@Test
 public void shouldRegisterAndInvokeCompilerOfBlockWhenVisitBeginOfBlock() {
   Block block = mock(Block.class);
   when(parent.className()).thenReturn("SomeClass");
   when(parent.packageName()).thenReturn("st.redline");
   ProgramAnalyser spy = spy(analyser);
   SmalltalkEnvironment smalltalkEnvironment = mock(SmalltalkEnvironment.class);
   doReturn(smalltalkEnvironment).when(spy).smalltalkEnvironment();
   spy.visitBegin(block, 1);
   verify(smalltalkEnvironment).registerBlockToBeCompiled(block, "st.redline.SomeClass$M1");
   verify(writer).invokeObjectCompileBlock("st.redline.SomeClass$M1", 1);
 }