public function testGetChannelById()
{
$channelId = 'UCk1SpWNzOs4MYmr0uICEntg';
$response = $this->youtube->getChannelById($channelId);
$this->assertEquals('youtube#channel', $response->kind);
$this->assertEquals($channelId, $response->id);
$this->assertObjectHasAttribute('snippet', $response);
$this->assertObjectHasAttribute('contentDetails', $response);
$this->assertObjectHasAttribute('statistics', $response);
}