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"""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 = len(dep.files.to_list())
asserts.equals(
env,
0,
files,
"Expected that target '{}' does not provide files, got {}".format(
dep.label,
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],
),
},
)
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