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209 lines
7.1 KiB
209 lines
7.1 KiB
/*
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* Copyright 2018 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 "pc/rtc_stats_traversal.h"
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#include <memory>
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#include <string>
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#include <vector>
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#include "api/stats/rtcstats_objects.h"
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#include "test/gtest.h"
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// This file contains tests for TakeReferencedStats().
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// GetStatsNeighborIds() is tested in rtcstats_integrationtest.cc.
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namespace webrtc {
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class RTCStatsTraversalTest : public ::testing::Test {
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public:
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RTCStatsTraversalTest() {
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transport_ = new RTCTransportStats("transport", 0);
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candidate_pair_ = new RTCIceCandidatePairStats("candidate-pair", 0);
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local_candidate_ = new RTCLocalIceCandidateStats("local-candidate", 0);
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remote_candidate_ = new RTCRemoteIceCandidateStats("remote-candidate", 0);
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initial_report_ = RTCStatsReport::Create(0);
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initial_report_->AddStats(std::unique_ptr<const RTCStats>(transport_));
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initial_report_->AddStats(std::unique_ptr<const RTCStats>(candidate_pair_));
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initial_report_->AddStats(
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std::unique_ptr<const RTCStats>(local_candidate_));
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initial_report_->AddStats(
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std::unique_ptr<const RTCStats>(remote_candidate_));
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result_ = RTCStatsReport::Create(0);
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}
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void TakeReferencedStats(std::vector<const RTCStats*> start_nodes) {
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std::vector<std::string> start_ids;
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start_ids.reserve(start_nodes.size());
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for (const RTCStats* start_node : start_nodes) {
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start_ids.push_back(start_node->id());
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}
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result_ = webrtc::TakeReferencedStats(initial_report_, start_ids);
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}
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void EXPECT_VISITED(const RTCStats* stats) {
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EXPECT_FALSE(initial_report_->Get(stats->id()))
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<< '"' << stats->id()
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<< "\" should be visited but it was not removed from initial report.";
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EXPECT_TRUE(result_->Get(stats->id()))
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<< '"' << stats->id()
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<< "\" should be visited but it was not added to the resulting report.";
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}
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void EXPECT_UNVISITED(const RTCStats* stats) {
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EXPECT_TRUE(initial_report_->Get(stats->id()))
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<< '"' << stats->id()
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<< "\" should not be visited but it was removed from initial report.";
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EXPECT_FALSE(result_->Get(stats->id()))
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<< '"' << stats->id()
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<< "\" should not be visited but it was added to the resulting report.";
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}
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protected:
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rtc::scoped_refptr<RTCStatsReport> initial_report_;
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rtc::scoped_refptr<RTCStatsReport> result_;
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// Raw pointers to stats owned by the reports.
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RTCTransportStats* transport_;
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RTCIceCandidatePairStats* candidate_pair_;
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RTCIceCandidateStats* local_candidate_;
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RTCIceCandidateStats* remote_candidate_;
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};
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TEST_F(RTCStatsTraversalTest, NoReachableConnections) {
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// Everything references transport but transport doesn't reference anything.
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//
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// candidate-pair
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// | | |
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// v | v
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// local-candidate | remote-candidate
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// | | |
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// v v v
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// start:transport
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candidate_pair_->transport_id = "transport";
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candidate_pair_->local_candidate_id = "local-candidate";
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candidate_pair_->remote_candidate_id = "remote-candidate";
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local_candidate_->transport_id = "transport";
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remote_candidate_->transport_id = "transport";
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TakeReferencedStats({transport_});
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EXPECT_VISITED(transport_);
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EXPECT_UNVISITED(candidate_pair_);
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EXPECT_UNVISITED(local_candidate_);
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EXPECT_UNVISITED(remote_candidate_);
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}
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TEST_F(RTCStatsTraversalTest, SelfReference) {
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transport_->rtcp_transport_stats_id = "transport";
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TakeReferencedStats({transport_});
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EXPECT_VISITED(transport_);
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EXPECT_UNVISITED(candidate_pair_);
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EXPECT_UNVISITED(local_candidate_);
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EXPECT_UNVISITED(remote_candidate_);
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}
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TEST_F(RTCStatsTraversalTest, BogusReference) {
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transport_->rtcp_transport_stats_id = "bogus-reference";
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TakeReferencedStats({transport_});
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EXPECT_VISITED(transport_);
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EXPECT_UNVISITED(candidate_pair_);
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EXPECT_UNVISITED(local_candidate_);
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EXPECT_UNVISITED(remote_candidate_);
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}
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TEST_F(RTCStatsTraversalTest, Tree) {
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// start:candidate-pair
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// | |
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// v v
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// local-candidate remote-candidate
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// |
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// v
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// transport
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candidate_pair_->local_candidate_id = "local-candidate";
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candidate_pair_->remote_candidate_id = "remote-candidate";
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local_candidate_->transport_id = "transport";
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TakeReferencedStats({candidate_pair_});
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EXPECT_VISITED(transport_);
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EXPECT_VISITED(candidate_pair_);
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EXPECT_VISITED(local_candidate_);
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EXPECT_VISITED(remote_candidate_);
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}
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TEST_F(RTCStatsTraversalTest, MultiplePathsToSameNode) {
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// start:candidate-pair
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// | |
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// v v
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// local-candidate remote-candidate
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// | |
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// v v
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// transport
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candidate_pair_->local_candidate_id = "local-candidate";
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candidate_pair_->remote_candidate_id = "remote-candidate";
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local_candidate_->transport_id = "transport";
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remote_candidate_->transport_id = "transport";
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TakeReferencedStats({candidate_pair_});
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EXPECT_VISITED(transport_);
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EXPECT_VISITED(candidate_pair_);
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EXPECT_VISITED(local_candidate_);
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EXPECT_VISITED(remote_candidate_);
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}
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TEST_F(RTCStatsTraversalTest, CyclicGraph) {
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// candidate-pair
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// | ^
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// v |
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// start:local-candidate | remote-candidate
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// | |
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// v |
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// transport
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local_candidate_->transport_id = "transport";
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transport_->selected_candidate_pair_id = "candidate-pair";
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candidate_pair_->local_candidate_id = "local-candidate";
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TakeReferencedStats({local_candidate_});
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EXPECT_VISITED(transport_);
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EXPECT_VISITED(candidate_pair_);
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EXPECT_VISITED(local_candidate_);
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EXPECT_UNVISITED(remote_candidate_);
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}
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TEST_F(RTCStatsTraversalTest, MultipleStarts) {
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// start:candidate-pair
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// |
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// v
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// local-candidate remote-candidate
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// |
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// v
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// start:transport
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candidate_pair_->remote_candidate_id = "remote-candidate";
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local_candidate_->transport_id = "transport";
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TakeReferencedStats({candidate_pair_, transport_});
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EXPECT_VISITED(transport_);
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EXPECT_VISITED(candidate_pair_);
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EXPECT_UNVISITED(local_candidate_);
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EXPECT_VISITED(remote_candidate_);
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}
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TEST_F(RTCStatsTraversalTest, MultipleStartsLeadingToSameNode) {
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// candidate-pair
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//
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//
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// start:local-candidate start:remote-candidate
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// | |
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// v v
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// transport
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local_candidate_->transport_id = "transport";
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remote_candidate_->transport_id = "transport";
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TakeReferencedStats({local_candidate_, remote_candidate_});
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EXPECT_VISITED(transport_);
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EXPECT_UNVISITED(candidate_pair_);
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EXPECT_VISITED(local_candidate_);
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EXPECT_VISITED(remote_candidate_);
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}
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} // namespace webrtc
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