Blast-Furnace Hellkite - fixed game error on offering an artifact lands and treasures (#9940, #10218)

Mage.Tests/src/test/java/org/mage/test/cards/abilities/keywords/OfferingTest.java

@@ -9,10 +9,8 @@ public class OfferingTest extends CardTestPlayerBase {
 
     private static final String nezumiPatron = "Patron of the Nezumi";
 
-
     @Test
-    public void testOfferRatDecreaseCC() {
+    public void test_OfferRatDecreaseCC() {
-
         String kurosTaken = "Kuro's Taken";
 
         addCard(Zone.HAND, playerA, nezumiPatron, 1);
@@ -22,6 +20,8 @@ public class OfferingTest extends CardTestPlayerBase {
         castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, nezumiPatron);
         setChoice(playerA, true);
         addTarget(playerA, kurosTaken);
+
+        setStrictChooseMode(true);
         setStopAt(1, PhaseStep.POSTCOMBAT_MAIN);
         execute();
 
@@ -31,7 +31,7 @@ public class OfferingTest extends CardTestPlayerBase {
     }
 
     @Test
-    public void testDontOfferRatNotDecreaseCC() {
+    public void test_DontOfferRatNotDecreaseCC() {
 
         String kurosTaken = "Kuro's Taken";
 
@@ -41,6 +41,8 @@ public class OfferingTest extends CardTestPlayerBase {
 
         castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, nezumiPatron);
         setChoice(playerA, false);
+
+        setStrictChooseMode(true);
         setStopAt(1, PhaseStep.POSTCOMBAT_MAIN);
         execute();
 
@@ -50,9 +52,7 @@ public class OfferingTest extends CardTestPlayerBase {
     }
 
     @Test
-    public void testCastWithMinimalMana() {
+    public void test_CastWithMinimalMana() {
-        setStrictChooseMode(true);
-        
         // Goblin offering (You may cast this card any time you could cast an instant by sacrificing a Goblin and paying the difference in mana costs between this and the sacrificed Goblin. Mana cost includes color.)
         // Whenever Patron of the Akki attacks, creatures you control get +2/+0 until end of turn.        
         String patron = "Patron of the Akki"; // Creature {4}{R}{R} (5/5)
@@ -66,20 +66,17 @@ public class OfferingTest extends CardTestPlayerBase {
         setChoice(playerA, true);
         addTarget(playerA, "Akki Drillmaster");
 
+        setStrictChooseMode(true);
         setStopAt(1, PhaseStep.POSTCOMBAT_MAIN);
         execute();
 
         assertPermanentCount(playerA, patron, 1);
-        
         assertGraveyardCount(playerA, "Akki Drillmaster", 1);
-
     }
 
 
     @Test
-    public void testCastWithBorosRecruit() {
+    public void test_CastWithBorosRecruit() {
-        setStrictChooseMode(true);
-        
         // Goblin offering (You may cast this card any time you could cast an instant by sacrificing a Goblin and paying the difference in mana costs between this and the sacrificed Goblin. Mana cost includes color.)
         // Whenever Patron of the Akki attacks, creatures you control get +2/+0 until end of turn.        
         String patron = "Patron of the Akki"; // Creature {4}{R}{R} (5/5)
@@ -95,19 +92,16 @@ public class OfferingTest extends CardTestPlayerBase {
         setChoice(playerA, true);
         addTarget(playerA, "Boros Recruit");
 
+        setStrictChooseMode(true);
         setStopAt(1, PhaseStep.POSTCOMBAT_MAIN);
         execute();
 
         assertPermanentCount(playerA, patron, 1);
-        
         assertGraveyardCount(playerA, "Boros Recruit", 1);
-
     }
 
     @Test
-    public void testCastWithMultipleOptions() {
+    public void test_CastWithMultipleOptions() {
-        setStrictChooseMode(true);
-        
         // Goblin offering (You may cast this card any time you could cast an instant by sacrificing a Goblin and paying the difference in mana costs between this and the sacrificed Goblin. Mana cost includes color.)
         // Whenever Patron of the Akki attacks, creatures you control get +2/+0 until end of turn.        
         String patron = "Patron of the Akki"; // Creature {4}{R}{R} (5/5)
@@ -121,19 +115,35 @@ public class OfferingTest extends CardTestPlayerBase {
         addCard(Zone.BATTLEFIELD, playerA, "Akki Drillmaster"); // Creature Goblin {2}{R}  (2/2)
         addCard(Zone.BATTLEFIELD, playerA, "Boggart Ram-Gang"); // Creature Goblin Warrior {R/G}{R/G}{R/G}  (3/3)
 
-        
-
         castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, patron);
         setChoice(playerA, true);
         addTarget(playerA, "Boggart Ram-Gang");
 
+        setStrictChooseMode(true);
         setStopAt(1, PhaseStep.POSTCOMBAT_MAIN);
         execute();
 
         assertPermanentCount(playerA, patron, 1);
-        
         assertGraveyardCount(playerA, "Boggart Ram-Gang", 1);
-
     }
 
+    @Test
+    public void test_SacrificeLand() {
+        // bug: sacrifce permanent without a spell ability can cause NPE error
+
+        // Artifact offering
+        addCard(Zone.HAND, playerA, "Blast-Furnace Hellkite", 1); // {7}{R}{R}
+        addCard(Zone.BATTLEFIELD, playerA, "Mountain", 9);
+        addCard(Zone.BATTLEFIELD, playerA, "Ancient Den", 1); // Artifact Land
+
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Blast-Furnace Hellkite");
+        setChoice(playerA, true); // use offering
+        addTarget(playerA, "Ancient Den");
+
+        setStrictChooseMode(true);
+        setStopAt(1, PhaseStep.POSTCOMBAT_MAIN);
+        execute();
+
+        assertPermanentCount(playerA, "Blast-Furnace Hellkite", 1);
+    }
 }

Mage/src/main/java/mage/abilities/keyword/OfferingAbility.java

@@ -50,9 +50,6 @@ public class OfferingAbility extends StaticAbility implements AlternateManaPayme
 
     private final FilterControlledPermanent filter;
 
-    /**
-     * @param subtype name of the subtype that can be offered
-     */
     public OfferingAbility(FilterControlledPermanent filter) {
         super(Zone.ALL, null);
         this.filter = filter;
@@ -226,8 +223,11 @@ class OfferingCostReductionEffect extends CostModificationEffectImpl {
         Permanent toOffer = game.getPermanent(getTargetPointer().getFirst(game, source));
         if (toOffer != null) {
             toOffer.sacrifice(source, game);
+            if (toOffer.getSpellAbility() != null) {
+                // artifact land don't have spell ability
                 CardUtil.reduceCost((SpellAbility) abilityToModify, toOffer.getSpellAbility().getManaCosts());
             }
+        }
         game.getState().setValue("offering_" + source.getSourceId(), null);
         game.getState().setValue("offering_ok_" + source.getSourceId(), null);
         this.discard();