@Test
public void
testComputeTestMethodsShouldCallGenerateExplodedTestMethodsAndCacheResultIfCalledTheFirstTime() {
// Given:
underTest.computedTestMethods = null;
doReturn(new ArrayList<FrameworkMethod>())
.when(underTest)
.generateExplodedTestMethodsFor(anyListOf(FrameworkMethod.class));
// When:
List<FrameworkMethod> result = underTest.computeTestMethods();
// Then:
assertThat(result).isEqualTo(underTest.computedTestMethods);
InOrder inOrder = inOrder(underTest);
inOrder.verify(underTest).computeTestMethods();
inOrder.verify(underTest).invokeBeforeClass();
inOrder.verify(underTest).generateExplodedTestMethodsFor(anyListOf(FrameworkMethod.class));
verifyNoMoreInteractions(underTest);
}
@Test
public void
testComputeTestMethodsShouldNotCallGenerateExplodedTestMethodsAndUseCachedResultIfCalledTheSecondTime() {
// Given:
final List<FrameworkMethod> expected = new ArrayList<FrameworkMethod>();
underTest.computedTestMethods = expected;
doReturn(expected)
.when(underTest)
.generateExplodedTestMethodsFor(anyListOf(FrameworkMethod.class));
// When:
List<FrameworkMethod> result = underTest.computeTestMethods();
// Then:
assertThat(result).isSameAs(expected);
assertThat(underTest.computedTestMethods).isSameAs(expected);
verify(underTest).computeTestMethods();
verifyNoMoreInteractions(underTest);
}