TST: simplify and fix test

tests/test_wheel.py

@@ -34,6 +34,13 @@
 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)
 
+LIB_SUFFIX = {
+    'cygwin': '.dll',
+    'darwin': '.dylib',
+    'linux': '.so',
+    'win32': '.dll',
+}[sys.platform]
+
 # Test against the wheel tag generated by packaging module.
 tag = next(packaging.tags.sys_tags())
 ABI = tag.abi
@@ -137,16 +144,14 @@ def test_contents_license_file(wheel_license_file):
 def test_contents(package_library, wheel_library):
     artifact = wheel.wheelfile.WheelFile(wheel_library)
 
-    for name, regex in zip(sorted(wheel_contents(artifact)), [
-        re.escape('.library.mesonpy.libs/libexample.so'),
-        re.escape('library-1.0.0.data/headers/examplelib.h'),
-        re.escape('library-1.0.0.data/scripts/example'),
-        re.escape('library-1.0.0.dist-info/METADATA'),
-        re.escape('library-1.0.0.dist-info/RECORD'),
-        re.escape('library-1.0.0.dist-info/WHEEL'),
-        re.escape('library.libs/libexample.so'),
-    ]):
-        assert re.match(regex, name), f'{name!r} does not match {regex!r}'
+    assert wheel_contents(artifact) == {
+        f'.library.mesonpy.libs/libexample{LIB_SUFFIX}',
+        'library-1.0.0.data/headers/examplelib.h',
+        'library-1.0.0.data/scripts/example',
+        'library-1.0.0.dist-info/METADATA',
+        'library-1.0.0.dist-info/RECORD',
+        'library-1.0.0.dist-info/WHEEL',
+    }
 
 
 @pytest.mark.skipif(platform.system() not in {'Linux', 'Darwin'}, reason='Not supported on this platform')