def test_containing_pt_ct_negative_nonunity_slope(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(4, -6))
res = s1.containing_pt_ct()
self.assertEqual(res, 3)
def test_containing_pt_ct_vertical(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(0, 2))
res = s1.containing_pt_ct()
self.assertEqual(res, 3)
def test_containing_pt_ct_positive_unity_slope(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(2, 2))
res = s1.containing_pt_ct()
self.assertEqual(res, 3)
def test_containing_pt_ct_zero_length(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(0, 0))
res = s1.containing_pt_ct()
self.assertEqual(res, 1)
