function testInvalidateCookies()
{
$this->childResponse->addCookie('foo', 'bar');
$this->childResponse->addCookie('bar', 'foo');
$expected = array('foo' => array('value' => 'bar', 'expireDate' => null), 'bar' => array('value' => 'foo', 'expireDate' => null));
$cookies = $this->childResponse->getCookies();
$this->assertEquals($expected, $cookies);
$this->childResponse->invalidateCookies(array('foo', 'bar'));
$expected = array('foo' => array('value' => 'expired', 'expireDate' => new \DateTime('1971-01-01')), 'bar' => array('value' => 'expired', 'expireDate' => new \DateTime('1971-01-01')));
$cookies = $this->childResponse->getCookies();
$this->assertEquals($expected, $cookies);
}