def test_x_y_intercept_90_degrees_5_inf(self):
line = LineModel(1, 0, -5)
xintercept_actual = line.xintercept()
xintercept_expected = 5
yintercept_actual = line.yintercept()
yintercept_expected = math.inf
self.assertEqual(xintercept_actual, xintercept_expected)
self.assertEqual(yintercept_actual, yintercept_expected)
def test_x_y_intercept_0_degrees_inf_5(self):
line = LineModel(0, 1, -5)
xintercept_actual = line.xintercept()
xintercept_expected = math.inf
yintercept_actual = line.yintercept()
yintercept_expected = 5
self.assertEqual(xintercept_actual, xintercept_expected)
self.assertEqual(yintercept_actual, yintercept_expected)
def test_x_y_intercept_45_degrees_1_0(self):
line = LineModel(-1, 1, 1)
xintercept_actual = line.xintercept()
xintercept_expected = 1
yintercept_actual = line.yintercept()
yintercept_expected = -1
self.assertEqual(xintercept_actual, xintercept_expected)
self.assertEqual(yintercept_actual, yintercept_expected)