def test_sequencetools_all_are_nonnegative_integer_powers_of_two_01(): r'''True when all elements in sequence are nonnegative integer powers of two. ''' assert sequencetools.all_are_nonnegative_integer_powers_of_two([1, 2, 256, 8, 16, 16, 16])
def test_sequencetools_all_are_nonnegative_integer_powers_of_two_03(): r'''False otherwise. ''' assert not sequencetools.all_are_nonnegative_integer_powers_of_two([3]) assert not sequencetools.all_are_nonnegative_integer_powers_of_two([1, 2, 4, 8, 16, 17])
def test_sequencetools_all_are_nonnegative_integer_powers_of_two_04(): r'''False when expr is not a sequence. ''' assert not sequencetools.all_are_nonnegative_integer_powers_of_two(16)
def test_sequencetools_all_are_nonnegative_integer_powers_of_two_02(): r'''True on empty sequence. ''' assert sequencetools.all_are_nonnegative_integer_powers_of_two([])