Goutte\Tests\ClientTest::testCustomUserAgent PHP Method

    public function testCustomUserAgent()
    {
        $guzzle = $this->getGuzzle();
        $client = new Client();
        $client->setClient($guzzle);
        $client->setHeader('User-Agent', 'foo');
        $client->request('GET', 'http://www.example.com/');
        $this->assertEquals('foo', end($this->history)['request']->getHeaderLine('User-Agent'));
    }