| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "components/metrics/child_call_stack_profile_collector.h" |
| |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/run_loop.h" |
| #include "base/test/task_environment.h" |
| #include "base/time/time.h" |
| #include "components/metrics/public/mojom/call_stack_profile_collector.mojom.h" |
| #include "mojo/public/cpp/bindings/pending_receiver.h" |
| #include "mojo/public/cpp/bindings/receiver.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/metrics_proto/sampled_profile.pb.h" |
| |
| namespace metrics { |
| |
| class ChildCallStackProfileCollectorTest : public ::testing::Test { |
| protected: |
| struct ReceivedProfile { |
| base::TimeTicks start_timestamp; |
| mojom::ProfileType profile_type; |
| }; |
| |
| class Receiver : public mojom::CallStackProfileCollector { |
| public: |
| explicit Receiver( |
| mojo::PendingReceiver<mojom::CallStackProfileCollector> receiver) |
| : receiver_(this, std::move(receiver)) {} |
| |
| Receiver(const Receiver&) = delete; |
| Receiver& operator=(const Receiver&) = delete; |
| |
| ~Receiver() override {} |
| |
| void Collect(base::TimeTicks start_timestamp, |
| mojom::ProfileType profile_type, |
| mojom::SampledProfilePtr profile) override { |
| profiles_.push_back({start_timestamp, profile_type}); |
| } |
| |
| std::vector<ReceivedProfile>& profiles() { return profiles_; } |
| |
| private: |
| mojo::Receiver<mojom::CallStackProfileCollector> receiver_; |
| std::vector<ReceivedProfile> profiles_; |
| }; |
| |
| ChildCallStackProfileCollectorTest() |
| : receiver_impl_(std::make_unique<Receiver>( |
| collector_remote_.InitWithNewPipeAndPassReceiver())) {} |
| |
| ChildCallStackProfileCollectorTest( |
| const ChildCallStackProfileCollectorTest&) = delete; |
| ChildCallStackProfileCollectorTest& operator=( |
| const ChildCallStackProfileCollectorTest&) = delete; |
| |
| // Collects a profile and returns its start timestamp. |
| base::TimeTicks CollectProfile(SampledProfile::TriggerEvent trigger_event) { |
| base::TimeTicks start_timestamp = task_environment_.NowTicks(); |
| SampledProfile profile; |
| profile.set_trigger_event(trigger_event); |
| child_collector_.Collect(start_timestamp, std::move(profile)); |
| return start_timestamp; |
| } |
| |
| void ExpectProfile(const ReceivedProfile& profile, |
| base::TimeTicks expected_start_timestamp, |
| mojom::ProfileType expected_profile_type) { |
| EXPECT_EQ(expected_start_timestamp, profile.start_timestamp); |
| EXPECT_EQ(expected_profile_type, profile.profile_type); |
| } |
| |
| void ExpectProfile( |
| const ChildCallStackProfileCollector::ProfileState& profile, |
| base::TimeTicks expected_start_timestamp, |
| mojom::ProfileType expected_profile_type) { |
| EXPECT_EQ(expected_start_timestamp, profile.start_timestamp); |
| EXPECT_EQ(expected_profile_type, profile.profile_type); |
| } |
| |
| const std::vector<ChildCallStackProfileCollector::ProfileState>& profiles() |
| const { |
| return child_collector_.profiles_; |
| } |
| |
| base::test::SingleThreadTaskEnvironment task_environment_{ |
| base::test::TaskEnvironment::TimeSource::MOCK_TIME}; |
| mojo::PendingRemote<mojom::CallStackProfileCollector> collector_remote_; |
| std::unique_ptr<Receiver> receiver_impl_; |
| ChildCallStackProfileCollector child_collector_; |
| }; |
| |
| // Test the behavior when an interface is provided. |
| TEST_F(ChildCallStackProfileCollectorTest, InterfaceProvided) { |
| EXPECT_EQ(0u, profiles().size()); |
| |
| // Add a profile before providing the interface. |
| base::TimeTicks start_timestamp = |
| CollectProfile(SampledProfile::PERIODIC_COLLECTION); |
| ASSERT_EQ(1u, profiles().size()); |
| ExpectProfile(profiles()[0], start_timestamp, mojom::ProfileType::kCPU); |
| |
| // Set the interface. The profiles should be passed to it. |
| child_collector_.SetParentProfileCollector(std::move(collector_remote_)); |
| task_environment_.FastForwardBy(base::Milliseconds(1)); |
| EXPECT_EQ(0u, profiles().size()); |
| ASSERT_EQ(1u, receiver_impl_->profiles().size()); |
| ExpectProfile(receiver_impl_->profiles()[0], start_timestamp, |
| mojom::ProfileType::kCPU); |
| |
| // Add a profile after providing the interface. It should also be passed. |
| receiver_impl_->profiles().clear(); |
| base::TimeTicks start_timestamp2 = |
| CollectProfile(SampledProfile::PERIODIC_COLLECTION); |
| task_environment_.FastForwardBy(base::Milliseconds(1)); |
| EXPECT_EQ(0u, profiles().size()); |
| ASSERT_EQ(1u, receiver_impl_->profiles().size()); |
| ExpectProfile(receiver_impl_->profiles()[0], start_timestamp2, |
| mojom::ProfileType::kCPU); |
| } |
| |
| TEST_F(ChildCallStackProfileCollectorTest, InterfaceNotProvided) { |
| EXPECT_EQ(0u, profiles().size()); |
| |
| // Add a profile before providing a null interface. |
| base::TimeTicks start_timestamp = |
| CollectProfile(SampledProfile::PERIODIC_COLLECTION); |
| ASSERT_EQ(1u, profiles().size()); |
| ExpectProfile(profiles()[0], start_timestamp, mojom::ProfileType::kCPU); |
| |
| // Set the null interface. The profile should be flushed. |
| child_collector_.SetParentProfileCollector(mojo::NullRemote()); |
| task_environment_.FastForwardBy(base::Milliseconds(1)); |
| EXPECT_EQ(0u, profiles().size()); |
| EXPECT_EQ(0u, receiver_impl_->profiles().size()); |
| |
| // Add a profile after providing a null interface. They should also be |
| // flushed. |
| CollectProfile(SampledProfile::PERIODIC_COLLECTION); |
| task_environment_.FastForwardBy(base::Milliseconds(1)); |
| EXPECT_EQ(0u, profiles().size()); |
| EXPECT_EQ(0u, receiver_impl_->profiles().size()); |
| } |
| |
| // Tests that the `profile_type` parameter is set correctly when heap profiles |
| // pass through the interface. |
| TEST_F(ChildCallStackProfileCollectorTest, HeapProfiles) { |
| EXPECT_EQ(0u, profiles().size()); |
| |
| // Add a profile before providing the interface. |
| base::TimeTicks start_timestamp = |
| CollectProfile(SampledProfile::PERIODIC_HEAP_COLLECTION); |
| ASSERT_EQ(1u, profiles().size()); |
| ExpectProfile(profiles()[0], start_timestamp, mojom::ProfileType::kHeap); |
| |
| // Set the interface. The profile type should pass to it unchanged. |
| child_collector_.SetParentProfileCollector(std::move(collector_remote_)); |
| task_environment_.FastForwardBy(base::Milliseconds(1)); |
| ASSERT_EQ(1u, receiver_impl_->profiles().size()); |
| ExpectProfile(receiver_impl_->profiles()[0], start_timestamp, |
| mojom::ProfileType::kHeap); |
| } |
| |
| } // namespace metrics |