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/*
* Copyright (c) 2023 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 "rtc_tools/rtc_event_log_visualizer/analyzer_bindings.h"
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <string>
#include <vector>
#include "absl/types/optional.h"
#include "rtc_base/protobuf_utils.h"
#include "rtc_base/system/file_wrapper.h"
#include "test/gtest.h"
#include "test/testsupport/file_utils.h"
#ifdef WEBRTC_ANDROID_PLATFORM_BUILD
#include "external/webrtc/webrtc/rtc_tools/rtc_event_log_visualizer/proto/chart.pb.h"
#else
#include "rtc_tools/rtc_event_log_visualizer/proto/chart.pb.h"
#endif
class RtcEventLogAnalyzerBindingsTest : public ::testing::Test {
void SetUp() override {
// Read an RTC event log to a char buffer.
std::string file_name = webrtc::test::ResourcePath(
"rtc_event_log/rtc_event_log_500kbps", "binarypb");
webrtc::FileWrapper file = webrtc::FileWrapper::OpenReadOnly(file_name);
ASSERT_TRUE(file.is_open());
absl::optional<size_t> file_size = file.FileSize();
ASSERT_TRUE(file_size.has_value());
constexpr size_t kMaxFileSize = 1'000'000;
ASSERT_GT(*file_size, 0u);
ASSERT_LE(*file_size, kMaxFileSize);
event_log_contents_.resize(*file_size);
size_t read_size =
file.Read(event_log_contents_.data(), event_log_contents_.size());
ASSERT_EQ(*file_size, read_size);
}
protected:
std::vector<char> event_log_contents_;
};
TEST_F(RtcEventLogAnalyzerBindingsTest, OutgoingBitrateChart) {
uint32_t kMaxOutputSize = 1'000'000;
std::vector<char> output(kMaxOutputSize);
// Call analyzer.
char selection[] = "outgoing_bitrate";
size_t selection_size = strlen(selection);
uint32_t output_size = output.size();
analyze_rtc_event_log(event_log_contents_.data(), event_log_contents_.size(),
selection, selection_size, output.data(), &output_size);
ASSERT_GT(output_size, 0u);
// Parse output as charts.
webrtc::analytics::ChartCollection collection;
bool success =
collection.ParseFromArray(output.data(), static_cast<int>(output_size));
ASSERT_TRUE(success);
ASSERT_EQ(collection.charts().size(), 1);
EXPECT_EQ(collection.charts(0).title(), "Outgoing RTP bitrate");
EXPECT_EQ(collection.charts(0).id(), "outgoing_bitrate");
}
TEST_F(RtcEventLogAnalyzerBindingsTest, NetWorkDelayFeedbackChart) {
uint32_t kMaxOutputSize = 1'000'000;
std::vector<char> output(kMaxOutputSize);
// Call analyzer.
char selection[] = "network_delay_feedback";
size_t selection_size = strlen(selection);
uint32_t output_size = output.size();
analyze_rtc_event_log(event_log_contents_.data(), event_log_contents_.size(),
selection, selection_size, output.data(), &output_size);
ASSERT_GT(output_size, 0u);
// Parse output as charts.
webrtc::analytics::ChartCollection collection;
bool success =
collection.ParseFromArray(output.data(), static_cast<int>(output_size));
ASSERT_TRUE(success);
ASSERT_EQ(collection.charts().size(), 1);
EXPECT_EQ(collection.charts(0).title(),
"Outgoing network delay (based on per-packet feedback)");
EXPECT_EQ(collection.charts(0).id(), "network_delay_feedback");
}
TEST_F(RtcEventLogAnalyzerBindingsTest, OutputbufferTooSmall) {
uint32_t kMaxOutputSize = 100;
std::vector<char> output(kMaxOutputSize);
// Call analyzer.
char selection[] = "outgoing_bitrate";
size_t selection_size = strlen(selection);
uint32_t output_size = output.size();
analyze_rtc_event_log(event_log_contents_.data(), event_log_contents_.size(),
selection, selection_size, output.data(), &output_size);
// No output since the buffer is too small.
ASSERT_EQ(output_size, 0u);
}