Refactor extension handling code from AppShimHost into ExtensionAppShimHandler.

apps/app_shim/extension_app_shim_handler_mac_unittest.cc

+// Copyright 2013 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 "apps/app_shim/extension_app_shim_handler_mac.h"
+
+#include "apps/app_shim/app_shim_host_mac.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "chrome/test/base/testing_profile.h"
+#include "content/public/browser/notification_service.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace apps {
+
+class TestingExtensionAppShimHandler : public ExtensionAppShimHandler {
+ public:
+  explicit TestingExtensionAppShimHandler() : fails_launch_(false) {}
+  virtual ~TestingExtensionAppShimHandler() {}
+
+  void set_fails_launch(bool fails_launch) {
+    fails_launch_ = fails_launch;
+  }
+
+  AppShimHandler::Host* FindHost(Profile* profile,
+                                 const std::string& app_id) {
+    HostMap::const_iterator it = hosts().find(make_pair(profile, app_id));
+    return it == hosts().end() ? NULL : it->second;
+  }
+
+  content::NotificationRegistrar& GetRegistrar() { return registrar(); }
+
+ protected:
+  virtual bool LaunchApp(Profile* profile, const std::string& app_id) OVERRIDE {
+    return !fails_launch_;
+  }
+
+ private:
+  bool fails_launch_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestingExtensionAppShimHandler);
+};
+
+const char kTestAppIdA[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
+const char kTestAppIdB[] = "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb";
+
+class FakeHost : public apps::AppShimHandler::Host {
+ public:
+  FakeHost(Profile* profile,
+           std::string app_id,
+           TestingExtensionAppShimHandler* handler)
+      : profile_(profile),
+        app_id_(app_id),
+        handler_(handler),
+        close_count_(0) {}
+
+  virtual void OnAppClosed() OVERRIDE {
+    handler_->OnShimClose(this);
+    ++close_count_;
+  }
+  virtual Profile* GetProfile() const OVERRIDE { return profile_; }
+  virtual std::string GetAppId() const OVERRIDE { return app_id_; }
+
+  int close_count() { return close_count_; }
+
+ private:
+  Profile* profile_;
+  std::string app_id_;
+  TestingExtensionAppShimHandler* handler_;
+  int close_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeHost);
+};
+
+class ExtensionAppShimHandlerTest : public testing::Test {
+ protected:
+  ExtensionAppShimHandlerTest()
+      : handler_(new TestingExtensionAppShimHandler),
+        host_aa_(&profile_a_, kTestAppIdA, handler_.get()),
+        host_ab_(&profile_a_, kTestAppIdB, handler_.get()),
+        host_bb_(&profile_b_, kTestAppIdB, handler_.get()),
+        host_aa_duplicate_(&profile_a_, kTestAppIdA, handler_.get()) {}
+
+  scoped_ptr<TestingExtensionAppShimHandler> handler_;
+  TestingProfile profile_a_;
+  TestingProfile profile_b_;
+  FakeHost host_aa_;
+  FakeHost host_ab_;
+  FakeHost host_bb_;
+  FakeHost host_aa_duplicate_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ExtensionAppShimHandlerTest);
+};
+
+TEST_F(ExtensionAppShimHandlerTest, LaunchAndCloseShim) {
+  // If launch fails, the host is not added to the map.
+  handler_->set_fails_launch(true);
+  EXPECT_EQ(false, handler_->OnShimLaunch(&host_aa_));
+  EXPECT_FALSE(handler_->FindHost(&profile_a_, kTestAppIdA));
+
+  // Normal startup.
+  handler_->set_fails_launch(false);
+  EXPECT_EQ(true, handler_->OnShimLaunch(&host_aa_));
+  EXPECT_EQ(&host_aa_, handler_->FindHost(&profile_a_, kTestAppIdA));
+  EXPECT_TRUE(handler_->GetRegistrar().IsRegistered(
+      handler_.get(),
+      chrome::NOTIFICATION_EXTENSION_HOST_DESTROYED,
+      content::Source<Profile>(&profile_a_)));
+  EXPECT_EQ(true, handler_->OnShimLaunch(&host_ab_));
+  EXPECT_EQ(&host_ab_, handler_->FindHost(&profile_a_, kTestAppIdB));
+  EXPECT_EQ(true, handler_->OnShimLaunch(&host_bb_));
+  EXPECT_EQ(&host_bb_, handler_->FindHost(&profile_b_, kTestAppIdB));
+  EXPECT_TRUE(handler_->GetRegistrar().IsRegistered(
+      handler_.get(),
+      chrome::NOTIFICATION_EXTENSION_HOST_DESTROYED,
+      content::Source<Profile>(&profile_b_)));
+
+  // Starting and closing a second host does nothing.
+  EXPECT_EQ(false, handler_->OnShimLaunch(&host_aa_duplicate_));
+  EXPECT_EQ(&host_aa_, handler_->FindHost(&profile_a_, kTestAppIdA));
+  handler_->OnShimClose(&host_aa_duplicate_);
+  EXPECT_EQ(&host_aa_, handler_->FindHost(&profile_a_, kTestAppIdA));
+
+  // Normal close.
+  handler_->OnShimClose(&host_aa_);
+  EXPECT_FALSE(handler_->FindHost(&profile_a_, kTestAppIdA));
+
+  // Closing the second host afterward does nothing.
+  handler_->OnShimClose(&host_aa_duplicate_);
+  EXPECT_FALSE(handler_->FindHost(&profile_a_, kTestAppIdA));
+
+  // Destruction sends OnAppClose to remaining hosts.
+  handler_.reset();
+  EXPECT_EQ(1, host_ab_.close_count());
+  EXPECT_EQ(1, host_bb_.close_count());
+}
+
+}  // namespace apps