    def test_command_lsS3_relative_path(self):
        """
        target: test command 'lsS3' relative path
        method: use lsS3 to list files in S3 relative path without bucket_name
        expected: get correct files
        """
        res = os.popen("towhee lsS3 -p test/test.pt").read()
        assert "test.pt" in res
        return True
target: test command 'lsS3' relative path
method: use lsS3 to list files in S3 relative path without bucket_name
expected: get correct files
tests/testcases/test_command.py