Fix up the test

Author: stefanor

Lib/test/test_importlib/extension/test_finder.py

@@ -69,19 +69,21 @@ def test_abi3_extension_suffixes(self):
             pass
         else:
             if Py_GIL_DISABLED:
-                self.assertFalse(any(".abi3" in suffix) for suffix in suffixes)
+                self.assertNotIn(".abi3.so", suffixes)
             else:
                 self.assertIn(".abi3.so", suffixes)
             self.assertIn(".abi3t.so", suffixes)
 
     @unittest.skipIf(
-        not sysconfig.get_config_var("SOABI_PLATFORM").strip('"'),
+        not (sysconfig.get_config_var("SOABI_PLATFORM") or "").strip('"'),
         "Linux-only test"
     )
     def test_multiarch_abi3_extension_suffixes(self):
         suffixes = self.machinery.EXTENSION_SUFFIXES
         platform = sysconfig.get_config_var("SOABI_PLATFORM").strip('"')
         if Py_GIL_DISABLED:
+            self.assertNotIn(f".abi3-{platform}.so", suffixes)
+        else:
             self.assertIn(f".abi3-{platform}.so", suffixes)
         self.assertIn(f".abi3t-{platform}.so", suffixes)