Water Compaction tests (#6159)

Co-authored-by: Hedara <hedara90@gmail.com>
Co-authored-by: Eduardo Quezada <eduardo602002@gmail.com>

test/battle/ability/water_compaction.c

@@ -0,0 +1,61 @@
+#include "global.h"
+#include "test/battle.h"
+
+SINGLE_BATTLE_TEST("Water Compaction raises Defense 2 stages when hit by a water type move")
+{
+    GIVEN {
+        ASSUME(gMovesInfo[MOVE_WATER_GUN].type == TYPE_WATER);
+        PLAYER(SPECIES_SANDYGAST) { Ability(ABILITY_WATER_COMPACTION); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_WATER_GUN); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_WATER_GUN, opponent);
+        ABILITY_POPUP(player, ABILITY_WATER_COMPACTION);
+    } THEN {
+        EXPECT_EQ(player->statStages[STAT_DEF], DEFAULT_STAT_STAGE + 2);
+    }
+}
+
+SINGLE_BATTLE_TEST("Water Compaction raises Defense 2 stages on each hit of a multi-hit Water type move")
+{
+    GIVEN {
+        ASSUME(gMovesInfo[MOVE_SURGING_STRIKES].type == TYPE_WATER);
+        ASSUME(gMovesInfo[MOVE_SURGING_STRIKES].strikeCount == 3);
+        PLAYER(SPECIES_SANDYGAST) { Ability(ABILITY_WATER_COMPACTION); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_SURGING_STRIKES); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_SURGING_STRIKES, opponent);
+        ABILITY_POPUP(player, ABILITY_WATER_COMPACTION);
+        MESSAGE("Sandygast's Defense sharply rose!");
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_SURGING_STRIKES, opponent);
+        ABILITY_POPUP(player, ABILITY_WATER_COMPACTION);
+        MESSAGE("Sandygast's Defense sharply rose!");
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_SURGING_STRIKES, opponent);
+        ABILITY_POPUP(player, ABILITY_WATER_COMPACTION);
+        MESSAGE("Sandygast's Defense sharply rose!");
+    } THEN {
+        EXPECT_EQ(player->statStages[STAT_DEF], DEFAULT_STAT_STAGE + 6);
+    }
+}
+
+SINGLE_BATTLE_TEST("Water Compaction does not affect damage taken from Water type moves", s16 damage)
+{
+    u16 ability;
+    PARAMETRIZE { ability = ABILITY_SAND_VEIL; }
+    PARAMETRIZE { ability = ABILITY_WATER_COMPACTION; }
+    GIVEN {
+        ASSUME(gMovesInfo[MOVE_WATER_GUN].type == TYPE_WATER);
+        PLAYER(SPECIES_SANDYGAST) { Ability(ability); }
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_WATER_GUN); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_WATER_GUN, opponent);
+        HP_BAR(player, captureDamage: &results[i].damage);
+    } FINALLY {
+        EXPECT_EQ(results[0].damage, results[1].damage);
+    }
+}