import unittest from triangle import is_equilateral, is_isosceles, is_scalene # Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0 class is_equilateralTests(unittest.TestCase): def test_true_if_all_sides_are_equal(self): self.assertIs(is_equilateral([2, 2, 2]), True) def test_false_if_any_side_is_unequal(self): self.assertIs(is_equilateral([2, 3, 2]), False) def test_false_if_no_sides_are_equal(self): self.assertIs(is_equilateral([5, 4, 6]), False) def test_false_if_all_sides_are_zero(self): self.assertIs(is_equilateral([0, 0, 0]), False) def test_sides_may_be_floats(self): self.assertIs(is_equilateral([0.5, 0.5, 0.5]), True) class is_isoscelesTests(unittest.TestCase): def test_true_if_last_two_sides_are_equal(self): self.assertIs(is_isosceles([3, 4, 4]), True) def test_true_if_first_two_sides_are_equal(self): self.assertIs(is_isosceles([4, 4, 3]), True) def test_true_if_first_and_last_sides_are_equal(self): self.assertIs(is_isosceles([4, 3, 4]), True) def test_is_equilateral_triangles_are_also_is_isosceles(self): self.assertIs(is_isosceles([4, 4, 4]), True) def test_false_if_no_sides_are_equal(self): self.assertIs(is_isosceles([2, 3, 4]), False) def test_violation_of_triangle_inequality_not_is_isosceles(self): self.assertIs(is_isosceles([1, 1, 3]), False) def test_sides_may_be_floats(self): self.assertIs(is_isosceles([0.5, 0.4, 0.5]), True) class is_scaleneTests(unittest.TestCase): def test_true_if_no_sides_are_equal(self): self.assertIs(is_scalene([5, 4, 6]), True) def test_false_if_all_sides_are_equal(self): self.assertIs(is_scalene([4, 4, 4]), False) def test_false_if_two_sides_are_equal(self): self.assertIs(is_scalene([4, 4, 3]), False) def test_violation_of_triangle_inequality_not_is_scalene(self): self.assertIs(is_scalene([7, 3, 2]), False) def test_sides_may_be_floats(self): self.assertIs(is_scalene([0.5, 0.4, 0.6]), True) if __name__ == '__main__': unittest.main()