text: // Copyright 2010-2020, Google Inc.
  // All rights reserved.
  //
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  //
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  // notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  //     * Neither the name of Google Inc. nor the names of its
  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  #include "renderer/renderer_server.h"
  
  #include <memory>
  #include <string>
  
  #include "base/logging.h"
  #include "base/port.h"
  #include "base/system_util.h"
  #include "base/util.h"
  #include "ipc/ipc_test_util.h"
  #include "protocol/renderer_command.pb.h"
  #include "renderer/renderer_client.h"
  #include "renderer/renderer_interface.h"
  #include "testing/base/public/googletest.h"
  #include "testing/base/public/gunit.h"
  
  namespace mozc {
  namespace renderer {
  namespace {
  
  class TestRenderer : public RendererInterface {
   public:
    TestRenderer() : counter_(0), finished_(false) {}
  
    bool Activate() { return true; }
  
    bool IsAvailable() const { return true; }
  
    bool ExecCommand(const commands::RendererCommand &command) {
      if (finished_) {
        return false;
      }
      counter_++;
      return true;
    }
  
    void Reset() { counter_ = 0; }
  
    int counter() const { return counter_; }
  
    void Shutdown() { finished_ = true; }
  
   private:
    int counter_;
    bool finished_;
  };
  
  class TestRendererServer : public RendererServer {
   public:
    TestRendererServer() {}
  
    virtual ~TestRendererServer() {}
  
    int StartMessageLoop() { return 0; }
  
    // Not async for testing
    bool AsyncExecCommand(std::string *proto_message) {
      commands::RendererCommand command;
      command.ParseFromString(*proto_message);
      delete proto_message;
      return ExecCommandInternal(command);
    }
  };
  
  // A renderer launcher which does nothing.
  class DummyRendererLauncher : public RendererLauncherInterface {
   public:
    void StartRenderer(const std::string &name, const std::string &renderer_path,
                       bool disable_renderer_path_check,
                       IPCClientFactoryInterface *ipc_client_factory_interface) {
      LOG(INFO) << name << " " << renderer_path;
    }
  
    bool ForceTerminateRenderer(const std::string &name) { return true; }
  
    void OnFatal(RendererErrorType type) { LOG(ERROR) << static_cast<int>(type); }
  
    virtual bool IsAvailable() const { return true; }
  
    virtual bool CanConnect() const { return true; }
  
    virtual void SetPendingCommand(const commands::RendererCommand &command) {}
  
    virtual void set_suppress_error_dialog(bool suppress) {}
  };
  }  // namespace
  
  class RendererServerTest : public ::testing::Test {
   protected:
    virtual void SetUp() {
      SystemUtil::SetUserProfileDirectory(FLAGS_test_tmpdir);
    }
  };
  
  TEST_F(RendererServerTest, IPCTest) {
    SystemUtil::SetUserProfileDirectory(FLAGS_test_tmpdir);
    mozc::IPCClientFactoryOnMemory on_memory_client_factory;
  
    std::unique_ptr<TestRendererServer> server(new TestRendererServer);
    TestRenderer renderer;
    server->SetRendererInterface(&renderer);
  #ifdef __APPLE__
    server->SetMachPortManager(on_memory_client_factory.OnMemoryPortManager());
  #endif
    renderer.Reset();
  
    // listning event
    server->StartServer();
    Util::Sleep(1000);
  
    DummyRendererLauncher launcher;
    RendererClient client;
    client.SetIPCClientFactory(&on_memory_client_factory);
    client.DisableRendererServerCheck();
    client.SetRendererLauncherInterface(&launcher);
    commands::RendererCommand command;
    command.set_type(commands::RendererCommand::NOOP);
  
    // renderer is called via IPC
    client.ExecCommand(command);
    EXPECT_EQ(1, renderer.counter());
  
    client.ExecCommand(command);
    client.ExecCommand(command);
    client.ExecCommand(command);
    EXPECT_EQ(4, renderer.counter());
  
    // Gracefully shutdown the server.
    renderer.Shutdown();
    client.ExecCommand(command);
    server->Wait();
  }
  
  }  // namespace renderer
  }  // namespace mozc
  