50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
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# Copyright 2018 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import random
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from collections import defaultdict
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from . import base
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from ..utils import random_utils
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class SeedProc(base.TestProcProducer):
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def __init__(self, count, seed=None):
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"""
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Args:
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count: How many subtests with different seeds to create for each test.
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0 means infinite.
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seed: seed to use. None means random seed for each subtest.
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"""
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super(SeedProc, self).__init__('Seed')
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self._count = count
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self._seed = seed
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self._last_idx = defaultdict(int)
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def setup(self, requirement=base.DROP_RESULT):
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super(SeedProc, self).setup(requirement)
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# SeedProc is optimized for dropping the result
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assert requirement == base.DROP_RESULT
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def _next_test(self, test):
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self._try_send_next_test(test)
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def _result_for(self, test, subtest, result):
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self._try_send_next_test(test)
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def _try_send_next_test(self, test):
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def create_subtest(idx):
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seed = self._seed or random_utils.random_seed()
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return self._create_subtest(test, idx, random_seed=seed)
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num = self._last_idx[test.procid]
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if not self._count or num < self._count:
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num += 1
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self._send_test(create_subtest(num))
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self._last_idx[test.procid] = num
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else:
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del self._last_idx[test.procid]
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self._send_result(test, None)
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