1 files changed, 108 insertions, 0 deletions
diff --git a/3rdparty/pybind11/tests/test_operator_overloading.py b/3rdparty/pybind11/tests/test_operator_overloading.py
new file mode 100644
index 00000000..bd36ac2a
--- /dev/null
+++ b/3rdparty/pybind11/tests/test_operator_overloading.py
@@ -0,0 +1,108 @@
+import pytest
+from pybind11_tests import operators as m
+from pybind11_tests import ConstructorStats
+
+
+def test_operator_overloading():
+    v1 = m.Vector2(1, 2)
+    v2 = m.Vector(3, -1)
+    assert str(v1) == "[1.000000, 2.000000]"
+    assert str(v2) == "[3.000000, -1.000000]"
+
+    assert str(-v2) == "[-3.000000, 1.000000]"
+
+    assert str(v1 + v2) == "[4.000000, 1.000000]"
+    assert str(v1 - v2) == "[-2.000000, 3.000000]"
+    assert str(v1 - 8) == "[-7.000000, -6.000000]"
+    assert str(v1 + 8) == "[9.000000, 10.000000]"
+    assert str(v1 * 8) == "[8.000000, 16.000000]"
+    assert str(v1 / 8) == "[0.125000, 0.250000]"
+    assert str(8 - v1) == "[7.000000, 6.000000]"
+    assert str(8 + v1) == "[9.000000, 10.000000]"
+    assert str(8 * v1) == "[8.000000, 16.000000]"
+    assert str(8 / v1) == "[8.000000, 4.000000]"
+    assert str(v1 * v2) == "[3.000000, -2.000000]"
+    assert str(v2 / v1) == "[3.000000, -0.500000]"
+
+    v1 += 2 * v2
+    assert str(v1) == "[7.000000, 0.000000]"
+    v1 -= v2
+    assert str(v1) == "[4.000000, 1.000000]"
+    v1 *= 2
+    assert str(v1) == "[8.000000, 2.000000]"
+    v1 /= 16
+    assert str(v1) == "[0.500000, 0.125000]"
+    v1 *= v2
+    assert str(v1) == "[1.500000, -0.125000]"
+    v2 /= v1
+    assert str(v2) == "[2.000000, 8.000000]"
+
+    assert hash(v1) == 4
+
+    cstats = ConstructorStats.get(m.Vector2)
+    assert cstats.alive() == 2
+    del v1
+    assert cstats.alive() == 1
+    del v2
+    assert cstats.alive() == 0
+    assert cstats.values() == ['[1.000000, 2.000000]', '[3.000000, -1.000000]',
+                               '[-3.000000, 1.000000]', '[4.000000, 1.000000]',
+                               '[-2.000000, 3.000000]', '[-7.000000, -6.000000]',
+                               '[9.000000, 10.000000]', '[8.000000, 16.000000]',
+                               '[0.125000, 0.250000]', '[7.000000, 6.000000]',
+                               '[9.000000, 10.000000]', '[8.000000, 16.000000]',
+                               '[8.000000, 4.000000]', '[3.000000, -2.000000]',
+                               '[3.000000, -0.500000]', '[6.000000, -2.000000]']
+    assert cstats.default_constructions == 0
+    assert cstats.copy_constructions == 0
+    assert cstats.move_constructions >= 10
+    assert cstats.copy_assignments == 0
+    assert cstats.move_assignments == 0
+
+
+def test_operators_notimplemented():
+    """#393: need to return NotSupported to ensure correct arithmetic operator behavior"""
+
+    c1, c2 = m.C1(), m.C2()
+    assert c1 + c1 == 11
+    assert c2 + c2 == 22
+    assert c2 + c1 == 21
+    assert c1 + c2 == 12
+
+
+def test_nested():
+    """#328: first member in a class can't be used in operators"""
+
+    a = m.NestA()
+    b = m.NestB()
+    c = m.NestC()
+
+    a += 10
+    assert m.get_NestA(a) == 13
+    b.a += 100
+    assert m.get_NestA(b.a) == 103
+    c.b.a += 1000
+    assert m.get_NestA(c.b.a) == 1003
+    b -= 1
+    assert m.get_NestB(b) == 3
+    c.b -= 3
+    assert m.get_NestB(c.b) == 1
+    c *= 7
+    assert m.get_NestC(c) == 35
+
+    abase = a.as_base()
+    assert abase.value == -2
+    a.as_base().value += 44
+    assert abase.value == 42
+    assert c.b.a.as_base().value == -2
+    c.b.a.as_base().value += 44
+    assert c.b.a.as_base().value == 42
+
+    del c
+    pytest.gc_collect()
+    del a  # Shouldn't delete while abase is still alive
+    pytest.gc_collect()
+
+    assert abase.value == 42
+    del abase, b
+    pytest.gc_collect()