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# Copyright 2022 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import optparse
import os
import random
from functools import cached_property
from testrunner.testproc import fuzzer
class AugmentedOptions(optparse.Values):
"""This class will augment exiting options object with
a couple of convenient methods and properties.
"""
@staticmethod
def augment(options_object):
options_object.__class__ = AugmentedOptions
return options_object
def fuzzer_rng(self):
if not getattr(self,'_fuzzer_rng', None):
self._fuzzer_rng = random.Random(self.fuzzer_random_seed)
return self._fuzzer_rng
@cached_property
def shard_info(self):
"""
Returns pair:
(id of the current shard [1; number of shards], number of shards)
"""
# Read gtest shard configuration from environment (e.g. set by swarming).
# If none is present, use values passed on the command line.
count = int(
os.environ.get('GTEST_TOTAL_SHARDS', self.shard_count))
run = os.environ.get('GTEST_SHARD_INDEX')
# The v8 shard_run starts at 1, while GTEST_SHARD_INDEX starts at 0.
run = int(run) + 1 if run else self.shard_run
if self.shard_count > 1:
# Log if a value was passed on the cmd line and it differs from the
# environment variables.
if self.shard_count != count: # pragma: no cover
print("shard_count from cmd line differs from environment variable "
"GTEST_TOTAL_SHARDS")
if (self.shard_run > 1 and
self.shard_run != run): # pragma: no cover
print("shard_run from cmd line differs from environment variable "
"GTEST_SHARD_INDEX")
if run < 1 or run > count:
# TODO(machenbach): Turn this into an assert. If that's wrong on the
# bots, printing will be quite useless. Or refactor this code to make
# sure we get a return code != 0 after testing if we got here.
print("shard-run not a valid number, should be in [1:shard-count]")
print("defaulting back to running all tests")
return 0, 1
return run - 1, count # coming back to 0 based counting
def fuzzer_configs(self):
fuzzers = []
def add(name, prob):
if prob:
fuzzers.append(fuzzer.create_fuzzer_config(name, prob))
add('allocation', self.allocation_offset)
add('compaction', self.stress_compaction)
add('interrupt', self.stress_interrupt_budget)
add('marking', self.stress_marking)
add('scavenge', self.stress_scavenge)
add('gc_interval', self.stress_gc)
add('stack', self.stress_stack_size)
add('threads', self.stress_thread_pool_size)
add('delay', self.stress_delay_tasks)
add('deopt', self.stress_deopt)
return fuzzers
def fuzzer_tests_count(self):
if self.combine_tests:
return 1
return self.tests_count
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