def test_returns_false_if_item_missing1(self): self.assertFalse(binary_search.is_present([2], 1))
def test_returns_true_if_item_present9(self): self.assertTrue(binary_search.is_present([1, 2, 3, 4], 4))
def test_returns_false_if_empty_list(self): self.assertFalse(binary_search.is_present([], 1))
def test_returns_true_if_item_present2(self): self.assertTrue(binary_search.is_present([1, 2], 1))