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60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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# Exceptions. See /LICENSE for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""Rules for building fuzz tests."""
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load("@rules_cc//cc:defs.bzl", "cc_test")
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def cc_fuzz_test(
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name,
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corpus,
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args = [],
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data = [],
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features = [],
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tags = [],
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deps = [],
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**kwargs):
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"""Macro for C++ fuzzing test.
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In order to run tests on a single file, run the fuzzer binary under
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bazel-bin directly. That will avoid the args being passed by Bazel.
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Args:
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name: The main fuzz test rule name.
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corpus: List of files to use as a fuzzing corpus.
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args: Will have the locations of the corpus files added and passed down
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to the fuzz test.
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data: Will have the corpus added and passed down to the fuzz test.
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features: Will have the "fuzzer" feature added and passed down to the
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fuzz test.
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tags: Will have "fuzz_test" added and passed down to the fuzz test.
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deps: Will have "@llvm-project//compiler-rt:FuzzerMain" added and passed
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down to the fuzz test.
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**kwargs: Remaining arguments passed down to the fuzz test.
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"""
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# Add relevant tag and feature if necessary.
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if "fuzz_test" not in tags:
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tags = tags + ["fuzz_test"]
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if "fuzzer" not in features:
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features = features + ["fuzzer"]
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if "@llvm-project//compiler-rt:FuzzerMain" not in deps:
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deps = deps + ["@llvm-project//compiler-rt:FuzzerMain"]
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# Append the corpus files to the test arguments. When run on a list of
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# files rather than a directory, libFuzzer-based fuzzers will perform a
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# regression test against the corpus.
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data = data + corpus
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args = args + ["$(location %s)" % file for file in corpus]
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cc_test(
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name = name,
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args = args,
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data = data,
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features = features,
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tags = tags,
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deps = deps,
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**kwargs
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)
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