import pytest
from pandemonium import Basis, Quaternion, Vector3
def test_base():
v = Quaternion()
assert type(v) == Quaternion
@pytest.mark.parametrize(
"field,args",
[
["from_axis_angle", (Vector3.ONE, 1.1)],
["from_euler", (Vector3.ONE,)],
["from_basis", (Basis(),)],
],
)
def test_inits(field, args):
build = getattr(Quaternion, field)
v = build(*args)
assert isinstance(v, Quaternion)
@pytest.mark.parametrize(
"field,args",
[
["from_axis_angle", (None, 1.1)],
["from_euler", (None,)],
["from_basis", (None,)],
["from_axis_angle", (Vector3.ONE, None)],
["from_axis_angle", (Vector3.ONE, "dummy")],
["from_axis_angle", ("dummy", 1.1)],
["from_euler", ("dummy",)],
["from_basis", ("dummy",)],
],
)
def test_bad_inits(field, args):
build = getattr(Quaternion, field)
with pytest.raises(TypeError):
v = build(*args)
def test_repr():
v = Quaternion(1.0, 2.0, 3.0, 4.0)
assert repr(v) == "<Quaternion(x=1.0, y=2.0, z=3.0, w=4.0)>"
@pytest.mark.parametrize(
"args",
[
[(), 0, 0, 0, 0],
[(0.1, 0.2, 0.3, 0.4), 0.1, 0.2, 0.3, 0.4],
[(1, 2, 3), 1, 2, 3, 0],
[(1,), 1, 0, 0, 0],
],
)
def test_instantiate(args):
# Can build it with int or float or nothing
msg_tmpl = "%s vs (expected) %s (args=%s)"
args, expected_x, expected_y, expected_z, expected_w = args
v = Quaternion(*args)
assert pytest.approx(v.x) == expected_x, msg_tmpl % (v.x, expected_x, args)
assert pytest.approx(v.y) == expected_y, msg_tmpl % (v.y, expected_y, args)
assert pytest.approx(v.z) == expected_z, msg_tmpl % (v.z, expected_z, args)
assert pytest.approx(v.w) == expected_w, msg_tmpl % (v.w, expected_w, args)
def test_bad_instantiate():
with pytest.raises(TypeError):
Quaternion("a", 2, 3, 4)
with pytest.raises(TypeError):
Quaternion(1, "b", 2, 4)
with pytest.raises(TypeError):
Quaternion(1, 2, "c", 4)
with pytest.raises(TypeError):
Quaternion(1, 2, 3, "d")
with pytest.raises(TypeError):
Quaternion(None, 2, 3, 4)
with pytest.raises(TypeError):
Quaternion(1, None, 2, 4)
with pytest.raises(TypeError):
Quaternion(1, 2, None, 4)
with pytest.raises(TypeError):
Quaternion(1, 2, 3, None)
@pytest.mark.parametrize(
"field,ret_type,params",
[
["length", float, ()],
["length_squared", float, ()],
["normalized", Quaternion, ()],
["is_normalized", bool, ()],
["inverse", Quaternion, ()],
["dot", float, (Quaternion(),)],
["xform", Vector3, (Vector3(),)],
["slerp", Quaternion, (Quaternion(), 1.0)],
["slerpni", Quaternion, (Quaternion(), 1.0)],
["cubic_slerp", Quaternion, (Quaternion(), Quaternion(), Quaternion(), 1.0)],
["set_axis_angle", type(None), (Vector3(1, 2, 3), 3.3)],
],
ids=lambda x: x[0],
)
def test_methods(field, ret_type, params):
v = Quaternion()
# Don't test methods' validity but bindings one
assert hasattr(v, field)
method = getattr(v, field)
assert callable(method)
ret = method(*params)
assert type(ret) == ret_type
@pytest.mark.parametrize(
"field,ret_type", [("x", float), ("y", float), ("z", float), ("w", float)], ids=lambda x: x[0]
)
def test_properties(field, ret_type):
v = Quaternion()
assert hasattr(v, field)
field_val = getattr(v, field)
assert type(field_val) == ret_type
for val in (0, 10, 10.0, 42.5):
setattr(v, field, val)
field_val = getattr(v, field)
assert pytest.approx(field_val) == val
@pytest.mark.parametrize(
"field,bad_value",
[
("x", "NaN"),
("y", "NaN"),
("z", "NaN"),
("w", "NaN"),
("x", None),
("y", None),
("z", None),
("w", None),
],
ids=lambda x: x[0],
)
def test_bad_properties(field, bad_value):
v = Quaternion()
with pytest.raises(TypeError):
setattr(v, field, bad_value)
def test_unary():
v = Quaternion(1, 2, 3, 4)
v2 = -v
assert v2.x == -1
assert v2.y == -2
assert v2.z == -3
assert v2.w == -4
v3 = +v
assert v3.x == 1
assert v3.y == 2
assert v3.z == 3
assert v3.w == 4
v = Quaternion(1.5, 2.5, 3.5, 4.5)
v2 = -v
assert v2.x == -1.5
assert v2.y == -2.5
assert v2.z == -3.5
assert v2.w == -4.5
v3 = +v
assert v3.x == 1.5
assert v3.y == 2.5
assert v2.z == -3.5
assert v2.w == -4.5
@pytest.mark.parametrize(
"param,result",
[
(Quaternion(0, 0, 0, 0), Quaternion(2, 3, 4, 5)),
(Quaternion(4, 3, 2, 1), Quaternion(6, 6, 6, 6)),
(Quaternion(-4, -3, -2, -1), Quaternion(-2, -0, 2, 4)),
],
ids=lambda x: x[0],
)
def test_add(param, result):
calc = Quaternion(2, 3, 4, 5) + param
assert calc == result
@pytest.mark.parametrize(
"param,result",
[
(Quaternion(0, 0, 0, 0), Quaternion(2, 3, 4, 5)),
(Quaternion(5, 4, 3, 2), Quaternion(-3, -1, 1, 3)),
(Quaternion(-1, -1, -1, -1), Quaternion(3, 4, 5, 6)),
],
ids=lambda x: x[0],
)
def test_sub(param, result):
calc = Quaternion(2, 3, 4, 5) - param
assert calc == result
@pytest.mark.parametrize("arg", [None, 1, "dummy"], ids=lambda x: x[0])
def test_bad_add(arg):
with pytest.raises(TypeError):
Quaternion(2, 3, 4, 5) + arg
@pytest.mark.parametrize("arg", [None, 1, "dummy"], ids=lambda x: x[0])
def test_bad_sub(arg):
with pytest.raises(TypeError):
Quaternion(2, 3, 4, 5) - arg
@pytest.mark.parametrize("arg", [None, "dummy", Quaternion(1, 1, 1, 1)], ids=lambda x: x[0])
def test_bad_div(arg):
with pytest.raises(TypeError):
Quaternion(2, 3, 4, 5) / arg
def test_zero_div():
with pytest.raises(ZeroDivisionError):
Quaternion(2, 3, 4, 5) / 0
@pytest.mark.parametrize("arg", [None, "dummy"], ids=lambda x: x[0])
def test_bad_mul(arg):
with pytest.raises(TypeError):
Quaternion(2, 3, 4, 5) * arg
@pytest.mark.parametrize(
"param,result",
[(0, Quaternion(0, 0, 0, 0)), (1, Quaternion(2, 3, 4, 5)), (2.5, Quaternion(5, 7.5, 10, 12.5))],
ids=lambda x: x[0],
)
def test_mul(param, result):
calc = Quaternion(2, 3, 4, 5) * param
assert calc == result
@pytest.mark.parametrize(
"param,result",
[(1, Quaternion(2, 3, 4, 5)), (0.5, Quaternion(4, 6, 8, 10)), (2, Quaternion(1, 1.5, 2, 2.5))],
ids=lambda x: x[0],
)
def test_div(param, result):
calc = Quaternion(2, 3, 4, 5) / param
assert calc == result
def test_equal():
arr = Quaternion(0.1, 1, 2, 3)
other = Quaternion(0.1, 1, 2, 3)
assert arr == other
bad = Quaternion(0.1, 1, 2, 4)
assert not arr == bad # Force use of __eq__
@pytest.mark.parametrize("arg", [None, 0, "foo", Quaternion(0.1, 1, 2, 4)])
def test_bad_equal(arg):
arr = Quaternion(0.1, 1, 2, 3)
assert arr != arg