Mocking Java final classes

 Coding  No Responses »
Jul 312012
 

Trying to unit test some code that was to run inside Solr, I bumped into this:

Cannot mock/spy class org.apache.solr.core.SolrCore
Mockito cannot mock/spy following:
  - final classes
  - anonymous classes
  - primitive types

Fortunately, there’s a simple solution: PowerMock. After adding the following two annotations to my test class definition (and the requisite Maven dependency declarations), everything just worked. No changes needed to the actual Mockito calls themselves. Sweet.

@RunWith(PowerMockRunner.class)
@PrepareForTest( { SolrCore.class })