6fa6d77e0b
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com> GitOrigin-RevId: ed84084a285fbfdb493480f5a5a6b633c703017f
68 lines
2.4 KiB
Python
68 lines
2.4 KiB
Python
"""The libfuzzertest.TestCase for C++ libfuzzer tests."""
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import datetime
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import os
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from typing import Optional
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from buildscripts.resmokelib import core, logging, utils
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from buildscripts.resmokelib.testing.testcases import interface
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class CPPLibfuzzerTestCase(interface.ProcessTestCase):
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"""A C++ libfuzzer test to execute."""
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REGISTERED_NAME = "cpp_libfuzzer_test"
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DEFAULT_TIMEOUT = datetime.timedelta(hours=1)
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def __init__(
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self,
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logger: logging.Logger,
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program_executables: list[str],
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program_options: Optional[dict] = None,
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corpus_directory_stem="corpora",
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**kwargs,
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):
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"""Initialize the CPPLibfuzzerTestCase with the executable to run."""
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assert len(program_executables) == 1
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interface.ProcessTestCase.__init__(
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self, logger, "C++ libfuzzer test", program_executables[0], **kwargs
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)
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self.program_executable = program_executables[0]
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self.program_options = utils.default_if_none(program_options, {}).copy()
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# disable writing of profraw during fuzzing unless specifically asked for
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self.program_options.setdefault("env_vars", {})
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self.program_options["env_vars"].setdefault("LLVM_PROFILE_FILE", "/dev/null")
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self.corpus_directory = corpus_directory_stem
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self.seed_directory = os.path.join(
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self.corpus_directory, self.short_name(), "LLVMFuzzer.TestOneInput", "seeds"
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)
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old_corpus_dir = f"{corpus_directory_stem}/corpus-{self.short_name()}"
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if os.path.exists(old_corpus_dir):
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os.makedirs(self.seed_directory, exist_ok=True)
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os.rename(old_corpus_dir, self.seed_directory)
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if not os.path.exists(self.seed_directory):
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self.seed_directory = ""
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os.makedirs(self.corpus_directory, exist_ok=True)
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interface.append_process_tracking_options(self.program_options, self._id)
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def _make_process(self):
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default_args = [
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self.program_executable,
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"--fuzz_for=1h",
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f"--corpus_database={self.corpus_directory}",
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f"--llvm_fuzzer_wrapper_corpus_dir={self.seed_directory}",
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]
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# Merge test and fixture environment variables into program_options
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program_options = self.program_options.copy()
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self._merge_environment_variables(program_options)
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return core.programs.make_process(self.logger, default_args, **program_options)
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