ApaiIO\Test\Request\Rest\GuzzleRequestTest::testPerform PHP Method

    public function testPerform()
    {
        $body = $this->prophesize('\\Psr\\Http\\Message\\StreamInterface');
        $body->getContents()->shouldBeCalledTimes(1)->willReturn('ABC');
        $response = $this->prophesize('\\Psr\\Http\\Message\\ResponseInterface');
        $response->getBody()->shouldBeCalledTimes(1)->willReturn($body->reveal());
        $client = $this->prophesize('\\GuzzleHttp\\ClientInterface');
        $client->send(Argument::that(function ($request) {
            if (!$request instanceof RequestInterface) {
                return false;
            }
            $uri = $request->getUri();
            $parts = [];
            parse_str($uri->getQuery(), $parts);
            $this->assertSame('webservices.amazon.de', $uri->getHost());
            $this->assertSame('/onca/xml', $uri->getPath());
            $this->assertArrayHasKey('AWSAccessKeyId', $parts);
            $this->assertSame('jkl', $parts['AWSAccessKeyId']);
            $this->assertArrayHasKey('AssociateTag', $parts);
            $this->assertSame('def', $parts['AssociateTag']);
            $this->assertArrayHasKey('ItemId', $parts);
            $this->assertSame('1', $parts['ItemId']);
            $this->assertArrayHasKey('Test', $parts);
            $this->assertSame('a,b', $parts['Test']);
            $this->assertArrayHasKey('Operation', $parts);
            $this->assertSame('ItemLookup', $parts['Operation']);
            $this->assertArrayHasKey('Service', $parts);
            $this->assertSame('AWSECommerceService', $parts['Service']);
            $this->assertArrayHasKey('Timestamp', $parts);
            $this->assertRegExp('#[0-9]{4}(-[0-9]{2}){2}T([0-9]{2}:){2}[0-9]{2}Z#', $parts['Timestamp']);
            $this->assertArrayHasKey('Version', $parts);
            $this->assertSame('2013-08-01', $parts['Version']);
            $this->assertArrayHasKey('Signature', $parts);
            return true;
        }))->shouldBeCalledTimes(1)->willReturn($response->reveal());
        $request = new GuzzleRequest($client->reveal());
        $operation = new Lookup();
        $operation->setItemId('1');
        $operation->setTest(['a', 'b']);
        $config = new GenericConfiguration();
        $config->setAccessKey('abc');
        $config->setAssociateTag('def');
        $config->setCountry('DE');
        $config->setSecretKey('ghi');
        $config->setAccessKey('jkl');
        $request->perform($operation, $config);
    }