How to test public method of Service class not belonging to the interface

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1

The method public void triggerStateConversion(Patient patient, Concept trigger, Date dateConverted) in class org.openmrs.api.ProgramWorkflowService is a more complex method. Unfortunately it cannot be tested as a BaseContextSensitiveTest since the method does not belong to the interface of the ProgramWorkflowService.

Is it sufficient and ok to test in the …ServiceUnitTest using mocking?

2

What is wrong with testing it as a BaseContextSensitiveTest?

3

It’s just not visible and casting the instance of ProgramWorkflowService returned by Context.getProgramWorkflowService() to ProgramWorkflowServiceImpl does not work. The compiler accepts casting but running the tests results in:

java.lang.ClassCastException: com.sun.proxy.$Proxy121 cannot be cast to org.openmrs.api.impl.ProgramWorkflowServiceImpl
	at org.openmrs.api.ProgramWorkflowServiceTest.runBeforeEachTest(ProgramWorkflowServiceTest.java:73)
4

Its very possible to test every class make it public or private, protected, Testing openmrs classes and interface , you need to be having idea of expressional testing.