Add BlimpContents[,Observer] and BlimpNavigationController

blimp/client/core/blimp_contents_impl_unittest.cc

+// Copyright 2016 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 "blimp/client/core/blimp_contents_impl.h"
+
+#include "base/message_loop/message_loop.h"
+#include "blimp/client/core/blimp_contents_impl.h"
+#include "blimp/client/core/public/blimp_contents_observer.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace blimp {
+namespace client {
+namespace {
+
+const GURL kExampleURL = GURL("https://www.example.com/");
+const GURL kOtherExampleURL = GURL("https://www.otherexample.com/");
+
+class TestBlimpContentsObserver : public BlimpContentsObserver {
+ public:
+  TestBlimpContentsObserver() = default;
+  ~TestBlimpContentsObserver() override = default;
+
+  void OnURLUpdated(const GURL& url) override { last_url_ = url; }
+
+  GURL GetLastURL() { return last_url_; }
+
+ private:
+  GURL last_url_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestBlimpContentsObserver);
+};
+
+TEST(BlimpContentsImplTest, Basic) {
+  base::MessageLoop loop;
+  BlimpContentsImpl blimp_contents;
+
+  BlimpNavigationController& navigation_controller =
+      blimp_contents.GetNavigationController();
+
+  TestBlimpContentsObserver observer1;
+  blimp_contents.AddObserver(&observer1);
+  TestBlimpContentsObserver observer2;
+  blimp_contents.AddObserver(&observer2);
+
+  navigation_controller.LoadURL(kExampleURL);
+  loop.RunUntilIdle();
+
+  EXPECT_EQ(kExampleURL, navigation_controller.GetURL());
+  EXPECT_EQ(kExampleURL, observer1.GetLastURL());
+  EXPECT_EQ(kExampleURL, observer2.GetLastURL());
+
+  // Observer should no longer receive callbacks.
+  blimp_contents.RemoveObserver(&observer1);
+
+  navigation_controller.LoadURL(kOtherExampleURL);
+  loop.RunUntilIdle();
+
+  EXPECT_EQ(kOtherExampleURL, navigation_controller.GetURL());
+  EXPECT_EQ(kExampleURL, observer1.GetLastURL());
+  EXPECT_EQ(kOtherExampleURL, observer2.GetLastURL());
+}
+
+}  // namespace
+}  // namespace client
+}  // namespace blimp