| """Contains a unittest to verify that `cc_proto_library` does not generate code for blacklisted `.proto` sources (i.e. WKPs).""" | 
 |  | 
 | load("@bazel_skylib//lib:unittest.bzl", "asserts", "unittest") | 
 |  | 
 | def _cc_proto_blacklist_test_impl(ctx): | 
 |     """Verifies that there are no C++ compile actions for Well-Known-Protos. | 
 |  | 
 |     Args: | 
 |       ctx: The rule context. | 
 |  | 
 |     Returns: A (not further specified) sequence of providers. | 
 |     """ | 
 |  | 
 |     env = unittest.begin(ctx) | 
 |  | 
 |     for dep in ctx.attr.deps: | 
 |         files = dep.files.to_list() | 
 |         asserts.equals( | 
 |             env, | 
 |             [], | 
 |             files, | 
 |             "Expected that target '{}' does not provide files, got {}".format( | 
 |                 dep.label, | 
 |                 len(files), | 
 |             ), | 
 |         ) | 
 |  | 
 |     return unittest.end(env) | 
 |  | 
 | cc_proto_blacklist_test = unittest.make( | 
 |     impl = _cc_proto_blacklist_test_impl, | 
 |     attrs = { | 
 |         "deps": attr.label_list( | 
 |             mandatory = True, | 
 |             providers = [CcInfo], | 
 |         ), | 
 |     }, | 
 | ) |