def test_equals(self): self.assertEqual(binary_piramid(1, 4), '1111010')
def test_equals_3(self): self.assertEqual(binary_piramid(6, 20), '1110010110100011')
def test_equals_4(self): self.assertEqual(binary_piramid(21, 60), '1100000100010001010100')
def test_equals_2(self): self.assertEqual(binary_piramid(1, 6), '101001101')