[Bug] Fix hustle not applying attack boost (#3101)

src/data/ability.ts

@@ -4356,7 +4356,7 @@ export function initAbilities() {
     new Ability(Abilities.TRUANT, 3)
       .attr(PostSummonAddBattlerTagAbAttr, BattlerTagType.TRUANT, 1, false),
     new Ability(Abilities.HUSTLE, 3)
-      .attr(BattleStatMultiplierAbAttr, BattleStat.ATK, 1.5, (user, target, move) => move.category === MoveCategory.PHYSICAL)
+      .attr(BattleStatMultiplierAbAttr, BattleStat.ATK, 1.5)
       .attr(BattleStatMultiplierAbAttr, BattleStat.ACC, 0.8, (user, target, move) => move.category === MoveCategory.PHYSICAL),
     new Ability(Abilities.CUTE_CHARM, 3)
       .attr(PostDefendContactApplyTagChanceAbAttr, 30, BattlerTagType.INFATUATED),

src/test/abilities/hustle.test.ts

@@ -0,0 +1,99 @@
+import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import Phaser from "phaser";
+import GameManager from "#app/test/utils/gameManager";
+import overrides from "#app/overrides";
+import { Species } from "#enums/species";
+import { Moves } from "#enums/moves";
+import { getMovePosition } from "#app/test/utils/gameManagerUtils";
+import { DamagePhase, MoveEffectPhase } from "#app/phases.js";
+import { Abilities } from "#app/enums/abilities.js";
+import { Stat } from "#app/enums/stat.js";
+import { allMoves } from "#app/data/move.js";
+
+describe("Abilities - Hustle", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+    vi.spyOn(overrides, "ABILITY_OVERRIDE", "get").mockReturnValue(Abilities.HUSTLE);
+    vi.spyOn(overrides, "MOVESET_OVERRIDE", "get").mockReturnValue([Moves.TACKLE, Moves.GIGA_DRAIN, Moves.FISSURE]);
+    vi.spyOn(overrides, "STARTING_LEVEL_OVERRIDE", "get").mockReturnValue(5);
+    vi.spyOn(overrides, "NEVER_CRIT_OVERRIDE", "get").mockReturnValue(true);
+    vi.spyOn(overrides, "OPP_LEVEL_OVERRIDE", "get").mockReturnValue(5);
+    vi.spyOn(overrides, "OPP_MOVESET_OVERRIDE", "get").mockReturnValue([Moves.SPLASH, Moves.SPLASH, Moves.SPLASH, Moves.SPLASH]);
+    vi.spyOn(overrides, "OPP_SPECIES_OVERRIDE", "get").mockReturnValue(Species.SHUCKLE);
+    vi.spyOn(overrides, "OPP_ABILITY_OVERRIDE", "get").mockReturnValue(Abilities.BALL_FETCH);
+  });
+
+  it("increases the user's Attack stat by 50%", async () => {
+    await game.startBattle([Species.PIKACHU]);
+    const pikachu = game.scene.getPlayerPokemon();
+    const atk = pikachu.stats[Stat.ATK];
+
+    vi.spyOn(pikachu, "getBattleStat");
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.TACKLE));
+    await game.phaseInterceptor.to(MoveEffectPhase, false);
+    vi.spyOn(game.scene.getCurrentPhase() as MoveEffectPhase, "hitCheck").mockReturnValue(true);
+    await game.phaseInterceptor.to(DamagePhase);
+
+    expect(pikachu.getBattleStat).toHaveReturnedWith(atk * 1.5);
+  });
+
+  it("lowers the accuracy of the user's physical moves by 20%", async () => {
+    await game.startBattle([Species.PIKACHU]);
+    const pikachu = game.scene.getPlayerPokemon();
+
+    vi.spyOn(pikachu, "getAccuracyMultiplier");
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.TACKLE));
+    await game.phaseInterceptor.to(MoveEffectPhase);
+
+    expect(pikachu.getAccuracyMultiplier).toHaveReturnedWith(0.8);
+  });
+
+  it("does not affect non-physical moves", async () => {
+    await game.startBattle([Species.PIKACHU]);
+    const pikachu = game.scene.getPlayerPokemon();
+    const spatk = pikachu.stats[Stat.SPATK];
+
+    vi.spyOn(pikachu, "getBattleStat");
+    vi.spyOn(pikachu, "getAccuracyMultiplier");
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.GIGA_DRAIN));
+    await game.phaseInterceptor.to(DamagePhase);
+
+    expect(pikachu.getBattleStat).toHaveReturnedWith(spatk);
+    expect(pikachu.getAccuracyMultiplier).toHaveReturnedWith(1);
+  });
+
+  // Skip until OHKO moves are fixed - it should not be affected by accuracy and evasion stats
+  it("does not affect OHKO moves", async () => {
+    vi.spyOn(overrides, "STARTING_LEVEL_OVERRIDE", "get").mockReturnValue(100);
+    vi.spyOn(overrides, "OPP_LEVEL_OVERRIDE", "get").mockReturnValue(30);
+
+    await game.startBattle([Species.PIKACHU]);
+    const pikachu = game.scene.getPlayerPokemon();
+
+    vi.spyOn(pikachu, "getAccuracyMultiplier");
+    vi.spyOn(allMoves[Moves.FISSURE], "calculateBattleAccuracy");
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.FISSURE));
+    await game.phaseInterceptor.to(DamagePhase);
+
+    expect(game.scene.getEnemyPokemon().turnData.damageTaken).toBe(game.scene.getEnemyPokemon().hp);
+    expect(pikachu.getAccuracyMultiplier).toHaveReturnedWith(1);
+    expect(allMoves[Moves.FISSURE].calculateBattleAccuracy).toHaveReturnedWith(100);
+  }, { skip: true });
+});