def test_points_in_line(self):
"""
Test if constructing a plane from points forming a line raises an exception
"""
with pytest.raises(exceptions.PlaneConstructionError):
plane = polygons.Plane([[-1] * 3, [0] * 3, [1] * 3, [8] * 3,
[-3] * 3, [50] * 3, [100] * 3, [-10] * 3])
def test_to2D_to3D(self, points, point3d, point2d):
"""
Test if the conversion to 2D and back to 3D works
"""
plane = polygons.Plane(points)
p = plane.to2D(point3d)
# None as in don't care
if point2d is not None:
assert [p.x, p.y] == point2d
p = plane.to3D(p)
assert TestPlane.alike(p, point3d)
def test_valid_plane_construction(self, points, result):
"""
Test if constructing a plane from valid list of points works
"""
plane = polygons.Plane(points)
# test only the direction of normal vector and not the size
planelist = TestPlane.normalize([plane.a, plane.b, plane.c, plane.d])
result = TestPlane.normalize(result)
# test for the negative orientation as well
results = [result, list(map(operator.neg, result))]
assert planelist in results
def test_longest_recognition(self, points, longest):
"""
Test if the longest index is well recognized
"""
plane = polygons.Plane(points)
assert plane.longest == longest
def test_two_unique_points(self):
"""
Test if constructing a plane from just two unique points raises an exception
"""
with pytest.raises(exceptions.PlaneConstructionError):
plane = polygons.Plane([[0] * 3, [1] * 3] * 10)
def test_all_same_points(self):
"""
Test if constructing a plane from all points the same raises an exception
"""
with pytest.raises(exceptions.PlaneConstructionError):
plane = polygons.Plane([[0] * 3] * 20)
def test_to_few_points(self):
"""
Test if constructing a plane from two points raises an exception
"""
with pytest.raises(exceptions.PlaneConstructionError):
plane = polygons.Plane([[0, 0, 0], [1, 1, 1]])