/**
  * {@inheritdoc}
  */
 public function deleteDir($dirname)
 {
     return $this->client->delete($dirname);
 }
 public function testDeleteWithUnsuccessfulResponse()
 {
     $client = $this->getMockBuilder('\\GuzzleHttp\\Client')->getMock();
     $accessToken = '123456789';
     $response = new Response(400);
     $client->expects($this->once())->method('send')->willReturn($response);
     $oneDriveClient = new OneDriveClient($accessToken, $client);
     $result = $oneDriveClient->delete('documents/pictures/some picture.jpg');
     $this->assertSame(false, $result);
 }