Incorrect filesystem test in libcxx

The test set_to_empty here https://github.com/llvm/llvm-project/blob/a414c22f32fa08ab91d9d6fe06d6949b526bedb3/libcxx/test/std/input.output/filesystems/fs.op.funcs/fs.op.current_path/current_path.pass.cpp#L94 checks if an error is returned for empty path as input to current path. Current path might use chdir and as per posix the behavior for this case is implementation specific. One way to handle empty string to chdir is ignoring the request. The test failed on a proprietary target os that handles empty string input in the latter manner.
Is there a reason for why an error is expected in the test case?
If not, can we change this?

Start with libcxx/test/std/input.output/filesystems/fs.op.funcs/fs.op.current_path/current_path.pass.cpp, especially the set_to_empty test around line 94. Check the POSIX behavior described for an empty path and the existing test expectation; done means the test no longer rejects a conforming implementation-specific behavior.

Written by the indexing model from the issue text.