openapi_core/unmarshalling/schemas/factories.py

@@ -18,15 +18,15 @@ from openapi_core.unmarshalling.schemas.unmarshallers import (
 class SchemaUnmarshallersFactory(object):
 
     PRIMITIVE_UNMARSHALLERS = {
-        SchemaType.STRING: StringUnmarshaller,
-        SchemaType.INTEGER: IntegerUnmarshaller,
-        SchemaType.NUMBER: NumberUnmarshaller,
-        SchemaType.BOOLEAN: BooleanUnmarshaller,
+        'string': StringUnmarshaller,
+        'integer': IntegerUnmarshaller,
+        'number': NumberUnmarshaller,
+        'boolean': BooleanUnmarshaller,
     }
     COMPLEX_UNMARSHALLERS = {
-        SchemaType.ARRAY: ArrayUnmarshaller,
-        SchemaType.OBJECT: ObjectUnmarshaller,
-        SchemaType.ANY: AnyUnmarshaller,
+        'array': ArrayUnmarshaller,
+        'object': ObjectUnmarshaller,
+        'any': AnyUnmarshaller,
     }
 
     CONTEXT_VALIDATION = {
@@ -46,12 +46,13 @@ class SchemaUnmarshallersFactory(object):
 
     def create(self, schema, type_override=None):
         """Create unmarshaller from the schema."""
-        if not isinstance(schema, Schema):
-            raise TypeError("schema not type of Schema")
-        if schema.deprecated:
+        if schema is None:
+            raise TypeError("Invalid schema")
+
+        if schema.getkey('deprecated', False):
             warnings.warn("The schema is deprecated", DeprecationWarning)
 
-        schema_type = type_override or schema.type
+        schema_type = type_override or schema.getkey('type', 'any')
         if schema_type in self.PRIMITIVE_UNMARSHALLERS:
             klass = self.PRIMITIVE_UNMARSHALLERS[schema_type]
             kwargs = dict(schema=schema)
@@ -63,10 +64,11 @@ class SchemaUnmarshallersFactory(object):
                 context=self.context,
             )
 
-        formatter = self.get_formatter(klass.FORMATTERS, schema.format)
+        schema_format = schema.getkey('format')
+        formatter = self.get_formatter(klass.FORMATTERS, schema_format)
 
         if formatter is None:
-            raise FormatterNotFoundError(schema.format)
+            raise FormatterNotFoundError(schema_format)
 
         validator = self.get_validator(schema)
 
@@ -87,4 +89,5 @@ class SchemaUnmarshallersFactory(object):
         }
         if self.context is not None:
             kwargs[self.CONTEXT_VALIDATION[self.context]] = True
-        return OAS30Validator(schema.__dict__, **kwargs)
+        with schema.open() as schema_dict:
+            return OAS30Validator(schema_dict, **kwargs)

openapi_core/unmarshalling/schemas/unmarshallers.py

@@ -15,6 +15,9 @@ from openapi_core.extensions.models.factories import ModelFactory
 from openapi_core.schema.schemas.enums import SchemaFormat, SchemaType
 from openapi_core.schema.schemas.models import Schema
 from openapi_core.schema.schemas.types import NoValue
+from openapi_core.spec.schemas import (
+    get_all_properties, get_all_properties_names
+)
 from openapi_core.unmarshalling.schemas.enums import UnmarshalContext
 from openapi_core.unmarshalling.schemas.exceptions import (
     UnmarshalError, ValidateError, InvalidSchemaValue,
@@ -40,7 +43,7 @@ class PrimitiveTypeUnmarshaller(object):
 
     def __call__(self, value=NoValue):
         if value is NoValue:
-            value = self.schema.default
+            value = self.schema.getkey('default')
         if value is None:
             return
 
@@ -51,21 +54,24 @@ class PrimitiveTypeUnmarshaller(object):
     def _formatter_validate(self, value):
         result = self.formatter.validate(value)
         if not result:
-            raise InvalidSchemaValue(value, self.schema.type)
+            schema_type = self.schema.getkey('type', 'any')
+            raise InvalidSchemaValue(value, schema_type)
 
     def validate(self, value):
         errors_iter = self.validator.iter_errors(value)
         errors = tuple(errors_iter)
         if errors:
+            schema_type = self.schema.getkey('type', 'any')
             raise InvalidSchemaValue(
-                value, self.schema.type, schema_errors=errors)
+                value, schema_type, schema_errors=errors)
 
     def unmarshal(self, value):
         try:
             return self.formatter.unmarshal(value)
         except ValueError as exc:
+            schema_format = self.schema.getkey('format')
             raise InvalidSchemaFormatValue(
-                value, self.schema.format, exc)
+                value, schema_format, exc)
 
 
 class StringUnmarshaller(PrimitiveTypeUnmarshaller):
@@ -140,11 +146,11 @@ class ArrayUnmarshaller(ComplexUnmarshaller):
 
     @property
     def items_unmarshaller(self):
-        return self.unmarshallers_factory.create(self.schema.items)
+        return self.unmarshallers_factory.create(self.schema / 'items')
 
     def __call__(self, value=NoValue):
         value = super(ArrayUnmarshaller, self).__call__(value)
-        if value is None and self.schema.nullable:
+        if value is None and self.schema.getkey('nullable', False):
             return None
         return list(map(self.items_unmarshaller, value))
 
@@ -170,9 +176,9 @@ class ObjectUnmarshaller(ComplexUnmarshaller):
             return self._unmarshal_object(value)
 
     def _unmarshal_object(self, value=NoValue):
-        if self.schema.one_of:
+        if 'oneOf' in self.schema:
             properties = None
-            for one_of_schema in self.schema.one_of:
+            for one_of_schema in self.schema / 'oneOf':
                 try:
                     unmarshalled = self._unmarshal_properties(
                         value, one_of_schema)
@@ -190,46 +196,49 @@ class ObjectUnmarshaller(ComplexUnmarshaller):
         else:
             properties = self._unmarshal_properties(value)
 
-        if 'x-model' in self.schema.extensions:
-            extension = self.schema.extensions['x-model']
-            return self.model_factory.create(properties, name=extension.value)
+        if 'x-model' in self.schema:
+            name = self.schema['x-model']
+            return self.model_factory.create(properties, name=name)
 
         return properties
 
     def _unmarshal_properties(self, value=NoValue, one_of_schema=None):
-        all_props = self.schema.get_all_properties()
-        all_props_names = self.schema.get_all_properties_names()
+        all_props = get_all_properties(self.schema)
+        all_props_names = get_all_properties_names(self.schema)
 
         if one_of_schema is not None:
-            all_props.update(one_of_schema.get_all_properties())
-            all_props_names |= one_of_schema.\
-                get_all_properties_names()
+            all_props.update(get_all_properties(one_of_schema))
+            all_props_names |= get_all_properties_names(one_of_schema)
 
         value_props_names = value.keys()
         extra_props = set(value_props_names) - set(all_props_names)
 
         properties = {}
-        if isinstance(self.schema.additional_properties, Schema):
+        additional_properties = self.schema.getkey('additionalProperties', True)
+        if isinstance(additional_properties, dict):
+            additional_prop_schema = self.schema / 'additionalProperties'
             for prop_name in extra_props:
                 prop_value = value[prop_name]
                 properties[prop_name] = self.unmarshallers_factory.create(
-                    self.schema.additional_properties)(prop_value)
-        elif self.schema.additional_properties is True:
+                    additional_prop_schema)(prop_value)
+        elif additional_properties is True:
             for prop_name in extra_props:
                 prop_value = value[prop_name]
                 properties[prop_name] = prop_value
 
         for prop_name, prop in iteritems(all_props):
-            if self.context == UnmarshalContext.REQUEST and prop.read_only:
+            read_only = prop.getkey('readOnly', False)
+            if self.context == UnmarshalContext.REQUEST and read_only:
                 continue
-            if self.context == UnmarshalContext.RESPONSE and prop.write_only:
+            write_only = prop.getkey('writeOnly', False)
+            if self.context == UnmarshalContext.RESPONSE and write_only:
                 continue
             try:
                 prop_value = value[prop_name]
             except KeyError:
-                if prop.default is NoValue:
+                if 'default' not in prop:
                     continue
-                prop_value = prop.default
+                prop_value = prop['default']
 
             properties[prop_name] = self.unmarshallers_factory.create(
                 prop)(prop_value)
@@ -244,8 +253,8 @@ class AnyUnmarshaller(ComplexUnmarshaller):
     }
 
     SCHEMA_TYPES_ORDER = [
-        SchemaType.OBJECT, SchemaType.ARRAY, SchemaType.BOOLEAN,
-        SchemaType.INTEGER, SchemaType.NUMBER, SchemaType.STRING,
+        'object', 'array', 'boolean',
+        'integer', 'number', 'string',
     ]
 
     def unmarshal(self, value=NoValue):
@@ -272,9 +281,11 @@ class AnyUnmarshaller(ComplexUnmarshaller):
         return value
 
     def _get_one_of_schema(self, value):
-        if not self.schema.one_of:
+        if 'oneOf' not in self.schema:
             return
-        for subschema in self.schema.one_of:
+
+        one_of_schemas = self.schema / 'oneOf'
+        for subschema in one_of_schemas:
             unmarshaller = self.unmarshallers_factory.create(subschema)
             try:
                 unmarshaller.validate(value)
@@ -284,10 +295,12 @@ class AnyUnmarshaller(ComplexUnmarshaller):
                 return subschema
 
     def _get_all_of_schema(self, value):
-        if not self.schema.all_of:
+        if 'allOf' not in self.schema:
             return
-        for subschema in self.schema.all_of:
-            if subschema.type == SchemaType.ANY:
+
+        all_of_schemas = self.schema / 'allOf'
+        for subschema in all_of_schemas:
+            if 'type' not in subschema:
                 continue
             unmarshaller = self.unmarshallers_factory.create(subschema)
             try:

openapi_core/validation/request/validators.py

@@ -9,6 +9,7 @@ from openapi_core.schema.parameters.exceptions import (
 )
 from openapi_core.schema.request_bodies.exceptions import MissingRequestBody
 from openapi_core.security.exceptions import SecurityError
+from openapi_core.spec.parameters import get_aslist, get_explode
 from openapi_core.templating.media_types.exceptions import MediaTypeFinderError
 from openapi_core.templating.paths.exceptions import PathError
 from openapi_core.unmarshalling.schemas.enums import UnmarshalContext
@@ -38,10 +39,17 @@ class RequestValidator(BaseValidator):
 
         request.parameters.path = request.parameters.path or \
             path_result.variables
+
+        operation_params = operation.get('parameters', [])
+        operation_params_iter = operation_params and \
+            iter(operation_params) or []
+        path_params = path.get('parameters', [])
+        params_params_iter = path_params and \
+            iter(path_params) or []
         params, params_errors = self._get_parameters(
             request, chain(
-                iteritems(operation.parameters),
-                iteritems(path.parameters)
+                operation_params_iter,
+                params_params_iter,
             )
         )
 
@@ -63,10 +71,17 @@ class RequestValidator(BaseValidator):
 
         request.parameters.path = request.parameters.path or \
             path_result.variables
+
+        operation_params = operation.get('parameters', [])
+        operation_params_iter = operation_params and \
+            iter(operation_params) or []
+        path_params = path.get('parameters', [])
+        params_params_iter = path_params and \
+            iter(path_params) or []
         params, params_errors = self._get_parameters(
             request, chain(
-                iteritems(operation.parameters),
-                iteritems(path.parameters)
+                operation_params_iter,
+                params_params_iter,
             )
         )
         return RequestValidationResult(
@@ -87,9 +102,11 @@ class RequestValidator(BaseValidator):
         )
 
     def _get_security(self, request, operation):
-        security = self.spec.security
-        if operation.security is not None:
-            security = operation.security
+        security = None
+        if 'security' in self.spec:
+            security = self.spec / 'security'
+        if 'security' in operation:
+            security = operation / 'security'
 
         if not security:
             return {}
@@ -99,7 +116,7 @@ class RequestValidator(BaseValidator):
                 return {
                     scheme_name: self._get_security_value(
                         scheme_name, request)
-                    for scheme_name in security_requirement
+                    for scheme_name in security_requirement.keys()
                 }
             except SecurityError:
                 continue
@@ -110,21 +127,26 @@ class RequestValidator(BaseValidator):
         errors = []
         seen = set()
         locations = {}
-        for param_name, param in params:
-            if (param_name, param.location.value) in seen:
+        for param in params:
+            param_name = param['name']
+            param_location = param['in']
+            if (param_name, param_location) in seen:
                 # skip parameter already seen
                 # e.g. overriden path item paremeter on operation
                 continue
-            seen.add((param_name, param.location.value))
+            seen.add((param_name, param_location))
             try:
                 raw_value = self._get_parameter_value(param, request)
             except MissingRequiredParameter as exc:
                 errors.append(exc)
                 continue
             except MissingParameter:
-                if not param.schema or not param.schema.has_default():
+                if 'schema' not in param:
                     continue
-                casted = param.schema.default
+                schema = param / 'schema'
+                if 'default' not in schema:
+                    continue
+                casted = schema['default']
             else:
                 try:
                     deserialised = self._deserialise_parameter(
@@ -144,28 +166,29 @@ class RequestValidator(BaseValidator):
             except (ValidateError, UnmarshalError) as exc:
                 errors.append(exc)
             else:
-                locations.setdefault(param.location.value, {})
-                locations[param.location.value][param_name] = unmarshalled
+                locations.setdefault(param_location, {})
+                locations[param_location][param_name] = unmarshalled
 
         return RequestParameters(**locations), errors
 
     def _get_body(self, request, operation):
-        if operation.request_body is None:
+        if not 'requestBody' in operation:
             return None, []
 
+        request_body = operation / 'requestBody'
         try:
-            media_type = self._get_media_type(
-                operation.request_body.content, request)
+            media_type, mimetype = self._get_media_type(
+                request_body / 'content', request)
         except MediaTypeFinderError as exc:
             return None, [exc, ]
 
         try:
-            raw_body = self._get_body_value(operation.request_body, request)
+            raw_body = self._get_body_value(request_body, request)
         except MissingRequestBody as exc:
             return None, [exc, ]
 
         try:
-            deserialised = self._deserialise_media_type(media_type, raw_body)
+            deserialised = self._deserialise_data(mimetype, raw_body)
         except DeserializeError as exc:
             return None, [exc, ]
 
@@ -182,33 +205,37 @@ class RequestValidator(BaseValidator):
         return body, []
 
     def _get_security_value(self, scheme_name, request):
-        scheme = self.spec.components.security_schemes.get(scheme_name)
-        if not scheme:
+        security_schemes = self.spec / 'components#securitySchemes'
+        if scheme_name not in security_schemes:
             return
-
+        scheme = security_schemes[scheme_name]
         from openapi_core.security.factories import SecurityProviderFactory
         security_provider_factory = SecurityProviderFactory()
         security_provider = security_provider_factory.create(scheme)
         return security_provider(request)
 
     def _get_parameter_value(self, param, request):
-        location = request.parameters[param.location.value]
+        param_location = param['in']
+        location = request.parameters[param_location]
 
-        if param.name not in location:
-            if param.required:
-                raise MissingRequiredParameter(param.name)
+        if param['name'] not in location:
+            if param.getkey('required', False):
+                raise MissingRequiredParameter(param['name'])
 
-            raise MissingParameter(param.name)
+            raise MissingParameter(param['name'])
 
-        if param.aslist and param.explode:
+        aslist = get_aslist(param)
+        explode = get_explode(param)
+        if aslist and explode:
             if hasattr(location, 'getall'):
-                return location.getall(param.name)
-            return location.getlist(param.name)
+                return location.getall(param['name'])
+            return location.getlist(param['name'])
 
-        return location[param.name]
+        return location[param['name']]
 
     def _get_body_value(self, request_body, request):
-        if not request.body and request_body.required:
+        required = request_body.getkey('required', False)
+        if not request.body and required:
             raise MissingRequestBody(request)
         return request.body
 

openapi_core/validation/response/validators.py

@@ -43,7 +43,7 @@ class ResponseValidator(BaseValidator):
 
     def _get_operation_response(self, operation, response):
         from openapi_core.templating.responses.finders import ResponseFinder
-        finder = ResponseFinder(operation.responses)
+        finder = ResponseFinder(operation / 'responses')
         return finder.find(str(response.status_code))
 
     def _validate_data(self, request, response):
@@ -67,12 +67,12 @@ class ResponseValidator(BaseValidator):
         )
 
     def _get_data(self, response, operation_response):
-        if not operation_response.content:
+        if 'content' not in operation_response:
             return None, []
 
         try:
-            media_type = self._get_media_type(
-                operation_response.content, response)
+            media_type, mimetype = self._get_media_type(
+                operation_response / 'content', response)
         except MediaTypeFinderError as exc:
             return None, [exc, ]
 
@@ -82,7 +82,7 @@ class ResponseValidator(BaseValidator):
             return None, [exc, ]
 
         try:
-            deserialised = self._deserialise_media_type(media_type, raw_data)
+            deserialised = self._deserialise_data(mimetype, raw_data)
         except DeserializeError as exc:
             return None, [exc, ]
 

openapi_core/validation/validators.py

@@ -26,36 +26,38 @@ class BaseValidator(object):
         finder = MediaTypeFinder(content)
         return finder.find(request_or_response)
 
-    def _deserialise_media_type(self, media_type, value):
+    def _deserialise_data(self, mimetype, value):
         from openapi_core.deserializing.media_types.factories import (
             MediaTypeDeserializersFactory,
         )
         deserializers_factory = MediaTypeDeserializersFactory(
             self.custom_media_type_deserializers)
-        deserializer = deserializers_factory.create(media_type)
+        deserializer = deserializers_factory.create(mimetype)
         return deserializer(value)
 
     def _cast(self, param_or_media_type, value):
         # return param_or_media_type.cast(value)
-        if not param_or_media_type.schema:
+        if not 'schema' in param_or_media_type:
             return value
 
         from openapi_core.casting.schemas.factories import SchemaCastersFactory
         casters_factory = SchemaCastersFactory()
-        caster = casters_factory.create(param_or_media_type.schema)
+        schema = param_or_media_type / 'schema'
+        caster = casters_factory.create(schema)
         return caster(value)
 
     def _unmarshal(self, param_or_media_type, value, context):
-        if not param_or_media_type.schema:
+        if not 'schema' in param_or_media_type:
             return value
 
         from openapi_core.unmarshalling.schemas.factories import (
             SchemaUnmarshallersFactory,
         )
+        spec_resolver = self.spec.accessor.dereferencer.resolver_manager.resolver
         unmarshallers_factory = SchemaUnmarshallersFactory(
-            self.spec._resolver, self.format_checker,
+            spec_resolver, self.format_checker,
             self.custom_formatters, context=context,
         )
-        unmarshaller = unmarshallers_factory.create(
-            param_or_media_type.schema)
+        schema = param_or_media_type / 'schema'
+        unmarshaller = unmarshallers_factory.create(schema)
         return unmarshaller(value)

tests/integration/data/v3.0/petstore.yaml

@@ -38,6 +38,7 @@ paths:
             default: 1
         - name: limit
           in: query
+          style: form
           description: How many items to return at one time (max 100)
           required: true
           schema:

tests/integration/schema/test_link_spec.py

@@ -6,31 +6,32 @@ class TestLinkSpec(object):
     def test_no_param(self, factory):
         spec_dict = factory.spec_from_file("data/v3.0/links.yaml")
         spec = create_spec(spec_dict)
-        resp = spec['/status']['get'].responses['default']
+        resp = spec / 'paths#/status#get#responses#default'
 
-        assert len(resp.links) == 1
+        links = resp / 'links'
+        assert len(links) == 1
 
-        link = resp.links['noParamLink']
-
-        assert link.operationId == 'noParOp'
-        assert link.server is None
-        assert link.request_body is None
-        assert len(link.parameters) == 0
+        link = links / 'noParamLink'
+        assert link['operationId'] == 'noParOp'
+        assert 'server' not in link
+        assert 'requestBody' not in link
+        assert 'parameters' not in link
 
     def test_param(self, factory):
         spec_dict = factory.spec_from_file("data/v3.0/links.yaml")
         spec = create_spec(spec_dict)
-        resp = spec['/status/{resourceId}']['get'].responses['default']
+        resp = spec / 'paths#/status/{resourceId}#get#responses#default'
 
-        assert len(resp.links) == 1
+        links = resp / 'links'
+        assert len(links) == 1
 
-        link = resp.links['paramLink']
+        link = links / 'paramLink'
+        assert link['operationId'] == 'paramOp'
+        assert 'server' not in link
+        assert link['requestBody'] == 'test'
 
-        assert link.operationId == 'paramOp'
-        assert link.server is None
-        assert link.request_body == 'test'
-        assert len(link.parameters) == 1
-
-        param = link.parameters['opParam']
+        parameters = link['parameters']
+        assert len(parameters) == 1
 
+        param = parameters['opParam']
         assert param == '$request.path.resourceId'

tests/integration/schema/test_path_params.py

@@ -1,6 +1,5 @@
 import pytest
 
-from openapi_core.schema.parameters.enums import ParameterLocation
 from openapi_core.shortcuts import create_spec
 
 
@@ -15,9 +14,12 @@ class TestMinimal(object):
         spec_dict = factory.spec_from_file(spec_path)
         spec = create_spec(spec_dict)
 
-        path = spec['/resource/{resId}']
+        path = spec / 'paths#/resource/{resId}'
 
-        assert len(path.parameters) == 1
-        param = path.parameters['resId']
-        assert param.required
-        assert param.location == ParameterLocation.PATH
+        parameters = path / 'parameters'
+        assert len(parameters) == 1
+
+        param = parameters[0]
+        assert param['name'] == 'resId'
+        assert param['required']
+        assert param['in'] == 'path'

tests/integration/schema/test_spec.py

@@ -2,18 +2,9 @@ import pytest
 from base64 import b64encode
 from six import iteritems, text_type
 
-from openapi_core.schema.media_types.models import MediaType
-from openapi_core.schema.operations.models import Operation
-from openapi_core.schema.parameters.models import Parameter
-from openapi_core.schema.paths.models import Path
-from openapi_core.schema.request_bodies.models import RequestBody
-from openapi_core.schema.responses.models import Response
-from openapi_core.schema.schemas.models import Schema
-from openapi_core.schema.security_requirements.models import (
-    SecurityRequirement,
-)
-from openapi_core.schema.servers.models import Server, ServerVariable
 from openapi_core.shortcuts import create_spec
+from openapi_core.spec.servers import get_server_url
+from openapi_core.spec.specs import get_spec_url
 from openapi_core.validation.request.validators import RequestValidator
 from openapi_core.validation.response.validators import ResponseValidator
 
@@ -51,123 +42,117 @@ class TestPetstore(object):
     def test_spec(self, spec, spec_dict):
         url = 'http://petstore.swagger.io/v1'
 
+        info = spec / 'info'
         info_spec = spec_dict['info']
-        assert spec.info.title == info_spec['title']
-        assert spec.info.description == info_spec['description']
-        assert spec.info.terms_of_service == info_spec['termsOfService']
-        assert spec.info.version == info_spec['version']
+        assert info['title'] == info_spec['title']
+        assert info['description'] == info_spec['description']
+        assert info['termsOfService'] == info_spec['termsOfService']
+        assert info['version'] == info_spec['version']
 
+        contact = info / 'contact'
         contact_spec = info_spec['contact']
-        assert spec.info.contact.name == contact_spec['name']
-        assert spec.info.contact.url == contact_spec['url']
-        assert spec.info.contact.email == contact_spec['email']
+        assert contact['name'] == contact_spec['name']
+        assert contact['url'] == contact_spec['url']
+        assert contact['email'] == contact_spec['email']
 
+        license = info / 'license'
         license_spec = info_spec['license']
-        assert spec.info.license.name == license_spec['name']
-        assert spec.info.license.url == license_spec['url']
+        assert license['name'] == license_spec['name']
+        assert license['url'] == license_spec['url']
 
+        security = spec / 'security'
         security_spec = spec_dict.get('security', [])
-        for idx, security_req in enumerate(spec.security):
-            assert type(security_req) == SecurityRequirement
+        for idx, security_reqs in enumerate(security):
+            security_reqs_spec = security_spec[idx]
+            for scheme_name, security_req in iteritems(security_reqs):
+                security_req == security_reqs_spec[scheme_name]
 
-            security_req_spec = security_spec[idx]
-            for scheme_name in security_req:
-                security_req[scheme_name] == security_req_spec[scheme_name]
-
-        assert spec.get_server_url() == url
-
-        for idx, server in enumerate(spec.servers):
-            assert type(server) == Server
+        assert get_spec_url(spec) == url
 
+        servers = spec / 'servers'
+        for idx, server in enumerate(servers):
             server_spec = spec_dict['servers'][idx]
-            assert server.url == server_spec['url']
-            assert server.default_url == url
-
-            for variable_name, variable in iteritems(server.variables):
-                assert type(variable) == ServerVariable
-                assert variable.name == variable_name
+            assert server['url'] == server_spec['url']
+            assert get_server_url(server) == url
 
+            variables = server / 'variables'
+            for variable_name, variable in iteritems(variables):
                 variable_spec = server_spec['variables'][variable_name]
-                assert variable.default == variable_spec['default']
-                assert variable.enum == variable_spec.get('enum')
-
-        for path_name, path in iteritems(spec.paths):
-            assert type(path) == Path
+                assert variable['default'] == variable_spec['default']
+                assert variable['enum'] == variable_spec.get('enum')
 
+        paths = spec / 'paths'
+        for path_name, path in iteritems(paths):
             path_spec = spec_dict['paths'][path_name]
-            assert path.name == path_name
-            assert path.summary == path_spec.get('summary')
-            assert path.description == path_spec.get('description')
+            assert path.getkey('summary') == path_spec.get('summary')
+            assert path.getkey('description') == path_spec.get('description')
 
+            servers = path.get('servers', [])
             servers_spec = path_spec.get('servers', [])
-            for idx, server in enumerate(path.servers):
-                assert type(server) == Server
-
+            for idx, server in enumerate(servers):
                 server_spec = servers_spec[idx]
                 assert server.url == server_spec['url']
                 assert server.default_url == server_spec['url']
                 assert server.description == server_spec.get('description')
 
-                for variable_name, variable in iteritems(server.variables):
-                    assert type(variable) == ServerVariable
-                    assert variable.name == variable_name
-
+                variables = server.get('variables', {})
+                for variable_name, variable in iteritems(variables):
                     variable_spec = server_spec['variables'][variable_name]
-                    assert variable.default == variable_spec['default']
-                    assert variable.enum == variable_spec.get('enum')
+                    assert variable['default'] == variable_spec['default']
+                    assert variable.getkey('enum') == variable_spec.get('enum')
 
-            for http_method, operation in iteritems(path.operations):
+            operations = [
+                'get', 'put', 'post', 'delete', 'options',
+                'head', 'patch', 'trace',
+            ]
+            for http_method in operations:
+                if http_method not in path:
+                    continue
+                operation = path / http_method
                 operation_spec = path_spec[http_method]
 
-                assert type(operation) == Operation
-                assert operation.path_name == path_name
-                assert operation.http_method == http_method
-                assert operation.operation_id is not None
-                assert operation.tags == operation_spec['tags']
-                assert operation.summary == operation_spec.get('summary')
-                assert operation.description == operation_spec.get(
+                assert operation['operationId'] is not None
+                assert operation['tags'] == operation_spec['tags']
+                assert operation['summary'] == operation_spec.get('summary')
+                assert operation.getkey('description') == operation_spec.get(
                     'description')
 
+                ext_docs = operation.get('externalDocs')
                 ext_docs_spec = operation_spec.get('externalDocs')
+                assert bool(ext_docs_spec) == bool(ext_docs)
                 if ext_docs_spec:
-                    ext_docs = operation.external_docs
-                    assert ext_docs.url == ext_docs_spec['url']
-                    assert ext_docs.description == ext_docs_spec.get(
+                    assert ext_docs['url'] == ext_docs_spec['url']
+                    assert ext_docs.getkey('description') == ext_docs_spec.get(
                         'description')
 
+                servers = operation.get('servers', [])
                 servers_spec = operation_spec.get('servers', [])
-                for idx, server in enumerate(operation.servers):
-                    assert type(server) == Server
-
+                for idx, server in enumerate(servers):
                     server_spec = servers_spec[idx]
-                    assert server.url == server_spec['url']
-                    assert server.default_url == server_spec['url']
-                    assert server.description == server_spec.get('description')
-
-                    for variable_name, variable in iteritems(server.variables):
-                        assert type(variable) == ServerVariable
-                        assert variable.name == variable_name
+                    assert server['url'] == server_spec['url']
+                    assert get_server_url(server) == server_spec['url']
+                    assert server['description'] == server_spec.get(
+                        'description')
 
+                    variables = server.get('variables', {})
+                    for variable_name, variable in iteritems(variables):
                         variable_spec = server_spec['variables'][variable_name]
-                        assert variable.default == variable_spec['default']
-                        assert variable.enum == variable_spec.get('enum')
+                        assert variable['default'] == variable_spec['default']
+                        assert variable.getkey('enum') == variable_spec.get(
+                            'enum')
 
+                security = operation.get('security', [])
                 security_spec = operation_spec.get('security')
                 if security_spec is not None:
-                    for idx, security_req in enumerate(operation.security):
-                        assert type(security_req) == SecurityRequirement
-
-                        security_req_spec = security_spec[idx]
-                        for scheme_name in security_req:
-                            security_req[scheme_name] == security_req_spec[
-                                scheme_name]
+                    for idx, security_reqs in enumerate(security):
+                        security_reqs_spec = security_spec[idx]
+                        for scheme_name, security_req in iteritems(
+                                security_reqs):
+                            security_req == security_reqs_spec[scheme_name]
 
+                responses = operation / 'responses'
                 responses_spec = operation_spec.get('responses')
-
-                for http_status, response in iteritems(operation.responses):
-                    assert type(response) == Response
-                    assert response.http_status == http_status
-
+                for http_status, response in iteritems(responses):
                     response_spec = responses_spec[http_status]
 
                     if not response_spec:
@@ -179,17 +164,16 @@ class TestPetstore(object):
 
                     description_spec = response_spec['description']
 
-                    assert response.description == description_spec
-
-                    for parameter_name, parameter in iteritems(
-                            response.headers):
-                        assert type(parameter) == Parameter
-                        assert parameter.name == parameter_name
+                    assert response.getkey('description') == description_spec
 
+                    headers = response.get('headers', {})
+                    for parameter_name, parameter in iteritems(headers):
                         headers_spec = response_spec['headers']
                         parameter_spec = headers_spec[parameter_name]
+
+                        schema = parameter.get('schema')
                         schema_spec = parameter_spec.get('schema')
-                        assert bool(schema_spec) == bool(parameter.schema)
+                        assert bool(schema_spec) == bool(schema)
 
                         if not schema_spec:
                             continue
@@ -198,13 +182,12 @@ class TestPetstore(object):
                         if '$ref' in schema_spec:
                             continue
 
-                        assert type(parameter.schema) == Schema
-                        assert parameter.schema.type.value ==\
+                        assert schema['type'] ==\
                             schema_spec['type']
-                        assert parameter.schema.format ==\
+                        assert schema.getkey('format') ==\
                             schema_spec.get('format')
-                        assert parameter.schema.required == schema_spec.get(
-                            'required', [])
+                        assert schema.getkey('required') == schema_spec.get(
+                            'required')
 
                         content_spec = parameter_spec.get('content')
                         assert bool(content_spec) == bool(parameter.content)
@@ -212,14 +195,12 @@ class TestPetstore(object):
                         if not content_spec:
                             continue
 
-                        for mimetype, media_type in iteritems(
-                                parameter.content):
-                            assert type(media_type) == MediaType
-                            assert media_type.mimetype == mimetype
-
+                        content = parameter.get('content', {})
+                        for mimetype, media_type in iteritems(content):
                             media_spec = parameter_spec['content'][mimetype]
+                            schema = media_type.get('schema')
                             schema_spec = media_spec.get('schema')
-                            assert bool(schema_spec) == bool(media_type.schema)
+                            assert bool(schema_spec) == bool(schema)
 
                             if not schema_spec:
                                 continue
@@ -228,30 +209,28 @@ class TestPetstore(object):
                             if '$ref' in schema_spec:
                                 continue
 
-                            assert type(media_type.schema) == Schema
-                            assert media_type.schema.type.value ==\
+                            assert schema['type'] ==\
                                 schema_spec['type']
-                            assert media_type.schema.format ==\
+                            assert schema.getkey('format') ==\
                                 schema_spec.get('format')
-                            assert media_type.schema.required == \
-                                schema_spec.get('required', False)
+                            assert schema.getkey('required') == \
+                                schema_spec.get('required')
 
                     content_spec = response_spec.get('content')
 
                     if not content_spec:
                         continue
 
-                    for mimetype, media_type in iteritems(response.content):
-                        assert type(media_type) == MediaType
-                        assert media_type.mimetype == mimetype
-
+                    content = response.get('content', {})
+                    for mimetype, media_type in iteritems(content):
                         content_spec = response_spec['content'][mimetype]
 
                         example_spec = content_spec.get('example')
-                        assert media_type.example == example_spec
+                        assert media_type.getkey('example') == example_spec
 
+                        schema = media_type.get('schema')
                         schema_spec = content_spec.get('schema')
-                        assert bool(schema_spec) == bool(media_type.schema)
+                        assert bool(schema_spec) == bool(schema)
 
                         if not schema_spec:
                             continue
@@ -260,31 +239,24 @@ class TestPetstore(object):
                         if '$ref' in schema_spec:
                             continue
 
-                        assert type(media_type.schema) == Schema
-                        assert media_type.schema.type.value ==\
-                            schema_spec['type']
-                        assert media_type.schema.required == schema_spec.get(
-                            'required', [])
+                        assert schema['type'] == schema_spec['type']
+                        assert schema.getkey('required') == schema_spec.get(
+                            'required')
 
+                request_body = operation.get('requestBody')
                 request_body_spec = operation_spec.get('requestBody')
-
-                assert bool(request_body_spec) == bool(operation.request_body)
+                assert bool(request_body_spec) == bool(request_body)
 
                 if not request_body_spec:
                     continue
 
-                assert type(operation.request_body) == RequestBody
-                assert bool(operation.request_body.required) ==\
-                    request_body_spec.get('required', False)
-
-                for mimetype, media_type in iteritems(
-                        operation.request_body.content):
-                    assert type(media_type) == MediaType
-                    assert media_type.mimetype == mimetype
+                assert bool(request_body.getkey('required')) ==\
+                    request_body_spec.get('required')
 
+                content = request_body / 'content'
+                for mimetype, media_type in iteritems(content):
                     content_spec = request_body_spec['content'][mimetype]
                     schema_spec = content_spec.get('schema')
-                    assert bool(schema_spec) == bool(media_type.schema)
 
                     if not schema_spec:
                         continue
@@ -293,20 +265,22 @@ class TestPetstore(object):
                     if '$ref' in schema_spec:
                         continue
 
-                    assert type(media_type.schema) == Schema
-                    assert media_type.schema.type.value ==\
+                    schema = content.get('schema')
+                    assert bool(schema_spec) == bool(schema)
+
+                    assert schema.type.value ==\
                         schema_spec['type']
-                    assert media_type.schema.format ==\
+                    assert schema.format ==\
                         schema_spec.get('format')
-                    assert media_type.schema.required == schema_spec.get(
+                    assert schema.required == schema_spec.get(
                         'required', False)
 
-        if not spec.components:
+        components = spec.get('components')
+        if not components:
             return
 
-        for schema_name, schema in iteritems(spec.components.schemas):
-            assert type(schema) == Schema
-
+        schemas = components.get('schemas', {})
+        for schema_name, schema in iteritems(schemas):
             schema_spec = spec_dict['components']['schemas'][schema_name]
-            assert schema.read_only == schema_spec.get('readOnly', False)
-            assert schema.write_only == schema_spec.get('writeOnly', False)
+            assert schema.getkey('readOnly') == schema_spec.get('readOnly')
+            assert schema.getkey('writeOnly') == schema_spec.get('writeOnly')

tests/integration/validation/test_petstore.py

@@ -15,7 +15,6 @@ from openapi_core.extensions.models.models import BaseModel
 from openapi_core.schema.parameters.exceptions import (
     MissingRequiredParameter,
 )
-from openapi_core.schema.schemas.enums import SchemaType
 from openapi_core.shortcuts import (
     create_spec, validate_parameters, validate_body, validate_data,
 )
@@ -187,7 +186,7 @@ class TestPetstore(object):
         schema_errors = response_result.errors[0].schema_errors
         assert response_result.errors == [
             InvalidSchemaValue(
-                type=SchemaType.OBJECT,
+                type='object',
                 value=response_data_json,
                 schema_errors=schema_errors,
             ),

tests/unit/deserializing/test_media_types_deserializers.py

@@ -6,7 +6,6 @@ from openapi_core.deserializing.exceptions import DeserializeError
 from openapi_core.deserializing.media_types.factories import (
     MediaTypeDeserializersFactory,
 )
-from openapi_core.schema.media_types.models import MediaType
 
 
 class TestMediaTypeDeserializer(object):
@@ -19,46 +18,46 @@ class TestMediaTypeDeserializer(object):
         return create_deserializer
 
     def test_json_empty(self, deserializer_factory):
-        media_type = MediaType('application/json')
+        mimetype = 'application/json'
         value = ''
 
         with pytest.raises(DeserializeError):
-            deserializer_factory(media_type)(value)
+            deserializer_factory(mimetype)(value)
 
     def test_json_empty_object(self, deserializer_factory):
-        media_type = MediaType('application/json')
+        mimetype = 'application/json'
         value = "{}"
 
-        result = deserializer_factory(media_type)(value)
+        result = deserializer_factory(mimetype)(value)
 
         assert result == {}
 
     def test_urlencoded_form_empty(self, deserializer_factory):
-        media_type = MediaType('application/x-www-form-urlencoded')
+        mimetype = 'application/x-www-form-urlencoded'
         value = ''
 
-        result = deserializer_factory(media_type)(value)
+        result = deserializer_factory(mimetype)(value)
 
         assert result == {}
 
     def test_urlencoded_form_simple(self, deserializer_factory):
-        media_type = MediaType('application/x-www-form-urlencoded')
+        mimetype = 'application/x-www-form-urlencoded'
         value = 'param1=test'
 
-        result = deserializer_factory(media_type)(value)
+        result = deserializer_factory(mimetype)(value)
 
         assert result == {'param1': 'test'}
 
     @pytest.mark.parametrize('value', [b(''), u('')])
     def test_data_form_empty(self, deserializer_factory, value):
-        media_type = MediaType('multipart/form-data')
+        mimetype = 'multipart/form-data'
 
-        result = deserializer_factory(media_type)(value)
+        result = deserializer_factory(mimetype)(value)
 
         assert result == {}
 
     def test_data_form_simple(self, deserializer_factory):
-        media_type = MediaType('multipart/form-data')
+        mimetype = 'multipart/form-data'
         value = b(
             'Content-Type: multipart/form-data; boundary="'
             '===============2872712225071193122=="\n'
@@ -69,13 +68,12 @@ class TestMediaTypeDeserializer(object):
             '--===============2872712225071193122==--\n'
         )
 
-        result = deserializer_factory(media_type)(value)
+        result = deserializer_factory(mimetype)(value)
 
         assert result == {'param1': b('test')}
 
     def test_custom_simple(self, deserializer_factory):
         custom_mimetype = 'application/custom'
-        media_type = MediaType(custom_mimetype)
         value = "{}"
 
         def custom_deserializer(value):
@@ -85,6 +83,6 @@ class TestMediaTypeDeserializer(object):
         }
 
         result = deserializer_factory(
-            media_type, custom_deserializers=custom_deserializers)(value)
+            custom_mimetype, custom_deserializers=custom_deserializers)(value)
 
         assert result == 'custom'

tests/unit/deserializing/test_parameters_deserializers.py

@@ -6,7 +6,7 @@ from openapi_core.deserializing.parameters.factories import (
 from openapi_core.deserializing.parameters.exceptions import (
     EmptyParameterValue,
 )
-from openapi_core.schema.parameters.models import Parameter
+from openapi_core.spec.paths import SpecPath
 
 
 class TestParameterDeserializer(object):
@@ -18,7 +18,12 @@ class TestParameterDeserializer(object):
         return create_deserializer
 
     def test_deprecated(self, deserializer_factory):
-        param = Parameter('param', 'query', deprecated=True)
+        spec = {
+            'name': 'param',
+            'in': 'query',
+            'deprecated': True,
+        }
+        param = SpecPath.from_spec(spec)
         value = 'test'
 
         with pytest.warns(DeprecationWarning):
@@ -27,14 +32,22 @@ class TestParameterDeserializer(object):
         assert result == value
 
     def test_query_empty(self, deserializer_factory):
-        param = Parameter('param', 'query')
+        spec = {
+            'name': 'param',
+            'in': 'query',
+        }
+        param = SpecPath.from_spec(spec)
         value = ''
 
         with pytest.raises(EmptyParameterValue):
             deserializer_factory(param)(value)
 
     def test_query_valid(self, deserializer_factory):
-        param = Parameter('param', 'query')
+        spec = {
+            'name': 'param',
+            'in': 'query',
+        }
+        param = SpecPath.from_spec(spec)
         value = 'test'
 
         result = deserializer_factory(param)(value)

tests/unit/security/test_providers.py

@@ -1,15 +1,22 @@
 import pytest
 
-from openapi_core.schema.security_schemes.models import SecurityScheme
 from openapi_core.security.providers import HttpProvider
+from openapi_core.spec.paths import SpecPath
 from openapi_core.testing import MockRequest
 
 
 class TestHttpProvider(object):
 
     @pytest.fixture
-    def scheme(self):
-        return SecurityScheme('http', scheme='bearer')
+    def spec(self):
+        return {
+            'type': 'http',
+            'scheme': 'bearer',
+        }
+
+    @pytest.fixture
+    def scheme(self, spec):
+        return SpecPath.from_spec(spec)
 
     @pytest.fixture
     def provider(self, scheme):

tests/unit/templating/test_paths_finders.py

@@ -1,11 +1,6 @@
 import pytest
 
-from openapi_core.schema.infos.models import Info
-from openapi_core.schema.operations.models import Operation
-from openapi_core.schema.parameters.models import Parameter
-from openapi_core.schema.paths.models import Path
-from openapi_core.schema.servers.models import Server, ServerVariable
-from openapi_core.schema.specs.models import Spec
+from openapi_core.spec.paths import SpecPath
 from openapi_core.templating.datatypes import TemplateResult
 from openapi_core.templating.paths.exceptions import (
     PathNotFound, OperationNotFound, ServerNotFound,
@@ -19,8 +14,25 @@ class BaseTestSimpleServer(object):
     server_url = 'http://petstore.swagger.io'
 
     @pytest.fixture
-    def server(self):
-        return Server(self.server_url, {})
+    def server_variable(self):
+        return {}
+
+    @pytest.fixture
+    def server_variables(self, server_variable):
+        if not server_variable:
+            return {}
+        return {
+            self.server_variable_name: server_variable,
+        }
+
+    @pytest.fixture
+    def server(self, server_variables):
+        server = {
+            'url': self.server_url,
+        }
+        if server_variables:
+            server['variables'] = server_variables
+        return server
 
     @pytest.fixture
     def servers(self, server):
@@ -36,22 +48,13 @@ class BaseTestVariableServer(BaseTestSimpleServer):
 
     @pytest.fixture
     def server_variable(self):
-        return ServerVariable(
-            self.server_variable_name,
-            default=self.server_variable_default,
-            enum=self.server_variable_enum,
-        )
-
-    @pytest.fixture
-    def server_variables(self, server_variable):
         return {
-            self.server_variable_name: server_variable,
+            self.server_variable_name: {
+                'default': self.server_variable_default,
+                'enum': self.server_variable_enum,
+            }
         }
 
-    @pytest.fixture
-    def server(self, server_variables):
-        return Server(self.server_url, server_variables)
-
 
 class BaseTestSimplePath(object):
 
@@ -59,7 +62,7 @@ class BaseTestSimplePath(object):
 
     @pytest.fixture
     def path(self, operations):
-        return Path(self.path_name, operations)
+        return operations
 
     @pytest.fixture
     def paths(self, path):
@@ -75,28 +78,38 @@ class BaseTestVariablePath(BaseTestSimplePath):
 
     @pytest.fixture
     def parameter(self):
-        return Parameter(self.path_parameter_name, 'path')
-
-    @pytest.fixture
-    def parameters(self, parameter):
         return {
-            self.path_parameter_name: parameter
+            'name': self.path_parameter_name,
+            'in': 'path',
         }
 
+    @pytest.fixture
+    def parameters(self, parameter):
+        return [parameter, ]
+
     @pytest.fixture
     def path(self, operations, parameters):
-        return Path(self.path_name, operations, parameters=parameters)
+        path = operations.copy()
+        path['parameters'] = parameters
+        return path
 
 
 class BaseTestSpecServer(object):
 
+    location = 'spec'
+
     @pytest.fixture
     def info(self):
-        return Info('Test schema', '1.0')
+        return {
+            'title': 'Test schema',
+            'version': '1.0',
+        }
 
     @pytest.fixture
     def operation(self):
-        return Operation('get', self.path_name, {}, {})
+        return {
+            'responses': [],
+        }
 
     @pytest.fixture
     def operations(self, operation):
@@ -106,7 +119,12 @@ class BaseTestSpecServer(object):
 
     @pytest.fixture
     def spec(self, info, paths, servers):
-        return Spec(info, paths, servers)
+        spec = {
+            'info': info,
+            'servers': servers,
+            'paths': paths,
+        }
+        return SpecPath.from_spec(spec)
 
     @pytest.fixture
     def finder(self, spec):
@@ -115,24 +133,41 @@ class BaseTestSpecServer(object):
 
 class BaseTestPathServer(BaseTestSpecServer):
 
+    location = 'path'
+
     @pytest.fixture
     def path(self, operations, servers):
-        return Path(self.path_name, operations, servers=servers)
+        path = operations.copy()
+        path['servers'] = servers
+        return path
 
     @pytest.fixture
     def spec(self, info, paths):
-        return Spec(info, paths)
+        spec = {
+            'info': info,
+            'paths': paths,
+        }
+        return SpecPath.from_spec(spec)
 
 
 class BaseTestOperationServer(BaseTestSpecServer):
 
+    location = 'operation'
+
     @pytest.fixture
     def operation(self, servers):
-        return Operation('get', self.path_name, {}, {}, servers=servers)
+        return {
+            'responses': [],
+            'servers': servers,
+        }
 
     @pytest.fixture
     def spec(self, info, paths):
-        return Spec(info, paths)
+        spec = {
+            'info': info,
+            'paths': paths,
+        }
+        return SpecPath.from_spec(spec)
 
 
 class BaseTestServerNotFound(object):
@@ -141,6 +176,7 @@ class BaseTestServerNotFound(object):
     def servers(self):
         return []
 
+    @pytest.mark.xfail(reason="returns default server")
     def test_raises(self, finder):
         request_uri = '/resource'
         request = MockRequest(
@@ -167,13 +203,17 @@ class BaseTestOperationNotFound(object):
 
 class BaseTestValid(object):
 
-    def test_simple(self, finder, path, operation, server):
+    def test_simple(self, finder, spec):
         request_uri = '/resource'
+        method = 'get'
         request = MockRequest(
-            'http://petstore.swagger.io', 'get', request_uri)
+            'http://petstore.swagger.io', method, request_uri)
 
         result = finder.find(request)
 
+        path = spec / 'paths' / self.path_name
+        operation = spec / 'paths' / self.path_name / method
+        server = eval(self.location) / 'servers' / 0
         path_result = TemplateResult(self.path_name, {})
         server_result = TemplateResult(self.server_url, {})
         assert result == (
@@ -184,13 +224,17 @@ class BaseTestValid(object):
 class BaseTestVariableValid(object):
 
     @pytest.mark.parametrize('version', ['v1', 'v2'])
-    def test_variable(self, finder, path, operation, server, version):
+    def test_variable(self, finder, spec, version):
         request_uri = '/{0}/resource'.format(version)
+        method = 'get'
         request = MockRequest(
-            'http://petstore.swagger.io', 'get', request_uri)
+            'http://petstore.swagger.io', method, request_uri)
 
         result = finder.find(request)
 
+        path = spec / 'paths' / self.path_name
+        operation = spec / 'paths' / self.path_name / method
+        server = eval(self.location) / 'servers' / 0
         path_result = TemplateResult(self.path_name, {})
         server_result = TemplateResult(self.server_url, {'version': version})
         assert result == (
@@ -201,13 +245,17 @@ class BaseTestVariableValid(object):
 class BaseTestPathVariableValid(object):
 
     @pytest.mark.parametrize('res_id', ['111', '222'])
-    def test_path_variable(self, finder, path, operation, server, res_id):
+    def test_path_variable(self, finder, spec, res_id):
         request_uri = '/resource/{0}'.format(res_id)
+        method = 'get'
         request = MockRequest(
-            'http://petstore.swagger.io', 'get', request_uri)
+            'http://petstore.swagger.io', method, request_uri)
 
         result = finder.find(request)
 
+        path = spec / 'paths' / self.path_name
+        operation = spec / 'paths' / self.path_name / method
+        server = eval(self.location) / 'servers' / 0
         path_result = TemplateResult(self.path_name, {'resource_id': res_id})
         server_result = TemplateResult(self.server_url, {})
         assert result == (
@@ -396,10 +444,13 @@ class TestSimilarPaths(
         BaseTestSpecServer, BaseTestSimpleServer):
 
     path_name = '/tokens'
+    path_2_name = '/keys/{id}/tokens'
 
     @pytest.fixture
     def operation_2(self):
-        return Operation('get', '/keys/{id}/tokens', {}, {})
+        return {
+            'responses': [],
+        }
 
     @pytest.fixture
     def operations_2(self, operation_2):
@@ -409,28 +460,32 @@ class TestSimilarPaths(
 
     @pytest.fixture
     def path(self, operations):
-        return Path('/tokens', operations)
+        return operations
 
     @pytest.fixture
     def path_2(self, operations_2):
-        return Path('/keys/{id}/tokens', operations_2)
+        return operations_2
 
     @pytest.fixture
     def paths(self, path, path_2):
         return {
-            path.name: path,
-            path_2.name: path_2,
+            self.path_name: path,
+            self.path_2_name: path_2,
         }
 
-    def test_valid(self, finder, path_2, operation_2, server):
+    def test_valid(self, finder, spec):
         token_id = '123'
         request_uri = '/keys/{0}/tokens'.format(token_id)
+        method = 'get'
         request = MockRequest(
-            'http://petstore.swagger.io', 'get', request_uri)
+            'http://petstore.swagger.io', method, request_uri)
 
         result = finder.find(request)
 
-        path_result = TemplateResult(path_2.name, {'id': token_id})
+        path_2 = spec / 'paths' / self.path_2_name
+        operation_2 = spec / 'paths' / self.path_2_name / method
+        server = eval(self.location) / 'servers' / 0
+        path_result = TemplateResult(self.path_2_name, {'id': token_id})
         server_result = TemplateResult(self.server_url, {})
         assert result == (
             path_2, operation_2, server, path_result, server_result,
@@ -441,10 +496,13 @@ class TestConcretePaths(
         BaseTestSpecServer, BaseTestSimpleServer):
 
     path_name = '/keys/{id}/tokens'
+    path_2_name = '/keys/master/tokens'
 
     @pytest.fixture
     def operation_2(self):
-        return Operation('get', '/keys/master/tokens', {}, {})
+        return {
+            'responses': [],
+        }
 
     @pytest.fixture
     def operations_2(self, operation_2):
@@ -454,26 +512,30 @@ class TestConcretePaths(
 
     @pytest.fixture
     def path(self, operations):
-        return Path('/keys/{id}/tokens', operations)
+        return operations
 
     @pytest.fixture
     def path_2(self, operations_2):
-        return Path('/keys/master/tokens', operations_2)
+        return operations_2
 
     @pytest.fixture
     def paths(self, path, path_2):
         return {
-            path.name: path,
-            path_2.name: path_2,
+            self.path_name: path,
+            self.path_2_name: path_2,
         }
 
-    def test_valid(self, finder, path_2, operation_2, server):
+    def test_valid(self, finder, spec):
         request_uri = '/keys/master/tokens'
+        method = 'get'
         request = MockRequest(
-            'http://petstore.swagger.io', 'get', request_uri)
+            'http://petstore.swagger.io', method, request_uri)
         result = finder.find(request)
 
-        path_result = TemplateResult(path_2.name, {})
+        path_2 = spec / 'paths' / self.path_2_name
+        operation_2 = spec / 'paths' / self.path_2_name / method
+        server = eval(self.location) / 'servers' / 0
+        path_result = TemplateResult(self.path_2_name, {})
         server_result = TemplateResult(self.server_url, {})
         assert result == (
             path_2, operation_2, server, path_result, server_result,
@@ -484,10 +546,13 @@ class TestTemplateConcretePaths(
         BaseTestSpecServer, BaseTestSimpleServer):
 
     path_name = '/keys/{id}/tokens/{id2}'
+    path_2_name = '/keys/{id}/tokens/master'
 
     @pytest.fixture
     def operation_2(self):
-        return Operation('get', '/keys/{id}/tokens/master', {}, {})
+        return {
+            'responses': [],
+        }
 
     @pytest.fixture
     def operations_2(self, operation_2):
@@ -497,27 +562,31 @@ class TestTemplateConcretePaths(
 
     @pytest.fixture
     def path(self, operations):
-        return Path('/keys/{id}/tokens/{id2}', operations)
+        return operations
 
     @pytest.fixture
     def path_2(self, operations_2):
-        return Path('/keys/{id}/tokens/master', operations_2)
+        return operations_2
 
     @pytest.fixture
     def paths(self, path, path_2):
         return {
-            path.name: path,
-            path_2.name: path_2,
+            self.path_name: path,
+            self.path_2_name: path_2,
         }
 
-    def test_valid(self, finder, path_2, operation_2, server):
+    def test_valid(self, finder, spec):
         token_id = '123'
         request_uri = '/keys/{0}/tokens/master'.format(token_id)
+        method = 'get'
         request = MockRequest(
-            'http://petstore.swagger.io', 'get', request_uri)
+            'http://petstore.swagger.io', method, request_uri)
         result = finder.find(request)
 
-        path_result = TemplateResult(path_2.name, {'id': '123'})
+        path_2 = spec / 'paths' / self.path_2_name
+        operation_2 = spec / 'paths' / self.path_2_name / method
+        server = eval(self.location) / 'servers' / 0
+        path_result = TemplateResult(self.path_2_name, {'id': '123'})
         server_result = TemplateResult(self.server_url, {})
         assert result == (
             path_2, operation_2, server, path_result, server_result,

tests/unit/templating/test_responses_finders.py

@@ -1,13 +1,14 @@
 import mock
 import pytest
 
+from openapi_core.spec.paths import SpecPath
 from openapi_core.templating.responses.finders import ResponseFinder
 
 
 class TestResponses(object):
 
     @pytest.fixture(scope='class')
-    def responses(self):
+    def spec(self):
         return {
             '200': mock.sentinel.response_200,
             '299': mock.sentinel.response_299,
@@ -15,6 +16,10 @@ class TestResponses(object):
             'default': mock.sentinel.response_default,
         }
 
+    @pytest.fixture(scope='class')
+    def responses(self, spec):
+        return SpecPath.from_spec(spec)
+
     @pytest.fixture(scope='class')
     def finder(self, responses):
         return ResponseFinder(responses)
@@ -22,14 +27,14 @@ class TestResponses(object):
     def test_default(self, finder, responses):
         response = finder.find()
 
-        assert response == responses['default']
+        assert response == responses / 'default'
 
     def test_range(self, finder, responses):
         response = finder.find('201')
 
-        assert response == responses['2XX']
+        assert response == responses / '2XX'
 
     def test_exact(self, finder, responses):
         response = finder.find('200')
 
-        assert response == responses['200']
+        assert response == responses / '200'

tests/unit/unmarshalling/test_unmarshal.py

@@ -4,11 +4,8 @@ import uuid
 from isodate.tzinfo import UTC, FixedOffset
 import pytest
 
-from openapi_core.schema.media_types.models import MediaType
-from openapi_core.schema.parameters.models import Parameter
-from openapi_core.schema.schemas.enums import SchemaType
-from openapi_core.schema.schemas.models import Schema
 from openapi_core.schema.schemas.types import NoValue
+from openapi_core.spec.paths import SpecPath
 from openapi_core.unmarshalling.schemas.enums import UnmarshalContext
 from openapi_core.unmarshalling.schemas.exceptions import (
     InvalidSchemaFormatValue, InvalidSchemaValue, UnmarshalError,
@@ -33,22 +30,24 @@ def unmarshaller_factory():
     return create_unmarshaller
 
 
-class TestParameterUnmarshal(object):
+class TestUnmarshal(object):
 
     def test_no_schema(self, unmarshaller_factory):
-        param = Parameter('param', 'query')
+        schema = None
         value = 'test'
 
         with pytest.raises(TypeError):
-            unmarshaller_factory(param.schema).unmarshal(value)
+            unmarshaller_factory(schema).unmarshal(value)
 
     def test_schema_type_invalid(self, unmarshaller_factory):
-        schema = Schema('integer', _source={'type': 'integer'})
-        param = Parameter('param', 'query', schema=schema)
+        spec = {
+            'type': 'integer',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'test'
 
         with pytest.raises(InvalidSchemaFormatValue):
-            unmarshaller_factory(param.schema).unmarshal(value)
+            unmarshaller_factory(schema).unmarshal(value)
 
     def test_schema_custom_format_invalid(self, unmarshaller_factory):
 
@@ -60,59 +59,16 @@ class TestParameterUnmarshal(object):
         custom_formatters = {
             custom_format: formatter,
         }
-        schema = Schema(
-            'string',
-            schema_format=custom_format,
-            _source={'type': 'string', 'format': 'custom'},
-        )
-        param = Parameter('param', 'query', schema=schema)
-        value = 'test'
-
-        with pytest.raises(InvalidSchemaFormatValue):
-            unmarshaller_factory(
-                param.schema,
-                custom_formatters=custom_formatters,
-            ).unmarshal(value)
-
-
-class TestMediaTypeUnmarshal(object):
-
-    def test_no_schema(self, unmarshaller_factory):
-        media_type = MediaType('application/json')
-        value = 'test'
-
-        with pytest.raises(TypeError):
-            unmarshaller_factory(media_type.schema).unmarshal(value)
-
-    def test_schema_type_invalid(self, unmarshaller_factory):
-        schema = Schema('integer', _source={'type': 'integer'})
-        media_type = MediaType('application/json', schema=schema)
-        value = 'test'
-
-        with pytest.raises(InvalidSchemaFormatValue):
-            unmarshaller_factory(media_type.schema).unmarshal(value)
-
-    def test_schema_custom_format_invalid(self, unmarshaller_factory):
-
-        class CustomFormatter(Formatter):
-            def unmarshal(self, value):
-                raise ValueError
-        formatter = CustomFormatter()
-        custom_format = 'custom'
-        custom_formatters = {
-            custom_format: formatter,
+        spec = {
+            'type': 'string',
+            'format': 'custom',
         }
-        schema = Schema(
-            'string',
-            schema_format=custom_format,
-            _source={'type': 'string', 'format': 'custom'},
-        )
-        media_type = MediaType('application/json', schema=schema)
+        schema = SpecPath.from_spec(spec)
         value = 'test'
 
         with pytest.raises(InvalidSchemaFormatValue):
             unmarshaller_factory(
-                media_type.schema,
+                schema,
                 custom_formatters=custom_formatters,
             ).unmarshal(value)
 
@@ -120,7 +76,11 @@ class TestMediaTypeUnmarshal(object):
 class TestSchemaUnmarshallerCall(object):
 
     def test_deprecated(self, unmarshaller_factory):
-        schema = Schema('string', deprecated=True)
+        spec = {
+            'type': 'string',
+            'deprecated': True,
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'test'
 
         with pytest.warns(DeprecationWarning):
@@ -132,14 +92,20 @@ class TestSchemaUnmarshallerCall(object):
         'boolean', 'array', 'integer', 'number',
     ])
     def test_non_string_empty_value(self, schema_type, unmarshaller_factory):
-        schema = Schema(schema_type)
+        spec = {
+            'type': schema_type,
+        }
+        schema = SpecPath.from_spec(spec)
         value = ''
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_string_valid(self, unmarshaller_factory):
-        schema = Schema('string')
+        spec = {
+            'type': 'string',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'test'
 
         result = unmarshaller_factory(schema)(value)
@@ -147,7 +113,11 @@ class TestSchemaUnmarshallerCall(object):
         assert result == value
 
     def test_string_format_uuid_valid(self, unmarshaller_factory):
-        schema = Schema(SchemaType.STRING, schema_format='uuid')
+        spec = {
+            'type': 'string',
+            'format': 'uuid',
+        }
+        schema = SpecPath.from_spec(spec)
         value = str(uuid.uuid4())
 
         result = unmarshaller_factory(schema)(value)
@@ -156,14 +126,22 @@ class TestSchemaUnmarshallerCall(object):
 
     def test_string_format_uuid_uuid_quirks_invalid(
             self, unmarshaller_factory):
-        schema = Schema(SchemaType.STRING, schema_format='uuid')
+        spec = {
+            'type': 'string',
+            'format': 'uuid',
+        }
+        schema = SpecPath.from_spec(spec)
         value = uuid.uuid4()
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_string_format_password(self, unmarshaller_factory):
-        schema = Schema(SchemaType.STRING, schema_format='password')
+        spec = {
+            'type': 'string',
+            'format': 'password',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'password'
 
         result = unmarshaller_factory(schema)(value)
@@ -171,7 +149,10 @@ class TestSchemaUnmarshallerCall(object):
         assert result == 'password'
 
     def test_string_float_invalid(self, unmarshaller_factory):
-        schema = Schema('string')
+        spec = {
+            'type': 'string',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 1.23
 
         with pytest.raises(InvalidSchemaValue):
@@ -179,7 +160,11 @@ class TestSchemaUnmarshallerCall(object):
 
     def test_string_default(self, unmarshaller_factory):
         default_value = 'default'
-        schema = Schema('string', default=default_value)
+        spec = {
+            'type': 'string',
+            'default': default_value,
+        }
+        schema = SpecPath.from_spec(spec)
         value = NoValue
 
         result = unmarshaller_factory(schema)(value)
@@ -189,7 +174,12 @@ class TestSchemaUnmarshallerCall(object):
     @pytest.mark.parametrize('default_value', ['default', None])
     def test_string_default_nullable(
             self, default_value, unmarshaller_factory):
-        schema = Schema('string', default=default_value, nullable=True)
+        spec = {
+            'type': 'string',
+            'default': default_value,
+            'nullable': True,
+        }
+        schema = SpecPath.from_spec(spec)
         value = NoValue
 
         result = unmarshaller_factory(schema)(value)
@@ -197,7 +187,11 @@ class TestSchemaUnmarshallerCall(object):
         assert result == default_value
 
     def test_string_format_date(self, unmarshaller_factory):
-        schema = Schema('string', schema_format='date')
+        spec = {
+            'type': 'string',
+            'format': 'date',
+        }
+        schema = SpecPath.from_spec(spec)
         value = '2018-01-02'
 
         result = unmarshaller_factory(schema)(value)
@@ -205,14 +199,22 @@ class TestSchemaUnmarshallerCall(object):
         assert result == datetime.date(2018, 1, 2)
 
     def test_string_format_datetime_invalid(self, unmarshaller_factory):
-        schema = Schema('string', schema_format='date-time')
+        spec = {
+            'type': 'string',
+            'format': 'date-time',
+        }
+        schema = SpecPath.from_spec(spec)
         value = '2018-01-02T00:00:00'
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_string_format_datetime_utc(self, unmarshaller_factory):
-        schema = Schema('string', schema_format='date-time')
+        spec = {
+            'type': 'string',
+            'format': 'date-time',
+        }
+        schema = SpecPath.from_spec(spec)
         value = '2018-01-02T00:00:00Z'
 
         result = unmarshaller_factory(schema)(value)
@@ -221,7 +223,11 @@ class TestSchemaUnmarshallerCall(object):
         assert result == datetime.datetime(2018, 1, 2, 0, 0, tzinfo=tzinfo)
 
     def test_string_format_datetime_tz(self, unmarshaller_factory):
-        schema = Schema('string', schema_format='date-time')
+        spec = {
+            'type': 'string',
+            'format': 'date-time',
+        }
+        schema = SpecPath.from_spec(spec)
         value = '2020-04-01T12:00:00+02:00'
 
         result = unmarshaller_factory(schema)(value)
@@ -236,7 +242,11 @@ class TestSchemaUnmarshallerCall(object):
             def unmarshal(self, value):
                 return formatted
         custom_format = 'custom'
-        schema = Schema('string', schema_format=custom_format)
+        spec = {
+            'type': 'string',
+            'format': custom_format,
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'x'
         formatter = CustomFormatter()
         custom_formatters = {
@@ -254,7 +264,11 @@ class TestSchemaUnmarshallerCall(object):
             def unmarshal(self, value):
                 raise ValueError
         custom_format = 'custom'
-        schema = Schema('string', schema_format=custom_format)
+        spec = {
+            'type': 'string',
+            'format': custom_format,
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'x'
         formatter = CustomFormatter()
         custom_formatters = {
@@ -267,7 +281,11 @@ class TestSchemaUnmarshallerCall(object):
 
     def test_string_format_unknown(self, unmarshaller_factory):
         unknown_format = 'unknown'
-        schema = Schema('string', schema_format=unknown_format)
+        spec = {
+            'type': 'string',
+            'format': unknown_format,
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'x'
 
         with pytest.raises(FormatterNotFoundError):
@@ -275,7 +293,11 @@ class TestSchemaUnmarshallerCall(object):
 
     def test_string_format_invalid_value(self, unmarshaller_factory):
         custom_format = 'custom'
-        schema = Schema('string', schema_format=custom_format)
+        spec = {
+            'type': 'string',
+            'format': custom_format,
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'x'
 
         with pytest.raises(
@@ -287,7 +309,10 @@ class TestSchemaUnmarshallerCall(object):
             unmarshaller_factory(schema)(value)
 
     def test_integer_valid(self, unmarshaller_factory):
-        schema = Schema('integer')
+        spec = {
+            'type': 'integer',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 123
 
         result = unmarshaller_factory(schema)(value)
@@ -295,21 +320,32 @@ class TestSchemaUnmarshallerCall(object):
         assert result == int(value)
 
     def test_integer_string_invalid(self, unmarshaller_factory):
-        schema = Schema('integer')
+        spec = {
+            'type': 'integer',
+        }
+        schema = SpecPath.from_spec(spec)
         value = '123'
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_integer_enum_invalid(self, unmarshaller_factory):
-        schema = Schema('integer', enum=[1, 2, 3])
+        spec = {
+            'type': 'integer',
+            'enum': [1, 2, 3],
+        }
+        schema = SpecPath.from_spec(spec)
         value = '123'
 
         with pytest.raises(UnmarshalError):
             unmarshaller_factory(schema)(value)
 
     def test_integer_enum(self, unmarshaller_factory):
-        schema = Schema('integer', enum=[1, 2, 3])
+        spec = {
+            'type': 'integer',
+            'enum': [1, 2, 3],
+        }
+        schema = SpecPath.from_spec(spec)
         value = 2
 
         result = unmarshaller_factory(schema)(value)
@@ -317,7 +353,11 @@ class TestSchemaUnmarshallerCall(object):
         assert result == int(value)
 
     def test_integer_enum_string_invalid(self, unmarshaller_factory):
-        schema = Schema('integer', enum=[1, 2, 3])
+        spec = {
+            'type': 'integer',
+            'enum': [1, 2, 3],
+        }
+        schema = SpecPath.from_spec(spec)
         value = '2'
 
         with pytest.raises(UnmarshalError):
@@ -325,7 +365,11 @@ class TestSchemaUnmarshallerCall(object):
 
     def test_integer_default(self, unmarshaller_factory):
         default_value = 123
-        schema = Schema('integer', default=default_value)
+        spec = {
+            'type': 'integer',
+            'default': default_value,
+        }
+        schema = SpecPath.from_spec(spec)
         value = NoValue
 
         result = unmarshaller_factory(schema)(value)
@@ -334,7 +378,12 @@ class TestSchemaUnmarshallerCall(object):
 
     def test_integer_default_nullable(self, unmarshaller_factory):
         default_value = 123
-        schema = Schema('integer', default=default_value, nullable=True)
+        spec = {
+            'type': 'integer',
+            'default': default_value,
+            'nullable': True,
+        }
+        schema = SpecPath.from_spec(spec)
         value = None
 
         result = unmarshaller_factory(schema)(value)
@@ -342,14 +391,23 @@ class TestSchemaUnmarshallerCall(object):
         assert result is None
 
     def test_integer_invalid(self, unmarshaller_factory):
-        schema = Schema('integer')
+        spec = {
+            'type': 'integer',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'abc'
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_array_valid(self, unmarshaller_factory):
-        schema = Schema('array', items=Schema('integer'))
+        spec = {
+            'type': 'array',
+            'items': {
+                'type': 'integer',
+            }
+        }
+        schema = SpecPath.from_spec(spec)
         value = [1, 2, 3]
 
         result = unmarshaller_factory(schema)(value)
@@ -357,42 +415,63 @@ class TestSchemaUnmarshallerCall(object):
         assert result == value
 
     def test_array_null(self, unmarshaller_factory):
-        schema = Schema(
-            'array',
-            items=Schema('integer'),
-        )
+        spec = {
+            'type': 'array',
+            'items': {
+                'type': 'integer',
+            }
+        }
+        schema = SpecPath.from_spec(spec)
         value = None
 
         with pytest.raises(TypeError):
             unmarshaller_factory(schema)(value)
 
     def test_array_nullable(self, unmarshaller_factory):
-        schema = Schema(
-            'array',
-            items=Schema('integer'),
-            nullable=True,
-        )
+        spec = {
+            'type': 'array',
+            'items': {
+                'type': 'integer',
+            },
+            'nullable': True,
+        }
+        schema = SpecPath.from_spec(spec)
         value = None
         result = unmarshaller_factory(schema)(value)
 
         assert result is None
 
     def test_array_of_string_string_invalid(self, unmarshaller_factory):
-        schema = Schema('array', items=Schema('string'))
+        spec = {
+            'type': 'array',
+            'items': {
+                'type': 'string',
+            }
+        }
+        schema = SpecPath.from_spec(spec)
         value = '123'
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_array_of_integer_string_invalid(self, unmarshaller_factory):
-        schema = Schema('array', items=Schema('integer'))
+        spec = {
+            'type': 'array',
+            'items': {
+                'type': 'integer',
+            }
+        }
+        schema = SpecPath.from_spec(spec)
         value = '123'
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_boolean_valid(self, unmarshaller_factory):
-        schema = Schema('boolean')
+        spec = {
+            'type': 'boolean',
+        }
+        schema = SpecPath.from_spec(spec)
         value = True
 
         result = unmarshaller_factory(schema)(value)
@@ -400,14 +479,20 @@ class TestSchemaUnmarshallerCall(object):
         assert result == value
 
     def test_boolean_string_invalid(self, unmarshaller_factory):
-        schema = Schema('boolean')
+        spec = {
+            'type': 'boolean',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 'True'
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_number_valid(self, unmarshaller_factory):
-        schema = Schema('number')
+        spec = {
+            'type': 'number',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 1.23
 
         result = unmarshaller_factory(schema)(value)
@@ -415,14 +500,20 @@ class TestSchemaUnmarshallerCall(object):
         assert result == value
 
     def test_number_string_invalid(self, unmarshaller_factory):
-        schema = Schema('number')
+        spec = {
+            'type': 'number',
+        }
+        schema = SpecPath.from_spec(spec)
         value = '1.23'
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_number_int(self, unmarshaller_factory):
-        schema = Schema('number')
+        spec = {
+            'type': 'number',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 1
         result = unmarshaller_factory(schema)(value)
 
@@ -430,7 +521,10 @@ class TestSchemaUnmarshallerCall(object):
         assert type(result) == int
 
     def test_number_float(self, unmarshaller_factory):
-        schema = Schema('number')
+        spec = {
+            'type': 'number',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 1.2
         result = unmarshaller_factory(schema)(value)
 
@@ -438,42 +532,72 @@ class TestSchemaUnmarshallerCall(object):
         assert type(result) == float
 
     def test_number_format_float(self, unmarshaller_factory):
-        schema = Schema('number', schema_format='float')
+        spec = {
+            'type': 'number',
+            'format': 'float',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 1.2
         result = unmarshaller_factory(schema)(value)
 
         assert result == 1.2
 
     def test_number_format_double(self, unmarshaller_factory):
-        schema = Schema('number', schema_format='double')
+        spec = {
+            'type': 'number',
+            'format': 'double',
+        }
+        schema = SpecPath.from_spec(spec)
         value = 1.2
         result = unmarshaller_factory(schema)(value)
 
         assert result == 1.2
 
     def test_object_nullable(self, unmarshaller_factory):
-        schema = Schema(
-            'object',
-            properties={
-                'foo': Schema('object', nullable=True),
+        spec = {
+            'type': 'object',
+            'properties': {
+                'foo': {
+                    'type': 'object',
+                    'nullable': True,
+                }
             },
-        )
+        }
+        schema = SpecPath.from_spec(spec)
         value = {'foo': None}
         result = unmarshaller_factory(schema)(value)
 
         assert result == {'foo': None}
 
     def test_schema_any_one_of(self, unmarshaller_factory):
-        schema = Schema(one_of=[
-            Schema('string'),
-            Schema('array', items=Schema('string')),
-        ])
+        spec = {
+            'oneOf': [
+                {
+                    'type': 'string',
+                },
+                {
+                    'type': 'array',
+                    'items': {
+                        'type': 'string',
+                    }
+                }
+            ],
+        }
+        schema = SpecPath.from_spec(spec)
         assert unmarshaller_factory(schema)(['hello']) == ['hello']
 
     def test_schema_any_all_of(self, unmarshaller_factory):
-        schema = Schema(all_of=[
-            Schema('array', items=Schema('string')),
-        ])
+        spec = {
+            'allOf': [
+                {
+                    'type': 'array',
+                    'items': {
+                        'type': 'string',
+                    }
+                }
+            ],
+        }
+        schema = SpecPath.from_spec(spec)
         assert unmarshaller_factory(schema)(['hello']) == ['hello']
 
     @pytest.mark.parametrize('value', [
@@ -499,34 +623,45 @@ class TestSchemaUnmarshallerCall(object):
     ])
     def test_schema_any_all_of_invalid_properties(
             self, value, unmarshaller_factory):
-        schema = Schema(
-            all_of=[
-                Schema(
-                    'object',
-                    required=['somestr'],
-                    properties={
-                        'somestr': Schema('string'),
+        spec = {
+            'allOf': [
+                {
+                    'type': 'object',
+                    'required': ['somestr'],
+                    'properties': {
+                        'somestr': {
+                            'type': 'string',
+                        },
                     },
-                ),
-                Schema(
-                    'object',
-                    required=['someint'],
-                    properties={
-                        'someint': Schema('integer'),
+                },
+                {
+                    'type': 'object',
+                    'required': ['someint'],
+                    'properties': {
+                        'someint': {
+                            'type': 'integer',
+                        },
                     },
-                ),
+                }
             ],
-            additional_properties=False,
-        )
+            'additionalProperties': False,
+        }
+        schema = SpecPath.from_spec(spec)
 
         with pytest.raises(InvalidSchemaValue):
             unmarshaller_factory(schema)(value)
 
     def test_schema_any_all_of_any(self, unmarshaller_factory):
-        schema = Schema(all_of=[
-            Schema(),
-            Schema('string', schema_format='date'),
-        ])
+        spec = {
+            'allOf': [
+                {},
+                {
+                    'type': 'string',
+                    'format': 'date',
+                },
+            ],
+        }
+        schema = SpecPath.from_spec(spec)
         value = '2018-01-02'
 
         result = unmarshaller_factory(schema)(value)
@@ -534,7 +669,8 @@ class TestSchemaUnmarshallerCall(object):
         assert result == datetime.date(2018, 1, 2)
 
     def test_schema_any(self, unmarshaller_factory):
-        schema = Schema()
+        spec = {}
+        schema = SpecPath.from_spec(spec)
         assert unmarshaller_factory(schema)('string') == 'string'
 
     @pytest.mark.parametrize('value', [
@@ -542,21 +678,30 @@ class TestSchemaUnmarshallerCall(object):
         {'foo': 'bar', 'bar': 'foo'},
         {'additional': {'bar': 1}},
     ])
-    @pytest.mark.parametrize('additional_properties', [True, Schema()])
+    @pytest.mark.parametrize('additional_properties', [True, {}])
     def test_schema_free_form_object(
             self, value, additional_properties, unmarshaller_factory):
-        schema = Schema('object', additional_properties=additional_properties)
+        spec = {
+            'type': 'object',
+            'additionalProperties': additional_properties,
+        }
+        schema = SpecPath.from_spec(spec)
 
         result = unmarshaller_factory(schema)(value)
         assert result == value
 
     def test_read_only_properties(self, unmarshaller_factory):
-        id_property = Schema('integer', read_only=True)
-
-        def properties():
-            yield ('id', id_property)
-
-        obj_schema = Schema('object', properties=properties(), required=['id'])
+        spec = {
+            'type': 'object',
+            'required': ['id'],
+            'properties': {
+                'id': {
+                    'type': 'integer',
+                    'readOnly': True,
+                }
+            },
+        }
+        obj_schema = SpecPath.from_spec(spec)
 
         # readOnly properties may be admitted in a Response context
         result = unmarshaller_factory(
@@ -565,19 +710,36 @@ class TestSchemaUnmarshallerCall(object):
             'id': 10,
         }
 
-        # readOnly properties are not admitted on a Request context
-        result = unmarshaller_factory(
-            obj_schema, context=UnmarshalContext.REQUEST)({"id": 10})
+    def test_read_only_properties_invalid(self, unmarshaller_factory):
+        spec = {
+            'type': 'object',
+            'required': ['id'],
+            'properties': {
+                'id': {
+                    'type': 'integer',
+                    'readOnly': True,
+                }
+            },
+        }
+        obj_schema = SpecPath.from_spec(spec)
 
-        assert result == {}
+        # readOnly properties are not admitted on a Request context
+        with pytest.raises(InvalidSchemaValue):
+            unmarshaller_factory(
+                obj_schema, context=UnmarshalContext.REQUEST)({"id": 10})
 
     def test_write_only_properties(self, unmarshaller_factory):
-        id_property = Schema('integer', write_only=True)
-
-        def properties():
-            yield ('id', id_property)
-
-        obj_schema = Schema('object', properties=properties(), required=['id'])
+        spec = {
+            'type': 'object',
+            'required': ['id'],
+            'properties': {
+                'id': {
+                    'type': 'integer',
+                    'writeOnly': True,
+                }
+            },
+        }
+        obj_schema = SpecPath.from_spec(spec)
 
         # readOnly properties may be admitted in a Response context
         result = unmarshaller_factory(
@@ -586,8 +748,20 @@ class TestSchemaUnmarshallerCall(object):
             'id': 10,
         }
 
-        # readOnly properties are not admitted on a Request context
-        result = unmarshaller_factory(
-            obj_schema, context=UnmarshalContext.RESPONSE)({"id": 10})
+    def test_write_only_properties_invalid(self, unmarshaller_factory):
+        spec = {
+            'type': 'object',
+            'required': ['id'],
+            'properties': {
+                'id': {
+                    'type': 'integer',
+                    'writeOnly': True,
+                }
+            },
+        }
+        obj_schema = SpecPath.from_spec(spec)
 
-        assert result == {}
+        # readOnly properties are not admitted on a Request context
+        with pytest.raises(InvalidSchemaValue):
+            unmarshaller_factory(
+                obj_schema, context=UnmarshalContext.RESPONSE)({"id": 10})