Google\Cloud\BigQuery\Connection\Rest::insertJobUpload PHP Method

    public function insertJobUpload(array $args = [])
    {
        $args = $this->resolveUploadOptions($args);
        return new MultipartUploader($this->requestWrapper, $args['data'], $this->expandUri(self::UPLOAD_URI, ['projectId' => $args['projectId']]), $args['uploaderOptions']);
    }

 public function testInsertJobUpload()
 {
     $actualRequest = null;
     $config = ['configuration' => ['load' => ['destinationTable' => ['tableId' => 'myTableId', 'datasetId' => 'myDatasetId', 'projectId' => 'myProjectId']]]];
     $options = ['data' => 'justSomeData', 'projectId' => 'myProjectId'] + $config;
     $response = new Response(200, [], json_encode(['jobReference' => ['jobId' => 'myJobId']]));
     $this->requestWrapper->send(Argument::type('Psr\\Http\\Message\\RequestInterface'), Argument::type('array'))->will(function ($args) use(&$actualRequest, $response) {
         $request = $args[0];
         if ($request->getMethod() === 'POST') {
             $actualRequest = $request;
         }
         return $response;
     })->shouldBeCalledTimes(1);
     $rest = new Rest();
     $rest->setRequestWrapper($this->requestWrapper->reveal());
     $uploader = $rest->insertJobUpload($options);
     $uploader->upload();
     $metadata = $this->getMetadata($actualRequest);
     $this->assertEquals($config, $metadata);
     $this->assertInstanceOf(AbstractUploader::class, $uploader);
 }