random-number-generator-unittest.cc

// Copyright 2014 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.

#include <algorithm>
#include <climits>

#include "src/base/utils/random-number-generator.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace v8 {
namespace base {

class RandomNumberGeneratorTest : public ::testing::TestWithParam<int> { … };

static const int kMaxRuns = …;

static void CheckSample(std::vector<uint64_t> sample, uint64_t max,
                        size_t size) { … }

static void CheckSlowSample(const std::vector<uint64_t>& sample, uint64_t max,
                            size_t size,
                            const std::unordered_set<uint64_t>& excluded) { … }

static void TestNextSample(RandomNumberGenerator* rng, uint64_t max,
                           size_t size, bool slow = false) { … }

TEST_P(RandomNumberGeneratorTest, NextIntWithMaxValue) { … }


TEST_P(RandomNumberGeneratorTest, NextBooleanReturnsFalseOrTrue) { … }


TEST_P(RandomNumberGeneratorTest, NextDoubleReturnsValueBetween0And1) { … }

#if !defined(DEBUG) && defined(OFFICIAL_BUILD)
// Official release builds strip all fatal messages for saving binary size,
// see src/base/logging.h.
#define FATAL_MSG …
#else
#define FATAL_MSG …
#endif

TEST(RandomNumberGenerator, NextSampleInvalidParam) { … }

TEST(RandomNumberGenerator, NextSampleSlowInvalidParam1) { … }

TEST(RandomNumberGenerator, NextSampleSlowInvalidParam2) { … }

#undef FATAL_MSG

TEST_P(RandomNumberGeneratorTest, NextSample0) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlow0) { … }

TEST_P(RandomNumberGeneratorTest, NextSample1) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlow1) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleMax) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlowMax) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleHalf) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlowHalf) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleMoreThanHalf) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlowMoreThanHalf) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleLessThanHalf) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlowLessThanHalf) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlowExcluded) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlowExcludedMax1) { … }

TEST_P(RandomNumberGeneratorTest, NextSampleSlowExcludedMax2) { … }

INSTANTIATE_TEST_SUITE_P(…);

}  // namespace base
}  // namespace v8
chromium/v8/test/unittests/base/utils/random-number-generator-unittest.cc
