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371 lines
14 KiB
371 lines
14 KiB
/*
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* Copyright 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "api/stats/rtc_stats.h"
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#include <cmath>
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#include <cstdint>
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#include <cstring>
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#include <iostream>
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#include "rtc_base/checks.h"
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#include "rtc_base/strings/json.h"
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#include "stats/test/rtc_test_stats.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace {
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// JSON stores numbers as floating point numbers with 53 significant bits, which
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// amounts to about 15.95 decimal digits. Thus, when comparing large numbers
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// processed by JSON, that's all the precision we should expect.
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const double JSON_EPSILON = 1e-15;
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// We do this since Google Test doesn't support relative error.
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// This is computed as follows:
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// If |a - b| / |a| < EPS, then |a - b| < |a| * EPS, so |a| * EPS is the
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// maximum expected error.
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double GetExpectedError(const double expected_value) {
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return JSON_EPSILON * fabs(expected_value);
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}
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} // namespace
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class RTCChildStats : public RTCStats {
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public:
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WEBRTC_RTCSTATS_DECL();
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RTCChildStats(const std::string& id, int64_t timestamp_us)
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: RTCStats(id, timestamp_us), child_int("childInt") {}
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RTCStatsMember<int32_t> child_int;
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};
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WEBRTC_RTCSTATS_IMPL(RTCChildStats, RTCStats, "child-stats", &child_int)
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class RTCGrandChildStats : public RTCChildStats {
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public:
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WEBRTC_RTCSTATS_DECL();
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RTCGrandChildStats(const std::string& id, int64_t timestamp_us)
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: RTCChildStats(id, timestamp_us), grandchild_int("grandchildInt") {}
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RTCStatsMember<int32_t> grandchild_int;
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};
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WEBRTC_RTCSTATS_IMPL(RTCGrandChildStats,
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RTCChildStats,
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"grandchild-stats",
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&grandchild_int)
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TEST(RTCStatsTest, RTCStatsAndMembers) {
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RTCTestStats stats("testId", 42);
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EXPECT_EQ(stats.id(), "testId");
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EXPECT_EQ(stats.timestamp_us(), static_cast<int64_t>(42));
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std::vector<const RTCStatsMemberInterface*> members = stats.Members();
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EXPECT_EQ(members.size(), static_cast<size_t>(14));
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for (const RTCStatsMemberInterface* member : members) {
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EXPECT_FALSE(member->is_defined());
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}
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stats.m_bool = true;
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stats.m_int32 = 123;
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stats.m_uint32 = 123;
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stats.m_int64 = 123;
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stats.m_uint64 = 123;
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stats.m_double = 123.0;
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stats.m_string = std::string("123");
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std::vector<bool> sequence_bool;
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sequence_bool.push_back(true);
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std::vector<int32_t> sequence_int32;
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sequence_int32.push_back(static_cast<int32_t>(1));
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std::vector<uint32_t> sequence_uint32;
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sequence_uint32.push_back(static_cast<uint32_t>(2));
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std::vector<int64_t> sequence_int64;
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sequence_int64.push_back(static_cast<int64_t>(3));
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std::vector<uint64_t> sequence_uint64;
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sequence_uint64.push_back(static_cast<uint64_t>(4));
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std::vector<double> sequence_double;
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sequence_double.push_back(5.0);
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std::vector<std::string> sequence_string;
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sequence_string.push_back(std::string("six"));
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stats.m_sequence_bool = sequence_bool;
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stats.m_sequence_int32 = sequence_int32;
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stats.m_sequence_uint32 = sequence_uint32;
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EXPECT_FALSE(stats.m_sequence_int64.is_defined());
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stats.m_sequence_int64 = sequence_int64;
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stats.m_sequence_uint64 = sequence_uint64;
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stats.m_sequence_double = sequence_double;
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stats.m_sequence_string = sequence_string;
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for (const RTCStatsMemberInterface* member : members) {
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EXPECT_TRUE(member->is_defined());
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}
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EXPECT_EQ(*stats.m_bool, true);
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EXPECT_EQ(*stats.m_int32, static_cast<int32_t>(123));
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EXPECT_EQ(*stats.m_uint32, static_cast<uint32_t>(123));
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EXPECT_EQ(*stats.m_int64, static_cast<int64_t>(123));
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EXPECT_EQ(*stats.m_uint64, static_cast<uint64_t>(123));
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EXPECT_EQ(*stats.m_double, 123.0);
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EXPECT_EQ(*stats.m_string, std::string("123"));
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EXPECT_EQ(*stats.m_sequence_bool, sequence_bool);
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EXPECT_EQ(*stats.m_sequence_int32, sequence_int32);
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EXPECT_EQ(*stats.m_sequence_uint32, sequence_uint32);
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EXPECT_EQ(*stats.m_sequence_int64, sequence_int64);
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EXPECT_EQ(*stats.m_sequence_uint64, sequence_uint64);
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EXPECT_EQ(*stats.m_sequence_double, sequence_double);
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EXPECT_EQ(*stats.m_sequence_string, sequence_string);
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int32_t numbers[] = {4, 8, 15, 16, 23, 42};
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std::vector<int32_t> numbers_sequence(&numbers[0], &numbers[6]);
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stats.m_sequence_int32->clear();
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stats.m_sequence_int32->insert(stats.m_sequence_int32->end(),
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numbers_sequence.begin(),
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numbers_sequence.end());
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EXPECT_EQ(*stats.m_sequence_int32, numbers_sequence);
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}
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TEST(RTCStatsTest, EqualityOperator) {
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RTCTestStats empty_stats("testId", 123);
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EXPECT_EQ(empty_stats, empty_stats);
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RTCTestStats stats_with_all_values = empty_stats;
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stats_with_all_values.m_bool = true;
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stats_with_all_values.m_int32 = 123;
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stats_with_all_values.m_uint32 = 123;
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stats_with_all_values.m_int64 = 123;
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stats_with_all_values.m_uint64 = 123;
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stats_with_all_values.m_double = 123.0;
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stats_with_all_values.m_string = "123";
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stats_with_all_values.m_sequence_bool = std::vector<bool>();
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stats_with_all_values.m_sequence_int32 = std::vector<int32_t>();
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stats_with_all_values.m_sequence_uint32 = std::vector<uint32_t>();
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stats_with_all_values.m_sequence_int64 = std::vector<int64_t>();
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stats_with_all_values.m_sequence_uint64 = std::vector<uint64_t>();
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stats_with_all_values.m_sequence_double = std::vector<double>();
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stats_with_all_values.m_sequence_string = std::vector<std::string>();
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EXPECT_NE(stats_with_all_values, empty_stats);
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EXPECT_EQ(stats_with_all_values, stats_with_all_values);
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EXPECT_NE(stats_with_all_values.m_int32, stats_with_all_values.m_uint32);
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RTCTestStats one_member_different[] = {
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stats_with_all_values, stats_with_all_values, stats_with_all_values,
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stats_with_all_values, stats_with_all_values, stats_with_all_values,
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stats_with_all_values, stats_with_all_values, stats_with_all_values,
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stats_with_all_values, stats_with_all_values, stats_with_all_values,
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stats_with_all_values, stats_with_all_values,
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};
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for (size_t i = 0; i < 14; ++i) {
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EXPECT_EQ(stats_with_all_values, one_member_different[i]);
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}
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one_member_different[0].m_bool = false;
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one_member_different[1].m_int32 = 321;
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one_member_different[2].m_uint32 = 321;
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one_member_different[3].m_int64 = 321;
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one_member_different[4].m_uint64 = 321;
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one_member_different[5].m_double = 321.0;
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one_member_different[6].m_string = "321";
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one_member_different[7].m_sequence_bool->push_back(false);
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one_member_different[8].m_sequence_int32->push_back(321);
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one_member_different[9].m_sequence_uint32->push_back(321);
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one_member_different[10].m_sequence_int64->push_back(321);
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one_member_different[11].m_sequence_uint64->push_back(321);
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one_member_different[12].m_sequence_double->push_back(321.0);
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one_member_different[13].m_sequence_string->push_back("321");
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for (size_t i = 0; i < 14; ++i) {
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EXPECT_NE(stats_with_all_values, one_member_different[i]);
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}
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RTCTestStats empty_stats_different_id("testId2", 123);
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EXPECT_NE(empty_stats, empty_stats_different_id);
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RTCTestStats empty_stats_different_timestamp("testId", 321);
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EXPECT_EQ(empty_stats, empty_stats_different_timestamp);
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RTCChildStats child("childId", 42);
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RTCGrandChildStats grandchild("grandchildId", 42);
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EXPECT_NE(child, grandchild);
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RTCChildStats stats_with_defined_member("leId", 0);
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stats_with_defined_member.child_int = 0;
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RTCChildStats stats_with_undefined_member("leId", 0);
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EXPECT_NE(stats_with_defined_member, stats_with_undefined_member);
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EXPECT_NE(stats_with_undefined_member, stats_with_defined_member);
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}
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TEST(RTCStatsTest, RTCStatsGrandChild) {
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RTCGrandChildStats stats("grandchild", 0.0);
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stats.child_int = 1;
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stats.grandchild_int = 2;
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int32_t sum = 0;
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for (const RTCStatsMemberInterface* member : stats.Members()) {
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sum += *member->cast_to<const RTCStatsMember<int32_t>>();
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}
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EXPECT_EQ(sum, static_cast<int32_t>(3));
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std::unique_ptr<RTCStats> copy_ptr = stats.copy();
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const RTCGrandChildStats& copy = copy_ptr->cast_to<RTCGrandChildStats>();
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EXPECT_EQ(*copy.child_int, *stats.child_int);
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EXPECT_EQ(*copy.grandchild_int, *stats.grandchild_int);
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}
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TEST(RTCStatsTest, RTCStatsPrintsValidJson) {
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std::string id = "statsId";
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int timestamp = 42;
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bool m_bool = true;
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int m_int32 = 123;
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int64_t m_int64 = 1234567890123456499L;
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double m_double = 123.4567890123456499;
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std::string m_string = "123";
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std::vector<bool> sequence_bool;
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std::vector<int32_t> sequence_int32;
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sequence_int32.push_back(static_cast<int32_t>(1));
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std::vector<int64_t> sequence_int64;
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sequence_int64.push_back(static_cast<int64_t>(-1234567890123456499L));
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sequence_int64.push_back(static_cast<int64_t>(1));
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sequence_int64.push_back(static_cast<int64_t>(1234567890123456499L));
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std::vector<double> sequence_double;
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sequence_double.push_back(123.4567890123456499);
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sequence_double.push_back(1234567890123.456499);
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std::vector<std::string> sequence_string;
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sequence_string.push_back(std::string("four"));
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RTCTestStats stats(id, timestamp);
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stats.m_bool = m_bool;
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stats.m_int32 = m_int32;
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stats.m_int64 = m_int64;
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stats.m_double = m_double;
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stats.m_string = m_string;
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stats.m_sequence_bool = sequence_bool;
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stats.m_sequence_int32 = sequence_int32;
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stats.m_sequence_int64 = sequence_int64;
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stats.m_sequence_double = sequence_double;
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stats.m_sequence_string = sequence_string;
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Json::Value json_output;
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EXPECT_TRUE(Json::Reader().parse(stats.ToJson(), json_output));
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EXPECT_TRUE(rtc::GetStringFromJsonObject(json_output, "id", &id));
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EXPECT_TRUE(rtc::GetIntFromJsonObject(json_output, "timestamp", ×tamp));
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EXPECT_TRUE(rtc::GetBoolFromJsonObject(json_output, "mBool", &m_bool));
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EXPECT_TRUE(rtc::GetIntFromJsonObject(json_output, "mInt32", &m_int32));
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EXPECT_TRUE(rtc::GetDoubleFromJsonObject(json_output, "mDouble", &m_double));
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EXPECT_TRUE(rtc::GetStringFromJsonObject(json_output, "mString", &m_string));
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Json::Value json_array;
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EXPECT_TRUE(
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rtc::GetValueFromJsonObject(json_output, "mSequenceBool", &json_array));
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EXPECT_TRUE(rtc::JsonArrayToBoolVector(json_array, &sequence_bool));
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EXPECT_TRUE(
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rtc::GetValueFromJsonObject(json_output, "mSequenceInt32", &json_array));
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EXPECT_TRUE(rtc::JsonArrayToIntVector(json_array, &sequence_int32));
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EXPECT_TRUE(
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rtc::GetValueFromJsonObject(json_output, "mSequenceDouble", &json_array));
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EXPECT_TRUE(rtc::JsonArrayToDoubleVector(json_array, &sequence_double));
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EXPECT_TRUE(
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rtc::GetValueFromJsonObject(json_output, "mSequenceString", &json_array));
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EXPECT_TRUE(rtc::JsonArrayToStringVector(json_array, &sequence_string));
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EXPECT_EQ(id, stats.id());
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EXPECT_EQ(timestamp, stats.timestamp_us());
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EXPECT_EQ(m_bool, *stats.m_bool);
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EXPECT_EQ(m_int32, *stats.m_int32);
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EXPECT_EQ(m_string, *stats.m_string);
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EXPECT_EQ(sequence_bool, *stats.m_sequence_bool);
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EXPECT_EQ(sequence_int32, *stats.m_sequence_int32);
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EXPECT_EQ(sequence_string, *stats.m_sequence_string);
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EXPECT_NEAR(m_double, *stats.m_double, GetExpectedError(*stats.m_double));
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EXPECT_EQ(sequence_double.size(), stats.m_sequence_double->size());
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for (size_t i = 0; i < stats.m_sequence_double->size(); ++i) {
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EXPECT_NEAR(sequence_double[i], stats.m_sequence_double->at(i),
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GetExpectedError(stats.m_sequence_double->at(i)));
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}
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// We read mInt64 as double since JSON stores all numbers as doubles, so there
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// is not enough precision to represent large numbers.
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double m_int64_as_double;
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std::vector<double> sequence_int64_as_double;
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EXPECT_TRUE(
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rtc::GetDoubleFromJsonObject(json_output, "mInt64", &m_int64_as_double));
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EXPECT_TRUE(
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rtc::GetValueFromJsonObject(json_output, "mSequenceInt64", &json_array));
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EXPECT_TRUE(
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rtc::JsonArrayToDoubleVector(json_array, &sequence_int64_as_double));
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double stats_m_int64_as_double = static_cast<double>(*stats.m_int64);
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EXPECT_NEAR(m_int64_as_double, stats_m_int64_as_double,
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GetExpectedError(stats_m_int64_as_double));
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EXPECT_EQ(sequence_int64_as_double.size(), stats.m_sequence_int64->size());
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for (size_t i = 0; i < stats.m_sequence_int64->size(); ++i) {
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const double stats_value_as_double =
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static_cast<double>((*stats.m_sequence_int64)[i]);
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EXPECT_NEAR(sequence_int64_as_double[i], stats_value_as_double,
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GetExpectedError(stats_value_as_double));
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}
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// Neither stats.m_uint32 nor stats.m_uint64 are defined, so "mUint64" and
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// "mUint32" should not be part of the generated JSON object.
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int m_uint32;
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int m_uint64;
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EXPECT_FALSE(stats.m_uint32.is_defined());
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EXPECT_FALSE(stats.m_uint64.is_defined());
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EXPECT_FALSE(rtc::GetIntFromJsonObject(json_output, "mUint32", &m_uint32));
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EXPECT_FALSE(rtc::GetIntFromJsonObject(json_output, "mUint64", &m_uint64));
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std::cout << stats.ToJson() << std::endl;
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}
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TEST(RTCStatsTest, IsStandardized) {
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RTCStatsMember<int32_t> standardized("standardized");
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RTCNonStandardStatsMember<int32_t> unstandardized("unstandardized");
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EXPECT_TRUE(standardized.is_standardized());
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EXPECT_FALSE(unstandardized.is_standardized());
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}
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TEST(RTCStatsTest, NonStandardGroupId) {
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auto group_id = NonStandardGroupId::kGroupIdForTesting;
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RTCNonStandardStatsMember<int32_t> with_group_id("stat", {group_id});
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std::vector<NonStandardGroupId> expected_ids({group_id});
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EXPECT_EQ(expected_ids, with_group_id.group_ids());
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RTCNonStandardStatsMember<int32_t> without_group_id("stat");
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EXPECT_TRUE(without_group_id.group_ids().empty());
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}
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// Death tests.
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// Disabled on Android because death tests misbehave on Android, see
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// base/test/gtest_util.h.
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#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
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TEST(RTCStatsDeathTest, ValueOfUndefinedMember) {
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RTCTestStats stats("testId", 0.0);
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EXPECT_FALSE(stats.m_int32.is_defined());
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EXPECT_DEATH(*stats.m_int32, "");
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}
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TEST(RTCStatsDeathTest, InvalidCasting) {
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RTCGrandChildStats stats("grandchild", 0.0);
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EXPECT_DEATH(stats.cast_to<RTCChildStats>(), "");
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}
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#endif // RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
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} // namespace webrtc
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