TST: rename NOGIL_BUILD to FREE_THREADED_BUILD

For consistency with official nomenclature. Move common constants
definitions into `conftest` instead than importing them from other test
modules.

Fixes #857.

Author: dnicolodi

tests/conftest.py

@@ -29,6 +29,15 @@
 _meson_ver_str = subprocess.run(['meson', '--version'], check=True, stdout=subprocess.PIPE, text=True).stdout
 MESON_VERSION = tuple(map(int, _meson_ver_str.split('.')[:3]))
 
+EXT_SUFFIX = sysconfig.get_config_var('EXT_SUFFIX')
+if sys.version_info <= (3, 8, 7):
+    if MESON_VERSION >= (0, 99):
+        # Fixed in Meson 1.0, see https://github.com/mesonbuild/meson/pull/10961.
+        from distutils.sysconfig import get_config_var
+        EXT_SUFFIX = get_config_var('EXT_SUFFIX')
+
+FREE_THREADED_BUILD = bool(sysconfig.get_config_var('Py_GIL_DISABLED'))
+
 
 def metadata(data):
     meta, other = packaging.metadata.parse_email(data)

tests/test_editable.py

@@ -18,7 +18,7 @@
 
 from mesonpy import _editable
 
-from .test_wheel import EXT_SUFFIX, NOGIL_BUILD
+from .conftest import EXT_SUFFIX, FREE_THREADED_BUILD
 
 
 def find_cython_version():
@@ -75,7 +75,7 @@ def test_collect(package_complex):
     assert tree['complex']['more']['__init__.py'] == os.path.join(root, 'complex', 'more', '__init__.py')
 
 
-@pytest.mark.skipif(NOGIL_BUILD and CYTHON_VERSION < (3, 1, 0),
+@pytest.mark.skipif(FREE_THREADED_BUILD and CYTHON_VERSION < (3, 1, 0),
                     reason='Cython version too old, no free-threaded CPython support')
 def test_mesonpy_meta_finder(package_complex, tmp_path):
     # build a package in a temporary directory
@@ -209,7 +209,7 @@ def test_editble_reentrant(venv, editable_imports_itself_during_build):
         path.write_text(code)
 
 
-@pytest.mark.skipif(NOGIL_BUILD and CYTHON_VERSION < (3, 1, 0),
+@pytest.mark.skipif(FREE_THREADED_BUILD and CYTHON_VERSION < (3, 1, 0),
                     reason='Cython version too old, no free-threaded CPython support')
 def test_editable_pkgutils_walk_packages(package_complex, tmp_path):
     # build a package in a temporary directory
@@ -295,7 +295,7 @@ def test_editable_rebuild(package_purelib_and_platlib, tmp_path, verbose, args):
             sys.modules.pop('pure', None)
 
 
-@pytest.mark.skipif(NOGIL_BUILD and CYTHON_VERSION < (3, 1, 0),
+@pytest.mark.skipif(FREE_THREADED_BUILD and CYTHON_VERSION < (3, 1, 0),
                     reason='Cython version too old, no free-threaded CPython support')
 def test_editable_verbose(venv, package_complex, editable_complex, monkeypatch):
     monkeypatch.setenv('MESONPY_EDITABLE_VERBOSE', '1')

tests/test_tags.py

@@ -18,8 +18,7 @@
 import mesonpy
 import mesonpy._tags
 
-from .conftest import adjust_packaging_platform_tag
-from .test_wheel import NOGIL_BUILD
+from .conftest import FREE_THREADED_BUILD, adjust_packaging_platform_tag
 
 
 # Test against the wheel tag generated by packaging module.
@@ -136,7 +135,7 @@ def test_tag_stable_abi():
     # PyPy does not support the stable ABI.
     if '__pypy__' in sys.builtin_module_names:
         abi = ABI
-    elif NOGIL_BUILD and sys.version_info >= (3, 15):
+    elif FREE_THREADED_BUILD and sys.version_info >= (3, 15):
         abi = 'abi3.abi3t'
     else:
         abi = 'abi3'

tests/test_wheel.py

@@ -16,16 +16,9 @@
 
 import mesonpy
 
-from .conftest import MESON_VERSION, adjust_packaging_platform_tag, metadata
+from .conftest import EXT_SUFFIX, FREE_THREADED_BUILD, MESON_VERSION, adjust_packaging_platform_tag, metadata
 
 
-EXT_SUFFIX = sysconfig.get_config_var('EXT_SUFFIX')
-if sys.version_info <= (3, 8, 7):
-    if MESON_VERSION >= (0, 99):
-        # Fixed in Meson 1.0, see https://github.com/mesonbuild/meson/pull/10961.
-        from distutils.sysconfig import get_config_var
-        EXT_SUFFIX = get_config_var('EXT_SUFFIX')
-
 if sys.platform in {'win32', 'cygwin'}:
     EXT_IMP_SUFFIX = re.sub(r'.(pyd|dll)$', '.lib' if shutil.which('cl.exe') else '.dll.a', EXT_SUFFIX)
 
@@ -35,8 +28,6 @@
     'win32': '.dll',
 }.get(sys.platform, '.so')
 
-NOGIL_BUILD = bool(sysconfig.get_config_var('Py_GIL_DISABLED'))
-
 # Test against the wheel tag generated by packaging module.
 tag = next(packaging.tags.sys_tags())
 ABI = tag.abi
@@ -321,7 +312,7 @@ def test_skip_subprojects(package_subproject, tmp_path, arg):
 
 # Requires Meson 1.3.0, see https://github.com/mesonbuild/meson/pull/11745.
 @pytest.mark.skipif(MESON_VERSION < (1, 2, 99), reason='meson too old')
-@pytest.mark.skipif(NOGIL_BUILD, reason='Free-threaded CPython does not support the limited API')
+@pytest.mark.skipif(FREE_THREADED_BUILD, reason='Free-threaded CPython does not support the limited API')
 @pytest.mark.xfail('__pypy__' in sys.builtin_module_names, reason='PyPy does not support the abi3 platform tag for wheels')
 def test_limited_api(wheel_limited_api):
     artifact = wheel.wheelfile.WheelFile(wheel_limited_api)
@@ -333,7 +324,7 @@ def test_limited_api(wheel_limited_api):
 
 # Requires Meson 1.3.0, see https://github.com/mesonbuild/meson/pull/11745.
 @pytest.mark.skipif(MESON_VERSION < (1, 2, 99), reason='meson too old')
-@pytest.mark.skipif(NOGIL_BUILD, reason='Free-threaded CPython does not support the limited API')
+@pytest.mark.skipif(FREE_THREADED_BUILD, reason='Free-threaded CPython does not support the limited API')
 @pytest.mark.xfail('__pypy__' in sys.builtin_module_names, reason='PyPy does not use special modules suffix for stable ABI')
 def test_limited_api_bad(package_limited_api, tmp_path):
     with pytest.raises(mesonpy.BuildError, match='The package declares compatibility with Python limited API but '):
@@ -421,5 +412,5 @@ def test_limited_api_free_threaded(wheel_limited_api_free_threaded):
     artifact = wheel.wheelfile.WheelFile(wheel_limited_api_free_threaded)
     name = artifact.parsed_filename
     assert name.group('pyver') == INTERPRETER
-    assert name.group('abi') == 'abi3.abi3t' if NOGIL_BUILD else 'abi3'
+    assert name.group('abi') == 'abi3.abi3t' if FREE_THREADED_BUILD else 'abi3'
     assert name.group('plat') == PLATFORM