Respect\Validation\Rules\KeySetTest::testShouldReturnKeys PHP Метод

    public function testShouldReturnKeys()
    {
        $key1 = new Key('foo', new AlwaysValid(), true);
        $key2 = new Key('bar', new AlwaysValid(), false);
        $keySet = new KeySet($key1, $key2);
        $this->assertEquals(['foo', 'bar'], $keySet->getKeys());
    }