PayPal\Test\Auth\OAuthTokenCredentialTest::testGetAccessTokenUnit PHP Method

    public function testGetAccessTokenUnit()
    {
        $config = array('mode' => 'sandbox', 'cache.enabled' => true, 'cache.FileName' => AuthorizationCacheTest::CACHE_FILE);
        $cred = new OAuthTokenCredential('clientId', 'clientSecret');
        //{"clientId":{"clientId":"clientId","accessToken":"accessToken","tokenCreateTime":1421204091,"tokenExpiresIn":288000000}}
        AuthorizationCache::push($config, 'clientId', $cred->encrypt('accessToken'), 1421204091, 288000000);
        $apiContext = new ApiContext($cred);
        $apiContext->setConfig($config);
        $this->assertEquals('clientId', $cred->getClientId());
        $this->assertEquals('clientSecret', $cred->getClientSecret());
        $result = $cred->getAccessToken($config);
        $this->assertNotNull($result);
    }