def METHOD_NAME():
    '''Test the all_write_accesses() method.'''
    all_write_accesses = AccessType.all_write_accesses()
    assert isinstance(all_write_accesses, list)
    assert len(all_write_accesses) == 5
    assert (len(all_write_accesses) ==
            len(set(all_write_accesses)))
    assert all(isinstance(write_access, AccessType)
               for write_access in all_write_accesses)