GuzzleHttp\Test\Handler\StreamHandlerTest::testSupports100Continue PHP Метод

    public function testSupports100Continue()
    {
        Server::flush();
        $response = new Response(200, ['Test' => 'Hello', 'Content-Length' => '4'], 'test');
        Server::enqueue([$response]);
        $request = new Request('PUT', Server::$url, ['Expect' => '100-Continue'], 'test');
        $handler = new StreamHandler();
        $response = $handler($request, [])->wait();
        $this->assertEquals(200, $response->getStatusCode());
        $this->assertEquals('Hello', $response->getHeaderLine('Test'));
        $this->assertEquals('4', $response->getHeaderLine('Content-Length'));
        $this->assertEquals('test', (string) $response->getBody());
    }