GuzzleHttp\Tests\ClientTest::testCanSetContentDecodingToValue PHP Method

    public function testCanSetContentDecodingToValue()
    {
        $mock = new MockHandler([new Response()]);
        $client = new Client(['handler' => $mock]);
        $client->get('http://foo.com', ['decode_content' => 'gzip']);
        $last = $mock->getLastRequest();
        $this->assertEquals('gzip', $last->getHeaderLine('Accept-Encoding'));
        $this->assertEquals('gzip', $mock->getLastOptions()['decode_content']);
    }