[Tablet Form Factor] Unit test for block initial preferred ARC app launch.

Code stub for reference.

Change-Id: Ida9126ed845fcb4548ad7bd4b411054d14af3f97
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1904565
Commit-Queue: Melissa Zhang <melzhang@chromium.org>
Reviewed-by: Maggie Cai <mxcai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#718972}

chrome/browser/apps/intent_helper/intent_picker_auto_display_service_unittest.cc

+// Copyright 2019 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 "chrome/browser/apps/intent_helper/intent_picker_auto_display_service.h"
+
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/apps/intent_helper/intent_picker_auto_display_pref.h"
+#include "chrome/test/base/testing_profile.h"
+#include "content/public/test/browser_task_environment.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+class IntentPickerAutoDisplayServiceTest : public testing::Test {
+ public:
+  IntentPickerAutoDisplayServiceTest()
+      : task_environment_(content::BrowserTaskEnvironment::IO_MAINLOOP) {}
+
+ protected:
+  content::BrowserTaskEnvironment task_environment_;
+};
+
+TEST_F(IntentPickerAutoDisplayServiceTest, GetPlatform) {
+  GURL url1("https://www.google.com/abcde");
+  GURL url2("https://www.google.com/hi");
+  GURL url3("https://www.boogle.com/a");
+
+  TestingProfile profile;
+  IntentPickerAutoDisplayService* service =
+      IntentPickerAutoDisplayService::Get(&profile);
+
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kNone,
+            service->GetLastUsedPlatformForTablets(url1));
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kNone,
+            service->GetLastUsedPlatformForTablets(url2));
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kNone,
+            service->GetLastUsedPlatformForTablets(url3));
+
+  // Update platform to a value and check value has updated.
+  service->UpdatePlatformForTablets(
+      url1, IntentPickerAutoDisplayPref::Platform::kArc);
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kArc,
+            service->GetLastUsedPlatformForTablets(url1));
+  // Url with the same host should also have updated value.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kArc,
+            service->GetLastUsedPlatformForTablets(url2));
+
+  // Url with a different host should have original value.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kNone,
+            service->GetLastUsedPlatformForTablets(url3));
+
+  // Update platform and check value has updated.
+  service->UpdatePlatformForTablets(
+      url2, IntentPickerAutoDisplayPref::Platform::kChrome);
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kChrome,
+            service->GetLastUsedPlatformForTablets(url1));
+  // Url with the same host should also have updated value.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kChrome,
+            service->GetLastUsedPlatformForTablets(url2));
+
+  // Url with a different host should have original value.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kNone,
+            service->GetLastUsedPlatformForTablets(url3));
+
+  // Update platform and check value has updated.
+  service->UpdatePlatformForTablets(
+      url3, IntentPickerAutoDisplayPref::Platform::kArc);
+  // Url with different hosts should have original value.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kChrome,
+            service->GetLastUsedPlatformForTablets(url1));
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kChrome,
+            service->GetLastUsedPlatformForTablets(url2));
+
+  // Url value should be updated.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kArc,
+            service->GetLastUsedPlatformForTablets(url3));
+
+  service->UpdatePlatformForTablets(
+      url3, IntentPickerAutoDisplayPref::Platform::kNone);
+  // Url value should be updated.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kNone,
+            service->GetLastUsedPlatformForTablets(url3));
+  // Url with different hosts should have original value.
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kChrome,
+            service->GetLastUsedPlatformForTablets(url1));
+  EXPECT_EQ(IntentPickerAutoDisplayPref::Platform::kChrome,
+            service->GetLastUsedPlatformForTablets(url2));
+}

chrome/test/BUILD.gn

@@ -4019,6 +4019,7 @@ test("unit_tests") {
       "../browser/apps/app_service/app_service_test.cc",
       "../browser/apps/app_service/app_service_test.h",
       "../browser/apps/intent_helper/apps_navigation_throttle_unittest.cc",
+      "../browser/apps/intent_helper/intent_picker_auto_display_service_unittest.cc",
       "../browser/apps/intent_helper/page_transition_util_unittest.cc",
       "../browser/devtools/devtools_file_system_indexer_unittest.cc",
       "../browser/devtools/devtools_file_watcher_unittest.cc",