Add unit test and showcase support for search widget.

BUG=622743

Review-Url: https://codereview.chromium.org/2810403003
Cr-Commit-Position: refs/heads/master@{#465645}

ios/chrome/search_widget_extension/BUILD.gn

@@ -20,6 +20,21 @@ compile_plist("entitlements") {
 }
 
 ios_appex_bundle("search_widget_extension") {
+  deps = [
+    ":search_widget",
+  ]
+
+  extra_substitutions = [
+    "CHROME_CHANNEL_SCHEME=$url_channel_scheme",
+    "CHROMIUM_SHORT_NAME=$chromium_short_name",
+    "WIDGET_EXTENSION_BUNDLE_ID=$chromium_bundle_id.SearchTodayExtension",
+  ]
+
+  entitlements_target = ":entitlements"
+  info_plist_target = ":tweak_info_plist"
+}
+
+source_set("search_widget") {
   sources = [
     "search_widget_view.h",
     "search_widget_view.mm",
@@ -30,17 +45,7 @@ ios_appex_bundle("search_widget_extension") {
   deps = [
     "//base",
     "//components/open_from_clipboard:open_from_clipboard_impl",
-    "//components/prefs",
-    "//components/variations",
-    "//components/version_info",
-    "//ios/chrome/common",
     "//ios/chrome/common/app_group",
-    "//ios/chrome/common/app_group:client",
-    "//ios/chrome/common/physical_web",
-    "//ios/chrome/today_extension/strings",
-    "//ios/third_party/material_components_ios",
-    "//net",
-    "//ui/base",
   ]
 
   libs = [
@@ -49,14 +54,17 @@ ios_appex_bundle("search_widget_extension") {
     "UIKit.framework",
   ]
 
-  extra_substitutions = [
-    "CHROME_CHANNEL_SCHEME=$url_channel_scheme",
-    "CHROMIUM_SHORT_NAME=$chromium_short_name",
-    "WIDGET_EXTENSION_BUNDLE_ID=$chromium_bundle_id.SearchTodayExtension",
-  ]
-
   configs += [ "//build/config/compiler:enable_arc" ]
+}
 
-  entitlements_target = ":entitlements"
-  info_plist_target = ":tweak_info_plist"
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "search_widget_view_controller_unittest.mm",
+  ]
+  deps = [
+    ":search_widget",
+    "//testing/gtest",
+  ]
+  configs += [ "//build/config/compiler:enable_arc" ]
 }

ios/chrome/search_widget_extension/search_widget_view_controller_unittest.mm

+// Copyright 2017 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.
+
+#import "ios/chrome/search_widget_extension/search_widget_view_controller.h"
+
+#import "ios/chrome/search_widget_extension/search_widget_view_controller.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+using SearchWidgetViewControllerTest = PlatformTest;
+
+TEST_F(SearchWidgetViewControllerTest, Alloc) {
+  SearchWidgetViewController* controller =
+      [[SearchWidgetViewController alloc] init];
+  ASSERT_NE(controller, nil);
+}

ios/chrome/test/BUILD.gn

@@ -189,6 +189,7 @@ test("ios_chrome_unittests") {
     "//ios/chrome/browser/web_resource:unit_tests",
     "//ios/chrome/browser/web_state_list:unit_tests",
     "//ios/chrome/common:unit_tests",
+    "//ios/chrome/search_widget_extension:unit_tests",
     "//ios/chrome/test/base:unit_tests",
     "//ios/shared/chrome/browser/ui/browser_list:unit_tests",
     "//ios/shared/chrome/browser/ui/commands:unit_tests",

ios/showcase/BUILD.gn

@@ -25,6 +25,7 @@ ios_app_bundle("showcase") {
 
 group("features") {
   deps = [
+    "//ios/chrome/search_widget_extension:search_widget",
     "//ios/clean/chrome/browser/ui/tools:tools_ui",
     "//ios/showcase/content_suggestions",
     "//ios/showcase/ntp",

ios/showcase/core/showcase_model.mm

@@ -81,6 +81,11 @@
       showcase::kClassForInstantiationKey : @"UIKitTableViewCellViewController",
       showcase::kUseCaseKey : @"UIKit Table Cells",
     },
+    @{
+      showcase::kClassForDisplayKey : @"SearchWidgetViewController",
+      showcase::kClassForInstantiationKey : @"SearchWidgetViewController",
+      showcase::kUseCaseKey : @"Search Widget",
+    },
   ];
 }