arc-app-launcher: Minimal support for ARC app launcher.

chrome/browser/ui/app_list/arc_app_unittest.cc

Index: chrome/browser/ui/app_list/arc_app_unittest.cc
diff --git a/chrome/browser/ui/app_list/arc_app_unittest.cc b/chrome/browser/ui/app_list/arc_app_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6eb22b7b68337fd8bd6085f1faccaf239d4abf6c
--- /dev/null
+++ b/chrome/browser/ui/app_list/arc_app_unittest.cc
@@ -0,0 +1,383 @@
+// Copyright 2015 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 <algorithm>
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/run_loop.h"
+#include "base/task_runner_util.h"
+#include "chrome/browser/ui/app_list/app_list_test_util.h"
+#include "chrome/browser/ui/app_list/arc_app_item.h"
+#include "chrome/browser/ui/app_list/arc_app_list_prefs.h"
+#include "chrome/browser/ui/app_list/arc_app_model_builder.h"
+#include "chrome/browser/ui/app_list/test/test_app_list_controller_delegate.h"
+#include "chrome/test/base/testing_profile.h"
+#include "components/arc/arc_bridge_service.h"
+#include "components/arc/test/fake_arc_bridge_service.h"
+#include "content/public/browser/browser_thread.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/app_list/app_list_model.h"
+#include "ui/gfx/image/image_skia.h"
+
+namespace {
+
+const struct FakeArcBridgeService::AppInfo kFakeApps[] = {
+  {"Arc app 1", "fake.app.1", "fake.app.1.Activity"},
+  {"Arc app 2", "fake.app.2", "fake.app.2.Activity"},
+  {"Arc app 3", "fake.app.3", "fake.app.3.Activity"},
+};
+
+const size_t kFakeAppCount =  arraysize(kFakeApps);
+
+}  // namespace
+
+class ArcAppModelBuilderTest : public AppListTestBase {
+ public:
+  ArcAppModelBuilderTest() {}
+  ~ArcAppModelBuilderTest() override {
+    // Release profile file in order to keep right sequence.
+    profile_.reset();
+  }
+
+  void SetUp() override {
+    AppListTestBase::SetUp();
+
+    // Make sure we have enough data for test.
+    static_assert(kFakeAppCount >= 2, "Not enough data for test");
+
+    bridge_service_.reset(new FakeArcBridgeService());
+
+    // Check initial conditions.
+    EXPECT_EQ(bridge_service_.get(), arc::ArcBridgeService::Get());
+    EXPECT_EQ(false, arc::ArcBridgeService::Get()->available());
+    EXPECT_EQ(arc::ArcBridgeService::State::STOPPED,
+              arc::ArcBridgeService::Get()->state());
+
+    CreateBuilder();
+
+    // At this point we should have ArcAppListPrefs as observer of service.
+    EXPECT_EQ(
+        true,
+        bridge_service_->HasObserver(ArcAppListPrefs::Get(profile_.get())));
+  }
+
+  void TearDown() override { ResetBuilder(); }
+
+ protected:
+  // Creates a new builder, destroying any existing one.
+  void CreateBuilder() {
+    ResetBuilder();  // Destroy any existing builder in the correct order.
+
+    model_.reset(new app_list::AppListModel);
+    controller_.reset(new test::TestAppListControllerDelegate);
+    builder_.reset(new ArcAppModelBuilder(controller_.get()));
+    builder_->InitializeWithProfile(profile_.get(), model_.get());
+  }
+
+  void ResetBuilder() {
+    builder_.reset();
+    controller_.reset();
+    model_.reset();
+  }
+
+  size_t GetArcItemCount() const {
+    size_t arc_count = 0;
+    const size_t count = model_->top_level_item_list()->item_count();
+    for (size_t i = 0; i < count; ++i) {
+      app_list::AppListItem* item = model_->top_level_item_list()->item_at(i);
+      if (item->GetItemType() == ArcAppItem::kItemType) {
+        ++arc_count;
+      }
+    }
+    return arc_count;
+  }
+
+  ArcAppItem* GetArcItem(size_t index) const {
+    size_t arc_count = 0;
+    const size_t count = model_->top_level_item_list()->item_count();
+    ArcAppItem* arc_item = nullptr;
+    for (size_t i = 0; i < count; ++i) {
+      app_list::AppListItem* item = model_->top_level_item_list()->item_at(i);
+      if (item->GetItemType() == ArcAppItem::kItemType) {
+        if (arc_count++ == index) {
+          arc_item = reinterpret_cast<ArcAppItem*>(item);
+          break;
+        }
+      }
+    }
+    EXPECT_NE(nullptr, arc_item);
+    return arc_item;
+  }
+
+  ArcAppItem* FindArcItem(const std::string& id) const {
+    const size_t count = GetArcItemCount();
+    for (size_t i = 0; i < count; ++i) {
+      ArcAppItem* item = GetArcItem(i);
+      if (item && item->id() == id) {
+        return item;
+      }
+    }
+    return nullptr;
+  }
+
+  // Validate that prefs and model have right content.
+  void ValidateHaveApps(size_t app_count,
+                        const FakeArcBridgeService::AppInfo* apps) {
+    ArcAppListPrefs* prefs = ArcAppListPrefs::Get(profile_.get());
+    const std::vector<std::string> ids = prefs->GetAppIds();
+    ASSERT_EQ(app_count, ids.size());
+    ASSERT_EQ(app_count, GetArcItemCount());
+    // In principle, order of items is not defined.
+    for (size_t i = 0; i < app_count; ++i) {
+      const std::string id = apps[i].id();
+      EXPECT_NE(std::find(ids.begin(), ids.end(), id), ids.end());
+      scoped_ptr<ArcAppListPrefs::AppInfo> app_info = prefs->GetApp(ids[i]);
+      ASSERT_NE(nullptr, app_info.get());
+      EXPECT_EQ(apps[i].name, app_info->name);
+      EXPECT_EQ(apps[i].package, app_info->package);
+      EXPECT_EQ(apps[i].activity, app_info->activity);
+
+      const ArcAppItem* app_item = FindArcItem(ids[i]);
+      ASSERT_NE(nullptr, app_item);
+      EXPECT_EQ(apps[i].name, app_item->GetDisplayName());
+    }
+  }
+
+  // Validate that requested apps have required ready state and other apps have
+  // opposite state.
+  void ValidateAppReadyState(size_t app_count,
+                             const FakeArcBridgeService::AppInfo* apps,
+                             bool ready) {
+    ArcAppListPrefs* prefs = ArcAppListPrefs::Get(profile_.get());
+    ASSERT_NE(nullptr, prefs);
+
+    std::vector<std::string> ids = prefs->GetAppIds();
+    EXPECT_EQ(ids.size(), GetArcItemCount());
+
+    // Process requested apps.
+    for (size_t i = 0; i < app_count; ++i) {
+      const std::string id = apps[i].id();
+      std::vector<std::string>::iterator it_id = std::find(ids.begin(),
+                                                           ids.end(),
+                                                           id);
+      ASSERT_NE(it_id, ids.end());
+      ids.erase(it_id);
+
+      scoped_ptr<ArcAppListPrefs::AppInfo> app_info = prefs->GetApp(id);
+      ASSERT_NE(nullptr, app_info.get());
+      EXPECT_EQ(ready, app_info->ready);
+      const ArcAppItem* app_item = FindArcItem(id);
+      ASSERT_NE(nullptr, app_item);
+      EXPECT_EQ(ready, app_item->ready());
+    }
+
+    // Process the rest of the apps.
+    for (size_t i = 0; i < ids.size(); ++i) {
+      const std::string id = ids[i];
+      scoped_ptr<ArcAppListPrefs::AppInfo> app_info = prefs->GetApp(id);
+      ASSERT_NE(nullptr, app_info.get());
+      EXPECT_NE(ready, app_info->ready);
+      const ArcAppItem* app_item = FindArcItem(id);
+      ASSERT_NE(nullptr, app_item);
+      EXPECT_NE(ready, app_item->ready());
+    }
+  }
+
+  scoped_ptr<app_list::AppListModel> model_;
+  scoped_ptr<test::TestAppListControllerDelegate> controller_;
+  scoped_ptr<ArcAppModelBuilder> builder_;
+  scoped_ptr<FakeArcBridgeService> bridge_service_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ArcAppModelBuilderTest);
+};
+
+TEST_F(ArcAppModelBuilderTest, RefreshAllOnReady) {
+  EXPECT_EQ(0, bridge_service_->refresh_apps_count());
+  bridge_service_->SetReady();
+  EXPECT_EQ(1, bridge_service_->refresh_apps_count());
+}
+
+TEST_F(ArcAppModelBuilderTest, RefreshAllFillsContent) {
+  ValidateHaveApps(0, nullptr);
+  bridge_service_->SetReady();
+  bridge_service_->SendRefreshApps(kFakeAppCount, kFakeApps);
+  ValidateHaveApps(kFakeAppCount, kFakeApps);
+}
+
+TEST_F(ArcAppModelBuilderTest, MultipleRefreshAll) {
+  ValidateHaveApps(0, nullptr);
+  bridge_service_->SetReady();
+  // Send info about all fake apps except last.
+  bridge_service_->SendRefreshApps(kFakeAppCount - 1, kFakeApps);
+  // At this point all apps (except last) should exist and be ready.
+  ValidateHaveApps(kFakeAppCount - 1, kFakeApps);
+  ValidateAppReadyState(kFakeAppCount - 1, kFakeApps, true);
+
+  // Send info about all fake apps except first.
+  bridge_service_->SendRefreshApps(kFakeAppCount - 1, kFakeApps + 1);
+  // At this point all apps should exist but first one should be non-ready.
+  ValidateHaveApps(kFakeAppCount, kFakeApps);
+  ValidateAppReadyState(kFakeAppCount - 1, kFakeApps + 1, true);
+
+  // Send info about all fake apps.
+  bridge_service_->SendRefreshApps(kFakeAppCount, kFakeApps);
+  // At this point all apps should exist and be ready.
+  ValidateHaveApps(kFakeAppCount, kFakeApps);
+  ValidateAppReadyState(kFakeAppCount, kFakeApps, true);
+
+  // Send info no app available.
+  bridge_service_->SendRefreshApps(0, nullptr);
+  // At this point all apps should exist and be non-ready.
+  ValidateHaveApps(kFakeAppCount, kFakeApps);
+  ValidateAppReadyState(kFakeAppCount, kFakeApps, false);
+}
+
+TEST_F(ArcAppModelBuilderTest, StopServiceDisablesApps) {
+  ArcAppListPrefs* prefs = ArcAppListPrefs::Get(profile_.get());
+  ASSERT_NE(nullptr, prefs);
+
+  bridge_service_->SetReady();
+  EXPECT_EQ(static_cast<size_t>(0), GetArcItemCount());
+  EXPECT_EQ(static_cast<size_t>(0), prefs->GetAppIds().size());
+
+  bridge_service_->SendRefreshApps(kFakeAppCount, kFakeApps);
+  std::vector<std::string> ids = prefs->GetAppIds();
+  EXPECT_EQ(kFakeAppCount, ids.size());
+  ValidateAppReadyState(kFakeAppCount, kFakeApps, true);
+
+  // Stopping service does not delete items. It makes them non-ready.
+  bridge_service_->SetStopped();
+  // Ids should be the same.
+  EXPECT_EQ(ids, prefs->GetAppIds());
+  ValidateAppReadyState(kFakeAppCount, kFakeApps, false);
+}
+
+TEST_F(ArcAppModelBuilderTest, LaunchApps) {
+  bridge_service_->SetReady();
+  bridge_service_->SendRefreshApps(kFakeAppCount, kFakeApps);
+
+  // Simulate item activate.
+  ArcAppItem* item_first = FindArcItem(kFakeApps[0].id());
+  ArcAppItem* item_last = FindArcItem(kFakeApps[kFakeAppCount - 1].id());
+  ASSERT_NE(nullptr, item_first);
+  ASSERT_NE(nullptr, item_last);
+  item_first->Activate(0);
+  item_last->Activate(0);
+  item_first->Activate(0);
+
+  const std::vector<std::string> launch_requests =
+      bridge_service_->launch_requests();
+  EXPECT_EQ(static_cast<size_t>(3), launch_requests.size());
+  EXPECT_EQ(kFakeApps[0].id(), launch_requests[0]);
+  EXPECT_EQ(kFakeApps[kFakeAppCount - 1].id(), launch_requests[1]);
+  EXPECT_EQ(kFakeApps[0].id(), launch_requests[2]);
+}
+
+TEST_F(ArcAppModelBuilderTest, RequestIcons) {
+  // Make sure we are on UI thread.
+  ASSERT_EQ(true,
+            content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+
+  bridge_service_->SetReady();
+  bridge_service_->SendRefreshApps(kFakeAppCount, kFakeApps);
+
+  // Validate that no icon exists at the beginning and request icon for
+  // each supported scale factor. This will start asynchronous loading.
+  uint32_t expected_mask = 0;
+  const std::vector<ui::ScaleFactor>& scale_factors =
+      ui::GetSupportedScaleFactors();
+  for (size_t i = 0; i < scale_factors.size(); ++i) {
+    const ui::ScaleFactor scale_factor = scale_factors[i];
+    expected_mask |= 1 <<  scale_factor;
+    for (size_t j = 0; j < kFakeAppCount; ++j) {
+      ArcAppItem* app_item = FindArcItem(kFakeApps[j].id());
+      ASSERT_NE(nullptr, app_item);
+      const float scale = ui::GetScaleForScaleFactor(scale_factor);
+      app_item->icon().GetRepresentation(scale);
+    }
+  }
+
+  // Process pending tasks.
+  content::BrowserThread::GetBlockingPool()->FlushForTesting();
+  base::RunLoop().RunUntilIdle();
+
+  // At this moment we should receive all requests for icon loading.
+  const std::vector<FakeArcBridgeService::IconRequest>& icon_requests =
+      bridge_service_->icon_requests();
+  EXPECT_EQ(scale_factors.size() * kFakeAppCount, icon_requests.size());
+  std::map<std::string, uint32_t> app_masks;
+  for (size_t i = 0; i < icon_requests.size(); ++i) {
+    const FakeArcBridgeService::IconRequest icon_request = icon_requests[i];
+    const std::string id = ArcAppListPrefs::GetAppId(icon_request.package,
+                                                     icon_request.activity);
+    // Make sure no double requests.
+    EXPECT_NE(app_masks[id], app_masks[id] | (1 << icon_request.scale_factor));
+    app_masks[id] |= (1 << icon_request.scale_factor);
+  }
+
+  // Validate that we have a request for each icon for each supported scale
+  // factor.
+  EXPECT_EQ(kFakeAppCount, app_masks.size());
+  for (size_t i = 0; i < kFakeAppCount; ++i) {
+    const std::string id = kFakeApps[i].id();
+    ASSERT_NE(app_masks.find(id), app_masks.end());
+    EXPECT_EQ(app_masks[id], expected_mask);
+  }
+}
+
+TEST_F(ArcAppModelBuilderTest, InstallIcon) {
+  // Make sure we are on UI thread.
+  ASSERT_EQ(true,
+            content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+
+  bridge_service_->SetReady();
+  bridge_service_->SendRefreshApps(1, kFakeApps);
+
+  ArcAppListPrefs* prefs = ArcAppListPrefs::Get(profile_.get());
+  ASSERT_NE(nullptr, prefs);
+
+  const ui::ScaleFactor scale_factor = ui::GetSupportedScaleFactors()[0];
+  const float scale = ui::GetScaleForScaleFactor(scale_factor);
+  const base::FilePath icon_path = prefs->GetIconPath(kFakeApps[0].id(),
+                                                      scale_factor);
+  EXPECT_EQ(false, base::PathExists(icon_path));
+
+  const ArcAppItem* app_item = FindArcItem(kFakeApps[0].id());
+  EXPECT_NE(nullptr, app_item);
+  // This initiates async loading.
+  app_item->icon().GetRepresentation(scale);
+
+  // Process pending tasks.
+  content::BrowserThread::GetBlockingPool()->FlushForTesting();
+  base::RunLoop().RunUntilIdle();
+
+  // Now send generated icon for the app.
+  std::vector<unsigned char> png_data;
+  EXPECT_EQ(true, bridge_service_->GenerateAndSendIcon(kFakeApps[0],
+                                                       scale_factor,
+                                                       &png_data));
+
+  // Process pending tasks.
+  content::BrowserThread::GetBlockingPool()->FlushForTesting();
+  base::RunLoop().RunUntilIdle();
+
+  // Validate that icons are installed, have right content and icon is
+  // refreshed for ARC app item.
+  EXPECT_EQ(true, base::PathExists(icon_path));
+
+  std::string icon_data;
+  // Read the file from disk and compare with reference data.
+  EXPECT_EQ(true, base::ReadFileToString(icon_path, &icon_data));
+  ASSERT_EQ(icon_data.size(), png_data.size());
+  EXPECT_EQ(0, memcmp(&icon_data[0], &png_data[0], png_data.size()));
+
+  // Validating decoded content does not fit well for unit tests. Each image is
+  // decoded in separate process and under such condition this unit test takes
+  // noticeable time to complete.
+}