Add test

src/test/abilities/dancer.test.ts

@@ -0,0 +1,64 @@
+import { BattlerIndex } from "#app/battle";
+import { MovePhase } from "#app/phases/move-phase";
+import { Abilities } from "#enums/abilities";
+import { Moves } from "#enums/moves";
+import { Species } from "#enums/species";
+import GameManager from "#test/utils/gameManager";
+import Phaser from "phaser";
+import { afterEach, beforeAll, beforeEach, describe, expect, it } from "vitest";
+
+const TIMEOUT = 20 * 1000;
+
+describe("Abilities - Dancer", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+    game.override
+      .battleType("double")
+      .moveset([Moves.SWORDS_DANCE, Moves.SPLASH])
+      .enemySpecies(Species.MAGIKARP)
+      .enemyAbility(Abilities.DANCER)
+      .enemyMoveset(Array(4).fill(Moves.VICTORY_DANCE));
+  });
+
+  // Reference Link: https://bulbapedia.bulbagarden.net/wiki/Dancer_(Ability)
+
+  it("triggers when dance moves are used, doesn't consume extra PP", async () => {
+    await game.classicMode.startBattle([Species.ORICORIO, Species.FEEBAS]);
+
+    const [oricorio] = game.scene.getPlayerField();
+
+    game.move.select(Moves.SPLASH);
+    game.move.select(Moves.SWORDS_DANCE, 1);
+    await game.setTurnOrder([BattlerIndex.PLAYER_2, BattlerIndex.ENEMY, BattlerIndex.PLAYER, BattlerIndex.ENEMY_2]);
+    await game.phaseInterceptor.to("MovePhase");
+    // immediately copies ally move
+    await game.phaseInterceptor.to("MovePhase", false);
+    let currentPhase = game.scene.getCurrentPhase() as MovePhase;
+    expect(currentPhase.pokemon).toBe(oricorio);
+    expect(currentPhase.move.moveId).toBe(Moves.SWORDS_DANCE);
+    await game.phaseInterceptor.to("MoveEndPhase");
+    await game.phaseInterceptor.to("MovePhase");
+    // immediately copies enemy move
+    await game.phaseInterceptor.to("MovePhase", false);
+    currentPhase = game.scene.getCurrentPhase() as MovePhase;
+    expect(currentPhase.pokemon).toBe(oricorio);
+    expect(currentPhase.move.moveId).toBe(Moves.VICTORY_DANCE);
+    await game.phaseInterceptor.to("BerryPhase");
+
+    // doesn't use PP if copied move is also in moveset
+    expect(oricorio.moveset[0]?.ppUsed).toBe(0);
+  }, TIMEOUT);
+});