| // Copyright (c) 2014 The Chromium OS 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 "login_manager/child_exit_dispatcher.h" |
| |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include <base/message_loop/message_loop.h> |
| #include <base/run_loop.h> |
| #include <brillo/asynchronous_signal_handler.h> |
| #include <brillo/message_loops/base_message_loop.h> |
| #include <gtest/gtest.h> |
| |
| #include "login_manager/child_exit_handler.h" |
| #include "login_manager/system_utils_impl.h" |
| |
| namespace login_manager { |
| |
| // A fake child exit handler implementation for testing. |
| class FakeChildExitHandler : public ChildExitHandler { |
| public: |
| FakeChildExitHandler() = default; |
| ~FakeChildExitHandler() override = default; |
| |
| const siginfo_t& last_status() { return last_status_; } |
| |
| // ChildExitHandler overrides. |
| bool HandleExit(const siginfo_t& s) override { |
| last_status_ = s; |
| brillo::MessageLoop::current()->BreakLoop(); |
| return true; |
| } |
| |
| private: |
| siginfo_t last_status_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FakeChildExitHandler); |
| }; |
| |
| class ChildExitDispatcherTest : public ::testing::Test { |
| public: |
| ChildExitDispatcherTest() = default; |
| ~ChildExitDispatcherTest() override = default; |
| |
| void SetUp() override { |
| brillo_loop_.SetAsCurrent(); |
| signal_handler_.Init(); |
| dispatcher_ = std::make_unique<ChildExitDispatcher>( |
| &signal_handler_, std::vector<ChildExitHandler*>{&fake_handler_}); |
| } |
| |
| protected: |
| base::MessageLoopForIO loop_; |
| brillo::BaseMessageLoop brillo_loop_{&loop_}; |
| SystemUtilsImpl system_utils_; |
| brillo::AsynchronousSignalHandler signal_handler_; |
| FakeChildExitHandler fake_handler_; |
| std::unique_ptr<ChildExitDispatcher> dispatcher_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(ChildExitDispatcherTest); |
| }; |
| |
| TEST_F(ChildExitDispatcherTest, ChildExit) { |
| // Fork off a child process that exits immediately. |
| pid_t child_pid = system_utils_.fork(); |
| if (child_pid == 0) { |
| _Exit(EXIT_SUCCESS); |
| } |
| |
| // Spin the message loop. |
| brillo_loop_.Run(); |
| |
| // Verify child termination has been reported to |fake_handler_|. |
| EXPECT_EQ(child_pid, fake_handler_.last_status().si_pid); |
| EXPECT_EQ(SIGCHLD, fake_handler_.last_status().si_signo); |
| EXPECT_EQ(static_cast<int>(CLD_EXITED), fake_handler_.last_status().si_code); |
| EXPECT_EQ(EXIT_SUCCESS, fake_handler_.last_status().si_status); |
| } |
| |
| } // namespace login_manager |