public function testShouldReturnTokenInfo()
{
$wantedTokens = ['access_token' => '1/abdef1234567890', 'expires_in' => '57', 'token_type' => 'Bearer'];
$jsonTokens = json_encode($wantedTokens);
$httpHandler = getHandler([buildResponse(200, [GCECredentials::FLAVOR_HEADER => 'Google']), buildResponse(200, [], Psr7\stream_for($jsonTokens))]);
$g = new GCECredentials();
$this->assertEquals($wantedTokens, $g->fetchAuthToken($httpHandler));
}
