How to test Webservices with PHPUnit?

I neet to test a couple of SOAP webservices. What types of tests can I开发者_如何学Python run?

It is by far better to test the local consumer classes with mocks of the SoapClient that return pre-recorded result XML, since Unit-Tests are meant to run fast and be independant from remote services.

• Create a Mock class of your Client class (you should have an object wrapper for the SoapClient to be able to test it thoroughly)
• Use $this->returnValue() to return pre-recorded XML responses or headers that your system expects

See: http://www.phpunit.de/manual/current/en/test-doubles.html

If your system is dependant on the availability of those remote services, you could implement a watchdog service that checks if the ressource is available, but this is not something that should be done in the Unit-Tests themselves.

Kind regards, Thomas

Testing a SOAP web-service will be quite the same than testing a "local" method : you'll have to call that method, passing it some parameters, and chechink the return value, to verify that it corresponds to the parameters you gave.

Of course, with web-services, the call will be a bit more complicated, as you'll have to work with SoapClient to call the method, but the idea will still be the same.

The biggest problems I see are :

• Web services calls are slow (they go though a network), which means your tests will take time to execute -- which means you won't be able to execute them as often
• With a webservice, you potentially have more than one possible reason for failure ; which means you'll have more troubles finding out why a test failed :
  • It can fail because there is a bug -- that's the ideal case
  • But it can also fail because the remote server is down
  • Or because the network is down
  • And probably quite some other possile reasons
• Of course, as the code will be executed on a remote server, and not on the machine that runs PHPUnit, it'll be much harder to get code-coverage (for instance)

I found http://www.versioneye.com/package/fakeweb it is

FakeWeb is a helper for faking web requests in Ruby. It works at a global level, without modifying code or writing extensive stubs.