mirror of
https://github.com/pybind/pybind11.git
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1d1f81b278
This commit includes modifications that are needed to get pybind11 to work with PyPy. The full test suite compiles and runs except for a last few functions that are commented out (due to problems in PyPy that were reported on the PyPy bugtracker). Two somewhat intrusive changes were needed to make it possible: two new tags ``py::buffer_protocol()`` and ``py::metaclass()`` must now be specified to the ``class_`` constructor if the class uses the buffer protocol and/or requires a metaclass (e.g. for static properties). Note that this is only for the PyPy version based on Python 2.7 for now. When the PyPy 3.x has caught up in terms of cpyext compliance, a PyPy 3.x patch will follow.
260 lines
8.2 KiB
Python
260 lines
8.2 KiB
Python
import pytest
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import pybind11_tests
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from pybind11_tests import ConstructorStats
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def test_override(capture, msg):
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from pybind11_tests import (ExampleVirt, runExampleVirt, runExampleVirtVirtual,
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runExampleVirtBool)
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class ExtendedExampleVirt(ExampleVirt):
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def __init__(self, state):
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super(ExtendedExampleVirt, self).__init__(state + 1)
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self.data = "Hello world"
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def run(self, value):
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print('ExtendedExampleVirt::run(%i), calling parent..' % value)
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return super(ExtendedExampleVirt, self).run(value + 1)
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def run_bool(self):
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print('ExtendedExampleVirt::run_bool()')
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return False
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def get_string1(self):
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return "override1"
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def pure_virtual(self):
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print('ExtendedExampleVirt::pure_virtual(): %s' % self.data)
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class ExtendedExampleVirt2(ExtendedExampleVirt):
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def __init__(self, state):
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super(ExtendedExampleVirt2, self).__init__(state + 1)
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def get_string2(self):
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return "override2"
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ex12 = ExampleVirt(10)
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with capture:
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assert runExampleVirt(ex12, 20) == 30
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assert capture == """
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Original implementation of ExampleVirt::run(state=10, value=20, str1=default1, str2=default2)
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""" # noqa: E501 line too long
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with pytest.raises(RuntimeError) as excinfo:
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runExampleVirtVirtual(ex12)
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assert msg(excinfo.value) == 'Tried to call pure virtual function "ExampleVirt::pure_virtual"'
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ex12p = ExtendedExampleVirt(10)
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with capture:
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assert runExampleVirt(ex12p, 20) == 32
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assert capture == """
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ExtendedExampleVirt::run(20), calling parent..
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Original implementation of ExampleVirt::run(state=11, value=21, str1=override1, str2=default2)
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""" # noqa: E501 line too long
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with capture:
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assert runExampleVirtBool(ex12p) is False
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assert capture == "ExtendedExampleVirt::run_bool()"
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with capture:
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runExampleVirtVirtual(ex12p)
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assert capture == "ExtendedExampleVirt::pure_virtual(): Hello world"
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ex12p2 = ExtendedExampleVirt2(15)
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with capture:
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assert runExampleVirt(ex12p2, 50) == 68
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assert capture == """
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ExtendedExampleVirt::run(50), calling parent..
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Original implementation of ExampleVirt::run(state=17, value=51, str1=override1, str2=override2)
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""" # noqa: E501 line too long
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cstats = ConstructorStats.get(ExampleVirt)
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assert cstats.alive() == 3
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del ex12, ex12p, ex12p2
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assert cstats.alive() == 0
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assert cstats.values() == ['10', '11', '17']
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assert cstats.copy_constructions == 0
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assert cstats.move_constructions >= 0
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def test_inheriting_repeat():
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from pybind11_tests import A_Repeat, B_Repeat, C_Repeat, D_Repeat, A_Tpl, B_Tpl, C_Tpl, D_Tpl
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class AR(A_Repeat):
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def unlucky_number(self):
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return 99
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class AT(A_Tpl):
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def unlucky_number(self):
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return 999
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obj = AR()
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assert obj.say_something(3) == "hihihi"
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assert obj.unlucky_number() == 99
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assert obj.say_everything() == "hi 99"
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obj = AT()
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assert obj.say_something(3) == "hihihi"
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assert obj.unlucky_number() == 999
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assert obj.say_everything() == "hi 999"
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for obj in [B_Repeat(), B_Tpl()]:
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 13
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assert obj.lucky_number() == 7.0
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assert obj.say_everything() == "B says hi 1 times 13"
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for obj in [C_Repeat(), C_Tpl()]:
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 4444
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assert obj.lucky_number() == 888.0
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assert obj.say_everything() == "B says hi 1 times 4444"
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class CR(C_Repeat):
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def lucky_number(self):
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return C_Repeat.lucky_number(self) + 1.25
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obj = CR()
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 4444
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assert obj.lucky_number() == 889.25
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assert obj.say_everything() == "B says hi 1 times 4444"
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class CT(C_Tpl):
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pass
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obj = CT()
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 4444
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assert obj.lucky_number() == 888.0
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assert obj.say_everything() == "B says hi 1 times 4444"
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class CCR(CR):
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def lucky_number(self):
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return CR.lucky_number(self) * 10
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obj = CCR()
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 4444
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assert obj.lucky_number() == 8892.5
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assert obj.say_everything() == "B says hi 1 times 4444"
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class CCT(CT):
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def lucky_number(self):
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return CT.lucky_number(self) * 1000
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obj = CCT()
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 4444
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assert obj.lucky_number() == 888000.0
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assert obj.say_everything() == "B says hi 1 times 4444"
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class DR(D_Repeat):
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def unlucky_number(self):
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return 123
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def lucky_number(self):
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return 42.0
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for obj in [D_Repeat(), D_Tpl()]:
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 4444
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assert obj.lucky_number() == 888.0
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assert obj.say_everything() == "B says hi 1 times 4444"
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obj = DR()
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assert obj.say_something(3) == "B says hi 3 times"
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assert obj.unlucky_number() == 123
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assert obj.lucky_number() == 42.0
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assert obj.say_everything() == "B says hi 1 times 123"
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class DT(D_Tpl):
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def say_something(self, times):
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return "DT says:" + (' quack' * times)
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def unlucky_number(self):
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return 1234
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def lucky_number(self):
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return -4.25
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obj = DT()
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assert obj.say_something(3) == "DT says: quack quack quack"
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assert obj.unlucky_number() == 1234
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assert obj.lucky_number() == -4.25
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assert obj.say_everything() == "DT says: quack 1234"
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class DT2(DT):
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def say_something(self, times):
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return "DT2: " + ('QUACK' * times)
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def unlucky_number(self):
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return -3
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class BT(B_Tpl):
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def say_something(self, times):
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return "BT" * times
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def unlucky_number(self):
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return -7
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def lucky_number(self):
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return -1.375
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obj = BT()
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assert obj.say_something(3) == "BTBTBT"
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assert obj.unlucky_number() == -7
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assert obj.lucky_number() == -1.375
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assert obj.say_everything() == "BT -7"
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# PyPy: Reference count > 1 causes call with noncopyable instance
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# to fail in ncv1.print_nc()
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@pytest.unsupported_on_pypy
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@pytest.mark.skipif(not hasattr(pybind11_tests, 'NCVirt'),
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reason="NCVirt test broken on ICPC")
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def test_move_support():
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from pybind11_tests import NCVirt, NonCopyable, Movable
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class NCVirtExt(NCVirt):
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def get_noncopyable(self, a, b):
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# Constructs and returns a new instance:
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nc = NonCopyable(a * a, b * b)
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return nc
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def get_movable(self, a, b):
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# Return a referenced copy
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self.movable = Movable(a, b)
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return self.movable
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class NCVirtExt2(NCVirt):
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def get_noncopyable(self, a, b):
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# Keep a reference: this is going to throw an exception
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self.nc = NonCopyable(a, b)
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return self.nc
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def get_movable(self, a, b):
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# Return a new instance without storing it
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return Movable(a, b)
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ncv1 = NCVirtExt()
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assert ncv1.print_nc(2, 3) == "36"
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assert ncv1.print_movable(4, 5) == "9"
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ncv2 = NCVirtExt2()
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assert ncv2.print_movable(7, 7) == "14"
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# Don't check the exception message here because it differs under debug/non-debug mode
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with pytest.raises(RuntimeError):
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ncv2.print_nc(9, 9)
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nc_stats = ConstructorStats.get(NonCopyable)
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mv_stats = ConstructorStats.get(Movable)
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assert nc_stats.alive() == 1
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assert mv_stats.alive() == 1
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del ncv1, ncv2
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assert nc_stats.alive() == 0
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assert mv_stats.alive() == 0
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assert nc_stats.values() == ['4', '9', '9', '9']
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assert mv_stats.values() == ['4', '5', '7', '7']
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assert nc_stats.copy_constructions == 0
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assert mv_stats.copy_constructions == 1
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assert nc_stats.move_constructions >= 0
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assert mv_stats.move_constructions >= 0
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