Fix for issue 647 (Evil Presence cast on a swamp removes mana ability)

projects/mtg/bin/Res/test/_tests.txt

@@ -260,6 +260,8 @@ erg_raiders_i157.txt
 evil_presence.txt
 evil_presence2.txt
 evil_presence3.txt
+evil_presence_i647.txt
+evil_presence_i647_2.txt
 explore.txt
 Faceless_Butcher.txt
 fangren_pathcutter.txt

projects/mtg/bin/Res/test/evil_presence_i647.txt

@@ -0,0 +1,21 @@
+#Testing Evil Presence on a swamp...it should have no visible effect
+# Bug: it removes the swamp's ability
+#see http://code.google.com/p/wagic/issues/detail?id=647
+[INIT]
+FIRSTMAIN
+[PLAYER1]
+hand:Evil Presence
+inplay:Swamp
+manapool:{B}
+[PLAYER2]
+[DO]
+Evil Presence
+Swamp
+Swamp
+[ASSERT]
+FIRSTMAIN
+[PLAYER1]
+inplay:Swamp,Evil Presence
+manapool:{B}
+[PLAYER2]
+[END]

projects/mtg/bin/Res/test/evil_presence_i647_2.txt

@@ -0,0 +1,33 @@
+#Testing Evil Presence on a swamp...it should have no visible effect
+# Bug: it removes the swamp's ability
+#In thistest we make sure we don't get a crash during the next turn, when abilities are added/removed from different sources
+#see http://code.google.com/p/wagic/issues/detail?id=647
+[INIT]
+FIRSTMAIN
+[PLAYER1]
+hand:Evil Presence, Disenchant
+inplay:Swamp,Forest,Plains
+manapool:{B}
+[PLAYER2]
+[DO]
+Evil Presence
+Swamp
+eot
+eot
+next
+#upkeep
+next
+#draw
+next
+#main
+Forest
+Plains
+Disenchant
+Evil Presence
+[ASSERT]
+FIRSTMAIN
+[PLAYER1]
+inplay:Swamp,Forest,Plains
+graveyard:Evil Presence,disenchant
+[PLAYER2]
+[END]