def test_revert_commit(self):
        self.git_commit('Test commit')
        self.git_commit('Revert "Test commit"\n\n'
                        'This reverts commit <sha>\n')

        self.assertEqual(self.run_uut(),
                         ['Revert commit does not have a reason.'])
        self.assert_no_msgs()

        self.assertEqual(self.run_uut(allow_revert_commits=True),
                         [])
        self.assert_no_msgs()

        self.git_commit('Test commit')
        self.git_commit('Revert "New Test commit"\n\n'
                        'This reverts commit <sha>\n\n'
                        'Reason for the revert commit is explained here.\n')

        self.assertEqual(self.run_uut(),
                         ['Shortlog of revert commit does not match the original commit.'])
        self.assert_no_msgs()

        self.git_commit('Test commit')
        self.git_commit('Revert "Test commit"\n\n'
                        'This reverts commit <sha1>\n\n'
                        'This revert commit has wrong commit hash.\n')

        self.assertEqual(self.run_uut(),
                         ['Invalid revert commit.'])
        self.assert_no_msgs()

        self.git_commit('Test commit')
        self.git_commit('Revert "Test commit"\n\n'
                        'This reverts commit <sha>\n\n'
                        'Reason for the revert commit is explained here'
                        'This reason is too long'
                        'Reason for the revert commit must not exceed 50 characters\n')

        self.assertEqual(self.run_uut(),
                         ['Reason of revert is too long.'])
        self.assert_no_msgs()

        self.git_commit('Test commit')
        self.git_commit('Revert "Test commit"\n\n'
                        'This reverts commit <sha>\n\n'
                        'Reason for the revert commit is explained here.\n')

        self.assertEqual(self.run_uut(), [])
        self.assert_no_msgs()