How to write a PHPUnit test for a SOAP server? - testing

Question

UPD. Sorry, guys.
I have an application that acts as a SOAP server, how do I write a PHPUnit test to test it?

Answer 1

SOAP extension is reading data from PHP input stream. You just provide your own data there and create some integration/unit tests for your API.
Take a look at the signature of SoapServer::handle() method. It takes as an argument a string which is a request itself. This parameter is optional and if you don't pass anything in, PHP will just read the data itself. But you can simply override it.
I used streams to do it. First you wrap the SoapServer with your own class like this:
class MyServer
{
/** \SoapServer */
private $soapServer;
public function __construct(\SoapServer $soapServer)
{
$this->soapServer = $soapServer;
}
public function handle(Psr\Http\Message\StreamInterface $inputStream): void
{
$this->soapServer->handle($inputStream->getContent());
}
}
Now you are ready to mock the request.
In your test you can do:
class MyTest extends TestCase
{
public function testMyRequest(): void
{
$mySoapServer = $this->createMySoapServer();
$request = $this->createRequest();
$mySoapServer->handle($request);
}
private function createRequest(): StreamInterface
{
$requestString = '<soap:Envelope></soap:Envelope>';
$fh = fopen('php://temp', 'rw');
fwrite($fh, $requestString);
fseek($fh, SEEK_SET);
return new Psr\Http\Message\StreamInterface\Stream($fh);
}
private function createMySoapServer(): MyServer
{
return new MyServer(new \SoapServer());
}
}
One thing to keep in mind - this test will generate output. You may want to test this output or ignore it. Depends on your use case.
Another side note. What you are asking for has really nothing to do with PHPUnit. It just a matter of designing your SOAP server correctly.
If you are wondering how to set up the stream when you have a live request, this is really simple:
$server->handle(new Psr\Http\Message\StreamInterface\Stream(fopen('php://input', 'r+')));