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from __future__ import print_function
import array
import os
import sys
from collections import defaultdict, namedtuple
from mozlog import structuredlog
from six import ensure_str, ensure_text, iteritems, iterkeys, itervalues, text_type
from six.moves import intern, range
from . import manifestupdate
from . import testloader
from . import wptmanifest
from . import wpttest
from .expected import expected_path
from .vcs import git
manifest = None # Module that will be imported relative to test_root
manifestitem = None
logger = structuredlog.StructuredLogger("web-platform-tests")
try:
import ujson as json
except ImportError:
import json
class RunInfo(object):
"""A wrapper around RunInfo dicts so that they can be hashed by identity"""
def __init__(self, dict_value):
self.data = dict_value
self.canonical_repr = tuple(tuple(item) for item in sorted(dict_value.items()))
def __getitem__(self, key):
return self.data[key]
def __setitem__(self, key, value):
raise TypeError
def __hash__(self):
return hash(self.canonical_repr)
def __eq__(self, other):
return self.canonical_repr == other.canonical_repr
def iteritems(self):
for key, value in iteritems(self.data):
yield key, value
def items(self):
return list(iteritems(self))
def update_expected(test_paths, serve_root, log_file_names,
update_properties, rev_old=None, rev_new="HEAD",
full_update=False, sync_root=None, disable_intermittent=None,
update_intermittent=False, remove_intermittent=False):
"""Update the metadata files for web-platform-tests based on
the results obtained in a previous run or runs
If `disable_intermittent` is not None, assume log_file_names refers to logs from repeated
test jobs, disable tests that don't behave as expected on all runs
If `update_intermittent` is True, intermittent statuses will be recorded as `expected` in
the metadata.
If `remove_intermittent` is True and used in conjunction with `update_intermittent`, any
intermittent statuses which are not present in the current run will be removed from the
metadata, else they are left in."""
do_delayed_imports(serve_root)
id_test_map = load_test_data(test_paths)
for metadata_path, updated_ini in update_from_logs(id_test_map,
update_properties,
disable_intermittent,
update_intermittent,
remove_intermittent,
full_update,
*log_file_names):
write_new_expected(metadata_path, updated_ini)
if disable_intermittent:
for test in updated_ini.iterchildren():
for subtest in test.iterchildren():
if subtest.new_disabled:
print("disabled: %s" % os.path.dirname(subtest.root.test_path) + "/" + subtest.name)
if test.new_disabled:
print("disabled: %s" % test.root.test_path)
def do_delayed_imports(serve_root=None):
global manifest, manifestitem
from manifest import manifest, item as manifestitem
def files_in_repo(repo_root):
return git("ls-tree", "-r", "--name-only", "HEAD").split("\n")
def rev_range(rev_old, rev_new, symmetric=False):
joiner = ".." if not symmetric else "..."
return "".join([rev_old, joiner, rev_new])
def paths_changed(rev_old, rev_new, repo):
data = git("diff", "--name-status", rev_range(rev_old, rev_new), repo=repo)
lines = [tuple(item.strip() for item in line.strip().split("\t", 1))
for line in data.split("\n") if line.strip()]
output = set(lines)
return output
def load_change_data(rev_old, rev_new, repo):
changes = paths_changed(rev_old, rev_new, repo)
rv = {}
status_keys = {"M": "modified",
"A": "new",
"D": "deleted"}
# TODO: deal with renames
for item in changes:
rv[item[1]] = status_keys[item[0]]
return rv
def unexpected_changes(manifests, change_data, files_changed):
files_changed = set(files_changed)
root_manifest = None
for manifest, paths in iteritems(manifests):
if paths["url_base"] == "/":
root_manifest = manifest
break
else:
return []
return [fn for _, fn, _ in root_manifest if fn in files_changed and change_data.get(fn) != "M"]
# For each testrun
# Load all files and scan for the suite_start entry
# Build a hash of filename: properties
# For each different set of properties, gather all chunks
# For each chunk in the set of chunks, go through all tests
# for each test, make a map of {conditionals: [(platform, new_value)]}
# Repeat for each platform
# For each test in the list of tests:
# for each conditional:
# If all the new values match (or there aren't any) retain that conditional
# If any new values mismatch:
# If disable_intermittent and any repeated values don't match, disable the test
# else mark the test as needing human attention
# Check if all the RHS values are the same; if so collapse the conditionals
class InternedData(object):
"""Class for interning data of any (hashable) type.
This class is intended for building a mapping of int <=> value, such
that the integer may be stored as a proxy for the real value, and then
the real value obtained later from the proxy value.
In order to support the use case of packing the integer value as binary,
it is possible to specify a maximum bitsize of the data; adding more items
than this allowed will result in a ValueError exception.
The zero value is reserved to use as a sentinal."""
type_conv = None
rev_type_conv = None
def __init__(self, max_bits=8):
self.max_idx = 2**max_bits - 2
# Reserve 0 as a sentinal
self._data = [None], {}
def clear(self):
self.__init__()
def store(self, obj):
if self.type_conv is not None:
obj = self.type_conv(obj)
objs, obj_to_idx = self._data
if obj not in obj_to_idx:
value = len(objs)
objs.append(obj)
obj_to_idx[obj] = value
if value > self.max_idx:
raise ValueError
else:
value = obj_to_idx[obj]
return value
def get(self, idx):
obj = self._data[0][idx]
if self.rev_type_conv is not None:
obj = self.rev_type_conv(obj)
return obj
def __iter__(self):
for i in range(1, len(self._data[0])):
yield self.get(i)
class RunInfoInterned(InternedData):
def type_conv(self, value):
return tuple(value.items())
def rev_type_conv(self, value):
return dict(value)
prop_intern = InternedData(4)
run_info_intern = InternedData(8)
status_intern = InternedData(4)
def pack_result(data):
# As `status_intern` normally handles one status, if `known_intermittent` is present in
# the test logs, intern and store this with the `status` in an array until needed.
if not data.get("known_intermittent"):
return status_intern.store(data.get("status"))
result = array.array("B")
expected = data.get("expected")
if expected is None:
expected = data["status"]
result_parts = [data["status"], expected] + data["known_intermittent"]
for i, part in enumerate(result_parts):
value = status_intern.store(part)
if i % 2 == 0:
assert value < 16
result.append(value << 4)
else:
result[-1] += value
return result
def unpack_result(data):
if isinstance(data, int):
return (status_intern.get(data), None)
if isinstance(data, text_type):
return (data, None)
# Unpack multiple statuses into a tuple to be used in the Results named tuple below,
# separating `status` and `known_intermittent`.
results = []
for packed_value in data:
first = status_intern.get(packed_value >> 4)
second = status_intern.get(packed_value & 0x0F)
results.append(first)
if second:
results.append(second)
return ((results[0],), tuple(results[1:]))
def load_test_data(test_paths):
manifest_loader = testloader.ManifestLoader(test_paths, False)
manifests = manifest_loader.load()
id_test_map = {}
for test_manifest, paths in iteritems(manifests):
id_test_map.update(create_test_tree(paths["metadata_path"],
test_manifest))
return id_test_map
def update_from_logs(id_test_map, update_properties, disable_intermittent, update_intermittent,
remove_intermittent, full_update, *log_filenames):
updater = ExpectedUpdater(id_test_map)
for i, log_filename in enumerate(log_filenames):
print("Processing log %d/%d" % (i + 1, len(log_filenames)))
with open(log_filename) as f:
updater.update_from_log(f)
for item in update_results(id_test_map, update_properties, full_update,
disable_intermittent, update_intermittent=update_intermittent,
remove_intermittent=remove_intermittent):
yield item
def update_results(id_test_map,
update_properties,
full_update,
disable_intermittent,
update_intermittent,
remove_intermittent):
test_file_items = set(itervalues(id_test_map))
default_expected_by_type = {}
for test_type, test_cls in iteritems(wpttest.manifest_test_cls):
if test_cls.result_cls:
default_expected_by_type[(test_type, False)] = test_cls.result_cls.default_expected
if test_cls.subtest_result_cls:
default_expected_by_type[(test_type, True)] = test_cls.subtest_result_cls.default_expected
for test_file in test_file_items:
updated_expected = test_file.update(default_expected_by_type, update_properties,
full_update, disable_intermittent, update_intermittent,
remove_intermittent)
if updated_expected is not None and updated_expected.modified:
yield test_file.metadata_path, updated_expected
def directory_manifests(metadata_path):
rv = []
for dirpath, dirname, filenames in os.walk(metadata_path):
if "__dir__.ini" in filenames:
rel_path = os.path.relpath(dirpath, metadata_path)
rv.append(os.path.join(rel_path, "__dir__.ini"))
return rv
def write_new_expected(metadata_path, expected):
# Serialize the data back to a file
path = expected_path(metadata_path, expected.test_path)
if not expected.is_empty:
manifest_str = wptmanifest.serialize(expected.node,
skip_empty_data=True)
assert manifest_str != ""
dir = os.path.dirname(path)
if not os.path.exists(dir):
os.makedirs(dir)
tmp_path = path + ".tmp"
try:
with open(tmp_path, "wb") as f:
f.write(manifest_str.encode("utf8"))
if sys.version_info >= (3, 3):
os.replace(tmp_path, path)
else:
os.rename(tmp_path, path)
except (Exception, KeyboardInterrupt):
try:
os.unlink(tmp_path)
except OSError:
pass
else:
try:
os.unlink(path)
except OSError:
pass
class ExpectedUpdater(object):
def __init__(self, id_test_map):
self.id_test_map = id_test_map
self.run_info = None
self.action_map = {"suite_start": self.suite_start,
"test_start": self.test_start,
"test_status": self.test_status,
"test_end": self.test_end,
"assertion_count": self.assertion_count,
"lsan_leak": self.lsan_leak,
"mozleak_object": self.mozleak_object,
"mozleak_total": self.mozleak_total}
self.tests_visited = {}
def update_from_log(self, log_file):
# We support three possible formats:
# * wptreport format; one json object in the file, possibly pretty-printed
# * wptreport format; one run per line
# * raw log format
# Try reading a single json object in wptreport format
self.run_info = None
success = self.get_wptreport_data(log_file.read())
if success:
return
# Try line-separated json objects in wptreport format
log_file.seek(0)
for line in log_file:
success = self.get_wptreport_data(line)
if not success:
break
else:
return
# Assume the file is a raw log
log_file.seek(0)
self.update_from_raw_log(log_file)
def get_wptreport_data(self, input_str):
try:
data = json.loads(input_str)
except Exception:
pass
else:
if "action" not in data and "results" in data:
self.update_from_wptreport_log(data)
return True
return False
def update_from_raw_log(self, log_file):
action_map = self.action_map
for line in log_file:
try:
data = json.loads(line)
except ValueError:
# Just skip lines that aren't json
continue
action = data["action"]
if action in action_map:
action_map[action](data)
def update_from_wptreport_log(self, data):
action_map = self.action_map
action_map["suite_start"]({"run_info": data["run_info"]})
for test in data["results"]:
action_map["test_start"]({"test": test["test"]})
for subtest in test["subtests"]:
action_map["test_status"]({"test": test["test"],
"subtest": subtest["name"],
"status": subtest["status"],
"expected": subtest.get("expected"),
"known_intermittent": subtest.get("known_intermittent", [])})
action_map["test_end"]({"test": test["test"],
"status": test["status"],
"expected": test.get("expected"),
"known_intermittent": test.get("known_intermittent", [])})
if "asserts" in test:
asserts = test["asserts"]
action_map["assertion_count"]({"test": test["test"],
"count": asserts["count"],
"min_expected": asserts["min"],
"max_expected": asserts["max"]})
for item in data.get("lsan_leaks", []):
action_map["lsan_leak"](item)
mozleak_data = data.get("mozleak", {})
for scope, scope_data in iteritems(mozleak_data):
for key, action in [("objects", "mozleak_object"),
("total", "mozleak_total")]:
for item in scope_data.get(key, []):
item_data = {"scope": scope}
item_data.update(item)
action_map[action](item_data)
def suite_start(self, data):
self.run_info = run_info_intern.store(RunInfo(data["run_info"]))
def test_start(self, data):
test_id = intern(ensure_str(data["test"]))
try:
self.id_test_map[test_id]
except KeyError:
print("Test not found %s, skipping" % test_id)
return
self.tests_visited[test_id] = set()
def test_status(self, data):
test_id = intern(ensure_str(data["test"]))
subtest = intern(ensure_str(data["subtest"]))
test_data = self.id_test_map.get(test_id)
if test_data is None:
return
self.tests_visited[test_id].add(subtest)
result = pack_result(data)
test_data.set(test_id, subtest, "status", self.run_info, result)
if data.get("expected") and data["expected"] != data["status"]:
test_data.set_requires_update()
def test_end(self, data):
if data["status"] == "SKIP":
return
test_id = intern(ensure_str(data["test"]))
test_data = self.id_test_map.get(test_id)
if test_data is None:
return
result = pack_result(data)
test_data.set(test_id, None, "status", self.run_info, result)
if data.get("expected") and data["expected"] != data["status"]:
test_data.set_requires_update()
del self.tests_visited[test_id]
def assertion_count(self, data):
test_id = intern(ensure_str(data["test"]))
test_data = self.id_test_map.get(test_id)
if test_data is None:
return
test_data.set(test_id, None, "asserts", self.run_info, data["count"])
if data["count"] < data["min_expected"] or data["count"] > data["max_expected"]:
test_data.set_requires_update()
def test_for_scope(self, data):
dir_path = data.get("scope", "/")
dir_id = intern(ensure_str(os.path.join(dir_path, "__dir__").replace(os.path.sep, "/")))
if dir_id.startswith("/"):
dir_id = dir_id[1:]
return dir_id, self.id_test_map[dir_id]
def lsan_leak(self, data):
if data["scope"] == "/":
logger.warning("Not updating lsan annotations for root scope")
return
dir_id, test_data = self.test_for_scope(data)
test_data.set(dir_id, None, "lsan",
self.run_info, (data["frames"], data.get("allowed_match")))
if not data.get("allowed_match"):
test_data.set_requires_update()
def mozleak_object(self, data):
if data["scope"] == "/":
logger.warning("Not updating mozleak annotations for root scope")
return
dir_id, test_data = self.test_for_scope(data)
test_data.set(dir_id, None, "leak-object",
self.run_info, ("%s:%s", (data["process"], data["name"]),
data.get("allowed")))
if not data.get("allowed"):
test_data.set_requires_update()
def mozleak_total(self, data):
if data["scope"] == "/":
logger.warning("Not updating mozleak annotations for root scope")
return
if data["bytes"]:
dir_id, test_data = self.test_for_scope(data)
test_data.set(dir_id, None, "leak-threshold",
self.run_info, (data["process"], data["bytes"], data["threshold"]))
if data["bytes"] > data["threshold"] or data["bytes"] < 0:
test_data.set_requires_update()
def create_test_tree(metadata_path, test_manifest):
"""Create a map of test_id to TestFileData for that test.
"""
do_delayed_imports()
id_test_map = {}
exclude_types = frozenset(["manual", "support", "conformancechecker"])
all_types = set(manifestitem.item_types.keys())
assert all_types > exclude_types
include_types = all_types - exclude_types
for item_type, test_path, tests in test_manifest.itertypes(*include_types):
test_file_data = TestFileData(intern(ensure_str(test_manifest.url_base)),
intern(ensure_str(item_type)),
metadata_path,
test_path,
tests)
for test in tests:
id_test_map[intern(ensure_str(test.id))] = test_file_data
dir_path = os.path.dirname(test_path)
while True:
dir_meta_path = os.path.join(dir_path, "__dir__")
dir_id = (test_manifest.url_base + dir_meta_path.replace(os.path.sep, "/")).lstrip("/")
if dir_id in id_test_map:
break
test_file_data = TestFileData(intern(ensure_str(test_manifest.url_base)),
None,
metadata_path,
dir_meta_path,
[])
id_test_map[dir_id] = test_file_data
dir_path = os.path.dirname(dir_path)
if not dir_path:
break
return id_test_map
class PackedResultList(object):
"""Class for storing test results.
Results are stored as an array of 2-byte integers for compactness.
The first 4 bits represent the property name, the second 4 bits
represent the test status (if it's a result with a status code), and
the final 8 bits represent the run_info. If the result doesn't have a
simple status code but instead a richer type, we place that richer type
in a dictionary and set the status part of the result type to 0.
This class depends on the global prop_intern, run_info_intern and
status_intern InteredData objects to convert between the bit values
and corresponding Python objects."""
def __init__(self):
self.data = array.array("H")
__slots__ = ("data", "raw_data")
def append(self, prop, run_info, value):
out_val = (prop << 12) + run_info
if prop == prop_intern.store("status") and isinstance(value, int):
out_val += value << 8
else:
if not hasattr(self, "raw_data"):
self.raw_data = {}
self.raw_data[len(self.data)] = value
self.data.append(out_val)
def unpack(self, idx, packed):
prop = prop_intern.get((packed & 0xF000) >> 12)
value_idx = (packed & 0x0F00) >> 8
if value_idx == 0:
value = self.raw_data[idx]
else:
value = status_intern.get(value_idx)
run_info = run_info_intern.get(packed & 0x00FF)
return prop, run_info, value
def __iter__(self):
for i, item in enumerate(self.data):
yield self.unpack(i, item)
class TestFileData(object):
__slots__ = ("url_base", "item_type", "test_path", "metadata_path", "tests",
"_requires_update", "data")
def __init__(self, url_base, item_type, metadata_path, test_path, tests):
self.url_base = url_base
self.item_type = item_type
self.test_path = test_path
self.metadata_path = metadata_path
self.tests = {intern(ensure_str(item.id)) for item in tests}
self._requires_update = False
self.data = defaultdict(lambda: defaultdict(PackedResultList))
def set_requires_update(self):
self._requires_update = True
@property
def requires_update(self):
return self._requires_update
def set(self, test_id, subtest_id, prop, run_info, value):
self.data[test_id][subtest_id].append(prop_intern.store(prop),
run_info,
value)
def expected(self, update_properties, update_intermittent, remove_intermittent):
expected_data = load_expected(self.url_base,
self.metadata_path,
self.test_path,
self.tests,
update_properties,
update_intermittent,
remove_intermittent)
if expected_data is None:
expected_data = create_expected(self.url_base,
self.test_path,
update_properties,
update_intermittent,
remove_intermittent)
return expected_data
def is_disabled(self, test):
# This conservatively assumes that anything that was disabled remains disabled
# we could probably do better by checking if it's in the full set of run infos
return test.has_key("disabled")
def orphan_subtests(self, expected):
# Return subtest nodes present in the expected file, but missing from the data
rv = []
for test_id, subtests in iteritems(self.data):
test = expected.get_test(ensure_text(test_id))
if not test:
continue
seen_subtests = set(ensure_text(item) for item in iterkeys(subtests) if item is not None)
missing_subtests = set(test.subtests.keys()) - seen_subtests
for item in missing_subtests:
expected_subtest = test.get_subtest(item)
if not self.is_disabled(expected_subtest):
rv.append(expected_subtest)
for name in seen_subtests:
subtest = test.get_subtest(name)
# If any of the items have children (ie subsubtests) we want to prune thes
if subtest.children:
rv.extend(subtest.children)
return rv
def filter_unknown_props(self, update_properties, subtests):
# Remove subtests which have some conditions that aren't in update_properties
# since removing these may be inappropriate
top_level_props, dependent_props = update_properties
all_properties = set(top_level_props)
for item in itervalues(dependent_props):
all_properties |= set(item)
filtered = []
for subtest in subtests:
include = True
for key, _ in subtest.iter_properties():
conditions = subtest.get_conditions(key)
for condition in conditions:
if not condition.variables.issubset(all_properties):
include = False
break
if not include:
break
if include:
filtered.append(subtest)
return filtered
def update(self, default_expected_by_type, update_properties,
full_update=False, disable_intermittent=None, update_intermittent=False,
remove_intermittent=False):
# If we are doing a full update, we may need to prune missing nodes
# even if the expectations didn't change
if not self.requires_update and not full_update:
return
expected = self.expected(update_properties,
update_intermittent=update_intermittent,
remove_intermittent=remove_intermittent)
if full_update:
orphans = self.orphan_subtests(expected)
orphans = self.filter_unknown_props(update_properties, orphans)
if not self.requires_update and not orphans:
return
if orphans:
expected.modified = True
for item in orphans:
item.remove()
expected_by_test = {}
for test_id in self.tests:
if not expected.has_test(test_id):
expected.append(manifestupdate.TestNode.create(test_id))
test_expected = expected.get_test(test_id)
expected_by_test[test_id] = test_expected
for test_id, test_data in iteritems(self.data):
test_id = ensure_str(test_id)
for subtest_id, results_list in iteritems(test_data):
for prop, run_info, value in results_list:
# Special case directory metadata
if subtest_id is None and test_id.endswith("__dir__"):
if prop == "lsan":
expected.set_lsan(run_info, value)
elif prop == "leak-object":
expected.set_leak_object(run_info, value)
elif prop == "leak-threshold":
expected.set_leak_threshold(run_info, value)
continue
test_expected = expected_by_test[test_id]
if subtest_id is None:
item_expected = test_expected
else:
subtest_id = ensure_text(subtest_id)
item_expected = test_expected.get_subtest(subtest_id)
if prop == "status":
status, known_intermittent = unpack_result(value)
value = Result(status,
known_intermittent,
default_expected_by_type[self.item_type,
subtest_id is not None])
item_expected.set_result(run_info, value)
elif prop == "asserts":
item_expected.set_asserts(run_info, value)
expected.update(full_update=full_update,
disable_intermittent=disable_intermittent)
for test in expected.iterchildren():
for subtest in test.iterchildren():
subtest.update(full_update=full_update,
disable_intermittent=disable_intermittent)
test.update(full_update=full_update,
disable_intermittent=disable_intermittent)
return expected
Result = namedtuple("Result", ["status", "known_intermittent", "default_expected"])
def create_expected(url_base, test_path, run_info_properties, update_intermittent, remove_intermittent):
expected = manifestupdate.ExpectedManifest(None,
test_path,
url_base,
run_info_properties,
update_intermittent,
remove_intermittent)
return expected
def load_expected(url_base, metadata_path, test_path, tests, run_info_properties, update_intermittent, remove_intermittent):
expected_manifest = manifestupdate.get_manifest(metadata_path,
test_path,
url_base,
run_info_properties,
update_intermittent,
remove_intermittent)
return expected_manifest