public function testRequestCredentialsToken()
{
$expected = array('grant_type' => 'client_credentials', 'scope' => 'user-read-email');
$headers = array('Authorization' => 'Basic Yjc3NzI5MmFmMGRlZjIyZjkyNTc5OTFmYzc3MGI1MjA6NmEwNDE5ZjQzZDBhYTkzYjJhZTg4MTQyOWI2YjliYzI=');
$return = array('body' => get_fixture('access-token'));
$stub = $this->setupStub('POST', '/api/token', $expected, $headers, $return);
$session = new SpotifyWebAPI\Session($this->clientID, $this->clientSecret, $this->redirectURI, $stub);
$result = $session->requestCredentialsToken(array('user-read-email'));
$this->assertTrue($result);
$this->assertNotEmpty($session->getAccessToken());
$this->assertEquals(time() + 3600, $session->getTokenExpiration());
}
