pokemon-showdown/test/sim/abilities/parentalbond.js

'use strict';

const assert = require('./../../assert');
const common = require('./../../common');

let battle;
let damages;

describe('Parental Bond', function () {
	beforeEach(function () {
		battle = common.createBattle([
			[{species: 'Kangaskhan', ability: 'parentalbond', item: 'electriumz', moves: ['thunderpunch', 'doublekick']}],
			[{species: 'Aggron', ability: 'battlearmor', moves: ['rest']}],
		]);

		damages = [];
		battle.onEvent('ModifyDamage', battle.format, -9, function (damage, attacker, defender, move) {
			damages.push(damage);
		});
	});

	afterEach(function () {
		battle.destroy();
	});

	it('should cause single-hit attacks to strike twice, with the second hit dealing 0.25x damage', function () {
		battle.makeChoices('move thunderpunch', 'move rest');
		const damageRatio = damages[0] / damages[1];
		assert.bounded(damageRatio, [(0.85 / 0.25 - 0.1), (1 / (0.85 * 0.25) + 0.1)]);
	});

	it('should not have any effect on moves with multiple hits', function () {
		battle.makeChoices('move doublekick', 'move rest');
		assert.bounded(damages[0], [54, 64]);
		assert.bounded(damages[1], [54, 64]);
	});

	it('should not have any effect Z-Moves', function () {
		battle.makeChoices('move thunderpunch zmove', 'move rest');
		assert.equal(damages.length, 1);
		assert.bounded(damages[0], [61, 72]);
	});
});

describe('Parental Bond [Gen 6]', function () {
	beforeEach(function () {
		battle = common.gen(6).createBattle([
			[{species: 'Kangaskhan', ability: 'parentalbond', moves: ['thunderpunch', 'doublekick']}],
			[{species: 'Aggron', ability: 'battlearmor', moves: ['rest']}],
		]);

		damages = [];
		battle.onEvent('ModifyDamage', battle.format, -9, function (damage, attacker, defender, move) {
			damages.push(damage);
		});
	});

	afterEach(function () {
		battle.destroy();
	});

	it('should cause single-hit attacks to strike twice, with the second hit dealing 0.5x damage', function () {
		battle.makeChoices('move thunderpunch', 'move rest');
		const damageRatio = damages[0] / damages[1];
		assert.bounded(damageRatio, [(0.85 / 0.5 - 0.1), (1 / (0.85 * 0.5) + 0.1)]);
	});

	it('should not have any effect on moves with multiple hits', function () {
		battle.makeChoices('move doublekick', 'move rest');
		assert.bounded(damages[0], [54, 64]);
		assert.bounded(damages[1], [54, 64]);
	});
});