public function testGetAccessTokenRefreshTokenGrant()
{
$config = $this->getConfig();
$oauth2Client = new OAuth2Client($config);
$accessTokenExpectedResponse = new AccessTokenSuccessfulResponse(new AccessToken('2YotnFZFEjr1zCsicMWpAA'), TokenType::BEARER());
$accessTokenExpectedResponse->setExpiresIn(new ExpiresIn(3600));
$accessTokenExpectedResponse->setRefreshToken(new RefreshToken('dD3BGS4cfASc3CFS23caxcs'));
$accessTokenRequest = new AccessTokenRequest(new RefreshToken('tGzv3JOkF0XG5Qx2TlKWIA'));
$grant = new RefreshTokenGrant($accessTokenRequest);
$accessTokenResponse = $oauth2Client->obtainAccessToken($grant);
$this->assertEquals($accessTokenExpectedResponse, $accessTokenResponse);
}
