GuzzleHttp\Tests\MessageFormatterTest::formatProvider PHP Method

    public function formatProvider()
    {
        $request = new Request('PUT', '/', ['x-test' => 'abc'], Psr7\stream_for('foo'));
        $response = new Response(200, ['X-Baz' => 'Bar'], Psr7\stream_for('baz'));
        $err = new RequestException('Test', $request, $response);
        return [['{request}', [$request], Psr7\str($request)], ['{response}', [$request, $response], Psr7\str($response)], ['{request} {response}', [$request, $response], Psr7\str($request) . ' ' . Psr7\str($response)], ['{request} {response}', [$request], Psr7\str($request) . ' '], ['{req_headers}', [$request], "PUT / HTTP/1.1\r\nx-test: abc"], ['{res_headers}', [$request, $response], "HTTP/1.1 200 OK\r\nX-Baz: Bar"], ['{res_headers}', [$request], 'NULL'], ['{req_body}', [$request], 'foo'], ['{res_body}', [$request, $response], 'baz'], ['{res_body}', [$request], 'NULL'], ['{method}', [$request], $request->getMethod()], ['{url}', [$request], $request->getUri()], ['{target}', [$request], $request->getRequestTarget()], ['{req_version}', [$request], $request->getProtocolVersion()], ['{res_version}', [$request, $response], $response->getProtocolVersion()], ['{res_version}', [$request], 'NULL'], ['{host}', [$request], $request->getHeaderLine('Host')], ['{hostname}', [$request, $response], gethostname()], ['{hostname}{hostname}', [$request, $response], gethostname() . gethostname()], ['{code}', [$request, $response], $response->getStatusCode()], ['{code}', [$request], 'NULL'], ['{phrase}', [$request, $response], $response->getReasonPhrase()], ['{phrase}', [$request], 'NULL'], ['{error}', [$request, $response, $err], 'Test'], ['{error}', [$request], 'NULL'], ['{req_header_x-test}', [$request], 'abc'], ['{req_header_x-not}', [$request], ''], ['{res_header_X-Baz}', [$request, $response], 'Bar'], ['{res_header_x-not}', [$request, $response], ''], ['{res_header_X-Baz}', [$request], 'NULL']];
    }