1 2 /** 3 * Copyright (C) 2018-present MongoDB, Inc. 4 * 5 * This program is free software: you can redistribute it and/or modify 6 * it under the terms of the Server Side Public License, version 1, 7 * as published by MongoDB, Inc. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * Server Side Public License for more details. 13 * 14 * You should have received a copy of the Server Side Public License 15 * along with this program. If not, see 16 * <http://www.mongodb.com/licensing/server-side-public-license>. 17 * 18 * As a special exception, the copyright holders give permission to link the 19 * code of portions of this program with the OpenSSL library under certain 20 * conditions as described in each individual source file and distribute 21 * linked combinations including the program with the OpenSSL library. You 22 * must comply with the Server Side Public License in all respects for 23 * all of the code used other than as permitted herein. If you modify file(s) 24 * with this exception, you may extend this exception to your version of the 25 * file(s), but you are not obligated to do so. If you do not wish to do so, 26 * delete this exception statement from your version. If you delete this 27 * exception statement from all source files in the program, then also delete 28 * it in the license file. 29 */ 30 31 #pragma once 32 33 #include "mongo/unittest/task_executor_proxy.h" 34 35 namespace mongo { 36 namespace repl { 37 38 /** 39 * Mock executor::TaskExecutorProxy. 40 * Supports injecting errors into scheduleWork(), scheduleWorkAt() and scheduleRemoteCommand(). 41 */ 42 class TaskExecutorMock : public unittest::TaskExecutorProxy { 43 public: 44 using ShouldFailScheduleWorkRequestFn = stdx::function<bool()>; 45 using ShouldFailScheduleRemoteCommandRequestFn = 46 stdx::function<bool(const executor::RemoteCommandRequest&)>; 47 48 explicit TaskExecutorMock(executor::TaskExecutor* executor); 49 50 StatusWith<CallbackHandle> scheduleWork(const CallbackFn& work) override; 51 StatusWith<CallbackHandle> scheduleWorkAt(Date_t when, const CallbackFn& work) override; 52 StatusWith<CallbackHandle> scheduleRemoteCommand(const executor::RemoteCommandRequest& request, 53 const RemoteCommandCallbackFn& cb) override; 54 55 // Override to make scheduleWork() fail during testing. 56 ShouldFailScheduleWorkRequestFn shouldFailScheduleWorkRequest = []() { return false; }; 57 58 // Override to make scheduleWorkAt() fail during testing. 59 ShouldFailScheduleWorkRequestFn shouldFailScheduleWorkAtRequest = []() { return false; }; 60 61 // If the predicate returns true, scheduleWork() will schedule the task 1 second later instead 62 // of running immediately. This allows us to test cancellation handling in callbacks scheduled 63 // using scheduleWork(). 64 ShouldFailScheduleWorkRequestFn shouldDeferScheduleWorkRequestByOneSecond = []() { 65 return false; 66 }; 67 68 // Override to make scheduleRemoteCommand fail during testing. 69 ShouldFailScheduleRemoteCommandRequestFn shouldFailScheduleRemoteCommandRequest = 70 [](const executor::RemoteCommandRequest&) { return false; }; 71 }; 72 73 } // namespace repl 74 } // namespace mongo 75