| // 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/message_loop/message_loop.h" |
| #include "base/run_loop.h" |
| #include "mojo/public/cpp/bindings/binding.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace metrics { |
| |
| class ChildCallStackProfileCollectorTest : public testing::Test { |
| protected: |
| class Receiver : public mojom::CallStackProfileCollector { |
| public: |
| explicit Receiver(mojom::CallStackProfileCollectorRequest request) |
| : binding_(this, std::move(request)) {} |
| ~Receiver() override {} |
| |
| void Collect(base::TimeTicks start_timestamp, |
| SampledProfile profile) override { |
| this->profiles.push_back(ChildCallStackProfileCollector::ProfileState( |
| start_timestamp, std::move(profile))); |
| } |
| |
| std::vector<ChildCallStackProfileCollector::ProfileState> profiles; |
| |
| private: |
| mojo::Binding<mojom::CallStackProfileCollector> binding_; |
| |
| DISALLOW_COPY_AND_ASSIGN(Receiver); |
| }; |
| |
| ChildCallStackProfileCollectorTest() |
| : receiver_impl_(new Receiver(MakeRequest(&receiver_))) {} |
| |
| void CollectEmptyProfile() { |
| child_collector_.Collect(base::TimeTicks::Now(), SampledProfile()); |
| } |
| |
| const std::vector<ChildCallStackProfileCollector::ProfileState>& profiles() |
| const { |
| return child_collector_.profiles_; |
| } |
| |
| base::MessageLoop loop_; |
| mojom::CallStackProfileCollectorPtr receiver_; |
| std::unique_ptr<Receiver> receiver_impl_; |
| ChildCallStackProfileCollector child_collector_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(ChildCallStackProfileCollectorTest); |
| }; |
| |
| // Test the behavior when an interface is provided. |
| TEST_F(ChildCallStackProfileCollectorTest, InterfaceProvided) { |
| EXPECT_EQ(0u, profiles().size()); |
| |
| // Add a profile before providing the interface. |
| CollectEmptyProfile(); |
| ASSERT_EQ(1u, profiles().size()); |
| base::TimeTicks start_timestamp = profiles()[0].start_timestamp; |
| EXPECT_GE(base::TimeDelta::FromMilliseconds(10), |
| base::TimeTicks::Now() - start_timestamp); |
| |
| // Set the interface. The profiles should be passed to it. |
| child_collector_.SetParentProfileCollector(std::move(receiver_)); |
| base::RunLoop().RunUntilIdle(); |
| EXPECT_EQ(0u, profiles().size()); |
| ASSERT_EQ(1u, receiver_impl_->profiles.size()); |
| EXPECT_EQ(start_timestamp, receiver_impl_->profiles[0].start_timestamp); |
| |
| // Add a profile after providing the interface. It should also be passed. |
| receiver_impl_->profiles.clear(); |
| CollectEmptyProfile(); |
| base::RunLoop().RunUntilIdle(); |
| EXPECT_EQ(0u, profiles().size()); |
| ASSERT_EQ(1u, receiver_impl_->profiles.size()); |
| EXPECT_GE(base::TimeDelta::FromMilliseconds(10), |
| (base::TimeTicks::Now() - |
| receiver_impl_->profiles[0].start_timestamp)); |
| } |
| |
| TEST_F(ChildCallStackProfileCollectorTest, InterfaceNotProvided) { |
| EXPECT_EQ(0u, profiles().size()); |
| |
| // Add a profile before providing a null interface. |
| CollectEmptyProfile(); |
| ASSERT_EQ(1u, profiles().size()); |
| EXPECT_GE(base::TimeDelta::FromMilliseconds(10), |
| base::TimeTicks::Now() - profiles()[0].start_timestamp); |
| |
| // Set the null interface. The profile should be flushed. |
| child_collector_.SetParentProfileCollector( |
| mojom::CallStackProfileCollectorPtr()); |
| base::RunLoop().RunUntilIdle(); |
| EXPECT_EQ(0u, profiles().size()); |
| |
| // Add a profile after providing a null interface. They should also be |
| // flushed. |
| CollectEmptyProfile(); |
| EXPECT_EQ(0u, profiles().size()); |
| } |
| |
| } // namespace metrics |