@Test public void commitTreeShouldBeGreaterThanWorkingTree() {
// given
Viewer viewer = mock(Viewer.class);
GitChangeSetSorter sorter = new GitChangeSetSorter();
GitModelCommit commit = mock(GitModelCommit.class);
GitModelWorkingTree workingTree = mock(GitModelWorkingTree.class);
// when
int actual = sorter.compare(viewer, commit, workingTree);
// then