code: def test_rel_path():
      assert rel_path("", "foo.bar.baz") == "foo.bar.baz"
      assert rel_path("foo", "foo.bar.baz") == "bar.baz"
      assert rel_path("foo.bar", "foo.bar.baz") == "baz"
      assert rel_path("foo.bar.baz", "foo.bar.baz") == ""
      assert rel_path("", "") == ""
  
imports: import pytest
  from sacred.utils import PATHCHANGE, convert_to_nested_dict, get_by_dotted_path, is_prefix, iter_prefixes, iterate_flattened, iterate_flattened_separately, join_paths, recursive_update, set_by_dotted_path, get_inheritors, convert_camel_case_to_snake_case, apply_backspaces_and_linefeeds, module_exists, module_is_in_cache, get_package_version, parse_version, rel_path
label_desc: Use image node_id 21 for calling a global function with example usage: test_rel_path() without return types