def test_polyline_circle_intersection(self, unit_circle):
polyline = Polyline([
Line(Vector2(0, 0), Vector2(3, 4)),
Line(Vector2(4, 5), Vector2(5, 6))
])
assert polyline.intersects(unit_circle)
assert unit_circle.intersects(polyline)
def test_polyline_polyline_no_intersection(self, polyline1):
polyline2 = Polyline([
Line(Vector2(10, 23), Vector2(23, 42)),
Line(Vector2(12, 10), Vector2(33, 44))
])
assert not polyline1.intersects(polyline2)
assert not polyline2.intersects(polyline1)
def test_setting_rotation_moves_sides_correctly(self, polyline1):
polyline1.rotation = math.pi / 2
assert polyline_eq(
polyline1,
Polyline([
Line(Vector2(0, 0), Vector2(0, -2)),
Line(Vector2(1, 0), Vector2(2, -2))
]))
def test_setting_location_moves_sides_correctly(self, polyline1):
polyline1.location = Vector2(1, 3)
assert polyline_eq(
polyline1,
Polyline([
Line(Vector2(0 + 1, 0 + 3), Vector2(2 + 1, 0 + 3)),
Line(Vector2(0 + 1, 1 + 3), Vector2(2 + 1, 2 + 3))
]))
def test_location_plus_rotation_change_endpoints_correctly(
self, polyline1):
polyline1.location = Vector2(1, 3)
polyline1.rotation = math.pi / 2
assert polyline_eq(
polyline1,
Polyline([
Line(Vector2(0 + 1, 0 + 3), Vector2(0 + 1, -2 + 3)),
Line(Vector2(1 + 1, 0 + 3), Vector2(2 + 1, -2 + 3))
]))
def test_polyline_line_no_intersection(self, polyline1):
line = Line(Vector2(10, 12), Vector2(13, 14))
assert not polyline1.intersects(line)
assert not line.intersects(polyline1)
def test_line_line_intersection(self):
line1 = Line(Vector2(-1, -1), Vector2(1, 1))
line2 = Line(Vector2(-1, 1), Vector2(1, -1))
assert line1.intersects(line2)
assert line2.intersects(line1)
def test_line_line_intersection_with_itself(self):
line1 = Line(Vector2(1, 1), Vector2(1, 2))
line2 = Line(Vector2(1, 1), Vector2(1, 2))
assert line1.intersects(line2)
assert line2.intersects(line1)
def polyline1(self):
return Polyline([
Line(Vector2(0, 0), Vector2(2, 0)),
Line(Vector2(0, 1), Vector2(2, 2))
])
def line_45_degrees(self):
return Line(Vector2(1, 2), Vector2(2, 3))
def test_polyline_polyline_intersection(self, polyline1):
polyline2 = Polyline(
[Line(Vector2(2.5 + 1, 3.5 - 1), Vector2(3 - 1, 4 + 1))])
assert polyline1.intersects(polyline2)
assert polyline2.intersects(polyline1)
def polyline1(self):
return Polyline([
Line(Vector2(2, 3), Vector2(3, 4)),
Line(Vector2(4, 5), Vector2(5, 6))
])
def test_from_points_sets_data_members_correctly(self):
polyline = Polyline.from_points(
[Vector2(0, 0), Vector2(0, 1),
Vector2(1, 3)])
assert line_eq(polyline.lines[0], Line(Vector2(0, 0), Vector2(0, 1)))
assert line_eq(polyline.lines[1], Line(Vector2(0, 1), Vector2(1, 3)))
def test_contructor_sets_data_members_correctly(self, polyline1):
assert line_eq(polyline1.lines[0], Line(Vector2(0, 0), Vector2(2, 0)))
assert line_eq(polyline1.lines[1], Line(Vector2(0, 1), Vector2(2, 2)))
def test_polyline_line_intersection(self, polyline1):
line = Line(Vector2(3, 4), Vector2(4.5, 5.5))
assert polyline1.intersects(line)
assert line.intersects(polyline1)
def test_line_circle_no_intersection(self, unit_circle):
line = Line(Vector2(1, 1), Vector2(1, 2))
assert not unit_circle.intersects(line)
assert not line.intersects(unit_circle)
def test_line_circle_intersection(self, unit_circle):
line = Line(Vector2(0, 0.8), Vector2(1, 2))
assert unit_circle.intersects(line)
assert line.intersects(unit_circle)
def line1(self):
return Line(Vector2(1, 2), Vector2(3, 1))
def test_line_line_no_intersection(self):
line1 = Line(Vector2(1, 1), Vector2(1, 2))
line2 = Line(Vector2(1 + 1, 1 + 1), Vector2(1 + 1, 2 + 1))
assert not line1.intersects(line2)
assert not line2.intersects(line1)
def test_constructor_fails_when_line_length_is_zero(self):
with pytest.raises(ValueError) as e:
Line(Vector2(12, 13), Vector2(12, 13))
assert "The Line must have a positive length" == str(e.value)
def test_contructor_sets_data_members_correctly(self, rect1):
assert line_eq(rect1.sides[0], Line(Vector2(0, 0), Vector2(0, 1)))
assert line_eq(rect1.sides[1], Line(Vector2(0, 1), Vector2(2, 1)))
assert line_eq(rect1.sides[2], Line(Vector2(2, 1), Vector2(2, 0)))
assert line_eq(rect1.sides[3], Line(Vector2(2, 0), Vector2(0, 0)))