Unit tests done. Then what? Integration test howto?

[jmut]

Hi devs,
Lets asume each unit (class or whatever standalone piece) is tested and working. How do you guys test those units working together. What tools are you using. Only think I am aware of right now is that I can use simpletest to test frontend, hence somehow testing units working together. What else might you recommend? Do you use unit testing frameworks (phpunit,simpletest etc) for integration testing?

[McGruff]

The SimpleTest web tester is very good.

However I'd recommend always starting with a web test and then working your way down from their. Have you tried test-driven design?

[jmut]

I know all theory behind it but never really able to do in real project. Some day..oh some day I will

[Jenk]

Think of each behaviour, and write a test/spec for that. If $ObjectA->returnValue() should return an instance of ObjectB, write a test/spec for that. This is the simplest form of an Integration test.

[jmut]

Yeah, my question was more like are there special libs for integration tests or you use phpunit for example again to test behaviour...like interaction of 3-5 objects.

[Jenk]

Fitnesse if there is a version for PHP. If not, just use SimpleTest, PHPSpec or PHPUnit.