def test_measure_snapshot_coverage( # pylint: disable=too-many-locals
self, mocked_is_cycle_unchanged, db, experiment, tmp_path):
"""Integration test for measure_snapshot_coverage."""
# WORK is set by experiment to a directory that only makes sense in a
# fakefs. A directory containing necessary llvm tools is also added to
# PATH.
llvm_tools_path = get_test_data_path('llvm_tools')
os.environ["PATH"] += os.pathsep + llvm_tools_path
os.environ['WORK'] = str(tmp_path)
mocked_is_cycle_unchanged.return_value = False
# Set up the coverage binary.
benchmark = 'freetype2-2017'
coverage_binary_src = get_test_data_path(
'test_measure_snapshot_coverage', benchmark + '-coverage')
benchmark_cov_binary_dir = os.path.join(
build_utils.get_coverage_binaries_dir(), benchmark)
os.makedirs(benchmark_cov_binary_dir)
coverage_binary_dst_dir = os.path.join(benchmark_cov_binary_dir,
'ftfuzzer')
shutil.copy(coverage_binary_src, coverage_binary_dst_dir)
# Set up entities in database so that the snapshot can be created.
experiment = models.Experiment(name=os.environ['EXPERIMENT'])
db_utils.add_all([experiment])
trial = models.Trial(fuzzer=FUZZER,
benchmark=benchmark,
experiment=os.environ['EXPERIMENT'])
db_utils.add_all([trial])
snapshot_measurer = measurer.SnapshotMeasurer(trial.fuzzer,
trial.benchmark,
trial.id,
SNAPSHOT_LOGGER)
# Set up the snapshot archive.
cycle = 1
archive = get_test_data_path('test_measure_snapshot_coverage',
'corpus-archive-%04d.tar.gz' % cycle)
corpus_dir = os.path.join(snapshot_measurer.trial_dir, 'corpus')
os.makedirs(corpus_dir)
shutil.copy(archive, corpus_dir)
with mock.patch('common.filestore_utils.cp') as mocked_cp:
mocked_cp.return_value = new_process.ProcessResult(0, '', False)
# TODO(metzman): Create a system for using actual buckets in
# integration tests.
snapshot = measurer.measure_snapshot_coverage(
snapshot_measurer.fuzzer, snapshot_measurer.benchmark,
snapshot_measurer.trial_num, cycle)
assert snapshot
assert snapshot.time == cycle * experiment_utils.get_snapshot_seconds()
assert snapshot.edges_covered == 13178
def test_measure_snapshot_coverage( # pylint: disable=too-many-locals
self, mocked_is_cycle_unchanged, create_measurer, db, experiment):
"""Integration test for measure_snapshot_coverage."""
mocked_is_cycle_unchanged.return_value = False
# Set up the coverage binary.
benchmark = 'freetype2-2017'
coverage_binary_src = get_test_data_path(
'test_measure_snapshot_coverage', benchmark + '-coverage')
benchmark_cov_binary_dir = os.path.join(
build_utils.get_coverage_binaries_dir(), benchmark)
os.makedirs(benchmark_cov_binary_dir)
coverage_binary_dst_dir = os.path.join(benchmark_cov_binary_dir,
'fuzz-target')
shutil.copy(coverage_binary_src, coverage_binary_dst_dir)
# Set up entities in database so that the snapshot can be created.
experiment = models.Experiment(name=os.environ['EXPERIMENT'])
db_utils.add_all([experiment])
trial = models.Trial(fuzzer=FUZZER,
benchmark=benchmark,
experiment=os.environ['EXPERIMENT'])
db_utils.add_all([trial])
snapshot_measurer = create_measurer(trial.fuzzer, trial.benchmark,
trial.id)
# Set up the snapshot archive.
cycle = 1
archive = get_test_data_path('test_measure_snapshot_coverage',
'corpus-archive-%04d.tar.gz' % cycle)
corpus_dir = os.path.join(snapshot_measurer.trial_dir, 'corpus')
os.makedirs(corpus_dir)
shutil.copy(archive, corpus_dir)
with mock.patch('common.gsutil.cp') as mocked_cp:
mocked_cp.return_value = new_process.ProcessResult(0, '', False)
# TODO(metzman): Create a system for using actual buckets in
# integration tests.
snapshot = measurer.measure_snapshot_coverage(
snapshot_measurer.fuzzer, snapshot_measurer.benchmark,
snapshot_measurer.trial_num, cycle)
assert snapshot
assert snapshot.time == cycle * experiment_utils.get_snapshot_seconds()
assert snapshot.edges_covered == 3798