From 0d0c044a688490eb295ddd305247f406eefc0855 Mon Sep 17 00:00:00 2001
From: Lance Stout <lancestout@gmail.com>
Date: Thu, 5 Aug 2010 20:57:55 -0400
Subject: [PATCH] Add unit tests for the tostring function.

---
 tests/test_tostring.py | 104 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 tests/test_tostring.py

diff --git a/tests/test_tostring.py b/tests/test_tostring.py
new file mode 100644
index 0000000..2999949
--- /dev/null
+++ b/tests/test_tostring.py
@@ -0,0 +1,104 @@
+from . sleektest import *
+from sleekxmpp.stanza import Message
+from sleekxmpp.xmlstream.stanzabase import ET
+from sleekxmpp.xmlstream.tostring import tostring, xml_escape
+
+
+class TestToString(SleekTest):
+
+    """
+    Test the implementation of sleekxmpp.xmlstream.tostring
+    """
+
+    def tryTostring(self, original='', expected=None, message='', **kwargs):
+        """
+        Compare the result of calling tostring against an
+        expected result.
+        """
+        if not expected:
+            expected=original
+        if isinstance(original, str):
+            xml = ET.fromstring(original)
+        else:
+            xml=original
+        result = tostring(xml, **kwargs)
+        self.failUnless(result == expected, "%s: %s" % (message, result))
+
+    def testXMLEscape(self):
+        """Test escaping XML special characters."""
+        original = """<foo bar="baz">'Hi & welcome!'</foo>"""
+        escaped = xml_escape(original)
+        desired = """&lt;foo bar=&quot;baz&quot;&gt;&apos;Hi"""
+        desired += """ &amp; welcome!&apos;&lt;/foo&gt;"""
+
+        self.failUnless(escaped == desired,
+            "XML escaping did not work: %s." % escaped)
+
+    def testEmptyElement(self):
+        """Test converting an empty element to a string."""
+        self.tryTostring(
+            original='<bar xmlns="foo" />',
+            message="Empty element not serialized correctly")
+
+    def testEmptyElementWrapped(self):
+        """Test converting an empty element inside another element."""
+        self.tryTostring(
+            original='<bar xmlns="foo"><baz /></bar>',
+            message="Wrapped empty element not serialized correctly")
+
+    def testEmptyElementWrappedText(self):
+        """
+        Test converting an empty element wrapped with text
+        inside another element.
+        """
+        self.tryTostring(
+            original='<bar xmlns="foo">Some text. <baz /> More text.</bar>',
+            message="Text wrapped empty element serialized incorrectly")
+
+    def testMultipleChildren(self):
+        """Test converting multiple child elements to a Unicode string."""
+        self.tryTostring(
+            original='<bar xmlns="foo"><baz><qux /></baz><quux /></bar>',
+            message="Multiple child elements not serialized correctly")
+
+    def testXMLNS(self):
+        """
+        Test using xmlns tostring parameter, which will prevent adding
+        an xmlns attribute to the serialized element if the element's
+        namespace is the same.
+        """
+        self.tryTostring(
+            original='<bar xmlns="foo" />',
+            expected='<bar />',
+            message="The xmlns parameter was not used properly.",
+            xmlns='foo')
+
+    def testStanzaNs(self):
+        """
+        Test using the stanza_ns tostring parameter, which will prevent
+        adding an xmlns attribute to the serialized element if the
+        element's namespace is the same.
+        """
+        self.tryTostring(
+            original='<bar xmlns="foo" />',
+            expected='<bar />',
+            message="The stanza_ns parameter was not used properly.",
+            stanza_ns='foo')
+
+    def testStanzaStr(self):
+        """
+        Test that stanza objects are serialized properly.
+        """
+        utf8_message = '\xe0\xb2\xa0_\xe0\xb2\xa0'
+        if not hasattr(utf8_message, 'decode'):
+            # Python 3
+            utf8_message = bytes(utf8_message, encoding='utf-8')
+        msg = Message()
+        msg['body'] = utf8_message.decode('utf-8')
+        expected = '<message><body>\xe0\xb2\xa0_\xe0\xb2\xa0</body></message>'
+        result = msg.__str__()
+        self.failUnless(result == expected,
+             "Stanza Unicode handling is incorrect: %s" % result)
+
+
+suite = unittest.TestLoader().loadTestsFromTestCase(TestToString)