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# Copyright (c) 2019-2025, Saransh Chopra, Henry Schreiner, Eduardo Rodrigues, Jonas Eschle, and Jim Pivarski.
#
# Distributed under the 3-clause BSD license, see accompanying file LICENSE
# or https://github.com/scikit-hep/vector for details.
from __future__ import annotations
import numpy
import pytest
import vector.backends.numpy
import vector.backends.object
def test_planar_object():
v = vector.backends.object.VectorObject2D(
azimuthal=vector.backends.object.AzimuthalObjectXY(0.1, 0.2)
)
u = v.unit()
assert type(u) is type(v)
assert type(u.azimuthal) is type(v.azimuthal)
assert u.rho == pytest.approx(1)
for t1 in "xy", "rhophi":
t = getattr(v, "to_" + t1)()
u = t.unit()
assert type(u) is type(t)
assert type(u.azimuthal) is type(t.azimuthal)
assert u.rho == pytest.approx(1)
def test_planar_numpy():
v = vector.backends.numpy.VectorNumpy2D(
[(0.1, 0.2)],
dtype=[("x", numpy.float64), ("y", numpy.float64)],
)
u = v.unit()
assert type(u) is type(v)
assert type(u.azimuthal) is type(v.azimuthal)
assert u.rho[0] == pytest.approx(1)
for t1 in "xy", "rhophi":
t = getattr(v, "to_" + t1)()
u = t.unit()
assert type(u) is type(t)
assert type(u.azimuthal) is type(t.azimuthal)
assert u.rho[0] == pytest.approx(1)
def test_spatial_object():
v = vector.backends.object.VectorObject3D(
azimuthal=vector.backends.object.AzimuthalObjectXY(0.1, 0.2),
longitudinal=vector.backends.object.LongitudinalObjectZ(0.3),
)
u = v.unit()
assert type(u) is type(v)
assert type(u.azimuthal) is type(v.azimuthal)
assert type(u.longitudinal) is type(v.longitudinal)
assert u.mag == pytest.approx(1)
for t1 in "xyz", "xytheta", "xyeta", "rhophiz", "rhophitheta", "rhophieta":
t = getattr(v, "to_" + t1)()
u = t.unit()
assert type(u) is type(t)
assert type(u.azimuthal) is type(t.azimuthal)
assert type(u.longitudinal) is type(t.longitudinal)
assert u.mag == pytest.approx(1)
def test_spatial_numpy():
v = vector.backends.numpy.VectorNumpy3D(
[(0.1, 0.2, 0.3)],
dtype=[("x", numpy.float64), ("y", numpy.float64), ("z", numpy.float64)],
)
u = v.unit()
assert type(u) is type(v)
assert type(u.azimuthal) is type(v.azimuthal)
assert type(u.longitudinal) is type(v.longitudinal)
assert u.mag[0] == pytest.approx(1)
for t1 in "xyz", "xytheta", "xyeta", "rhophiz", "rhophitheta", "rhophieta":
t = getattr(v, "to_" + t1)()
u = t.unit()
assert type(u) is type(t)
assert type(u.azimuthal) is type(t.azimuthal)
assert type(u.longitudinal) is type(t.longitudinal)
assert u.mag[0] == pytest.approx(1)
def test_lorentz_object():
v = vector.backends.object.VectorObject4D(
azimuthal=vector.backends.object.AzimuthalObjectXY(0.1, 0.2),
longitudinal=vector.backends.object.LongitudinalObjectZ(0.3),
temporal=vector.backends.object.TemporalObjectT(0.4),
)
u = v.unit()
assert type(u) is type(v)
assert type(u.azimuthal) is type(v.azimuthal)
assert type(u.longitudinal) is type(v.longitudinal)
assert type(u.temporal) is type(v.temporal)
assert u.tau == pytest.approx(1)
for t1 in (
"xyzt",
"xythetat",
"xyetat",
"rhophizt",
"rhophithetat",
"rhophietat",
"xyztau",
"xythetatau",
"xyetatau",
"rhophiztau",
"rhophithetatau",
"rhophietatau",
):
t = getattr(v, "to_" + t1)()
u = t.unit()
assert type(u) is type(t)
assert type(u.azimuthal) is type(t.azimuthal)
assert type(u.longitudinal) is type(t.longitudinal)
assert type(u.temporal) is type(t.temporal)
assert u.tau == pytest.approx(1)
def test_lorentz_numpy():
v = vector.backends.numpy.VectorNumpy4D(
[(0.1, 0.2, 0.3, 0.4)],
dtype=[
("x", numpy.float64),
("y", numpy.float64),
("z", numpy.float64),
("t", numpy.float64),
],
)
u = v.unit()
assert type(u) is type(v)
assert type(u.azimuthal) is type(v.azimuthal)
assert type(u.longitudinal) is type(v.longitudinal)
assert type(u.temporal) is type(v.temporal)
assert u.tau[0] == pytest.approx(1)
for t1 in (
"xyzt",
"xythetat",
"xyetat",
"rhophizt",
"rhophithetat",
"rhophietat",
"xyztau",
"xythetatau",
"xyetatau",
"rhophiztau",
"rhophithetatau",
"rhophietatau",
):
t = getattr(v, "to_" + t1)()
u = t.unit()
assert type(u) is type(t)
assert type(u.azimuthal) is type(t.azimuthal)
assert type(u.longitudinal) is type(t.longitudinal)
assert type(u.temporal) is type(t.temporal)
assert u.tau[0] == pytest.approx(1)
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