Move webrtc/{base => rtc_base}

webrtc/base/numerics/percentile_filter_unittest.cc

-/*
- *  Copyright 2016 The WebRTC 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 in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include <algorithm>
-#include <climits>
-
-#include "webrtc/base/constructormagic.h"
-#include "webrtc/base/numerics/percentile_filter.h"
-#include "webrtc/test/gtest.h"
-
-namespace webrtc {
-
-class PercentileFilterTest : public ::testing::TestWithParam<float> {
- public:
-  PercentileFilterTest() : filter_(GetParam()) {
-    // Make sure the tests are deterministic by seeding with a constant.
-    srand(42);
-  }
-
- protected:
-  PercentileFilter<int64_t> filter_;
-
- private:
-  RTC_DISALLOW_COPY_AND_ASSIGN(PercentileFilterTest);
-};
-
-INSTANTIATE_TEST_CASE_P(PercentileFilterTests,
-                        PercentileFilterTest,
-                        ::testing::Values(0.0f, 0.1f, 0.5f, 0.9f, 1.0f));
-
-TEST(PercentileFilterTest, MinFilter) {
-  PercentileFilter<int64_t> filter(0.0f);
-  filter.Insert(4);
-  EXPECT_EQ(4, filter.GetPercentileValue());
-  filter.Insert(3);
-  EXPECT_EQ(3, filter.GetPercentileValue());
-}
-
-TEST(PercentileFilterTest, MaxFilter) {
-  PercentileFilter<int64_t> filter(1.0f);
-  filter.Insert(3);
-  EXPECT_EQ(3, filter.GetPercentileValue());
-  filter.Insert(4);
-  EXPECT_EQ(4, filter.GetPercentileValue());
-}
-
-TEST(PercentileFilterTest, MedianFilterDouble) {
-  PercentileFilter<double> filter(0.5f);
-  filter.Insert(2.71828);
-  filter.Insert(3.14159);
-  filter.Insert(1.41421);
-  EXPECT_EQ(2.71828, filter.GetPercentileValue());
-}
-
-TEST(PercentileFilterTest, MedianFilterInt) {
-  PercentileFilter<int> filter(0.5f);
-  filter.Insert(INT_MIN);
-  filter.Insert(1);
-  filter.Insert(2);
-  EXPECT_EQ(1, filter.GetPercentileValue());
-  filter.Insert(INT_MAX);
-  filter.Erase(INT_MIN);
-  EXPECT_EQ(2, filter.GetPercentileValue());
-}
-
-TEST(PercentileFilterTest, MedianFilterUnsigned) {
-  PercentileFilter<unsigned> filter(0.5f);
-  filter.Insert(UINT_MAX);
-  filter.Insert(2u);
-  filter.Insert(1u);
-  EXPECT_EQ(2u, filter.GetPercentileValue());
-  filter.Insert(0u);
-  filter.Erase(UINT_MAX);
-  EXPECT_EQ(1u, filter.GetPercentileValue());
-}
-
-TEST_P(PercentileFilterTest, EmptyFilter) {
-  EXPECT_EQ(0, filter_.GetPercentileValue());
-  filter_.Insert(3);
-  bool success = filter_.Erase(3);
-  EXPECT_TRUE(success);
-  EXPECT_EQ(0, filter_.GetPercentileValue());
-}
-
-TEST_P(PercentileFilterTest, EraseNonExistingElement) {
-  bool success = filter_.Erase(3);
-  EXPECT_FALSE(success);
-  EXPECT_EQ(0, filter_.GetPercentileValue());
-  filter_.Insert(4);
-  success = filter_.Erase(3);
-  EXPECT_FALSE(success);
-  EXPECT_EQ(4, filter_.GetPercentileValue());
-}
-
-TEST_P(PercentileFilterTest, DuplicateElements) {
-  filter_.Insert(3);
-  filter_.Insert(3);
-  filter_.Erase(3);
-  EXPECT_EQ(3, filter_.GetPercentileValue());
-}
-
-TEST_P(PercentileFilterTest, InsertAndEraseTenValuesInRandomOrder) {
-  int64_t zero_to_nine[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
-  // The percentile value of the ten values above.
-  const int64_t expected_value = static_cast<int64_t>(GetParam() * 9);
-
-  // Insert two sets of |zero_to_nine| in random order.
-  for (int i = 0; i < 2; ++i) {
-    std::random_shuffle(zero_to_nine, zero_to_nine + 10);
-    for (int64_t value : zero_to_nine)
-      filter_.Insert(value);
-    // After inserting a full set of |zero_to_nine|, the percentile should
-    // stay constant.
-    EXPECT_EQ(expected_value, filter_.GetPercentileValue());
-  }
-
-  // Insert and erase sets of |zero_to_nine| in random order a few times.
-  for (int i = 0; i < 3; ++i) {
-    std::random_shuffle(zero_to_nine, zero_to_nine + 10);
-    for (int64_t value : zero_to_nine)
-      filter_.Erase(value);
-    EXPECT_EQ(expected_value, filter_.GetPercentileValue());
-
-    std::random_shuffle(zero_to_nine, zero_to_nine + 10);
-    for (int64_t value : zero_to_nine)
-      filter_.Insert(value);
-    EXPECT_EQ(expected_value, filter_.GetPercentileValue());
-  }
-}
-
-}  // namespace webrtc