From 4d092dd908c4d982433fe521a8f1c8deebd2f10c Mon Sep 17 00:00:00 2001
From: Sirz Benjie <142067137+SirzBenjie@users.noreply.github.com>
Date: Tue, 20 May 2025 18:30:00 -0500
Subject: [PATCH] Add test for forecast

---
 test/abilities/forecast.test.ts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/test/abilities/forecast.test.ts b/test/abilities/forecast.test.ts
index 8d3a679c917..576a4158e60 100644
--- a/test/abilities/forecast.test.ts
+++ b/test/abilities/forecast.test.ts
@@ -277,4 +277,19 @@ describe("Abilities - Forecast", () => {
 
     expect(castform.formIndex).toBe(NORMAL_FORM);
   });
+
+  it("should trigger player's form change when summoned at the same time as an enemy with a weather changing ability", async () => {
+    // NOTE: The following pairs of tests are intentionally testing the same scenario, switching the player and enemy pokemon
+    // as this is a regression test where the order of player and enemy mattered.
+    game.override.enemyAbility(AbilityId.DROUGHT);
+    await game.classicMode.startBattle([SpeciesId.CASTFORM, SpeciesId.MAGIKARP]);
+    const castform = game.scene.getPlayerPokemon()!;
+    expect(castform.formIndex).toBe(SUNNY_FORM);
+  });
+  it("should trigger enemy's form change when summoned at the same time as a player with a weather changing ability", async () => {
+    game.override.ability(AbilityId.DROUGHT).enemySpecies(SpeciesId.CASTFORM);
+    await game.classicMode.startBattle([SpeciesId.MAGIKARP]);
+    const castform = game.scene.getEnemyPokemon()!;
+    expect(castform.formIndex).toBe(SUNNY_FORM);
+  });
 });