public function testDownloadHtml()
 {
     $expectedResponse = 'response';
     $data = ['documents' => ['html' => 'http://example.com']];
     $mockGuzzle = Mockery::mock('\\GuzzleHttp\\Client')->shouldReceive('get')->once()->with($data['documents']['html'])->andReturn(Mockery::self())->shouldReceive('getBody')->once()->andReturn($expectedResponse)->mock();
     $response = new Response($data, $mockGuzzle);
     $this->assertEquals($expectedResponse, $response->downloadHtml());
 }