[test] use exact values for dry skin, swarm tests

test/ability_dry_skin.c

@@ -44,7 +44,11 @@ SINGLE_BATTLE_TEST("Dry Skin increases damage taken from Fire-type moves by 25%"
         MESSAGE("Wobbuffet used Ember!");
         HP_BAR(opponent, captureDamage: &results[i].damage);
     } FINALLY {
-        EXPECT_MUL_EQ(results[0].damage, Q_4_12(1.25), results[1].damage);
+        // Due to numerics related to rounding on each applied multiplier,
+        // the ability effect doesn't manifest as a 25% damage increase, but as a ~31% damage increase in this case.
+        // Values obtained from https://calc.pokemonshowdown.com (Neutral nature and 0 IVs on both sides)
+        EXPECT_EQ(results[0].damage, 52);
+        EXPECT_EQ(results[1].damage, 68);
     }
 }
 

test/ability_swarm.c

@@ -15,6 +15,10 @@ SINGLE_BATTLE_TEST("Swarm boosts Bug-type moves in a pinch", s16 damage)
     } SCENE {
         HP_BAR(opponent, captureDamage: &results[i].damage);
     } FINALLY {
-        EXPECT_MUL_EQ(results[0].damage, Q_4_12(1.5), results[1].damage);
+        // Due to numerics related to rounding on each applied multiplier,
+        // the 50% move power increase doesn't manifest as a 50% damage increase, but as a 44% damage increase in this case.
+        // Values obtained from https://calc.pokemonshowdown.com (Neutral nature and 0 IVs on both sides)
+        EXPECT_EQ(results[0].damage, 50);
+        EXPECT_EQ(results[1].damage, 72);
     }
 }