mockClient example

$handler_stack->push($history);
    $this->mockHttpClient = new Client(['handler' => $handler_stack]);
  }

  /** * @covers ::doRequest * @covers ::fetchProjectData */
  public function testUpdateFetcherNoFallback() {
    // First, try without the HTTP fallback setting, and HTTPS mocked to fail.     $settings = new Settings([]);
    $this->mockClient(
      new Response('500', [], 'HTTPS failed'),
    );
    $update_fetcher = new UpdateFetcher($this->mockConfigFactory, $this->mockHttpClient, $settings, $this->logger);

    $data = $update_fetcher->fetchProjectData($this->testProject, '');
    // There should only be one request / response pair.     $this->assertCount(1, $this->history);
    $request = $this->history[0]['request'];
    $this->assertNotEmpty($request);
    // It should have only been an HTTPS request.     $this->assertEquals('https', $request->getUri()->getScheme());