| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_MODULAR_LIB_TESTING_COMPONENT_MAIN_H_ |
| #define SRC_MODULAR_LIB_TESTING_COMPONENT_MAIN_H_ |
| |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/async-loop/default.h> |
| |
| #include "src/modular/lib/app_driver/cpp/app_driver.h" |
| |
| namespace modular_testing { |
| |
| // A main function for an application that only runs the implementation of a |
| // single component used for integration testing. The component implementation |
| // Impl usually derives from ComponentBase. |
| // |
| // Args are meant to be either nothing or the instance of a Settings class |
| // initialized from the command line arguments. They are just passed as |
| // additional constructor arguments to Impl. |
| // |
| // Example use with settings (TestApp and Settings are locally defined classes): |
| // |
| // int main(int argc, const char** argv) { |
| // auto command_line = fxl::CommandLineFromArgcArgv(argc, argv); |
| // Settings settings(command_line); |
| // modular_testing::ComponentMain<TestApp, Settings>(std::move(settings)); |
| // return 0; |
| // } |
| // |
| // Example use without settings (TestApp is a locally defined class): |
| // |
| // int main(int, const char**) { |
| // modular_testing::ComponentMain<TestApp>(); |
| // return 0; |
| // } |
| // |
| // The classes ComponentBase and SessionShellBase defined in this directory are |
| // meant to be used as base classes for Impl. |
| template <typename Impl, typename... Args> |
| void ComponentMain(Args... args) { |
| async::Loop loop(&kAsyncLoopConfigAttachToCurrentThread); |
| |
| auto context = sys::ComponentContext::CreateAndServeOutgoingDirectory(); |
| modular::AppDriver<Impl> driver(context->outgoing(), |
| std::make_unique<Impl>(context.get(), std::move(args)...), |
| [&loop] { loop.Quit(); }); |
| |
| loop.Run(); |
| } |
| |
| } // namespace modular_testing |
| |
| #endif // SRC_MODULAR_LIB_TESTING_COMPONENT_MAIN_H_ |