def test_last_line_flushed_when_not_overwriting(self):
pr = Printer(self.print_, False, 80)
pr.update('foo\nbar')
pr.update('baz')
pr.flush()
self.assertEqual(self.out,
['foo\nbar',
'\n',
'baz',
'\n'])
def test_overwrite(self):
pr = Printer(self.print_, True, 80)
pr.update('hello world')
pr.update('goodbye world')
pr.flush()
self.assertEqual(self.out,
['hello world',
'\r \r',
'goodbye world',
'\n'])
class Runner(object):
def __init__(self, host=None):
self.args = None
self.classifier = None
self.cov = None
self.context = None
self.coverage_source = None
self.host = host or Host()
self.loader = unittest.loader.TestLoader()
self.printer = None
self.setup_fn = None
self.stats = None
self.teardown_fn = None
self.top_level_dir = None
self.top_level_dirs = []
self.win_multiprocessing = WinMultiprocessing.spawn
self.final_responses = []
self.has_expectations = False
self.expectations = None
# initialize self.args to the defaults.
parser = ArgumentParser(self.host)
self.parse_args(parser, [])
def main(self, argv=None, **defaults):
parser = ArgumentParser(self.host)
self.parse_args(parser, argv, **defaults)
if parser.exit_status is not None:
return parser.exit_status
try:
ret, _, _ = self.run()
return ret
except KeyboardInterrupt:
self.print_("interrupted, exiting", stream=self.host.stderr)
return 130
def parse_args(self, parser, argv, **defaults):
for attrname in defaults:
if not hasattr(self.args, attrname):
parser.error("Unknown default argument name '%s'" % attrname,
bailout=False)
return
parser.set_defaults(**defaults)
self.args = parser.parse_args(args=argv)
if parser.exit_status is not None:
return
def print_(self, msg='', end='\n', stream=None):
self.host.print_(msg, end, stream=stream)
def run(self, test_set=None):
ret = 0
h = self.host
if self.args.version:
self.print_(VERSION)
return ret, None, None
should_spawn = self._check_win_multiprocessing()
if should_spawn:
return self._spawn(test_set)
ret = self._set_up_runner()
if ret:
return ret, None, None
find_start = h.time()
if self.cov: # pragma: no cover
self.cov.erase()
self.cov.start()
full_results = None
result_set = ResultSet()
if not test_set:
ret, test_set = self.find_tests(self.args)
find_end = h.time()
if not ret:
self.stats.total = (len(test_set.parallel_tests) +
len(test_set.isolated_tests) +
len(test_set.tests_to_skip)) * self.args.repeat
all_tests = [
ti.name for ti in _sort_inputs(test_set.parallel_tests +
test_set.isolated_tests +
test_set.tests_to_skip)
]
if self.args.test_name_prefix:
self.args.metadata.append('test_name_prefix=' +
self.args.test_name_prefix)
if self.args.list_only:
self.print_('\n'.join(all_tests))
else:
for _ in range(self.args.repeat):
current_ret, full_results = self._run_tests(
result_set, test_set.copy(), all_tests)
ret = ret or current_ret
if self.cov: # pragma: no cover
self.cov.stop()
self.cov.save()
test_end = h.time()
trace = self._trace_from_results(result_set)
if full_results:
self._summarize(full_results)
self._write(self.args.write_full_results_to, full_results)
upload_ret = self._upload(full_results)
if not ret:
ret = upload_ret
reporting_end = h.time()
self._add_trace_event(trace, 'run', find_start, reporting_end)
self._add_trace_event(trace, 'discovery', find_start, find_end)
self._add_trace_event(trace, 'testing', find_end, test_end)
self._add_trace_event(trace, 'reporting', test_end, reporting_end)
self._write(self.args.write_trace_to, trace)
self.report_coverage()
else:
upload_ret = 0
return ret, full_results, trace
def _check_win_multiprocessing(self):
wmp = self.win_multiprocessing
ignore, importable, spawn = WinMultiprocessing.values
if wmp not in WinMultiprocessing.values:
raise ValueError('illegal value %s for win_multiprocessing' % wmp)
h = self.host
if wmp == ignore and h.platform == 'win32': # pragma: win32
raise ValueError('Cannot use WinMultiprocessing.ignore for '
'win_multiprocessing when actually running '
'on Windows.')
if wmp == ignore or self.args.jobs == 1:
return False
if wmp == importable:
if self._main_is_importable():
return False
raise ValueError('The __main__ module (%s) ' # pragma: no cover
'may not be importable' %
sys.modules['__main__'].__file__)
assert wmp == spawn
return True
def _main_is_importable(self): # pragma: untested
path = sys.modules['__main__'].__file__
if not path:
return False
if path.endswith('.pyc'):
path = path[:-1]
if not path.endswith('.py'):
return False
if path.endswith('__main__.py'):
# main modules are not directly importable.
return False
path = self.host.realpath(path)
for d in sys.path:
if path.startswith(self.host.realpath(d)):
return True
return False # pragma: no cover
def _spawn(self, test_set):
# TODO: Handle picklable hooks, rather than requiring them to be None.
assert self.classifier is None
assert self.context is None
assert self.setup_fn is None
assert self.teardown_fn is None
assert test_set is None
h = self.host
if self.args.write_trace_to: # pragma: untested
should_delete_trace = False
else:
should_delete_trace = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_trace_to = fp.name
if self.args.write_full_results_to: # pragma: untested
should_delete_results = False
else:
should_delete_results = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_full_results_to = fp.name
argv = ArgumentParser(h).argv_from_args(self.args)
ret = h.call_inline([h.python_interpreter, path_to_file] + argv)
trace = self._read_and_delete(self.args.write_trace_to,
should_delete_trace)
full_results = self._read_and_delete(self.args.write_full_results_to,
should_delete_results)
return ret, full_results, trace
def _set_up_runner(self):
h = self.host
args = self.args
self.stats = Stats(args.status_format, h.time, args.jobs)
self.printer = Printer(self.print_, args.overwrite,
args.terminal_width)
if self.args.top_level_dirs and self.args.top_level_dir:
self.print_(
'Cannot specify both --top-level-dir and --top-level-dirs',
stream=h.stderr)
return 1
self.top_level_dirs = args.top_level_dirs
if not self.top_level_dirs and args.top_level_dir:
self.top_level_dirs = [args.top_level_dir]
if not self.top_level_dirs:
for test in [t for t in args.tests if h.exists(t)]:
if h.isdir(test):
top_dir = test
else:
top_dir = h.dirname(test)
while h.exists(top_dir, '__init__.py'):
top_dir = h.dirname(top_dir)
top_dir = h.realpath(top_dir)
if not top_dir in self.top_level_dirs:
self.top_level_dirs.append(top_dir)
if not self.top_level_dirs:
top_dir = h.getcwd()
while h.exists(top_dir, '__init__.py'):
top_dir = h.dirname(top_dir)
top_dir = h.realpath(top_dir)
self.top_level_dirs.append(top_dir)
if not self.top_level_dir and self.top_level_dirs:
self.top_level_dir = self.top_level_dirs[0]
for path in self.top_level_dirs:
h.add_to_path(path)
for path in args.path:
h.add_to_path(path)
if args.coverage: # pragma: no cover
try:
import coverage
except ImportError:
self.print_('Error: coverage is not installed.')
return 1
source = self.args.coverage_source
if not source:
source = self.top_level_dirs + self.args.path
self.coverage_source = source
self.cov = coverage.coverage(source=self.coverage_source,
data_suffix=True)
self.cov.erase()
if args.expectations_files:
ret = self.parse_expectations()
if ret:
return ret
elif args.tags:
self.print_('Error: tags require expectations files.')
return 1
return 0
def parse_expectations(self):
args = self.args
if len(args.expectations_files) != 1:
# TODO(crbug.com/835690): Fix this.
self.print_(
'Only a single expectation file is currently supported',
stream=self.host.stderr)
return 1
contents = self.host.read_text_file(args.expectations_files[0])
expectations = TestExpectations(set(args.tags))
err, msg = expectations.parse_tagged_list(contents)
if err:
self.print_(msg, stream=self.host.stderr)
return err
self.has_expectations = True
self.expectations = expectations
def find_tests(self, args):
test_set = TestSet(self.args.test_name_prefix)
orig_skip = unittest.skip
orig_skip_if = unittest.skipIf
if args.all:
unittest.skip = lambda reason: lambda x: x
unittest.skipIf = lambda condition, reason: lambda x: x
try:
names = self._name_list_from_args(args)
classifier = self.classifier or self.default_classifier
for name in names:
try:
self._add_tests_to_set(test_set, args.suffixes,
self.top_level_dirs, classifier,
name)
except (AttributeError, ImportError, SyntaxError) as e:
ex_str = traceback.format_exc()
self.print_('Failed to load "%s" in find_tests: %s' %
(name, e))
self.print_(' %s' % '\n '.join(ex_str.splitlines()))
self.print_(ex_str)
return 1, None
except _AddTestsError as e:
self.print_(str(e))
return 1, None
# TODO: Add support for discovering setupProcess/teardownProcess?
shard_index = args.shard_index
total_shards = args.total_shards
assert total_shards >= 1
assert shard_index >= 0 and shard_index < total_shards, (
'shard_index (%d) must be >= 0 and < total_shards (%d)' %
(shard_index, total_shards))
test_set.parallel_tests = _sort_inputs(
test_set.parallel_tests)[shard_index::total_shards]
test_set.isolated_tests = _sort_inputs(
test_set.isolated_tests)[shard_index::total_shards]
test_set.tests_to_skip = _sort_inputs(
test_set.tests_to_skip)[shard_index::total_shards]
return 0, test_set
finally:
unittest.skip = orig_skip
unittest.skipIf = orig_skip_if
def _name_list_from_args(self, args):
if args.tests:
names = args.tests
elif args.file_list:
if args.file_list == '-':
s = self.host.stdin.read()
else:
s = self.host.read_text_file(args.file_list)
names = [line.strip() for line in s.splitlines()]
else:
names = self.top_level_dirs
return names
def _add_tests_to_set(self, test_set, suffixes, top_level_dirs, classifier,
name):
h = self.host
loader = self.loader
add_tests = _test_adder(test_set, classifier)
found = set()
for d in top_level_dirs:
if h.isfile(name):
rpath = h.relpath(name, d)
if rpath.startswith('..'):
continue
if rpath.endswith('.py'):
rpath = rpath[:-3]
module = rpath.replace(h.sep, '.')
if module not in found:
found.add(module)
add_tests(loader.loadTestsFromName(module))
elif h.isdir(name):
rpath = h.relpath(name, d)
if rpath.startswith('..'):
continue
for suffix in suffixes:
if not name in found:
found.add(name + '/' + suffix)
add_tests(loader.discover(name, suffix, d))
else:
possible_dir = name.replace('.', h.sep)
if h.isdir(d, possible_dir):
for suffix in suffixes:
path = h.join(d, possible_dir)
if not path in found:
found.add(path + '/' + suffix)
suite = loader.discover(path, suffix, d)
add_tests(suite)
elif not name in found:
found.add(name)
add_tests(
loader.loadTestsFromName(self.args.test_name_prefix +
name))
# pylint: disable=no-member
if hasattr(loader, 'errors') and loader.errors: # pragma: python3
# In Python3's version of unittest, loader failures get converted
# into failed test cases, rather than raising exceptions. However,
# the errors also get recorded so you can err out immediately.
raise ImportError(loader.errors)
def _run_tests(self, result_set, test_set, all_tests):
h = self.host
self.last_runs_retry_on_failure_tests = set()
def get_tests_to_retry(results):
# If the --retry-only-retry-on-failure-tests command line argument
# is passed , then a set of test failures with the RetryOnFailure
# expectation from the last run of tests will be returned. The
# self.last_runs_retry_on_failure_tests will be set to an empty set
# for the next run of tests. Otherwise all regressions from the
# last run will be returned.
if self.args.retry_only_retry_on_failure_tests:
ret = self.last_runs_retry_on_failure_tests.copy()
self.last_runs_retry_on_failure_tests = set()
return ret
else:
return json_results.regressions(results)
self._run_one_set(self.stats, result_set, test_set)
tests_to_retry = sorted(get_tests_to_retry(result_set))
retry_limit = self.args.retry_limit
while retry_limit and tests_to_retry:
if retry_limit == self.args.retry_limit:
self.flush()
self.args.overwrite = False
self.printer.should_overwrite = False
self.args.verbose = min(self.args.verbose, 1)
self.print_('')
self.print_('Retrying failed tests (attempt #%d of %d)...' %
(self.args.retry_limit - retry_limit + 1,
self.args.retry_limit))
self.print_('')
stats = Stats(self.args.status_format, h.time, 1)
stats.total = len(tests_to_retry)
test_set = TestSet(self.args.test_name_prefix)
for name in tests_to_retry:
test_set.add_test_to_run_isolated(
list(
self.loader.loadTestsFromName(
self.args.test_name_prefix + name))[0])
tests_to_retry = test_set
retry_set = ResultSet()
self._run_one_set(stats, retry_set, tests_to_retry)
result_set.results.extend(retry_set.results)
tests_to_retry = get_tests_to_retry(retry_set)
retry_limit -= 1
if retry_limit != self.args.retry_limit:
self.print_('')
full_results = json_results.make_full_results(self.args.metadata,
int(h.time()), all_tests,
result_set)
return (json_results.exit_code_from_full_results(full_results),
full_results)
def _run_one_set(self, stats, result_set, test_set):
self._skip_tests(stats, result_set, test_set.tests_to_skip)
self._run_list(stats, result_set, test_set.parallel_tests,
self.args.jobs)
self._run_list(stats, result_set, test_set.isolated_tests, 1)
def _skip_tests(self, stats, result_set, tests_to_skip):
for test_input in tests_to_skip:
last = self.host.time()
stats.started += 1
self._print_test_started(stats, test_input)
now = self.host.time()
result = Result(test_input.name,
actual=ResultType.Skip,
started=last,
took=(now - last),
worker=0,
expected=[ResultType.Skip],
out=test_input.msg)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
def _run_list(self, stats, result_set, test_inputs, jobs):
h = self.host
running_jobs = set()
jobs = min(len(test_inputs), jobs)
if not jobs:
return
child = _Child(self)
pool = make_pool(h, jobs, _run_one_test, child, _setup_process,
_teardown_process)
try:
while test_inputs or running_jobs:
while test_inputs and (len(running_jobs) < jobs):
test_input = test_inputs.pop(0)
stats.started += 1
pool.send(test_input)
running_jobs.add(test_input.name)
self._print_test_started(stats, test_input)
result, should_retry_on_failure = pool.get()
if (self.args.retry_only_retry_on_failure_tests
and result.actual == ResultType.Failure
and should_retry_on_failure):
self.last_runs_retry_on_failure_tests.add(result.name)
running_jobs.remove(result.name)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
pool.close()
finally:
self.final_responses.extend(pool.join())
def _print_test_started(self, stats, test_input):
if self.args.quiet:
# Print nothing when --quiet was passed.
return
# If -vvv was passed, print when the test is queued to be run.
# We don't actually know when the test picked up to run, because
# that is handled by the child process (where we can't easily
# print things). Otherwise, only print when the test is started
# if we know we can overwrite the line, so that we do not
# get multiple lines of output as noise (in -vvv, we actually want
# the noise).
test_start_msg = stats.format() + test_input.name
if self.args.verbose > 2:
self.update(test_start_msg + ' queued', elide=False)
if self.args.overwrite:
self.update(test_start_msg, elide=(not self.args.verbose))
def _print_test_finished(self, stats, result):
stats.add_time()
assert result.actual in [
ResultType.Failure, ResultType.Skip, ResultType.Pass
]
if result.actual == ResultType.Failure:
result_str = ' failed'
elif result.actual == ResultType.Skip:
result_str = ' was skipped'
elif result.actual == ResultType.Pass:
result_str = ' passed'
if result.unexpected:
result_str += ' unexpectedly'
elif result.actual == ResultType.Failure:
result_str += ' as expected'
if self.args.timing:
timing_str = ' %.4fs' % result.took
else:
timing_str = ''
suffix = '%s%s' % (result_str, timing_str)
out = result.out
err = result.err
if result.code:
if out or err:
suffix += ':\n'
self.update(stats.format() + result.name + suffix, elide=False)
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
elif not self.args.quiet:
if self.args.verbose > 1 and (out or err):
suffix += ':\n'
self.update(stats.format() + result.name + suffix,
elide=(not self.args.verbose))
if self.args.verbose > 1:
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
if self.args.verbose:
self.flush()
def update(self, msg, elide):
self.printer.update(msg, elide)
def flush(self):
self.printer.flush()
def _summarize(self, full_results):
num_passes = json_results.num_passes(full_results)
num_failures = json_results.num_failures(full_results)
num_skips = json_results.num_skips(full_results)
if self.args.quiet and num_failures == 0:
return
if self.args.timing:
timing_clause = ' in %.1fs' % (self.host.time() -
self.stats.started_time)
else:
timing_clause = ''
self.update(
'%d test%s passed%s, %d skipped, %d failure%s.' %
(num_passes, '' if num_passes == 1 else 's', timing_clause,
num_skips, num_failures, '' if num_failures == 1 else 's'),
elide=False)
self.print_()
def _read_and_delete(self, path, delete):
h = self.host
obj = None
if h.exists(path):
contents = h.read_text_file(path)
if contents:
obj = json.loads(contents)
if delete:
h.remove(path)
return obj
def _write(self, path, obj):
if path:
self.host.write_text_file(path, json.dumps(obj, indent=2) + '\n')
def _upload(self, full_results):
h = self.host
if not self.args.test_results_server:
return 0
url, content_type, data = json_results.make_upload_request(
self.args.test_results_server, self.args.builder_name,
self.args.master_name, self.args.test_type, full_results)
try:
h.fetch(url, data, {'Content-Type': content_type})
return 0
except Exception as e:
h.print_('Uploading the JSON results raised "%s"' % str(e))
return 1
def report_coverage(self):
if self.args.coverage: # pragma: no cover
self.host.print_()
import coverage
cov = coverage.coverage(data_suffix=True)
cov.combine()
cov.report(show_missing=self.args.coverage_show_missing,
omit=self.args.coverage_omit)
if self.args.coverage_annotate:
cov.annotate(omit=self.args.coverage_omit)
def _add_trace_event(self, trace, name, start, end):
event = {
'name': name,
'ts': int((start - self.stats.started_time) * 1000000),
'dur': int((end - start) * 1000000),
'ph': 'X',
'pid': self.host.getpid(),
'tid': 0,
}
trace['traceEvents'].append(event)
def _trace_from_results(self, result_set):
trace = OrderedDict()
trace['traceEvents'] = []
trace['otherData'] = {}
for m in self.args.metadata:
k, v = m.split('=')
trace['otherData'][k] = v
for result in result_set.results:
started = int((result.started - self.stats.started_time) * 1000000)
took = int(result.took * 1000000)
event = OrderedDict()
event['name'] = result.name
event['dur'] = took
event['ts'] = started
event['ph'] = 'X' # "Complete" events
event['pid'] = result.pid
event['tid'] = result.worker
args = OrderedDict()
args['expected'] = sorted(str(r) for r in result.expected)
args['actual'] = str(result.actual)
args['out'] = result.out
args['err'] = result.err
args['code'] = result.code
args['unexpected'] = result.unexpected
args['flaky'] = result.flaky
event['args'] = args
trace['traceEvents'].append(event)
return trace
def expectations_for(self, test_case):
if self.has_expectations:
return self.expectations.expectations_for(
test_case.id()[len(self.args.test_name_prefix):])
else:
return (set([ResultType.Pass]), False)
def default_classifier(self, test_set, test):
if self.matches_filter(test):
if not self.args.all and self.should_skip(test):
test_set.add_test_to_skip(test, 'skipped by request')
elif self.should_isolate(test):
test_set.add_test_to_run_isolated(test)
else:
test_set.add_test_to_run_in_parallel(test)
def matches_filter(self, test_case):
_validate_test_starts_with_prefix(self.args.test_name_prefix,
test_case.id())
test_name = test_case.id()[len(self.args.test_name_prefix):]
return (not self.args.test_filter or any(
fnmatch.fnmatch(test_name, glob)
for glob in self.args.test_filter.split('::')))
def should_isolate(self, test_case):
_validate_test_starts_with_prefix(self.args.test_name_prefix,
test_case.id())
test_name = test_case.id()[len(self.args.test_name_prefix):]
return any(
fnmatch.fnmatch(test_name, glob) for glob in self.args.isolate)
def should_skip(self, test_case):
_validate_test_starts_with_prefix(self.args.test_name_prefix,
test_case.id())
test_name = test_case.id()[len(self.args.test_name_prefix):]
if self.has_expectations:
expected_results, _ = self.expectations.expectations_for(test_name)
else:
expected_results = set([ResultType.Pass])
return (ResultType.Skip in expected_results or any(
fnmatch.fnmatch(test_name, glob) for glob in self.args.skip))
class Runner(object):
def __init__(self, host=None):
self.args = None
self.classifier = None
self.cov = None
self.context = None
self.coverage_source = None
self.host = host or Host()
self.loader = unittest.loader.TestLoader()
self.printer = None
self.setup_fn = None
self.stats = None
self.teardown_fn = None
self.top_level_dir = None
self.win_multiprocessing = WinMultiprocessing.spawn
self.final_responses = []
# initialize self.args to the defaults.
parser = ArgumentParser(self.host)
self.parse_args(parser, [])
def main(self, argv=None, **defaults):
parser = ArgumentParser(self.host)
self.parse_args(parser, argv, **defaults)
if parser.exit_status is not None:
return parser.exit_status
try:
ret, _, _ = self.run()
return ret
except KeyboardInterrupt:
self.print_("interrupted, exiting", stream=self.host.stderr)
return 130
def parse_args(self, parser, argv, **defaults):
for attrname in defaults:
if not hasattr(self.args, attrname):
parser.error("Unknown default argument name '%s'" % attrname,
bailout=False)
return
parser.set_defaults(**defaults)
self.args = parser.parse_args(args=argv)
if parser.exit_status is not None:
return
def print_(self, msg='', end='\n', stream=None):
self.host.print_(msg, end, stream=stream)
def run(self, test_set=None):
ret = 0
h = self.host
if self.args.version:
self.print_(VERSION)
return ret, None, None
should_spawn = self._check_win_multiprocessing()
if should_spawn:
return self._spawn(test_set)
ret = self._set_up_runner()
if ret: # pragma: no cover
return ret, None, None
find_start = h.time()
if self.cov: # pragma: no cover
self.cov.erase()
self.cov.start()
full_results = None
result_set = ResultSet()
if not test_set:
ret, test_set = self.find_tests(self.args)
find_end = h.time()
if not ret:
ret, full_results = self._run_tests(result_set, test_set)
if self.cov: # pragma: no cover
self.cov.stop()
self.cov.save()
test_end = h.time()
trace = self._trace_from_results(result_set)
if full_results:
self._summarize(full_results)
self._write(self.args.write_full_results_to, full_results)
upload_ret = self._upload(full_results)
if not ret:
ret = upload_ret
reporting_end = h.time()
self._add_trace_event(trace, 'run', find_start, reporting_end)
self._add_trace_event(trace, 'discovery', find_start, find_end)
self._add_trace_event(trace, 'testing', find_end, test_end)
self._add_trace_event(trace, 'reporting', test_end, reporting_end)
self._write(self.args.write_trace_to, trace)
self.report_coverage()
else:
upload_ret = 0
return ret, full_results, trace
def _check_win_multiprocessing(self):
wmp = self.win_multiprocessing
ignore, importable, spawn = WinMultiprocessing.values
if wmp not in WinMultiprocessing.values:
raise ValueError('illegal value %s for win_multiprocessing' % wmp)
h = self.host
if wmp == ignore and h.platform == 'win32': # pragma: win32
raise ValueError('Cannot use WinMultiprocessing.ignore for '
'win_multiprocessing when actually running '
'on Windows.')
if wmp == ignore or self.args.jobs == 1:
return False
if wmp == importable:
if self._main_is_importable():
return False
raise ValueError('The __main__ module (%s) ' # pragma: no cover
'may not be importable' %
sys.modules['__main__'].__file__)
assert wmp == spawn
return True
def _main_is_importable(self): # pragma: untested
path = sys.modules['__main__'].__file__
if not path:
return False
if path.endswith('.pyc'):
path = path[:-1]
if not path.endswith('.py'):
return False
if path.endswith('__main__.py'):
# main modules are not directly importable.
return False
path = self.host.realpath(path)
for d in sys.path:
if path.startswith(self.host.realpath(d)):
return True
return False # pragma: no cover
def _spawn(self, test_set):
# TODO: Handle picklable hooks, rather than requiring them to be None.
assert self.classifier is None
assert self.context is None
assert self.setup_fn is None
assert self.teardown_fn is None
assert test_set is None
h = self.host
if self.args.write_trace_to: # pragma: untested
should_delete_trace = False
else:
should_delete_trace = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_trace_to = fp.name
if self.args.write_full_results_to: # pragma: untested
should_delete_results = False
else:
should_delete_results = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_full_results_to = fp.name
argv = ArgumentParser(h).argv_from_args(self.args)
ret = h.call_inline([h.python_interpreter, path_to_file] + argv)
trace = self._read_and_delete(self.args.write_trace_to,
should_delete_trace)
full_results = self._read_and_delete(self.args.write_full_results_to,
should_delete_results)
return ret, full_results, trace
def _set_up_runner(self):
h = self.host
args = self.args
self.stats = Stats(args.status_format, h.time, args.jobs)
self.printer = Printer(self.print_, args.overwrite,
args.terminal_width)
self.top_level_dir = args.top_level_dir
if not self.top_level_dir:
if args.tests and h.isdir(args.tests[0]):
# TODO: figure out what to do if multiple files are
# specified and they don't all have the same correct
# top level dir.
d = h.realpath(h.dirname(args.tests[0]))
if h.exists(d, '__init__.py'):
top_dir = d
else:
top_dir = args.tests[0]
else:
top_dir = h.getcwd()
while h.exists(top_dir, '__init__.py'):
top_dir = h.dirname(top_dir)
self.top_level_dir = h.realpath(top_dir)
h.add_to_path(self.top_level_dir)
for path in args.path:
h.add_to_path(path)
if args.coverage: # pragma: no cover
try:
import coverage
except ImportError:
h.print_("Error: coverage is not installed")
return 1
source = self.args.coverage_source
if not source:
source = [self.top_level_dir] + self.args.path
self.coverage_source = source
self.cov = coverage.coverage(source=self.coverage_source,
data_suffix=True)
self.cov.erase()
return 0
def find_tests(self, args):
test_set = TestSet()
orig_skip = unittest.skip
orig_skip_if = unittest.skipIf
if args.all:
unittest.skip = lambda reason: lambda x: x
unittest.skipIf = lambda condition, reason: lambda x: x
try:
names = self._name_list_from_args(args)
classifier = self.classifier or _default_classifier(args)
for name in names:
try:
self._add_tests_to_set(test_set, args.suffixes,
self.top_level_dir, classifier,
name)
except (AttributeError, ImportError, SyntaxError) as e:
self.print_('Failed to load "%s": %s' % (name, e))
return 1, None
except _AddTestsError as e:
self.print_(str(e))
return 1, None
# TODO: Add support for discovering setupProcess/teardownProcess?
test_set.parallel_tests = _sort_inputs(test_set.parallel_tests)
test_set.isolated_tests = _sort_inputs(test_set.isolated_tests)
test_set.tests_to_skip = _sort_inputs(test_set.tests_to_skip)
return 0, test_set
finally:
unittest.skip = orig_skip
unittest.skipIf = orig_skip_if
def _name_list_from_args(self, args):
if args.tests:
names = args.tests
elif args.file_list:
if args.file_list == '-':
s = self.host.stdin.read()
else:
s = self.host.read_text_file(args.file_list)
names = [line.strip() for line in s.splitlines()]
else:
names = [self.top_level_dir]
return names
def _add_tests_to_set(self, test_set, suffixes, top_level_dir, classifier,
name):
h = self.host
loader = self.loader
add_tests = _test_adder(test_set, classifier)
if h.isfile(name):
rpath = h.relpath(name, top_level_dir)
if rpath.endswith('.py'):
rpath = rpath[:-3]
module = rpath.replace(h.sep, '.')
add_tests(loader.loadTestsFromName(module))
elif h.isdir(name):
for suffix in suffixes:
add_tests(loader.discover(name, suffix, top_level_dir))
else:
possible_dir = name.replace('.', h.sep)
if h.isdir(top_level_dir, possible_dir):
for suffix in suffixes:
path = h.join(top_level_dir, possible_dir)
suite = loader.discover(path, suffix, top_level_dir)
add_tests(suite)
else:
add_tests(loader.loadTestsFromName(name))
def _run_tests(self, result_set, test_set):
h = self.host
if not test_set.parallel_tests and not test_set.isolated_tests:
self.print_('No tests to run.')
return 1, None
all_tests = [
ti.name for ti in _sort_inputs(test_set.parallel_tests +
test_set.isolated_tests +
test_set.tests_to_skip)
]
if self.args.list_only:
self.print_('\n'.join(all_tests))
return 0, None
self._run_one_set(self.stats, result_set, test_set)
failed_tests = sorted(json_results.failed_test_names(result_set))
retry_limit = self.args.retry_limit
while retry_limit and failed_tests:
if retry_limit == self.args.retry_limit:
self.flush()
self.args.overwrite = False
self.printer.should_overwrite = False
self.args.verbose = min(self.args.verbose, 1)
self.print_('')
self.print_('Retrying failed tests (attempt #%d of %d)...' %
(self.args.retry_limit - retry_limit + 1,
self.args.retry_limit))
self.print_('')
stats = Stats(self.args.status_format, h.time, 1)
stats.total = len(failed_tests)
tests_to_retry = TestSet(isolated_tests=list(failed_tests))
retry_set = ResultSet()
self._run_one_set(stats, retry_set, tests_to_retry)
result_set.results.extend(retry_set.results)
failed_tests = json_results.failed_test_names(retry_set)
retry_limit -= 1
if retry_limit != self.args.retry_limit:
self.print_('')
full_results = json_results.make_full_results(self.args.metadata,
int(h.time()), all_tests,
result_set)
return (json_results.exit_code_from_full_results(full_results),
full_results)
def _run_one_set(self, stats, result_set, test_set):
stats.total = (len(test_set.parallel_tests) +
len(test_set.isolated_tests) +
len(test_set.tests_to_skip))
self._skip_tests(stats, result_set, test_set.tests_to_skip)
self._run_list(stats, result_set, test_set.parallel_tests,
self.args.jobs)
self._run_list(stats, result_set, test_set.isolated_tests, 1)
def _skip_tests(self, stats, result_set, tests_to_skip):
for test_input in tests_to_skip:
last = self.host.time()
stats.started += 1
self._print_test_started(stats, test_input)
now = self.host.time()
result = Result(test_input.name,
actual=ResultType.Skip,
started=last,
took=(now - last),
worker=0,
expected=[ResultType.Skip],
out=test_input.msg)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
def _run_list(self, stats, result_set, test_inputs, jobs):
h = self.host
running_jobs = set()
jobs = min(len(test_inputs), jobs)
if not jobs:
return
child = _Child(self)
pool = make_pool(h, jobs, _run_one_test, child, _setup_process,
_teardown_process)
try:
while test_inputs or running_jobs:
while test_inputs and (len(running_jobs) < self.args.jobs):
test_input = test_inputs.pop(0)
stats.started += 1
pool.send(test_input)
running_jobs.add(test_input.name)
self._print_test_started(stats, test_input)
result = pool.get()
running_jobs.remove(result.name)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
pool.close()
finally:
self.final_responses.extend(pool.join())
def _print_test_started(self, stats, test_input):
if self.args.quiet:
# Print nothing when --quiet was passed.
return
# If -vvv was passed, print when the test is queued to be run.
# We don't actually know when the test picked up to run, because
# that is handled by the child process (where we can't easily
# print things). Otherwise, only print when the test is started
# if we know we can overwrite the line, so that we do not
# get multiple lines of output as noise (in -vvv, we actually want
# the noise).
test_start_msg = stats.format() + test_input.name
if self.args.verbose > 2:
self.update(test_start_msg + ' queued', elide=False)
if self.args.overwrite:
self.update(test_start_msg, elide=(not self.args.verbose))
def _print_test_finished(self, stats, result):
stats.add_time()
assert result.actual in [
ResultType.Failure, ResultType.Skip, ResultType.Pass
]
if result.actual == ResultType.Failure:
result_str = ' failed'
elif result.actual == ResultType.Skip:
result_str = ' was skipped'
elif result.actual == ResultType.Pass:
result_str = ' passed'
if result.unexpected:
result_str += ' unexpectedly'
if self.args.timing:
timing_str = ' %.4fs' % result.took
else:
timing_str = ''
suffix = '%s%s' % (result_str, timing_str)
out = result.out
err = result.err
if result.code:
if out or err:
suffix += ':\n'
self.update(stats.format() + result.name + suffix, elide=False)
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
elif not self.args.quiet:
if self.args.verbose > 1 and (out or err):
suffix += ':\n'
self.update(stats.format() + result.name + suffix,
elide=(not self.args.verbose))
if self.args.verbose > 1:
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
if self.args.verbose:
self.flush()
def update(self, msg, elide):
self.printer.update(msg, elide)
def flush(self):
self.printer.flush()
def _summarize(self, full_results):
num_tests = self.stats.finished
num_failures = json_results.num_failures(full_results)
if self.args.quiet and num_failures == 0:
return
if self.args.timing:
timing_clause = ' in %.1fs' % (self.host.time() -
self.stats.started_time)
else:
timing_clause = ''
self.update('%d test%s run%s, %d failure%s.' %
(num_tests, '' if num_tests == 1 else 's', timing_clause,
num_failures, '' if num_failures == 1 else 's'),
elide=False)
self.print_()
def _read_and_delete(self, path, delete):
h = self.host
obj = None
if h.exists(path):
contents = h.read_text_file(path)
if contents:
obj = json.loads(contents)
if delete:
h.remove(path)
return obj
def _write(self, path, obj):
if path:
self.host.write_text_file(path, json.dumps(obj, indent=2) + '\n')
def _upload(self, full_results):
h = self.host
if not self.args.test_results_server:
return 0
url, content_type, data = json_results.make_upload_request(
self.args.test_results_server, self.args.builder_name,
self.args.master_name, self.args.test_type, full_results)
try:
h.fetch(url, data, {'Content-Type': content_type})
return 0
except Exception as e:
h.print_('Uploading the JSON results raised "%s"' % str(e))
return 1
def report_coverage(self):
if self.args.coverage: # pragma: no cover
self.host.print_()
import coverage
cov = coverage.coverage(data_suffix=True)
cov.combine()
cov.report(show_missing=self.args.coverage_show_missing,
omit=self.args.coverage_omit)
if self.args.coverage_annotate:
cov.annotate(omit=self.args.coverage_omit)
def _add_trace_event(self, trace, name, start, end):
event = {
'name': name,
'ts': int((start - self.stats.started_time) * 1000000),
'dur': int((end - start) * 1000000),
'ph': 'X',
'pid': self.host.getpid(),
'tid': 0,
}
trace['traceEvents'].append(event)
def _trace_from_results(self, result_set):
trace = OrderedDict()
trace['traceEvents'] = []
trace['otherData'] = {}
for m in self.args.metadata:
k, v = m.split('=')
trace['otherData'][k] = v
for result in result_set.results:
started = int((result.started - self.stats.started_time) * 1000000)
took = int(result.took * 1000000)
event = OrderedDict()
event['name'] = result.name
event['dur'] = took
event['ts'] = started
event['ph'] = 'X' # "Complete" events
event['pid'] = result.pid
event['tid'] = result.worker
args = OrderedDict()
args['expected'] = sorted(str(r) for r in result.expected)
args['actual'] = str(result.actual)
args['out'] = result.out
args['err'] = result.err
args['code'] = result.code
args['unexpected'] = result.unexpected
args['flaky'] = result.flaky
event['args'] = args
trace['traceEvents'].append(event)
return trace
class Runner(object):
def __init__(self, host=None):
self.args = None
self.classifier = None
self.cov = None
self.context = None
self.coverage_source = None
self.host = host or Host()
self.loader = unittest.loader.TestLoader()
self.printer = None
self.setup_fn = None
self.stats = None
self.teardown_fn = None
self.top_level_dir = None
self.win_multiprocessing = WinMultiprocessing.spawn
# initialize self.args to the defaults.
parser = ArgumentParser(self.host)
self.parse_args(parser, [])
def main(self, argv=None, **defaults):
parser = ArgumentParser(self.host)
self.parse_args(parser, argv, **defaults)
if parser.exit_status is not None:
return parser.exit_status
try:
ret, _, _ = self.run()
return ret
except KeyboardInterrupt:
self.print_("interrupted, exiting", stream=self.host.stderr)
return 130
def parse_args(self, parser, argv, **defaults):
for attrname in defaults:
if not hasattr(self.args, attrname):
parser.error("Unknown default argument name '%s'" % attrname,
bailout=False)
return
parser.set_defaults(**defaults)
self.args = parser.parse_args(args=argv)
if parser.exit_status is not None:
return
def print_(self, msg='', end='\n', stream=None):
self.host.print_(msg, end, stream=stream)
def run(self, test_set=None):
ret = 0
h = self.host
if self.args.version:
self.print_(VERSION)
return ret, None, None
should_spawn = self._check_win_multiprocessing()
if should_spawn:
return self._spawn(test_set)
ret = self._set_up_runner()
if ret: # pragma: no cover
return ret, None, None
find_start = h.time()
if self.cov: # pragma: no cover
self.cov.erase()
self.cov.start()
full_results = None
result_set = ResultSet()
if not test_set:
ret, test_set = self.find_tests(self.args)
find_end = h.time()
if not ret:
ret, full_results = self._run_tests(result_set, test_set)
if self.cov: # pragma: no cover
self.cov.stop()
self.cov.save()
test_end = h.time()
trace = self._trace_from_results(result_set)
if full_results:
self._summarize(full_results)
self._write(self.args.write_full_results_to, full_results)
upload_ret = self._upload(full_results)
if not ret:
ret = upload_ret
reporting_end = h.time()
self._add_trace_event(trace, 'run', find_start, reporting_end)
self._add_trace_event(trace, 'discovery', find_start, find_end)
self._add_trace_event(trace, 'testing', find_end, test_end)
self._add_trace_event(trace, 'reporting', test_end, reporting_end)
self._write(self.args.write_trace_to, trace)
self.report_coverage()
else:
upload_ret = 0
return ret, full_results, trace
def _check_win_multiprocessing(self):
wmp = self.win_multiprocessing
ignore, importable, spawn = WinMultiprocessing.values
if wmp not in WinMultiprocessing.values:
raise ValueError('illegal value %s for win_multiprocessing' %
wmp)
h = self.host
if wmp == ignore and h.platform == 'win32': # pragma: win32
raise ValueError('Cannot use WinMultiprocessing.ignore for '
'win_multiprocessing when actually running '
'on Windows.')
if wmp == ignore or self.args.jobs == 1:
return False
if wmp == importable:
if self._main_is_importable():
return False
raise ValueError('The __main__ module (%s) ' # pragma: no cover
'may not be importable' %
sys.modules['__main__'].__file__)
assert wmp == spawn
return True
def _main_is_importable(self): # pragma: untested
path = sys.modules['__main__'].__file__
if not path:
return False
if path.endswith('.pyc'):
path = path[:-1]
if not path.endswith('.py'):
return False
if path.endswith('__main__.py'):
# main modules are not directly importable.
return False
path = self.host.realpath(path)
for d in sys.path:
if path.startswith(self.host.realpath(d)):
return True
return False # pragma: no cover
def _spawn(self, test_set):
# TODO: Handle picklable hooks, rather than requiring them to be None.
assert self.classifier is None
assert self.context is None
assert self.setup_fn is None
assert self.teardown_fn is None
assert test_set is None
h = self.host
if self.args.write_trace_to: # pragma: untested
should_delete_trace = False
else:
should_delete_trace = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_trace_to = fp.name
if self.args.write_full_results_to: # pragma: untested
should_delete_results = False
else:
should_delete_results = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_full_results_to = fp.name
argv = ArgumentParser(h).argv_from_args(self.args)
ret = h.call_inline([h.python_interpreter, path_to_file] + argv)
trace = self._read_and_delete(self.args.write_trace_to,
should_delete_trace)
full_results = self._read_and_delete(self.args.write_full_results_to,
should_delete_results)
return ret, full_results, trace
def _set_up_runner(self):
h = self.host
args = self.args
self.stats = Stats(args.status_format, h.time, args.jobs)
self.printer = Printer(
self.print_, args.overwrite, args.terminal_width)
self.top_level_dir = args.top_level_dir
if not self.top_level_dir:
if args.tests and h.isdir(args.tests[0]):
# TODO: figure out what to do if multiple files are
# specified and they don't all have the same correct
# top level dir.
if h.exists(h.dirname(args.tests[0]), '__init__.py'):
top_dir = h.dirname(args.tests[0])
else:
top_dir = args.tests[0]
else:
top_dir = h.getcwd()
while h.exists(top_dir, '__init__.py'):
top_dir = h.dirname(top_dir)
self.top_level_dir = h.realpath(top_dir)
h.add_to_path(self.top_level_dir)
for path in args.path:
h.add_to_path(path)
if args.coverage: # pragma: no cover
try:
import coverage
except ImportError:
h.print_("Error: coverage is not installed")
return 1
source = self.args.coverage_source
if not source:
source = [self.top_level_dir] + self.args.path
self.coverage_source = source
self.cov = coverage.coverage(source=self.coverage_source,
data_suffix=True)
self.cov.erase()
return 0
def find_tests(self, args):
test_set = TestSet()
orig_skip = unittest.skip
orig_skip_if = unittest.skipIf
if args.all:
unittest.skip = lambda reason: lambda x: x
unittest.skipIf = lambda condition, reason: lambda x: x
try:
names = self._name_list_from_args(args)
classifier = self.classifier or _default_classifier(args)
for name in names:
try:
self._add_tests_to_set(test_set, args.suffixes,
self.top_level_dir, classifier,
name)
except (AttributeError, ImportError, SyntaxError) as e:
self.print_('Failed to load "%s": %s' % (name, e))
return 1, None
except _AddTestsError as e:
self.print_(str(e))
return 1, None
# TODO: Add support for discovering setupProcess/teardownProcess?
test_set.parallel_tests = _sort_inputs(test_set.parallel_tests)
test_set.isolated_tests = _sort_inputs(test_set.isolated_tests)
test_set.tests_to_skip = _sort_inputs(test_set.tests_to_skip)
return 0, test_set
finally:
unittest.skip = orig_skip
unittest.skipIf = orig_skip_if
def _name_list_from_args(self, args):
if args.tests:
names = args.tests
elif args.file_list:
if args.file_list == '-':
s = self.host.stdin.read()
else:
s = self.host.read_text_file(args.file_list)
names = [line.strip() for line in s.splitlines()]
else:
names = [self.top_level_dir]
return names
def _add_tests_to_set(self, test_set, suffixes, top_level_dir, classifier,
name):
h = self.host
loader = self.loader
add_tests = _test_adder(test_set, classifier)
if h.isfile(name):
rpath = h.relpath(name, top_level_dir)
if rpath.endswith('.py'):
rpath = rpath[:-3]
module = rpath.replace(h.sep, '.')
add_tests(loader.loadTestsFromName(module))
elif h.isdir(name):
for suffix in suffixes:
add_tests(loader.discover(name, suffix, top_level_dir))
else:
possible_dir = name.replace('.', h.sep)
if h.isdir(top_level_dir, possible_dir):
for suffix in suffixes:
path = h.join(top_level_dir, possible_dir)
suite = loader.discover(path, suffix, top_level_dir)
add_tests(suite)
else:
add_tests(loader.loadTestsFromName(name))
def _run_tests(self, result_set, test_set):
h = self.host
if not test_set.parallel_tests and not test_set.isolated_tests:
self.print_('No tests to run.')
return 1, None
all_tests = [ti.name for ti in
_sort_inputs(test_set.parallel_tests +
test_set.isolated_tests +
test_set.tests_to_skip)]
if self.args.list_only:
self.print_('\n'.join(all_tests))
return 0, None
self._run_one_set(self.stats, result_set, test_set)
failed_tests = sorted(json_results.failed_test_names(result_set))
retry_limit = self.args.retry_limit
while retry_limit and failed_tests:
if retry_limit == self.args.retry_limit:
self.flush()
self.args.overwrite = False
self.printer.should_overwrite = False
self.args.verbose = min(self.args.verbose, 1)
self.print_('')
self.print_('Retrying failed tests (attempt #%d of %d)...' %
(self.args.retry_limit - retry_limit + 1,
self.args.retry_limit))
self.print_('')
stats = Stats(self.args.status_format, h.time, 1)
stats.total = len(failed_tests)
tests_to_retry = TestSet(isolated_tests=list(failed_tests))
retry_set = ResultSet()
self._run_one_set(stats, retry_set, tests_to_retry)
result_set.results.extend(retry_set.results)
failed_tests = json_results.failed_test_names(retry_set)
retry_limit -= 1
if retry_limit != self.args.retry_limit:
self.print_('')
full_results = json_results.make_full_results(self.args.metadata,
int(h.time()),
all_tests, result_set)
return (json_results.exit_code_from_full_results(full_results),
full_results)
def _run_one_set(self, stats, result_set, test_set):
stats.total = (len(test_set.parallel_tests) +
len(test_set.isolated_tests) +
len(test_set.tests_to_skip))
self._skip_tests(stats, result_set, test_set.tests_to_skip)
self._run_list(stats, result_set, test_set.parallel_tests,
self.args.jobs)
self._run_list(stats, result_set, test_set.isolated_tests, 1)
def _skip_tests(self, stats, result_set, tests_to_skip):
for test_input in tests_to_skip:
last = self.host.time()
stats.started += 1
self._print_test_started(stats, test_input)
now = self.host.time()
result = Result(test_input.name, actual=ResultType.Skip,
started=last, took=(now - last), worker=0,
expected=[ResultType.Skip],
out=test_input.msg)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
def _run_list(self, stats, result_set, test_inputs, jobs):
h = self.host
running_jobs = set()
jobs = min(len(test_inputs), jobs)
if not jobs:
return
child = _Child(self)
pool = make_pool(h, jobs, _run_one_test, child,
_setup_process, _teardown_process)
try:
while test_inputs or running_jobs:
while test_inputs and (len(running_jobs) < self.args.jobs):
test_input = test_inputs.pop(0)
stats.started += 1
pool.send(test_input)
running_jobs.add(test_input.name)
self._print_test_started(stats, test_input)
result = pool.get()
running_jobs.remove(result.name)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
pool.close()
finally:
pool.join()
def _print_test_started(self, stats, test_input):
if not self.args.quiet and self.args.overwrite:
self.update(stats.format() + test_input.name,
elide=(not self.args.verbose))
def _print_test_finished(self, stats, result):
stats.add_time()
assert result.actual in [ResultType.Failure, ResultType.Skip,
ResultType.Pass]
if result.actual == ResultType.Failure:
result_str = ' failed'
elif result.actual == ResultType.Skip:
result_str = ' was skipped'
elif result.actual == ResultType.Pass:
result_str = ' passed'
if result.unexpected:
result_str += ' unexpectedly'
if self.args.timing:
timing_str = ' %.4fs' % result.took
else:
timing_str = ''
suffix = '%s%s' % (result_str, timing_str)
out = result.out
err = result.err
if result.code:
if out or err:
suffix += ':\n'
self.update(stats.format() + result.name + suffix, elide=False)
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
elif not self.args.quiet:
if self.args.verbose > 1 and (out or err):
suffix += ':\n'
self.update(stats.format() + result.name + suffix,
elide=(not self.args.verbose))
if self.args.verbose > 1:
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
if self.args.verbose:
self.flush()
def update(self, msg, elide):
self.printer.update(msg, elide)
def flush(self):
self.printer.flush()
def _summarize(self, full_results):
num_tests = self.stats.finished
num_failures = json_results.num_failures(full_results)
if self.args.quiet and num_failures == 0:
return
if self.args.timing:
timing_clause = ' in %.1fs' % (self.host.time() -
self.stats.started_time)
else:
timing_clause = ''
self.update('%d test%s run%s, %d failure%s.' %
(num_tests,
'' if num_tests == 1 else 's',
timing_clause,
num_failures,
'' if num_failures == 1 else 's'), elide=False)
self.print_()
def _read_and_delete(self, path, delete):
h = self.host
obj = None
if h.exists(path):
contents = h.read_text_file(path)
if contents:
obj = json.loads(contents)
if delete:
h.remove(path)
return obj
def _write(self, path, obj):
if path:
self.host.write_text_file(path, json.dumps(obj, indent=2) + '\n')
def _upload(self, full_results):
h = self.host
if not self.args.test_results_server:
return 0
url, content_type, data = json_results.make_upload_request(
self.args.test_results_server, self.args.builder_name,
self.args.master_name, self.args.test_type,
full_results)
try:
h.fetch(url, data, {'Content-Type': content_type})
return 0
except Exception as e:
h.print_('Uploading the JSON results raised "%s"' % str(e))
return 1
def report_coverage(self):
if self.args.coverage: # pragma: no cover
self.host.print_()
import coverage
cov = coverage.coverage(data_suffix=True)
cov.combine()
cov.report(show_missing=self.args.coverage_show_missing,
omit=self.args.coverage_omit)
def _add_trace_event(self, trace, name, start, end):
event = {
'name': name,
'ts': int((start - self.stats.started_time) * 1000000),
'dur': int((end - start) * 1000000),
'ph': 'X',
'pid': self.host.getpid(),
'tid': 0,
}
trace['traceEvents'].append(event)
def _trace_from_results(self, result_set):
trace = OrderedDict()
trace['traceEvents'] = []
trace['otherData'] = {}
for m in self.args.metadata:
k, v = m.split('=')
trace['otherData'][k] = v
for result in result_set.results:
started = int((result.started - self.stats.started_time) * 1000000)
took = int(result.took * 1000000)
event = OrderedDict()
event['name'] = result.name
event['dur'] = took
event['ts'] = started
event['ph'] = 'X' # "Complete" events
event['pid'] = result.pid
event['tid'] = result.worker
args = OrderedDict()
args['expected'] = sorted(str(r) for r in result.expected)
args['actual'] = str(result.actual)
args['out'] = result.out
args['err'] = result.err
args['code'] = result.code
args['unexpected'] = result.unexpected
args['flaky'] = result.flaky
event['args'] = args
trace['traceEvents'].append(event)
return trace
class Runner(object):
def __init__(self, host=None):
self.args = None
self.classifier = None
self.cov = None
self.context = None
self.coverage_source = None
self.host = host or Host()
self.loader = unittest.loader.TestLoader()
self.printer = None
self.setup_fn = None
self.stats = None
self.teardown_fn = None
self.top_level_dir = None
self.top_level_dirs = []
self.win_multiprocessing = WinMultiprocessing.spawn
self.final_responses = []
self.has_expectations = False
self.expectations = None
self.metadata = {}
self.path_delimiter = json_results.DEFAULT_TEST_SEPARATOR
# initialize self.args to the defaults.
parser = ArgumentParser(self.host)
self.parse_args(parser, [])
def main(self, argv=None, **defaults):
parser = ArgumentParser(self.host)
self.parse_args(parser, argv, **defaults)
if parser.exit_status is not None:
return parser.exit_status
try:
ret, _, _ = self.run()
return ret
except KeyboardInterrupt:
self.print_("interrupted, exiting", stream=self.host.stderr)
return 130
def parse_args(self, parser, argv, **defaults):
for attrname in defaults:
if not hasattr(self.args, attrname):
parser.error("Unknown default argument name '%s'" % attrname,
bailout=False)
return
parser.set_defaults(**defaults)
self.args = parser.parse_args(args=argv)
if parser.exit_status is not None:
return
def print_(self, msg='', end='\n', stream=None):
self.host.print_(msg, end, stream=stream)
def run(self, test_set=None):
ret = 0
h = self.host
if self.args.version:
self.print_(VERSION)
return ret, None, None
should_spawn = self._check_win_multiprocessing()
if should_spawn:
return self._spawn(test_set)
ret = self._set_up_runner()
if ret:
return ret, None, None
find_start = h.time()
if self.cov: # pragma: no cover
self.cov.erase()
self.cov.start()
full_results = None
result_set = ResultSet()
if not test_set:
ret, test_set = self.find_tests(self.args)
find_end = h.time()
if not ret:
self.stats.total = (len(test_set.parallel_tests) +
len(test_set.isolated_tests) +
len(test_set.tests_to_skip)) * self.args.repeat
all_tests = [ti.name for ti in
_sort_inputs(test_set.parallel_tests +
test_set.isolated_tests +
test_set.tests_to_skip)]
self.metadata = {tup[0]:tup[1]
for tup in
[md.split('=', 1) for md in self.args.metadata]}
if self.args.test_name_prefix:
self.metadata['test_name_prefix'] = self.args.test_name_prefix
if self.args.tags:
self.metadata['tags'] = self.args.tags
if self.args.expectations_files:
self.metadata['expectations_files'] = [
os.path.basename(p) for p in self.args.expectations_files]
if self.args.list_only:
self.print_('\n'.join(all_tests))
else:
for _ in range(self.args.repeat):
current_ret, full_results=self._run_tests(
result_set, test_set.copy(), all_tests)
ret = ret or current_ret
if self.cov: # pragma: no cover
self.cov.stop()
self.cov.save()
test_end = h.time()
trace = self._trace_from_results(result_set)
if full_results:
self._summarize(full_results)
self._write(self.args.write_full_results_to, full_results)
upload_ret = self._upload(full_results)
if not ret:
ret = upload_ret
reporting_end = h.time()
self._add_trace_event(trace, 'run', find_start, reporting_end)
self._add_trace_event(trace, 'discovery', find_start, find_end)
self._add_trace_event(trace, 'testing', find_end, test_end)
self._add_trace_event(trace, 'reporting', test_end, reporting_end)
self._write(self.args.write_trace_to, trace)
self.report_coverage()
else:
upload_ret = 0
return ret, full_results, trace
def _check_win_multiprocessing(self):
wmp = self.win_multiprocessing
ignore, importable, spawn = WinMultiprocessing.values
if wmp not in WinMultiprocessing.values:
raise ValueError('illegal value %s for win_multiprocessing' %
wmp)
h = self.host
if wmp == ignore and h.platform == 'win32': # pragma: win32
raise ValueError('Cannot use WinMultiprocessing.ignore for '
'win_multiprocessing when actually running '
'on Windows.')
if wmp == ignore or self.args.jobs == 1:
return False
if wmp == importable:
if self._main_is_importable():
return False
raise ValueError('The __main__ module (%s) ' # pragma: no cover
'may not be importable' %
sys.modules['__main__'].__file__)
assert wmp == spawn
return True
def _main_is_importable(self): # pragma: untested
path = sys.modules['__main__'].__file__
if not path:
return False
if path.endswith('.pyc'):
path = path[:-1]
if not path.endswith('.py'):
return False
if path.endswith('__main__.py'):
# main modules are not directly importable.
return False
path = self.host.realpath(path)
for d in sys.path:
if path.startswith(self.host.realpath(d)):
return True
return False # pragma: no cover
def _spawn(self, test_set):
# TODO: Handle picklable hooks, rather than requiring them to be None.
assert self.classifier is None
assert self.context is None
assert self.setup_fn is None
assert self.teardown_fn is None
assert test_set is None
h = self.host
if self.args.write_trace_to: # pragma: untested
should_delete_trace = False
else:
should_delete_trace = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_trace_to = fp.name
if self.args.write_full_results_to: # pragma: untested
should_delete_results = False
else:
should_delete_results = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_full_results_to = fp.name
argv = ArgumentParser(h).argv_from_args(self.args)
ret = h.call_inline([h.python_interpreter, path_to_file] + argv)
trace = self._read_and_delete(self.args.write_trace_to,
should_delete_trace)
full_results = self._read_and_delete(self.args.write_full_results_to,
should_delete_results)
return ret, full_results, trace
def _set_up_runner(self):
h = self.host
args = self.args
self.stats = Stats(args.status_format, h.time, args.jobs)
self.printer = Printer(
self.print_, args.overwrite, args.terminal_width)
if self.args.top_level_dirs and self.args.top_level_dir:
self.print_(
'Cannot specify both --top-level-dir and --top-level-dirs',
stream=h.stderr)
return 1
self.top_level_dirs = args.top_level_dirs
if not self.top_level_dirs and args.top_level_dir:
self.top_level_dirs = [args.top_level_dir]
if not self.top_level_dirs:
for test in [t for t in args.tests if h.exists(t)]:
if h.isdir(test):
top_dir = test
else:
top_dir = h.dirname(test)
while h.exists(top_dir, '__init__.py'):
top_dir = h.dirname(top_dir)
top_dir = h.realpath(top_dir)
if not top_dir in self.top_level_dirs:
self.top_level_dirs.append(top_dir)
if not self.top_level_dirs:
top_dir = h.getcwd()
while h.exists(top_dir, '__init__.py'):
top_dir = h.dirname(top_dir)
top_dir = h.realpath(top_dir)
self.top_level_dirs.append(top_dir)
if not self.top_level_dir and self.top_level_dirs:
self.top_level_dir = self.top_level_dirs[0]
for path in self.top_level_dirs:
h.add_to_path(path)
for path in args.path:
h.add_to_path(path)
if args.coverage: # pragma: no cover
try:
import coverage
except ImportError:
self.print_('Error: coverage is not installed.')
return 1
source = self.args.coverage_source
if not source:
source = self.top_level_dirs + self.args.path
self.coverage_source = source
self.cov = coverage.coverage(source=self.coverage_source,
data_suffix=True)
self.cov.erase()
if args.expectations_files:
ret = self.parse_expectations()
if ret:
return ret
elif args.tags:
self.print_('Error: tags require expectations files.')
return 1
return 0
def parse_expectations(self):
args = self.args
if len(args.expectations_files) != 1:
# TODO(crbug.com/835690): Fix this.
self.print_(
'Only a single expectation file is currently supported',
stream=self.host.stderr)
return 1
contents = self.host.read_text_file(args.expectations_files[0])
expectations = TestExpectations(set(args.tags))
err, msg = expectations.parse_tagged_list(contents)
if err:
self.print_(msg, stream=self.host.stderr)
return err
self.has_expectations = True
self.expectations = expectations
def find_tests(self, args):
test_set = TestSet(self.args.test_name_prefix)
orig_skip = unittest.skip
orig_skip_if = unittest.skipIf
if args.all:
unittest.skip = lambda reason: lambda x: x
unittest.skipIf = lambda condition, reason: lambda x: x
try:
names = self._name_list_from_args(args)
classifier = self.classifier or self.default_classifier
for name in names:
try:
self._add_tests_to_set(test_set, args.suffixes,
self.top_level_dirs, classifier,
name)
except (AttributeError, ImportError, SyntaxError) as e:
ex_str = traceback.format_exc()
self.print_('Failed to load "%s" in find_tests: %s' %
(name, e))
self.print_(' %s' %
'\n '.join(ex_str.splitlines()))
self.print_(ex_str)
return 1, None
except _AddTestsError as e:
self.print_(str(e))
return 1, None
# TODO: Add support for discovering setupProcess/teardownProcess?
shard_index = args.shard_index
total_shards = args.total_shards
assert total_shards >= 1
assert shard_index >= 0 and shard_index < total_shards, (
'shard_index (%d) must be >= 0 and < total_shards (%d)' %
(shard_index, total_shards))
test_set.parallel_tests = _sort_inputs(
test_set.parallel_tests)[shard_index::total_shards]
test_set.isolated_tests = _sort_inputs(
test_set.isolated_tests)[shard_index::total_shards]
test_set.tests_to_skip = _sort_inputs(
test_set.tests_to_skip)[shard_index::total_shards]
return 0, test_set
finally:
unittest.skip = orig_skip
unittest.skipIf = orig_skip_if
def _name_list_from_args(self, args):
if args.tests:
names = args.tests
elif args.file_list:
if args.file_list == '-':
s = self.host.stdin.read()
else:
s = self.host.read_text_file(args.file_list)
names = [line.strip() for line in s.splitlines()]
else:
names = self.top_level_dirs
return names
def _add_tests_to_set(self, test_set, suffixes, top_level_dirs, classifier,
name):
h = self.host
loader = self.loader
add_tests = _test_adder(test_set, classifier)
found = set()
for d in top_level_dirs:
if h.isfile(name):
rpath = h.relpath(name, d)
if rpath.startswith('..'):
continue
if rpath.endswith('.py'):
rpath = rpath[:-3]
module = rpath.replace(h.sep, '.')
if module not in found:
found.add(module)
add_tests(loader.loadTestsFromName(module))
elif h.isdir(name):
rpath = h.relpath(name, d)
if rpath.startswith('..'):
continue
for suffix in suffixes:
if not name in found:
found.add(name + '/' + suffix)
add_tests(loader.discover(name, suffix, d))
else:
possible_dir = name.replace('.', h.sep)
if h.isdir(d, possible_dir):
for suffix in suffixes:
path = h.join(d, possible_dir)
if not path in found:
found.add(path + '/' + suffix)
suite = loader.discover(path, suffix, d)
add_tests(suite)
elif not name in found:
found.add(name)
add_tests(loader.loadTestsFromName(
self.args.test_name_prefix + name))
# pylint: disable=no-member
if hasattr(loader, 'errors') and loader.errors: # pragma: python3
# In Python3's version of unittest, loader failures get converted
# into failed test cases, rather than raising exceptions. However,
# the errors also get recorded so you can err out immediately.
raise ImportError(loader.errors)
def _run_tests(self, result_set, test_set, all_tests):
h = self.host
self.last_runs_retry_on_failure_tests = set()
def get_tests_to_retry(results):
# If the --retry-only-retry-on-failure-tests command line argument
# is passed , then a set of test failures with the RetryOnFailure
# expectation from the last run of tests will be returned. The
# self.last_runs_retry_on_failure_tests will be set to an empty set
# for the next run of tests. Otherwise all regressions from the
# last run will be returned.
if self.args.retry_only_retry_on_failure_tests:
ret = self.last_runs_retry_on_failure_tests.copy()
self.last_runs_retry_on_failure_tests = set()
return ret
else:
return json_results.regressions(results)
self._run_one_set(self.stats, result_set, test_set)
tests_to_retry = sorted(get_tests_to_retry(result_set))
retry_limit = self.args.retry_limit
while retry_limit and tests_to_retry:
if retry_limit == self.args.retry_limit:
self.flush()
self.args.overwrite = False
self.printer.should_overwrite = False
self.args.verbose = min(self.args.verbose, 1)
self.print_('')
self.print_('Retrying failed tests (attempt #%d of %d)...' %
(self.args.retry_limit - retry_limit + 1,
self.args.retry_limit))
self.print_('')
stats = Stats(self.args.status_format, h.time, 1)
stats.total = len(tests_to_retry)
test_set = TestSet(self.args.test_name_prefix)
test_set.isolated_tests = [
TestInput(name) for name in tests_to_retry]
tests_to_retry = test_set
retry_set = ResultSet()
self._run_one_set(stats, retry_set, tests_to_retry)
result_set.results.extend(retry_set.results)
tests_to_retry = get_tests_to_retry(retry_set)
retry_limit -= 1
if retry_limit != self.args.retry_limit:
self.print_('')
full_results = json_results.make_full_results(self.metadata,
int(h.time()),
all_tests, result_set,
self.path_delimiter)
return (json_results.exit_code_from_full_results(full_results),
full_results)
def _run_one_set(self, stats, result_set, test_set):
self._skip_tests(stats, result_set, test_set.tests_to_skip)
self._run_list(stats, result_set,
test_set.parallel_tests, self.args.jobs)
self._run_list(stats, result_set,
test_set.isolated_tests, 1)
def _skip_tests(self, stats, result_set, tests_to_skip):
for test_input in tests_to_skip:
last = self.host.time()
stats.started += 1
self._print_test_started(stats, test_input)
now = self.host.time()
result = Result(test_input.name, actual=ResultType.Skip,
started=last, took=(now - last), worker=0,
expected=[ResultType.Skip],
out=test_input.msg)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
def _run_list(self, stats, result_set, test_inputs, jobs):
h = self.host
running_jobs = set()
jobs = min(len(test_inputs), jobs)
if not jobs:
return
child = _Child(self)
pool = make_pool(h, jobs, _run_one_test, child,
_setup_process, _teardown_process)
try:
while test_inputs or running_jobs:
while test_inputs and (len(running_jobs) < jobs):
test_input = test_inputs.pop(0)
stats.started += 1
pool.send(test_input)
running_jobs.add(test_input.name)
self._print_test_started(stats, test_input)
result, should_retry_on_failure = pool.get()
if (self.args.retry_only_retry_on_failure_tests and
result.actual == ResultType.Failure and
should_retry_on_failure):
self.last_runs_retry_on_failure_tests.add(result.name)
running_jobs.remove(result.name)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
pool.close()
finally:
self.final_responses.extend(pool.join())
def _print_test_started(self, stats, test_input):
if self.args.quiet:
# Print nothing when --quiet was passed.
return
# If -vvv was passed, print when the test is queued to be run.
# We don't actually know when the test picked up to run, because
# that is handled by the child process (where we can't easily
# print things). Otherwise, only print when the test is started
# if we know we can overwrite the line, so that we do not
# get multiple lines of output as noise (in -vvv, we actually want
# the noise).
test_start_msg = stats.format() + test_input.name
if self.args.verbose > 2:
self.update(test_start_msg + ' queued', elide=False)
if self.args.overwrite:
self.update(test_start_msg, elide=(not self.args.verbose))
def _print_test_finished(self, stats, result):
stats.add_time()
assert result.actual in [ResultType.Failure, ResultType.Skip,
ResultType.Pass]
if result.actual == ResultType.Failure:
result_str = ' failed'
elif result.actual == ResultType.Skip:
result_str = ' was skipped'
elif result.actual == ResultType.Pass:
result_str = ' passed'
if result.unexpected:
result_str += ' unexpectedly'
elif result.actual == ResultType.Failure:
result_str += ' as expected'
if self.args.timing:
timing_str = ' %.4fs' % result.took
else:
timing_str = ''
suffix = '%s%s' % (result_str, timing_str)
out = result.out
err = result.err
if result.code:
if out or err:
suffix += ':\n'
self.update(stats.format() + result.name + suffix, elide=False)
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
elif not self.args.quiet:
if self.args.verbose > 1 and (out or err):
suffix += ':\n'
self.update(stats.format() + result.name + suffix,
elide=(not self.args.verbose))
if self.args.verbose > 1:
for l in out.splitlines():
self.print_(' %s' % l)
for l in err.splitlines():
self.print_(' %s' % l)
if self.args.verbose:
self.flush()
def update(self, msg, elide):
self.printer.update(msg, elide)
def flush(self):
self.printer.flush()
def _summarize(self, full_results):
num_passes = json_results.num_passes(full_results)
num_failures = json_results.num_failures(full_results)
num_skips = json_results.num_skips(full_results)
if self.args.quiet and num_failures == 0:
return
if self.args.timing:
timing_clause = ' in %.1fs' % (self.host.time() -
self.stats.started_time)
else:
timing_clause = ''
self.update('%d test%s passed%s, %d skipped, %d failure%s.' %
(num_passes,
'' if num_passes == 1 else 's',
timing_clause,
num_skips,
num_failures,
'' if num_failures == 1 else 's'), elide=False)
self.print_()
def _read_and_delete(self, path, delete):
h = self.host
obj = None
if h.exists(path):
contents = h.read_text_file(path)
if contents:
obj = json.loads(contents)
if delete:
h.remove(path)
return obj
def _write(self, path, obj):
if path:
self.host.write_text_file(path, json.dumps(obj, indent=2) + '\n')
def _upload(self, full_results):
h = self.host
if not self.args.test_results_server:
return 0
url, content_type, data = json_results.make_upload_request(
self.args.test_results_server, self.args.builder_name,
self.args.master_name, self.args.test_type,
full_results)
try:
h.fetch(url, data, {'Content-Type': content_type})
return 0
except Exception as e:
h.print_('Uploading the JSON results raised "%s"' % str(e))
return 1
def report_coverage(self):
if self.args.coverage: # pragma: no cover
self.host.print_()
import coverage
cov = coverage.coverage(data_suffix=True)
cov.combine()
cov.report(show_missing=self.args.coverage_show_missing,
omit=self.args.coverage_omit)
if self.args.coverage_annotate:
cov.annotate(omit=self.args.coverage_omit)
def _add_trace_event(self, trace, name, start, end):
event = {
'name': name,
'ts': int((start - self.stats.started_time) * 1000000),
'dur': int((end - start) * 1000000),
'ph': 'X',
'pid': self.host.getpid(),
'tid': 0,
}
trace['traceEvents'].append(event)
def _trace_from_results(self, result_set):
trace = OrderedDict()
trace['traceEvents'] = []
trace['otherData'] = {}
if self.metadata:
trace['otherData'] = self.metadata
for result in result_set.results:
started = int((result.started - self.stats.started_time) * 1000000)
took = int(result.took * 1000000)
event = OrderedDict()
event['name'] = result.name
event['dur'] = took
event['ts'] = started
event['ph'] = 'X' # "Complete" events
event['pid'] = result.pid
event['tid'] = result.worker
args = OrderedDict()
args['expected'] = sorted(str(r) for r in result.expected)
args['actual'] = str(result.actual)
args['out'] = result.out
args['err'] = result.err
args['code'] = result.code
args['unexpected'] = result.unexpected
args['flaky'] = result.flaky
event['args'] = args
trace['traceEvents'].append(event)
return trace
def expectations_for(self, test_case):
if self.has_expectations:
return self.expectations.expectations_for(
test_case.id()[len(self.args.test_name_prefix):])
else:
return (set([ResultType.Pass]), False)
def default_classifier(self, test_set, test):
if self.matches_filter(test):
if self.should_skip(test):
test_set.add_test_to_skip(test, 'skipped by request')
elif self.should_isolate(test):
test_set.add_test_to_run_isolated(test)
else:
test_set.add_test_to_run_in_parallel(test)
def matches_filter(self, test_case):
_validate_test_starts_with_prefix(
self.args.test_name_prefix, test_case.id())
test_name = test_case.id()[len(self.args.test_name_prefix):]
return (not self.args.test_filter or any(
fnmatch.fnmatch(test_name, glob)
for glob in self.args.test_filter.split('::')))
def should_isolate(self, test_case):
_validate_test_starts_with_prefix(
self.args.test_name_prefix, test_case.id())
test_name = test_case.id()[len(self.args.test_name_prefix):]
return any(fnmatch.fnmatch(test_name, glob)
for glob in self.args.isolate)
def should_skip(self, test_case):
_validate_test_starts_with_prefix(
self.args.test_name_prefix, test_case.id())
if self.args.all:
return False
test_name = test_case.id()[len(self.args.test_name_prefix):]
if self.has_expectations:
expected_results, _ = self.expectations.expectations_for(test_name)
else:
expected_results = set([ResultType.Pass])
return (
ResultType.Skip in expected_results or
any(fnmatch.fnmatch(test_name, glob) for glob in self.args.skip))
def test_elide(self):
pr = Printer(self.print_, False, 8)
pr.update('hello world')
pr.flush()
self.assertEqual(self.out, ['h...d', '\n'])
def test_basic(self):
pr = Printer(self.print_, False, 80)
pr.update('foo')
pr.flush()
self.assertEqual(self.out, ['foo', '\n'])
class Runner(object):
def __init__(self, host=None):
self.args = None
self.classifier = None
self.cov = None
self.context = None
self.coverage_source = None
self.host = host or Host()
self.loader = unittest.loader.TestLoader()
self.printer = None
self.setup_fn = None
self.stats = None
self.teardown_fn = None
self.top_level_dir = None
self.win_multiprocessing = WinMultiprocessing.spawn
self.final_responses = []
# initialize self.args to the defaults.
parser = ArgumentParser(self.host)
self.parse_args(parser, [])
def main(self, argv=None, **defaults):
parser = ArgumentParser(self.host)
self.parse_args(parser, argv, **defaults)
if parser.exit_status is not None:
return parser.exit_status
try:
ret, _, _ = self.run()
return ret
except KeyboardInterrupt:
self.print_("interrupted, exiting", stream=self.host.stderr)
return 130
def parse_args(self, parser, argv, **defaults):
for attrname in defaults:
if not hasattr(self.args, attrname):
parser.error("Unknown default argument name '%s'" % attrname, bailout=False)
return
parser.set_defaults(**defaults)
self.args = parser.parse_args(args=argv)
if parser.exit_status is not None:
return
def print_(self, msg="", end="\n", stream=None):
self.host.print_(msg, end, stream=stream)
def run(self, test_set=None):
ret = 0
h = self.host
if self.args.version:
self.print_(VERSION)
return ret, None, None
should_spawn = self._check_win_multiprocessing()
if should_spawn:
return self._spawn(test_set)
ret = self._set_up_runner()
if ret: # pragma: no cover
return ret, None, None
find_start = h.time()
if self.cov: # pragma: no cover
self.cov.erase()
self.cov.start()
full_results = None
result_set = ResultSet()
if not test_set:
ret, test_set = self.find_tests(self.args)
find_end = h.time()
if not ret:
ret, full_results = self._run_tests(result_set, test_set)
if self.cov: # pragma: no cover
self.cov.stop()
self.cov.save()
test_end = h.time()
trace = self._trace_from_results(result_set)
if full_results:
self._summarize(full_results)
self._write(self.args.write_full_results_to, full_results)
upload_ret = self._upload(full_results)
if not ret:
ret = upload_ret
reporting_end = h.time()
self._add_trace_event(trace, "run", find_start, reporting_end)
self._add_trace_event(trace, "discovery", find_start, find_end)
self._add_trace_event(trace, "testing", find_end, test_end)
self._add_trace_event(trace, "reporting", test_end, reporting_end)
self._write(self.args.write_trace_to, trace)
self.report_coverage()
else:
upload_ret = 0
return ret, full_results, trace
def _check_win_multiprocessing(self):
wmp = self.win_multiprocessing
ignore, importable, spawn = WinMultiprocessing.values
if wmp not in WinMultiprocessing.values:
raise ValueError("illegal value %s for win_multiprocessing" % wmp)
h = self.host
if wmp == ignore and h.platform == "win32": # pragma: win32
raise ValueError(
"Cannot use WinMultiprocessing.ignore for " "win_multiprocessing when actually running " "on Windows."
)
if wmp == ignore or self.args.jobs == 1:
return False
if wmp == importable:
if self._main_is_importable():
return False
raise ValueError(
"The __main__ module (%s) " # pragma: no cover
"may not be importable" % sys.modules["__main__"].__file__
)
assert wmp == spawn
return True
def _main_is_importable(self): # pragma: untested
path = sys.modules["__main__"].__file__
if not path:
return False
if path.endswith(".pyc"):
path = path[:-1]
if not path.endswith(".py"):
return False
if path.endswith("__main__.py"):
# main modules are not directly importable.
return False
path = self.host.realpath(path)
for d in sys.path:
if path.startswith(self.host.realpath(d)):
return True
return False # pragma: no cover
def _spawn(self, test_set):
# TODO: Handle picklable hooks, rather than requiring them to be None.
assert self.classifier is None
assert self.context is None
assert self.setup_fn is None
assert self.teardown_fn is None
assert test_set is None
h = self.host
if self.args.write_trace_to: # pragma: untested
should_delete_trace = False
else:
should_delete_trace = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_trace_to = fp.name
if self.args.write_full_results_to: # pragma: untested
should_delete_results = False
else:
should_delete_results = True
fp = h.mktempfile(delete=False)
fp.close()
self.args.write_full_results_to = fp.name
argv = ArgumentParser(h).argv_from_args(self.args)
ret = h.call_inline([h.python_interpreter, path_to_file] + argv)
trace = self._read_and_delete(self.args.write_trace_to, should_delete_trace)
full_results = self._read_and_delete(self.args.write_full_results_to, should_delete_results)
return ret, full_results, trace
def _set_up_runner(self):
h = self.host
args = self.args
self.stats = Stats(args.status_format, h.time, args.jobs)
self.printer = Printer(self.print_, args.overwrite, args.terminal_width)
self.top_level_dir = args.top_level_dir
if not self.top_level_dir:
if args.tests and h.isdir(args.tests[0]):
# TODO: figure out what to do if multiple files are
# specified and they don't all have the same correct
# top level dir.
d = h.realpath(h.dirname(args.tests[0]))
if h.exists(d, "__init__.py"):
top_dir = d
else:
top_dir = args.tests[0]
else:
top_dir = h.getcwd()
while h.exists(top_dir, "__init__.py"):
top_dir = h.dirname(top_dir)
self.top_level_dir = h.realpath(top_dir)
h.add_to_path(self.top_level_dir)
for path in args.path:
h.add_to_path(path)
if args.coverage: # pragma: no cover
try:
import coverage
except ImportError:
h.print_("Error: coverage is not installed")
return 1
source = self.args.coverage_source
if not source:
source = [self.top_level_dir] + self.args.path
self.coverage_source = source
self.cov = coverage.coverage(source=self.coverage_source, data_suffix=True)
self.cov.erase()
return 0
def find_tests(self, args):
test_set = TestSet()
orig_skip = unittest.skip
orig_skip_if = unittest.skipIf
if args.all:
unittest.skip = lambda reason: lambda x: x
unittest.skipIf = lambda condition, reason: lambda x: x
try:
names = self._name_list_from_args(args)
classifier = self.classifier or _default_classifier(args)
for name in names:
try:
self._add_tests_to_set(test_set, args.suffixes, self.top_level_dir, classifier, name)
except (AttributeError, ImportError, SyntaxError) as e:
ex_str = traceback.format_exc()
self.print_('Failed to load "%s" in find_tests: %s' % (name, e))
self.print_(" %s" % "\n ".join(ex_str.splitlines()))
self.print_(ex_str)
return 1, None
except _AddTestsError as e:
self.print_(str(e))
return 1, None
# TODO: Add support for discovering setupProcess/teardownProcess?
shard_index = args.shard_index
total_shards = args.total_shards
assert total_shards >= 1
assert (
shard_index >= 0 and shard_index < total_shards
), "shard_index (%d) must be >= 0 and < total_shards (%d)" % (shard_index, total_shards)
test_set.parallel_tests = _sort_inputs(test_set.parallel_tests)[shard_index::total_shards]
test_set.isolated_tests = _sort_inputs(test_set.isolated_tests)[shard_index::total_shards]
test_set.tests_to_skip = _sort_inputs(test_set.tests_to_skip)[shard_index::total_shards]
return 0, test_set
finally:
unittest.skip = orig_skip
unittest.skipIf = orig_skip_if
def _name_list_from_args(self, args):
if args.tests:
names = args.tests
elif args.file_list:
if args.file_list == "-":
s = self.host.stdin.read()
else:
s = self.host.read_text_file(args.file_list)
names = [line.strip() for line in s.splitlines()]
else:
names = [self.top_level_dir]
return names
def _add_tests_to_set(self, test_set, suffixes, top_level_dir, classifier, name):
h = self.host
loader = self.loader
add_tests = _test_adder(test_set, classifier)
if h.isfile(name):
rpath = h.relpath(name, top_level_dir)
if rpath.endswith(".py"):
rpath = rpath[:-3]
module = rpath.replace(h.sep, ".")
add_tests(loader.loadTestsFromName(module))
elif h.isdir(name):
for suffix in suffixes:
add_tests(loader.discover(name, suffix, top_level_dir))
else:
possible_dir = name.replace(".", h.sep)
if h.isdir(top_level_dir, possible_dir):
for suffix in suffixes:
path = h.join(top_level_dir, possible_dir)
suite = loader.discover(path, suffix, top_level_dir)
add_tests(suite)
else:
add_tests(loader.loadTestsFromName(name))
# pylint: disable=no-member
if hasattr(loader, "errors") and loader.errors: # pragma: python3
# In Python3's version of unittest, loader failures get converted
# into failed test cases, rather than raising exceptions. However,
# the errors also get recorded so you can err out immediately.
raise ImportError(loader.errors)
def _run_tests(self, result_set, test_set):
h = self.host
if not test_set.parallel_tests and not test_set.isolated_tests:
self.print_("No tests to run.")
return 1, None
all_tests = [
ti.name for ti in _sort_inputs(test_set.parallel_tests + test_set.isolated_tests + test_set.tests_to_skip)
]
if self.args.list_only:
self.print_("\n".join(all_tests))
return 0, None
self._run_one_set(self.stats, result_set, test_set)
failed_tests = sorted(json_results.failed_test_names(result_set))
retry_limit = self.args.retry_limit
while retry_limit and failed_tests:
if retry_limit == self.args.retry_limit:
self.flush()
self.args.overwrite = False
self.printer.should_overwrite = False
self.args.verbose = min(self.args.verbose, 1)
self.print_("")
self.print_(
"Retrying failed tests (attempt #%d of %d)..."
% (self.args.retry_limit - retry_limit + 1, self.args.retry_limit)
)
self.print_("")
stats = Stats(self.args.status_format, h.time, 1)
stats.total = len(failed_tests)
tests_to_retry = TestSet(isolated_tests=list(failed_tests))
retry_set = ResultSet()
self._run_one_set(stats, retry_set, tests_to_retry)
result_set.results.extend(retry_set.results)
failed_tests = json_results.failed_test_names(retry_set)
retry_limit -= 1
if retry_limit != self.args.retry_limit:
self.print_("")
full_results = json_results.make_full_results(self.args.metadata, int(h.time()), all_tests, result_set)
return (json_results.exit_code_from_full_results(full_results), full_results)
def _run_one_set(self, stats, result_set, test_set):
stats.total = len(test_set.parallel_tests) + len(test_set.isolated_tests) + len(test_set.tests_to_skip)
self._skip_tests(stats, result_set, test_set.tests_to_skip)
self._run_list(stats, result_set, test_set.parallel_tests, self.args.jobs)
self._run_list(stats, result_set, test_set.isolated_tests, 1)
def _skip_tests(self, stats, result_set, tests_to_skip):
for test_input in tests_to_skip:
last = self.host.time()
stats.started += 1
self._print_test_started(stats, test_input)
now = self.host.time()
result = Result(
test_input.name,
actual=ResultType.Skip,
started=last,
took=(now - last),
worker=0,
expected=[ResultType.Skip],
out=test_input.msg,
)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
def _run_list(self, stats, result_set, test_inputs, jobs):
h = self.host
running_jobs = set()
jobs = min(len(test_inputs), jobs)
if not jobs:
return
child = _Child(self)
pool = make_pool(h, jobs, _run_one_test, child, _setup_process, _teardown_process)
try:
while test_inputs or running_jobs:
while test_inputs and (len(running_jobs) < self.args.jobs):
test_input = test_inputs.pop(0)
stats.started += 1
pool.send(test_input)
running_jobs.add(test_input.name)
self._print_test_started(stats, test_input)
result = pool.get()
running_jobs.remove(result.name)
result_set.add(result)
stats.finished += 1
self._print_test_finished(stats, result)
pool.close()
finally:
self.final_responses.extend(pool.join())
def _print_test_started(self, stats, test_input):
if self.args.quiet:
# Print nothing when --quiet was passed.
return
# If -vvv was passed, print when the test is queued to be run.
# We don't actually know when the test picked up to run, because
# that is handled by the child process (where we can't easily
# print things). Otherwise, only print when the test is started
# if we know we can overwrite the line, so that we do not
# get multiple lines of output as noise (in -vvv, we actually want
# the noise).
test_start_msg = stats.format() + test_input.name
if self.args.verbose > 2:
self.update(test_start_msg + " queued", elide=False)
if self.args.overwrite:
self.update(test_start_msg, elide=(not self.args.verbose))
def _print_test_finished(self, stats, result):
stats.add_time()
assert result.actual in [ResultType.Failure, ResultType.Skip, ResultType.Pass]
if result.actual == ResultType.Failure:
result_str = " failed"
elif result.actual == ResultType.Skip:
result_str = " was skipped"
elif result.actual == ResultType.Pass:
result_str = " passed"
if result.unexpected:
result_str += " unexpectedly"
if self.args.timing:
timing_str = " %.4fs" % result.took
else:
timing_str = ""
suffix = "%s%s" % (result_str, timing_str)
out = result.out
err = result.err
if result.code:
if out or err:
suffix += ":\n"
self.update(stats.format() + result.name + suffix, elide=False)
for l in out.splitlines():
self.print_(" %s" % l)
for l in err.splitlines():
self.print_(" %s" % l)
elif not self.args.quiet:
if self.args.verbose > 1 and (out or err):
suffix += ":\n"
self.update(stats.format() + result.name + suffix, elide=(not self.args.verbose))
if self.args.verbose > 1:
for l in out.splitlines():
self.print_(" %s" % l)
for l in err.splitlines():
self.print_(" %s" % l)
if self.args.verbose:
self.flush()
def update(self, msg, elide):
self.printer.update(msg, elide)
def flush(self):
self.printer.flush()
def _summarize(self, full_results):
num_tests = self.stats.finished
num_failures = json_results.num_failures(full_results)
if self.args.quiet and num_failures == 0:
return
if self.args.timing:
timing_clause = " in %.1fs" % (self.host.time() - self.stats.started_time)
else:
timing_clause = ""
self.update(
"%d test%s run%s, %d failure%s."
% (num_tests, "" if num_tests == 1 else "s", timing_clause, num_failures, "" if num_failures == 1 else "s"),
elide=False,
)
self.print_()
def _read_and_delete(self, path, delete):
h = self.host
obj = None
if h.exists(path):
contents = h.read_text_file(path)
if contents:
obj = json.loads(contents)
if delete:
h.remove(path)
return obj
def _write(self, path, obj):
if path:
self.host.write_text_file(path, json.dumps(obj, indent=2) + "\n")
def _upload(self, full_results):
h = self.host
if not self.args.test_results_server:
return 0
url, content_type, data = json_results.make_upload_request(
self.args.test_results_server,
self.args.builder_name,
self.args.master_name,
self.args.test_type,
full_results,
)
try:
h.fetch(url, data, {"Content-Type": content_type})
return 0
except Exception as e:
h.print_('Uploading the JSON results raised "%s"' % str(e))
return 1
def report_coverage(self):
if self.args.coverage: # pragma: no cover
self.host.print_()
import coverage
cov = coverage.coverage(data_suffix=True)
cov.combine()
cov.report(show_missing=self.args.coverage_show_missing, omit=self.args.coverage_omit)
if self.args.coverage_annotate:
cov.annotate(omit=self.args.coverage_omit)
def _add_trace_event(self, trace, name, start, end):
event = {
"name": name,
"ts": int((start - self.stats.started_time) * 1000000),
"dur": int((end - start) * 1000000),
"ph": "X",
"pid": self.host.getpid(),
"tid": 0,
}
trace["traceEvents"].append(event)
def _trace_from_results(self, result_set):
trace = OrderedDict()
trace["traceEvents"] = []
trace["otherData"] = {}
for m in self.args.metadata:
k, v = m.split("=")
trace["otherData"][k] = v
for result in result_set.results:
started = int((result.started - self.stats.started_time) * 1000000)
took = int(result.took * 1000000)
event = OrderedDict()
event["name"] = result.name
event["dur"] = took
event["ts"] = started
event["ph"] = "X" # "Complete" events
event["pid"] = result.pid
event["tid"] = result.worker
args = OrderedDict()
args["expected"] = sorted(str(r) for r in result.expected)
args["actual"] = str(result.actual)
args["out"] = result.out
args["err"] = result.err
args["code"] = result.code
args["unexpected"] = result.unexpected
args["flaky"] = result.flaky
event["args"] = args
trace["traceEvents"].append(event)
return trace