Testing for cakeError() being thrown

I am using Unit Testing in CakePHP 1.3. My app uses a very simple ErrorHandler as taught by the book. One of my models calls $this->cakeError('myError') if something is wrong.

Now I want a test case for my model, that checks if - wrong data given - the error handler is properly called.

SimpleTest of开发者_如何学JAVAfers expectError() but this seems to be made for standard PHP errors. CakePHP's error handling is a different thing, though, these errors are not caught by expectError(). If cakeError() is called in a test, the error message is rendered, rather than the test results.

How can I test for expected cakeErrors?

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You could probably use a partial mock and mock the cakeError method. Then you can use expectOnce to assert the cakeError method is called. See the documentation for an example and further explanations.