### Question:
AppcControllerBB extends LcmControllerBB { @Override public Boolean understand(ControllerContext<BuildingBlockExecution> context) { return context.getControllerActor().equalsIgnoreCase("appc"); }  @Override Boolean understand(ControllerContext<BuildingBlockExecution> context); @Override Boolean ready(ControllerContext<BuildingBlockExecution> context);  }### Answer:
@Test public void testUnderstand_validContext_TrueReturned() { assertTrue(appcControllerBB.understand(controllerContext)); }
@Test public void testUnderstand_invalidContext_FalseReturned() { when(controllerContext.getControllerActor()).thenReturn("sdnc"); assertFalse(appcControllerBB.understand(controllerContext)); }