gh-92670: Skip test_copyfile_nonexistent_dir test on AIX

Lib/test/test_shutil.py

@@ -1294,6 +1294,10 @@ def test_copyfile_same_file(self):
         self.assertEqual(read_file(src_file), 'foo')
 
     @unittest.skipIf(MACOS or SOLARIS or _winapi, 'On MACOS, Solaris and Windows the errors are not confusing (though different)')
+    # gh-92670: The test uses a trailing slash to force the OS consider
+    # the path as a directory, but on AIX the trailing slash has no effect
+    # and is considered as a file.
+    @unittest.skipIf(AIX, 'Not valid on AIX, see gh-92670')
     def test_copyfile_nonexistent_dir(self):
         # Issue 43219
         src_dir = self.mkdtemp()

Misc/NEWS.d/next/Tests/2022-05-12-05-51-06.gh-issue-92670.7L43Z_.rst

@@ -0,0 +1,3 @@
+Skip ``test_shutil.TestCopy.test_copyfile_nonexistent_dir`` test on AIX as the test uses a trailing
+slash to force the OS consider the path as a directory, but on AIX the
+trailing slash has no effect and is considered as a file.