1 /** 2 * Copyright 2024 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 #pragma once 18 19 #include <queue> 20 #include <string> 21 22 #include <android-base/result.h> 23 #include <gtest/gtest.h> 24 #include <input/InputTransport.h> 25 #include <utils/Errors.h> 26 27 namespace android { 28 29 class TestInputChannel final : public InputChannel { 30 public: 31 explicit TestInputChannel(const std::string& name); 32 33 /** 34 * Enqueues a message in mReceivedMessages. 35 */ 36 void enqueueMessage(const InputMessage& message); 37 38 /** 39 * Pushes message to mSentMessages. In the default implementation, InputChannel sends messages 40 * through a file descriptor. TestInputChannel, on the contrary, stores sent messages in 41 * mSentMessages for assertion reasons. 42 */ 43 status_t sendMessage(const InputMessage* message) override; 44 45 /** 46 * Returns an InputMessage from mReceivedMessages. This is done instead of retrieving data 47 * directly from fd. 48 */ 49 base::Result<InputMessage> receiveMessage() override; 50 51 /** 52 * Returns if mReceivedMessages is not empty. 53 */ 54 bool probablyHasInput() const override; 55 56 void assertFinishMessage(uint32_t seq, bool handled); 57 58 void assertNoSentMessages() const; 59 60 private: 61 // InputMessages received by the endpoint. 62 std::queue<InputMessage> mReceivedMessages; 63 // InputMessages sent by the endpoint. 64 std::queue<InputMessage> mSentMessages; 65 }; 66 } // namespace android 67