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* `#error BYE_BYE_GOLDEN_SNAKE` * Removing everything related to 2.7 from ci.yml * Commenting-out Centos7 * Removing `PYTHON: 27` from .appveyor.yml * "PY2" removal, mainly from tests. C++ code is not touched. * Systematic removal of `u` prefix from `u"..."` and `u'...'` literals. Collateral cleanup of a couple minor other things. * Cleaning up around case-insensitive hits for `[^a-z]py.*2` in tests/. * Removing obsolete Python 2 mention in compiling.rst * Proper `#error` for Python 2. * Using PY_VERSION_HEX to guard `#error "PYTHON 2 IS NO LONGER SUPPORTED.` * chore: bump pre-commit * style: run pre-commit for pyupgrade 3+ * tests: use sys.version_info, not PY * chore: more Python 2 removal * Uncommenting Centos7 block (PR #3691 showed that it is working again). * Update pre-commit hooks * Fix pre-commit hook * refactor: remove Python 2 from CMake * refactor: remove Python 2 from setup code * refactor: simplify, better static typing * feat: fail with nice messages * refactor: drop Python 2 C++ code * docs: cleanup for Python 3 * revert: intree revert: intree * docs: minor touchup to py2 statement Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com> Co-authored-by: Aaron Gokaslan <skylion.aaron@gmail.com>
153 lines
4.2 KiB
Python
153 lines
4.2 KiB
Python
import pytest
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from pybind11_tests import ConstructorStats
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from pybind11_tests import operators as m
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def test_operator_overloading():
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v1 = m.Vector2(1, 2)
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v2 = m.Vector(3, -1)
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v3 = m.Vector2(1, 2) # Same value as v1, but different instance.
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assert v1 is not v3
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assert str(v1) == "[1.000000, 2.000000]"
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assert str(v2) == "[3.000000, -1.000000]"
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assert str(-v2) == "[-3.000000, 1.000000]"
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assert str(v1 + v2) == "[4.000000, 1.000000]"
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assert str(v1 - v2) == "[-2.000000, 3.000000]"
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assert str(v1 - 8) == "[-7.000000, -6.000000]"
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assert str(v1 + 8) == "[9.000000, 10.000000]"
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assert str(v1 * 8) == "[8.000000, 16.000000]"
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assert str(v1 / 8) == "[0.125000, 0.250000]"
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assert str(8 - v1) == "[7.000000, 6.000000]"
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assert str(8 + v1) == "[9.000000, 10.000000]"
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assert str(8 * v1) == "[8.000000, 16.000000]"
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assert str(8 / v1) == "[8.000000, 4.000000]"
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assert str(v1 * v2) == "[3.000000, -2.000000]"
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assert str(v2 / v1) == "[3.000000, -0.500000]"
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assert v1 == v3
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assert v1 != v2
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assert hash(v1) == 4
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# TODO(eric.cousineau): Make this work.
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# assert abs(v1) == "abs(Vector2)"
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v1 += 2 * v2
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assert str(v1) == "[7.000000, 0.000000]"
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v1 -= v2
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assert str(v1) == "[4.000000, 1.000000]"
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v1 *= 2
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assert str(v1) == "[8.000000, 2.000000]"
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v1 /= 16
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assert str(v1) == "[0.500000, 0.125000]"
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v1 *= v2
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assert str(v1) == "[1.500000, -0.125000]"
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v2 /= v1
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assert str(v2) == "[2.000000, 8.000000]"
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cstats = ConstructorStats.get(m.Vector2)
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assert cstats.alive() == 3
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del v1
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assert cstats.alive() == 2
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del v2
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assert cstats.alive() == 1
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del v3
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assert cstats.alive() == 0
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assert cstats.values() == [
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"[1.000000, 2.000000]",
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"[3.000000, -1.000000]",
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"[1.000000, 2.000000]",
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"[-3.000000, 1.000000]",
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"[4.000000, 1.000000]",
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"[-2.000000, 3.000000]",
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"[-7.000000, -6.000000]",
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"[9.000000, 10.000000]",
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"[8.000000, 16.000000]",
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"[0.125000, 0.250000]",
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"[7.000000, 6.000000]",
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"[9.000000, 10.000000]",
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"[8.000000, 16.000000]",
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"[8.000000, 4.000000]",
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"[3.000000, -2.000000]",
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"[3.000000, -0.500000]",
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"[6.000000, -2.000000]",
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]
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assert cstats.default_constructions == 0
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assert cstats.copy_constructions == 0
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assert cstats.move_constructions >= 10
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assert cstats.copy_assignments == 0
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assert cstats.move_assignments == 0
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def test_operators_notimplemented():
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"""#393: need to return NotSupported to ensure correct arithmetic operator behavior"""
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c1, c2 = m.C1(), m.C2()
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assert c1 + c1 == 11
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assert c2 + c2 == 22
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assert c2 + c1 == 21
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assert c1 + c2 == 12
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def test_nested():
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"""#328: first member in a class can't be used in operators"""
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a = m.NestA()
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b = m.NestB()
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c = m.NestC()
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a += 10
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assert m.get_NestA(a) == 13
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b.a += 100
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assert m.get_NestA(b.a) == 103
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c.b.a += 1000
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assert m.get_NestA(c.b.a) == 1003
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b -= 1
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assert m.get_NestB(b) == 3
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c.b -= 3
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assert m.get_NestB(c.b) == 1
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c *= 7
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assert m.get_NestC(c) == 35
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abase = a.as_base()
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assert abase.value == -2
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a.as_base().value += 44
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assert abase.value == 42
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assert c.b.a.as_base().value == -2
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c.b.a.as_base().value += 44
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assert c.b.a.as_base().value == 42
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del c
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pytest.gc_collect()
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del a # Shouldn't delete while abase is still alive
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pytest.gc_collect()
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assert abase.value == 42
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del abase, b
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pytest.gc_collect()
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def test_overriding_eq_reset_hash():
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assert m.Comparable(15) is not m.Comparable(15)
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assert m.Comparable(15) == m.Comparable(15)
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with pytest.raises(TypeError) as excinfo:
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hash(m.Comparable(15))
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assert str(excinfo.value).startswith("unhashable type:")
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for hashable in (m.Hashable, m.Hashable2):
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assert hashable(15) is not hashable(15)
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assert hashable(15) == hashable(15)
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assert hash(hashable(15)) == 15
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assert hash(hashable(15)) == hash(hashable(15))
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def test_return_set_of_unhashable():
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with pytest.raises(TypeError) as excinfo:
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m.get_unhashable_HashMe_set()
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assert str(excinfo.value.__cause__).startswith("unhashable type:")
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