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/*
* Copyright (c) 2018 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 "logging/rtc_event_log/rtc_event_processor.h"
#include <stddef.h>
#include <cstdint>
#include <initializer_list>
#include <numeric>
#include "absl/memory/memory.h"
#include "logging/rtc_event_log/rtc_event_log_parser.h"
#include "rtc_base/checks.h"
#include "rtc_base/random.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
std::vector<LoggedStartEvent> CreateEventList(
std::initializer_list<int64_t> timestamp_list) {
std::vector<LoggedStartEvent> v;
for (int64_t timestamp_ms : timestamp_list) {
v.emplace_back(Timestamp::Millis(timestamp_ms));
}
return v;
}
std::vector<std::vector<LoggedStartEvent>>
CreateRandomEventLists(size_t num_lists, size_t num_elements, uint64_t seed) {
Random prng(seed);
std::vector<std::vector<LoggedStartEvent>> lists(num_lists);
for (size_t elem = 0; elem < num_elements; elem++) {
uint32_t i = prng.Rand(0u, num_lists - 1);
int64_t timestamp_ms = elem;
lists[i].emplace_back(Timestamp::Millis(timestamp_ms));
}
return lists;
}
} // namespace
TEST(RtcEventProcessor, NoList) {
RtcEventProcessor processor;
processor.ProcessEventsInOrder(); // Don't crash but do nothing.
}
TEST(RtcEventProcessor, EmptyList) {
auto not_called = [](LoggedStartEvent /*elem*/) { EXPECT_TRUE(false); };
std::vector<LoggedStartEvent> events;
RtcEventProcessor processor;
processor.AddEvents(events, not_called);
processor.ProcessEventsInOrder(); // Don't crash but do nothing.
}
TEST(RtcEventProcessor, OneList) {
std::vector<LoggedStartEvent> result;
auto f = [&result](LoggedStartEvent elem) { result.push_back(elem); };
std::vector<LoggedStartEvent> events(CreateEventList({1, 2, 3, 4}));
RtcEventProcessor processor;
processor.AddEvents(events, f);
processor.ProcessEventsInOrder();
std::vector<int64_t> expected_results{1, 2, 3, 4};
ASSERT_EQ(result.size(), expected_results.size());
for (size_t i = 0; i < expected_results.size(); i++) {
EXPECT_EQ(result[i].log_time_ms(), expected_results[i]);
}
}
TEST(RtcEventProcessor, MergeTwoLists) {
std::vector<LoggedStartEvent> result;
auto f = [&result](LoggedStartEvent elem) { result.push_back(elem); };
std::vector<LoggedStartEvent> events1(CreateEventList({1, 2, 4, 7, 8, 9}));
std::vector<LoggedStartEvent> events2(CreateEventList({3, 5, 6, 10}));
RtcEventProcessor processor;
processor.AddEvents(events1, f);
processor.AddEvents(events2, f);
processor.ProcessEventsInOrder();
std::vector<int64_t> expected_results{1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
ASSERT_EQ(result.size(), expected_results.size());
for (size_t i = 0; i < expected_results.size(); i++) {
EXPECT_EQ(result[i].log_time_ms(), expected_results[i]);
}
}
TEST(RtcEventProcessor, MergeTwoListsWithDuplicatedElements) {
std::vector<LoggedStartEvent> result;
auto f = [&result](LoggedStartEvent elem) { result.push_back(elem); };
std::vector<LoggedStartEvent> events1(CreateEventList({1, 2, 2, 3, 5, 5}));
std::vector<LoggedStartEvent> events2(CreateEventList({1, 3, 4, 4}));
RtcEventProcessor processor;
processor.AddEvents(events1, f);
processor.AddEvents(events2, f);
processor.ProcessEventsInOrder();
std::vector<int64_t> expected_results{1, 1, 2, 2, 3, 3, 4, 4, 5, 5};
ASSERT_EQ(result.size(), expected_results.size());
for (size_t i = 0; i < expected_results.size(); i++) {
EXPECT_EQ(result[i].log_time_ms(), expected_results[i]);
}
}
TEST(RtcEventProcessor, MergeManyLists) {
std::vector<LoggedStartEvent> result;
auto f = [&result](LoggedStartEvent elem) { result.push_back(elem); };
constexpr size_t kNumLists = 5;
constexpr size_t kNumElems = 30;
constexpr uint64_t kSeed = 0xF3C6B91F;
std::vector<std::vector<LoggedStartEvent>> lists(
CreateRandomEventLists(kNumLists, kNumElems, kSeed));
RTC_DCHECK_EQ(lists.size(), kNumLists);
RtcEventProcessor processor;
for (const auto& list : lists) {
processor.AddEvents(list, f);
}
processor.ProcessEventsInOrder();
std::vector<int64_t> expected_results(kNumElems);
std::iota(expected_results.begin(), expected_results.end(), 0);
ASSERT_EQ(result.size(), expected_results.size());
for (size_t i = 0; i < expected_results.size(); i++) {
EXPECT_EQ(result[i].log_time_ms(), expected_results[i]);
}
}
TEST(RtcEventProcessor, DifferentTypes) {
std::vector<int64_t> result;
auto f1 = [&result](LoggedStartEvent elem) {
result.push_back(elem.log_time_ms());
};
auto f2 = [&result](LoggedStopEvent elem) {
result.push_back(elem.log_time_ms());
};
std::vector<LoggedStartEvent> events1{LoggedStartEvent(Timestamp::Millis(2))};
std::vector<LoggedStopEvent> events2{LoggedStopEvent(Timestamp::Millis(1))};
RtcEventProcessor processor;
processor.AddEvents(events1, f1);
processor.AddEvents(events2, f2);
processor.ProcessEventsInOrder();
std::vector<int64_t> expected_results{1, 2};
ASSERT_EQ(result.size(), expected_results.size());
for (size_t i = 0; i < expected_results.size(); i++) {
EXPECT_EQ(result[i], expected_results[i]);
}
}
} // namespace webrtc
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