It2Me Confirmation Dialog

remoting/host/it2me/it2me_confirmation_dialog_proxy_unittest.cc

+// Copyright 2014 The Chromium 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 "remoting/host/it2me/it2me_confirmation_dialog_proxy.h"
+
+#include "base/bind.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gmock_mutant.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using ::testing::InvokeWithoutArgs;
+using ::testing::CreateFunctor;
+
+namespace remoting {
+
+class StubIt2MeConfirmationDialog : public It2MeConfirmationDialog {
+ public:
+  explicit StubIt2MeConfirmationDialog(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner)
+      : task_runner_(task_runner) {
+  }
+  ~StubIt2MeConfirmationDialog() override {
+    EXPECT_TRUE(task_runner_->BelongsToCurrentThread());
+  }
+
+  void ReportResult(Result result) {
+    ASSERT_TRUE(task_runner_->BelongsToCurrentThread());
+    callback_.Run(result);
+  }
+
+  MOCK_METHOD0(OnShow, void());
+
+  // It2MeConfirmationDialog implementation.
+  void Show(const ResultCallback& callback) override {
+    EXPECT_TRUE(callback_.is_null());
+    EXPECT_TRUE(task_runner_->BelongsToCurrentThread());
+    callback_ = callback;
+    OnShow();
+  }
+
+ private:
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
+  ResultCallback callback_;
+};
+
+// Encapsulates a target for It2MeConfirmationDialog::ResultCallback.
+class ResultCallbackTarget {
+ public:
+  explicit ResultCallbackTarget(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner)
+      : task_runner_(task_runner) {
+  }
+
+  MOCK_METHOD1(OnDialogResult, void(It2MeConfirmationDialog::Result));
+
+  It2MeConfirmationDialog::ResultCallback MakeCallback() {
+    return base::Bind(&ResultCallbackTarget::HandleDialogResult,
+                      base::Unretained(this));
+  }
+
+ private:
+  void HandleDialogResult(It2MeConfirmationDialog::Result result) {
+    EXPECT_TRUE(task_runner_->BelongsToCurrentThread());
+    OnDialogResult(result);
+  }
+
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
+};
+
+class It2MeConfirmationDialogProxyTest : public testing::Test {
+ public:
+  It2MeConfirmationDialogProxyTest();
+  ~It2MeConfirmationDialogProxyTest() override;
+
+  scoped_refptr<base::SingleThreadTaskRunner> main_task_runner() {
+    return message_loop_.task_runner();
+  }
+
+  scoped_refptr<base::SingleThreadTaskRunner> dialog_task_runner() {
+    return dialog_thread_.task_runner();
+  }
+
+  void Run() {
+    run_loop_.Run();
+  }
+
+  void Quit() {
+    run_loop_.Quit();
+  }
+
+  It2MeConfirmationDialogProxy* dialog_proxy() {
+    return dialog_proxy_.get();
+  }
+
+  StubIt2MeConfirmationDialog* dialog() {
+    return dialog_;
+  }
+
+ private:
+  base::MessageLoop message_loop_;
+  base::RunLoop run_loop_;
+  base::Thread dialog_thread_;
+
+  // |dialog_| is owned by |dialog_proxy_| but we keep an alias for test
+  // purposes.
+  StubIt2MeConfirmationDialog* dialog_;
+  scoped_ptr<It2MeConfirmationDialogProxy> dialog_proxy_;
+};
+
+It2MeConfirmationDialogProxyTest::It2MeConfirmationDialogProxyTest()
+    : dialog_thread_("test dialog thread") {
+  dialog_thread_.Start();
+
+  dialog_ = new StubIt2MeConfirmationDialog(dialog_task_runner());
+  dialog_proxy_.reset(new It2MeConfirmationDialogProxy(
+      dialog_task_runner(),
+      main_task_runner(),
+      scoped_ptr<It2MeConfirmationDialog>(dialog_)));
+}
+
+It2MeConfirmationDialogProxyTest::~It2MeConfirmationDialogProxyTest() {}
+
+TEST_F(It2MeConfirmationDialogProxyTest, Show) {
+  ResultCallbackTarget callback_target(main_task_runner());
+
+  EXPECT_CALL(*dialog(), OnShow())
+      .WillOnce(
+          InvokeWithoutArgs(
+              CreateFunctor(
+                  dialog(), &StubIt2MeConfirmationDialog::ReportResult,
+                  It2MeConfirmationDialog::Result::CANCEL)));
+
+  EXPECT_CALL(callback_target,
+              OnDialogResult(It2MeConfirmationDialog::Result::CANCEL))
+      .WillOnce(
+          InvokeWithoutArgs(this, &It2MeConfirmationDialogProxyTest::Quit));
+
+  dialog_proxy()->Show(callback_target.MakeCallback());
+
+  Run();
+}
+
+}  // namespace remoting