Refactoring main_function_test.py

This commit is contained in:
Yannick Jadoul
2019-12-26 14:55:08 +01:00
parent 5e33011229
commit 05e7858815
4 changed files with 305 additions and 292 deletions
-292
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import sys
import os
import subprocess
import pytest
from cibuildwheel.__main__ import main
from cibuildwheel import windows, linux, macos
from cibuildwheel.util import BuildSelector
from cibuildwheel.environment import ParsedEnvironment
@pytest.fixture
def argtest():
class TestArgs(object):
def __call__(self, **kwargs):
self.kwargs = dict(kwargs)
return TestArgs()
def not_call_mock(*args, **kwargs):
raise RuntimeError("This should never be called")
@pytest.fixture(autouse=True)
def apply_mock_protection(monkeypatch):
monkeypatch.setattr(subprocess, "Popen", not_call_mock)
monkeypatch.setattr(windows, "urlopen", not_call_mock)
monkeypatch.setattr(windows, "build", not_call_mock)
monkeypatch.setattr(linux, "build", not_call_mock)
monkeypatch.setattr(macos, "build", not_call_mock)
monkeypatch.setattr(os.path, "exists", lambda x: True)
monkeypatch.setattr(sys, "argv", ["python", "abcabc"])
def test_unknown_platform_non_ci(monkeypatch, capsys):
monkeypatch.setattr(os, 'environ', {})
with pytest.raises(SystemExit) as exit:
main()
assert exit.value.code == 2
_, err = capsys.readouterr()
assert 'cibuildwheel: Unable to detect platform.' in err
assert "cibuildwheel should run on your CI server" in err
def test_unknown_platform_on_ci(monkeypatch, capsys):
monkeypatch.setattr(os, 'environ', {"CI": "true"})
monkeypatch.setattr(sys, "platform", "Something")
with pytest.raises(SystemExit) as exit:
main()
_, err = capsys.readouterr()
assert exit.value.code == 2
assert 'cibuildwheel: Unable to detect platform from "sys.platform"' in err
def test_unknown_platform(monkeypatch, capsys):
monkeypatch.setattr(os, 'environ', {"CIBW_PLATFORM": "Something"})
with pytest.raises(SystemExit) as exit:
main()
_, err = capsys.readouterr()
assert exit.value.code == 2
assert 'cibuildwheel: Unsupported platform: Something' in err
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("choose_platform_method", ["partameter", "environment"])
def test_platform_chose(system, choose_platform_method, argtest, monkeypatch):
monkeypatch.setattr(globals()[system], "build", argtest)
if choose_platform_method == "partameter":
monkeypatch.setattr(sys, "argv", sys.argv + ["--platform", system])
else:
monkeypatch.setattr(os, 'environ', {"CIBW_PLATFORM": system})
main()
assert argtest.kwargs["project_dir"] == "abcabc"
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("output_dir", ["partameter", "environment", "both", "none"])
def test_output_dir_set(system, output_dir, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
output_name = "out"
env = {"CIBW_PLATFORM": system}
if output_dir == "partameter":
monkeypatch.setattr(sys, "argv", sys.argv + ["--output-dir", output_name])
elif output_dir == "environment":
env["CIBW_OUTPUT_DIR"] = output_name
elif output_dir == "both":
monkeypatch.setattr(sys, "argv", sys.argv + ["--output-dir", output_name])
env["CIBW_OUTPUT_DIR"] = output_name + "aaa"
else:
output_name = "wheelhouse"
monkeypatch.setattr(os, 'environ', env)
main()
assert argtest.kwargs["output_dir"] == output_name
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("build,build_set", [
("*", {"aaaa", "abcd", "abab", "bcde"}),
("a*", {"aaaa", "abcd", "abab"}),
("*b*", {"abcd", "abab", "bcde"})
])
@pytest.mark.parametrize("skip,skip_set", [
("", set()), ("a*", {"aaaa", "abcd", "abab"}),
("*c*", {"abcd", "bcde"})
])
def test_build_selector(system, build, build_set, skip, skip_set, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system, "CIBW_BUILD": build, "CIBW_SKIP": skip}
monkeypatch.setattr(os, 'environ', env)
main()
assert isinstance(argtest.kwargs["build_selector"], BuildSelector)
selector = argtest.kwargs["build_selector"]
selected = set([x for x in ["aaaa", "abcd", "abab", "bcde"] if selector(x)])
assert selected == build_set.difference(skip_set)
@pytest.mark.parametrize("system", ["macos", "windows"])
@pytest.mark.parametrize("manylinux", ["none", "manylinux1"])
def test_no_manylinux(system, manylinux, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
if manylinux != "none":
env["CIBW_MANYLINUX_I686_IMAGE"] = manylinux
env["CIBW_MANYLINUX_X86_64_IMAGE"] = manylinux
monkeypatch.setattr(os, 'environ', env)
main()
assert "manylinux_images" not in argtest.kwargs
@pytest.mark.parametrize("manylinux86,manylinux86_image", [
("none", 'quay.io/pypa/manylinux2010_i686'),
("manylinux1", 'quay.io/pypa/manylinux1_i686'),
("manylinux2010", 'quay.io/pypa/manylinux2010_i686'),
("asfsgd", "asfsgd")])
@pytest.mark.parametrize("manylinux64, manylinux64_image", [
("none", 'quay.io/pypa/manylinux2010_x86_64'),
("manylinux1", 'quay.io/pypa/manylinux1_x86_64'),
("manylinux2010", 'quay.io/pypa/manylinux2010_x86_64'),
("asfsgd", "asfsgd")])
def test_manylinux_choose(manylinux86, manylinux86_image, manylinux64,
manylinux64_image, monkeypatch, argtest):
monkeypatch.setattr(linux, "build", argtest)
env = {"CIBW_PLATFORM": "linux"}
if manylinux86 != "none":
env["CIBW_MANYLINUX_I686_IMAGE"] = manylinux86
if manylinux64 != "none":
env["CIBW_MANYLINUX_X86_64_IMAGE"] = manylinux64
monkeypatch.setattr(os, 'environ', env)
main()
assert argtest.kwargs["manylinux_images"]['x86_64'] == manylinux64_image
assert argtest.kwargs["manylinux_images"]['i686'] == manylinux86_image
@pytest.mark.parametrize("system,default_repair", [
("macos", "delocate"), ("linux", "auditwheel"),
("windows", "")])
@pytest.mark.parametrize("repair_command", ["none", "aaaa", "repair -w {dest_dir} {wheel}"])
@pytest.mark.parametrize("system_suffix", (True, False))
def test_repair_command(system, default_repair, repair_command, system_suffix, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
if repair_command != "none":
env["CIBW_REPAIR_WHEEL_COMMAND"] = repair_command
if system_suffix:
env["CIBW_REPAIR_WHEEL_COMMAND_" + system.upper()] = "abcabc"
monkeypatch.setattr(os, 'environ', env)
main()
if system_suffix:
assert argtest.kwargs["repair_command"] == "abcabc"
elif repair_command == "none":
if default_repair:
assert argtest.kwargs["repair_command"].startswith(default_repair)
else:
assert len(argtest.kwargs["repair_command"]) == 0
else:
assert argtest.kwargs["repair_command"] == repair_command
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("environment", [{}, {"AAA": "123"}, {"AA1": "124", "AA2": "124"}])
@pytest.mark.parametrize("platform_environment", [{}, {"BBB": "123"}, {"BB1": "123", "BB2": "127"}])
def test_environment(system, environment, platform_environment, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
cibw_env = " ".join(["{}={}".format(k, v) for k, v in environment.items()])
platform_env = " ".join(["{}={}".format(k, v) for k, v in platform_environment.items()])
if cibw_env:
env["CIBW_ENVIRONMENT"] = cibw_env
if platform_env:
env["CIBW_ENVIRONMENT_{}".format(system.upper())] = platform_env
monkeypatch.setattr(os, 'environ', env)
main()
assert isinstance(argtest.kwargs["environment"], ParsedEnvironment)
if platform_environment:
assert argtest.kwargs["environment"].as_dictionary({}) == platform_environment
else:
assert argtest.kwargs["environment"].as_dictionary({}) == environment
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("test_requires", ["", "test1"])
@pytest.mark.parametrize("platform_test_requires", ["", "test2"])
def test_test_requires(system, test_requires, platform_test_requires, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
if test_requires:
env["CIBW_TEST_REQUIRES"] = test_requires
if platform_test_requires:
env["CIBW_TEST_REQUIRES_{}".format(system.upper())] = platform_test_requires
monkeypatch.setattr(os, 'environ', env)
main()
assert isinstance(argtest.kwargs["environment"], ParsedEnvironment)
if platform_test_requires:
assert argtest.kwargs["test_requires"] == platform_test_requires.split()
else:
assert argtest.kwargs["test_requires"] == test_requires.split()
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("test_extras", ["", "test1"])
@pytest.mark.parametrize("platform_test_extras", ["", "test2"])
def test_test_extras(system, test_extras, platform_test_extras, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
if test_extras:
env["CIBW_TEST_EXTRAS"] = test_extras
if platform_test_extras:
env["CIBW_TEST_EXTRAS_{}".format(system.upper())] = platform_test_extras
monkeypatch.setattr(os, 'environ', env)
main()
assert isinstance(argtest.kwargs["environment"], ParsedEnvironment)
if platform_test_extras:
assert argtest.kwargs["test_extras"] == "[" + platform_test_extras + "]"
elif test_extras:
assert argtest.kwargs["test_extras"] == "[" + test_extras + "]"
else:
assert argtest.kwargs["test_extras"] == ""
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("test_command", [None, "test1"])
@pytest.mark.parametrize("platform_test_command", [None, "test2"])
def test_test_command(system, test_command, platform_test_command, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
if test_command:
env["CIBW_TEST_COMMAND"] = test_command
if platform_test_command:
env["CIBW_TEST_COMMAND_{}".format(system.upper())] = platform_test_command
monkeypatch.setattr(os, 'environ', env)
main()
assert isinstance(argtest.kwargs["environment"], ParsedEnvironment)
if platform_test_command:
assert argtest.kwargs["test_command"] == platform_test_command
else:
assert argtest.kwargs["test_command"] == test_command
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("before_build", [None, "test1"])
@pytest.mark.parametrize("platform_before_build", [None, "test2"])
def test_before_build(system, before_build, platform_before_build, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
if before_build:
env["CIBW_BEFORE_BUILD"] = before_build
if platform_before_build:
env["CIBW_BEFORE_BUILD_{}".format(system.upper())] = platform_before_build
monkeypatch.setattr(os, 'environ', env)
main()
assert isinstance(argtest.kwargs["environment"], ParsedEnvironment)
if platform_before_build:
assert argtest.kwargs["before_build"] == platform_before_build
else:
assert argtest.kwargs["before_build"] == before_build
@pytest.mark.parametrize("system", ["macos", "linux", "windows"])
@pytest.mark.parametrize("verbosity", [None, 0, -2, 4])
@pytest.mark.parametrize("platform_verbosity", [None, 0, 2, -4])
def test_build_verbosity(system, verbosity, platform_verbosity, monkeypatch, argtest):
monkeypatch.setattr(globals()[system], "build", argtest)
env = {"CIBW_PLATFORM": system}
if verbosity is not None:
env["CIBW_BUILD_VERBOSITY"] = verbosity
if platform_verbosity is not None:
env["CIBW_BUILD_VERBOSITY_{}".format(system.upper())] = platform_verbosity
monkeypatch.setattr(os, 'environ', env)
main()
assert isinstance(argtest.kwargs["environment"], ParsedEnvironment)
if platform_verbosity is not None:
assert argtest.kwargs["build_verbosity"] == platform_verbosity if platform_verbosity > -4 else -3
elif verbosity is not None:
assert argtest.kwargs["build_verbosity"] == verbosity if verbosity < 4 else 3
else:
assert argtest.kwargs["build_verbosity"] == 0
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import pytest
import sys
from cibuildwheel import linux, macos, windows
from cibuildwheel.__main__ import main
from cibuildwheel.environment import ParsedEnvironment
from cibuildwheel.util import BuildSelector
from main_util_fixtures import mock_protection, platform, intercepted_build_args
# CIBW_PLATFORM is tested in main_platform_test.py
def test_output_dir(platform, intercepted_build_args, monkeypatch):
OUTPUT_DIR = 'some_output_dir'
monkeypatch.setenv('CIBW_OUTPUT_DIR', OUTPUT_DIR)
main()
assert intercepted_build_args.kwargs['output_dir'] == OUTPUT_DIR
def test_output_dir_default(platform, intercepted_build_args, monkeypatch):
main()
assert intercepted_build_args.kwargs['output_dir'] == 'wheelhouse'
@pytest.mark.parametrize('also_set_environment', [False, True])
def test_output_dir_argument(also_set_environment, platform, intercepted_build_args, monkeypatch):
OUTPUT_DIR = 'some_output_dir'
monkeypatch.setattr(sys, 'argv', sys.argv + ['--output-dir', OUTPUT_DIR])
if also_set_environment:
monkeypatch.setenv('CIBW_OUTPUT_DIR', 'not_this_output_dir')
main()
assert intercepted_build_args.kwargs['output_dir'] == OUTPUT_DIR
def test_build_selector(platform, intercepted_build_args, monkeypatch):
BUILD = 'some build* *-selector'
SKIP = 'some skip* *-selector'
monkeypatch.setenv('CIBW_BUILD', BUILD)
monkeypatch.setenv('CIBW_SKIP', SKIP)
main()
intercepted_build_selector = intercepted_build_args.kwargs['build_selector']
assert isinstance(intercepted_build_selector, BuildSelector)
assert intercepted_build_selector('build-this')
assert not intercepted_build_selector('skip-that')
# This unit test is just testing the options of 'main'
# Unit tests for BuildSelector are in build_selector_test.py
@pytest.mark.parametrize('architecture, image, full_image', [
('x86_64', None, 'quay.io/pypa/manylinux2010_x86_64'),
('x86_64', 'manylinux1', 'quay.io/pypa/manylinux1_x86_64'),
('x86_64', 'manylinux2010', 'quay.io/pypa/manylinux2010_x86_64'),
('x86_64', 'custom_image', None),
('i686', None, 'quay.io/pypa/manylinux2010_i686'),
('i686', 'manylinux1', 'quay.io/pypa/manylinux1_i686'),
('i686', 'manylinux2010', 'quay.io/pypa/manylinux2010_i686'),
('i686', 'custom_image', None),
])
def test_manylinux_images(architecture, image, full_image, platform, intercepted_build_args, monkeypatch):
if image is not None:
monkeypatch.setenv('CIBW_MANYLINUX_' + architecture.upper() + '_IMAGE', image)
main()
if platform == 'linux':
assert intercepted_build_args.kwargs['manylinux_images'][architecture] == full_image or image
else:
assert 'manylinux_images' not in intercepted_build_args.kwargs
def get_default_repair_command(platform):
if platform == 'linux':
return 'auditwheel repair -w {dest_dir} {wheel}'
elif platform == 'macos':
return 'delocate-listdeps {wheel} && delocate-wheel -w {dest_dir} {wheel}'
elif platform == 'windows':
return ''
@pytest.mark.parametrize('repair_command', [None, 'repair', 'repair -w {dest_dir} {wheel}'])
@pytest.mark.parametrize('platform_specific', [False, True])
def test_repair_command(repair_command, platform_specific, platform, intercepted_build_args, monkeypatch):
if repair_command is not None:
if platform_specific:
monkeypatch.setenv('CIBW_REPAIR_WHEEL_COMMAND_' + platform.upper(), repair_command)
monkeypatch.setenv('CIBW_REPAIR_WHEEL_COMMAND', 'overwritten')
else:
monkeypatch.setenv('CIBW_REPAIR_WHEEL_COMMAND', repair_command)
main()
expected_repair = repair_command or get_default_repair_command(platform)
assert intercepted_build_args.kwargs['repair_command'] == expected_repair
@pytest.mark.parametrize('environment', [
{},
{'something': 'value'},
{'something': 'value', 'something_else': 'other_value'}
])
@pytest.mark.parametrize('platform_specific', [False, True])
def test_environment(environment, platform_specific, platform, intercepted_build_args, monkeypatch):
env_string = ' '.join(['{}={}'.format(k, v) for k, v in environment.items()])
if platform_specific:
monkeypatch.setenv('CIBW_ENVIRONMENT_' + platform.upper(), env_string)
monkeypatch.setenv('CIBW_ENVIRONMENT', 'overwritten')
else:
monkeypatch.setenv('CIBW_ENVIRONMENT', env_string)
main()
intercepted_environment = intercepted_build_args.kwargs['environment']
assert isinstance(intercepted_environment, ParsedEnvironment)
assert intercepted_environment.as_dictionary({}) == environment
@pytest.mark.parametrize('test_requires', [None, 'requirement other_requirement'])
@pytest.mark.parametrize('platform_specific', [False, True])
def test_test_requires(test_requires, platform_specific, platform, intercepted_build_args, monkeypatch):
if test_requires is not None:
if platform_specific:
monkeypatch.setenv('CIBW_TEST_REQUIRES_' + platform.upper(), test_requires)
monkeypatch.setenv('CIBW_TEST_REQUIRES', 'overwritten')
else:
monkeypatch.setenv('CIBW_TEST_REQUIRES', test_requires)
main()
assert intercepted_build_args.kwargs['test_requires'] == (test_requires or '').split()
@pytest.mark.parametrize('test_extras', [None, 'extras'])
@pytest.mark.parametrize('platform_specific', [False, True])
def test_test_extras(test_extras, platform_specific, platform, intercepted_build_args, monkeypatch):
if test_extras is not None:
if platform_specific:
monkeypatch.setenv('CIBW_TEST_EXTRAS_' + platform.upper(), test_extras)
monkeypatch.setenv('CIBW_TEST_EXTRAS', 'overwritten')
else:
monkeypatch.setenv('CIBW_TEST_EXTRAS', test_extras)
main()
assert intercepted_build_args.kwargs['test_extras'] == ('[' + test_extras + ']' if test_extras else '')
@pytest.mark.parametrize('test_command', [None, 'test --command'])
@pytest.mark.parametrize('platform_specific', [False, True])
def test_test_command(test_command, platform_specific, platform, intercepted_build_args, monkeypatch):
if test_command is not None:
if platform_specific:
monkeypatch.setenv('CIBW_TEST_COMMAND_' + platform.upper(), test_command)
monkeypatch.setenv('CIBW_TEST_COMMAND', 'overwritten')
else:
monkeypatch.setenv('CIBW_TEST_COMMAND', test_command)
main()
assert intercepted_build_args.kwargs['test_command'] == test_command or ''
@pytest.mark.parametrize('before_build', [None, 'before --build'])
@pytest.mark.parametrize('platform_specific', [False, True])
def test_before_build(before_build, platform_specific, platform, intercepted_build_args, monkeypatch):
if before_build is not None:
if platform_specific:
monkeypatch.setenv('CIBW_BEFORE_BUILD_' + platform.upper(), before_build)
monkeypatch.setenv('CIBW_BEFORE_BUILD', 'overwritten')
else:
monkeypatch.setenv('CIBW_BEFORE_BUILD', before_build)
main()
assert intercepted_build_args.kwargs['before_build'] == before_build or ''
@pytest.mark.parametrize('build_verbosity', [None, 0, 2, -2, 4, -4])
@pytest.mark.parametrize('platform_specific', [False, True])
def test_build_verbosity(build_verbosity, platform_specific, platform, intercepted_build_args, monkeypatch):
if build_verbosity is not None:
if platform_specific:
monkeypatch.setenv('CIBW_BUILD_VERBOSITY_' + platform.upper(), str(build_verbosity))
monkeypatch.setenv('CIBW_BUILD_VERBOSITY', 'overwritten')
else:
monkeypatch.setenv('CIBW_BUILD_VERBOSITY', str(build_verbosity))
main()
expected_verbosity = max(-3, min(3, int(build_verbosity or 0)))
assert intercepted_build_args.kwargs['build_verbosity'] == expected_verbosity
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import pytest
import sys
from cibuildwheel.__main__ import main
from cibuildwheel import linux, macos, windows
from main_util_fixtures import MOCK_PROJECT_DIR, mock_protection, platform, intercepted_build_args
def test_unknown_platform_non_ci(monkeypatch, capsys):
monkeypatch.delenv('CI', raising=False)
monkeypatch.delenv('BITRISE_BUILD_NUMBER', raising=False)
monkeypatch.delenv('AZURE_HTTP_USER_AGENT', raising=False)
with pytest.raises(SystemExit) as exit:
main()
assert exit.value.code == 2
_, err = capsys.readouterr()
assert 'cibuildwheel: Unable to detect platform.' in err
assert 'cibuildwheel should run on your CI server' in err
def test_unknown_platform_on_ci(monkeypatch, capsys):
monkeypatch.setenv('CI', 'true')
monkeypatch.setattr(sys, 'platform', 'nonexistent')
with pytest.raises(SystemExit) as exit:
main()
assert exit.value.code == 2
_, err = capsys.readouterr()
assert 'cibuildwheel: Unable to detect platform from "sys.platform"' in err
def test_unknown_platform(monkeypatch, capsys):
monkeypatch.setenv('CIBW_PLATFORM', 'nonexistent')
with pytest.raises(SystemExit) as exit:
main()
_, err = capsys.readouterr()
assert exit.value.code == 2
assert 'cibuildwheel: Unsupported platform: nonexistent' in err
def test_platform_argument(platform, intercepted_build_args, monkeypatch):
monkeypatch.setattr(sys, 'argv', sys.argv + ['--platform', platform])
main()
assert intercepted_build_args.kwargs['project_dir'] == MOCK_PROJECT_DIR
def test_platform_environment(platform, intercepted_build_args, monkeypatch):
main()
assert intercepted_build_args.kwargs['project_dir'] == MOCK_PROJECT_DIR
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import pytest
import sys
import os
import subprocess
from cibuildwheel import linux, macos, windows
class ArgsInterceptor(object):
def __call__(self, *args, **kwargs):
self.args = args
self.kwargs = kwargs
MOCK_PROJECT_DIR = 'some_project_dir'
@pytest.fixture(autouse=True)
def mock_protection(monkeypatch):
def fail_on_call(*args, **kwargs):
raise RuntimeError("This should never be called")
monkeypatch.setattr(subprocess, 'Popen', fail_on_call)
monkeypatch.setattr(windows, 'urlopen', fail_on_call)
monkeypatch.setattr(windows, 'build', fail_on_call)
monkeypatch.setattr(linux, 'build', fail_on_call)
monkeypatch.setattr(macos, 'build', fail_on_call)
monkeypatch.setattr(os.path, 'exists', lambda x: True)
monkeypatch.setattr(sys, 'argv', ['cibuildwheel', MOCK_PROJECT_DIR])
@pytest.fixture(params=['linux', 'macos', 'windows'])
def platform(request, monkeypatch):
platform_value = request.param
monkeypatch.setenv('CIBW_PLATFORM', platform_value)
return platform_value
@pytest.fixture
def intercepted_build_args(platform, monkeypatch):
intercepted = ArgsInterceptor()
monkeypatch.setattr(globals()[platform], 'build', intercepted)
return intercepted