def test_fuzz_lexical_search_all_characters(self, query: str):
        """
        Fuzz test lexical query parsing invariants
        Testing random strings to ensure no error is raised in lexical search.
        Ensure no error is raised.
        """
        for index in [self.unstructured_default_text_index, self.structured_default_text_index]:
            with self.subTest(index=index.type):
                res = tensor_search.search(
                    text=query, config=self.config, index_name=index.name,
                    search_method=SearchMethod.LEXICAL
                )
                self.assertIn("hits", res)

        Fuzz test lexical query parsing invariants
        Testing random strings to ensure no error is raised in lexical search.
        Ensure no error is raised.
        
tests/integ_tests/tensor_search/integ_tests/test_search_combined.py