pokerogue/test/abilities/healer.test.ts

import { PostTurnResetStatusAbAttr } from "#abilities/ability";
import { allAbilities } from "#data/data-lists";
import { AbilityId } from "#enums/ability-id";
import { MoveId } from "#enums/move-id";
import { SpeciesId } from "#enums/species-id";
import { StatusEffect } from "#enums/status-effect";
import type { Pokemon } from "#field/pokemon";
import { GameManager } from "#test/test-utils/game-manager";
import { isNullOrUndefined } from "#utils/common";
import Phaser from "phaser";
import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";

describe("Abilities - Healer", () => {
  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
      .moveset([MoveId.SPLASH])
      .ability(AbilityId.BALL_FETCH)
      .battleStyle("double")
      .criticalHits(false)
      .enemySpecies(SpeciesId.MAGIKARP)
      .enemyAbility(AbilityId.BALL_FETCH)
      .enemyMoveset(MoveId.SPLASH);

    // Mock healer to have a 100% chance of healing its ally
    vi.spyOn(allAbilities[AbilityId.HEALER].getAttrs("PostTurnResetStatusAbAttr")[0], "getCondition").mockReturnValue(
      (pokemon: Pokemon) => !isNullOrUndefined(pokemon.getAlly()),
    );
  });

  it("should not queue a message phase for healing if the ally has fainted", async () => {
    const abSpy = vi.spyOn(PostTurnResetStatusAbAttr.prototype, "canApply");
    game.override.moveset([MoveId.SPLASH, MoveId.LUNAR_DANCE]);
    await game.classicMode.startBattle([SpeciesId.MAGIKARP, SpeciesId.MAGIKARP]);

    const user = game.scene.getPlayerPokemon()!;
    // Only want one magikarp to have the ability
    vi.spyOn(user, "getAbility").mockReturnValue(allAbilities[AbilityId.HEALER]);
    game.move.select(MoveId.SPLASH);
    // faint the ally
    game.move.select(MoveId.LUNAR_DANCE, 1);
    await game.phaseInterceptor.to("TurnEndPhase");

    // It's not enough to just test that the ally still has its status.
    // We need to ensure that the ability failed to meet its condition
    expect(abSpy).toHaveReturnedWith(false);
  });

  it("should heal the status of an ally if the ally has a status", async () => {
    await game.classicMode.startBattle([SpeciesId.MAGIKARP, SpeciesId.MAGIKARP]);
    const [user, ally] = game.scene.getPlayerField();
    // Only want one magikarp to have the ability.
    vi.spyOn(user, "getAbility").mockReturnValue(allAbilities[AbilityId.HEALER]);
    expect(ally.trySetStatus(StatusEffect.BURN)).toBe(true);
    game.move.select(MoveId.SPLASH);
    game.move.select(MoveId.SPLASH, 1);

    await game.phaseInterceptor.to("TurnEndPhase");
    await game.toNextTurn();

    expect(ally.status?.effect, "status effect was not healed").toBeFalsy();
  });

  // TODO: Healer is currently checked before the
  it.todo("should heal a burn before its end of turn damage", async () => {
    await game.classicMode.startBattle([SpeciesId.MAGIKARP, SpeciesId.MAGIKARP]);
    const [user, ally] = game.scene.getPlayerField();
    // Only want one magikarp to have the ability.
    vi.spyOn(user, "getAbility").mockReturnValue(allAbilities[AbilityId.HEALER]);
    expect(ally.trySetStatus(StatusEffect.BURN)).toBe(true);
    game.move.select(MoveId.SPLASH);
    game.move.select(MoveId.SPLASH, 1);
    await game.phaseInterceptor.to("TurnEndPhase");
    await game.toNextTurn();

    expect(ally.status?.effect, "status effect was not healed").toBeFalsy();
    expect(ally.hp).toBe(ally.getMaxHp());
  });
});