Interceptor tests do not correctly register Interceptor in applicationContext

[sjrd218]

When writing an Interceptor test, the first test does not actually call the before method in the interceptor at all even if you have a matchAll() in the constructor.

All subsequent tests after the first appear to work fine. It's only the first one that doesn't work. It seems that the bean isn't correctly registered in the application context and the call to: applicationContext.getBeansOfType(Interceptor).values() as Interceptor[] in the mockInterceptor method of InterceptorUnitTest returns an empty list.

I've attached a test project showing the behavior.
InterceptorTestBug.zip

[sbglasius]

I have the same issue. This can also be seen in this test project:

https://github.com/sbglasius/grailsInterceptorBugs

interceptorbug.NotCalledInterceptorSpec

[markoong]

I am somewhat surprised because this is pretty subtle and still present (Grails 4.0.1) and has taken me one full day of trials to understand why even the most simple test wouldn't call the interceptor before() logic.
A workaround is to "fake" an initial "loading" test which calls the infamous withInterceptors() method to load the needed interceptor(s).