| """Shared private utilities.""" |
| |
| def _do_nothing_impl(ctx): |
| _ = ctx # @unused |
| return [] |
| |
| do_nothing = rule(implementation = _do_nothing_impl) |
| |
| def get_test_name_from_function(func): |
| """Derives a suitable test name from a function. |
| |
| This can be used for better test feedback. |
| |
| Args: |
| func: (callable) A test implementation or setup function. |
| |
| Returns: |
| (str) The name of the given function, suitable as a test name. |
| """ |
| |
| # Starlark currently stringifies a function as "<function NAME>", so we use |
| # that knowledge to parse the "NAME" portion out. If this behavior ever |
| # changes, we'll need to update this. |
| # TODO(bazel-team): Expose a ._name field on functions to avoid this. |
| func_name = str(func) |
| func_name = func_name.partition("<function ")[-1] |
| func_name = func_name.rpartition(">")[0] |
| func_name = func_name.partition(" ")[0] |
| |
| # Strip leading/trailing underscores so that test functions can |
| # have private names. This better allows unused tests to be flagged by |
| # buildifier (indicating a bug or code to delete) |
| return func_name.strip("_") |
| |
| get_function_name = get_test_name_from_function |
