def test_doesnt_intersect_triangle_common_side(self):
p1 = IntegerPoint(0, 0)
p2 = IntegerPoint(2, 1)
p3 = IntegerPoint(1, 2)
t1 = IntegerTriangle(p1, p2, p3)
s1 = IntegerSegment((-2, -1), (4, 2))
self.assertFalse(s1.intersects_triangle(t1))
def test_intersects_triangle(self):
p1 = IntegerPoint(0, 0)
p2 = IntegerPoint(2, 1)
p3 = IntegerPoint(1, 2)
t1 = IntegerTriangle(p1, p2, p3)
s1 = IntegerSegment((0, 1), (3, 1))
self.assertTrue(s1.intersects_triangle(t1))
def test_like_reversed_points(self):
p1 = IntegerPoint(0, 1)
p2 = IntegerPoint(1, 1)
s1 = IntegerSegment(p1, p2)
p3 = IntegerPoint(0, 1)
p4 = IntegerPoint(1, 1)
s2 = IntegerSegment(p4, p3)
self.assertTrue(s1.like(s2))
self.assertTrue(s2.like(s1))
def test_like_same_points(self):
p1 = IntegerPoint(0, 1)
p2 = IntegerPoint(1, 1)
s1 = IntegerSegment(p1, p2)
p3 = IntegerPoint(0, 1)
p4 = IntegerPoint(1, 1)
s2 = IntegerSegment(p3, p4)
self.assertTrue(s1.like(s2))
self.assertTrue(s2.like(s1))
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_zero_length(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(0, 0))
res = s1.containing_pt_ct()
self.assertEqual(res, 1)
def test_tuple(self):
p1 = IntegerPoint(0, 1)
p2 = IntegerPoint(1, 1)
res = IntegerSegment(p1, p2)
self.assertTupleEqual(res.tuple(), (p1.tuple(), p2.tuple()))
def test_creation_from_tuple(self):
s1 = IntegerSegment((0, 0), (2, 0))
self.assertTupleEqual(s1.tuple(), ((0, 0), (2, 0)))
def test_ortho_vertical(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(0, 3))
self.assertTrue(s1.ortho())
def test_ortho_horiz(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(3, 0))
self.assertTrue(s1.ortho())
def test_length(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(3, 2))
self.assertEqual(s1.length(), sqrt(3 ** 2 + 2 ** 2))
def test_slope_negative(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(2, -1))
self.assertEqual(s1.slope(), -0.5)
def test_slope_positive(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(2, 1))
self.assertEqual(s1.slope(), 0.5)
def test_slope_zero(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(1, 0))
self.assertEqual(s1.slope(), 0)
def test_slope_inf(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(0, 1))
self.assertEqual(s1.slope(), float("inf"))
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_negative_nonunity_slope(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(4, -6))
res = s1.containing_pt_ct()
self.assertEqual(res, 3)
def test_not_ortho(self):
s1 = IntegerSegment(IntegerPoint(0, 0), IntegerPoint(3, 2))
self.assertFalse(s1.ortho())
def test_points(self):
p1 = IntegerPoint(0, 1)
p2 = IntegerPoint(1, 1)
res = IntegerSegment(p1, p2)
self.assertTupleEqual(res.vertices(), (p1, p2))
def test_default_initialization(self):
s1 = IntegerSegment()
self.assertTupleEqual(s1.tuple(), ((0, 0), (0, 0)))
