1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef TEST_TEST_HELPER_H_
18 #define TEST_TEST_HELPER_H_
19 
20 #include "perfetto/tracing/core/consumer.h"
21 #include "perfetto/tracing/core/trace_config.h"
22 #include "perfetto/tracing/core/trace_packet.h"
23 #include "perfetto/tracing/ipc/consumer_ipc_client.h"
24 #include "src/base/test/test_task_runner.h"
25 #include "test/fake_producer.h"
26 #include "test/task_runner_thread.h"
27 
28 #include "perfetto/trace/trace_packet.pb.h"
29 
30 namespace perfetto {
31 
32 class TestHelper : public Consumer {
33  public:
34   explicit TestHelper(base::TestTaskRunner* task_runner);
35 
36   // Consumer implementation.
37   void OnConnect() override;
38   void OnDisconnect() override;
39   void OnTracingDisabled() override;
40   void OnTraceData(std::vector<TracePacket> packets, bool has_more) override;
41 
42   void StartServiceIfRequired();
43   FakeProducer* ConnectFakeProducer();
44   void ConnectConsumer();
45   void StartTracing(const TraceConfig& config);
46   void ReadData();
47 
48   void WaitForConsumerConnect();
49   void WaitForProducerEnabled();
50   void WaitForTracingDisabled();
51   void WaitForReadData();
52 
53   std::function<void()> WrapTask(const std::function<void()>& function);
54 
55   TaskRunnerThread* service_thread() { return &service_thread_; }
56   TaskRunnerThread* producer_thread() { return &producer_thread_; }
57   const std::vector<protos::TracePacket>& trace() { return trace_; }
58 
59  private:
60   base::TestTaskRunner* task_runner_ = nullptr;
61 
62   std::function<void()> on_connect_callback_;
63   std::function<void()> on_packets_finished_callback_;
64   std::function<void()> on_stop_tracing_callback_;
65 
66   std::vector<protos::TracePacket> trace_;
67 
68   TaskRunnerThread service_thread_;
69   TaskRunnerThread producer_thread_;
70   std::unique_ptr<Service::ConsumerEndpoint> endpoint_;  // Keep last.
71 };
72 
73 }  // namespace perfetto
74 
75 #endif  // TEST_TEST_HELPER_H_
76