def test_instanciation():
"""Check Angle's instanciation."""
pointO = Point(0, 0, 'O')
pointI = Point(1, 0, 'I')
pointJ = Point(0, 1, 'J')
pointA = Point(1, 1, 'A')
theta = Angle(pointI, pointO, pointJ, mark_right=True)
assert repr(theta) == 'Angle(I, O, J)'
assert theta.measure == Number('90')
assert isinstance(theta.decoration, AngleDecoration)
assert theta.decoration.label is None
assert theta.decoration.variety is None
assert theta.mark_right
assert theta.vertex == pointO
assert theta.points == [pointI, pointO, pointJ]
theta = Angle(pointA, pointO, pointI, decoration=AngleDecoration())
assert theta.measure == Number('315')
assert Angle(pointI, pointO, pointA).measure == Number('45')
assert not theta.mark_right
assert theta.vertex == pointO
assert theta.points == [pointA, pointO, pointI]
theta = Angle(pointI, pointO, 60)
assert theta.vertex == pointO
assert theta.points[2] == Point('0.5', '0.866', 'I\'')
A = Point(0, 0, 'A')
X = Point(6, 1, 'X')
Y = Point(3, 5, 'Y')
α = Angle(X, A, Y)
assert α.winding == 'anticlockwise'
assert α.arms[0] == Bipoint(A, X)
assert α.arms[1] == Bipoint(A, Y)
def test_addition_3D():
"""Check Bipoints' additions."""
pointO = Point(0, 0, 0, 'O')
pointI = Point(1, 0, 0, 'I')
pointJ = Point(0, 1, 1, 'J')
pointA = Point(1, 1, 1, 'A')
i = Bipoint(pointO, pointI)
j = Bipoint(pointO, pointJ)
assert i + j == Bipoint(pointO, pointA)
def test_instanciation_from_point_and_vector_2D():
"""Check Bipoints' instanciation."""
A = Point(0, 0, 'A')
v = Vector(1, 1)
assert Bipoint(A, v) == Bipoint(Point(0, 0), Point(1, 1))
A = Point(0, 0, 'A')
v = Vector(1, 1, 0)
assert Bipoint(A, v).three_dimensional
assert Bipoint(A, v) == Bipoint(Point(0, 0, 0), Point(1, 1, 0))
def test_dividing_points_2D():
"""Check Bipoint.dividing_points() in 2D."""
pointO = Point(0, 0, 'O')
pointI = Point(1, 0, 'I')
i = Bipoint(pointO, pointI)
assert i.dividing_points(4) == [
Point(0.25, 0), Point(0.5, 0),
Point(0.75, 0)
]
def test_equality():
"""Check __eq__() is correct."""
A = Point(0, 0, 'A')
B = Point(1, 1, 'B')
s = Bipoint(A, B)
t = Bipoint(B, A)
u = Bipoint(B, A)
assert s != t
assert t == u
assert not (t == A)
def test_addition_2D():
"""Check Bipoints' additions."""
pointO = Point(0, 0, 'O')
pointI = Point(1, 0, 'I')
pointJ = Point(0, 1, 'J')
pointA = Point(1, 1, 'A')
with pytest.raises(TypeError) as excinfo:
Bipoint(pointO, pointI) + 'a'
assert str(excinfo.value) == 'Can only add a Bipoint to another '\
'Bipoint. Found \'a\' instead.'
i = Bipoint(pointO, pointI)
j = Bipoint(pointO, pointJ)
assert i + j == Bipoint(pointO, pointA)
assert i.add(j) == Bipoint(pointO, pointA)
def test_midpoint_3D():
"""Check Bipoint.midpoint() in 3D."""
pointO = Point(0, 0, 0, 'O')
pointI = Point(1, 0, 1, 'I')
i = Bipoint(pointO, pointI)
assert i.midpoint() == Point(0.5, 0, 0.5)
def test_repr():
"""Check Bipoint.__repr__()"""
A = Point(0, 0, 'A')
B = Point(1, 1, 'B')
assert repr(Bipoint(A, B)) == 'Bipoint(Point A(0, 0), Point B(1, 1))'
def test_coordinates():
"""Check Bipoints' coordinates."""
A = Point(0, 0, 'A')
B = Point(1, 1, 'B')
assert Bipoint(A, B).coordinates == (1, 1, 0)
def test_point_at_2D():
"""Check Bipoint.point_at() in 2D."""
pointO = Point(0, 0, 'O')
pointI = Point(1, 0, 'I')
i = Bipoint(pointO, pointI)
assert i.point_at(0.5) == Point(0.5, 0)