Why doesn't JUnit provide assertNotEquals methods?

Question

Does anybody know why JUnit 4 provides assertEquals(foo,bar) but not assertNotEqual(foo,bar) methods?

It provides assertNotSame

Answer 1

It's better to use the Hamcrest for negative assertions rather than assertFalse as in the former the test report will show a diff for the assertion failure.

If you use assertFalse, you just get an assertion failure in the report. i.e. lost information on cause of the failure.