Rework ExtensionApiUnittest to run in extensions_unittests, removing its Chrome dependencies.

extensions/browser/extension_api_unittest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.

[James Cook, 2014/08/13 16:11:36]

Note there are *two* other files in the chrome codebase named
"extension_api_unittest.cc". I think one of the other two should also be
renamed, maybe the one in c/b/e/api/

[Yoyo Zhou, 2014/08/13 22:53:43]

The one in c/c/e/api is actually, as far as I can tell, a unittest for a class
called ExtensionAPI. I'm going to hold off on renaming it. Maybe once we
eliminate the extension_api_unittest in c/b/e, we can settle this.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "extensions/browser/extension_api_unittest.h"
+
+#include "base/values.h"
+#include "components/user_prefs/user_prefs.h"
+#include "content/public/browser/browser_context.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/content_browser_client.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/browser/site_instance.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/common/content_client.h"
+#include "content/public/common/url_constants.h"
+#include "content/public/test/test_browser_context.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "content/public/test/web_contents_tester.h"
+#include "extensions/browser/api_test_utils.h"
+#include "extensions/browser/extension_function.h"
+#include "extensions/browser/test_extensions_browser_client.h"
+#include "extensions/common/extension.h"
+#include "extensions/common/extension_builder.h"
+#include "extensions/common/manifest.h"
+#include "extensions/common/manifest_handlers/background_info.h"
+#include "extensions/common/value_builder.h"
+
+namespace utils = extensions::api_test_utils;
+
+namespace extensions {
+
+ExtensionApiUnittest::ExtensionApiUnittest()
+    : notification_service_(content::NotificationService::Create()) {
+}
+
+ExtensionApiUnittest::~ExtensionApiUnittest() {
+}
+
+void ExtensionApiUnittest::SetUp() {
+  ExtensionsTest::SetUp();
+  extensions_browser_client()->set_extension_system_factory(
+      &extension_system_factory_);
+
+  thread_bundle_.reset(new content::TestBrowserThreadBundle(
+      content::TestBrowserThreadBundle::DEFAULT));
+  user_prefs::UserPrefs::Set(browser_context(), &testing_pref_service_);
+
+  extension_ = ExtensionBuilder()

[James Cook, 2014/08/13 16:11:36]

I like ExtensionBuilder.

+                   .SetManifest(DictionaryBuilder().Set("name", "Test").Set(
+                       "version", "1.0"))
+                   .SetLocation(Manifest::UNPACKED)
+                   .Build();
+}
+
+scoped_ptr<base::Value> ExtensionApiUnittest::RunFunctionAndReturnValue(
+    UIThreadExtensionFunction* function,
+    const std::string& args) {
+  function->set_extension(extension());
+  return scoped_ptr<base::Value>(utils::RunFunctionAndReturnSingleResult(
+      function, args, browser_context()));
+}
+
+scoped_ptr<base::DictionaryValue>
+ExtensionApiUnittest::RunFunctionAndReturnDictionary(
+    UIThreadExtensionFunction* function,
+    const std::string& args) {
+  base::Value* value = RunFunctionAndReturnValue(function, args).release();
+  base::DictionaryValue* dict = NULL;
+
+  if (value && !value->GetAsDictionary(&dict))
+    delete value;
+
+  // We expect to either have successfuly retrieved a dictionary from the value,
+  // or the value to have been NULL.
+  EXPECT_TRUE(dict || !value);
+  return scoped_ptr<base::DictionaryValue>(dict);
+}
+
+scoped_ptr<base::ListValue> ExtensionApiUnittest::RunFunctionAndReturnList(
+    UIThreadExtensionFunction* function,
+    const std::string& args) {
+  base::Value* value = RunFunctionAndReturnValue(function, args).release();
+  base::ListValue* list = NULL;
+
+  if (value && !value->GetAsList(&list))
+    delete value;
+
+  // We expect to either have successfuly retrieved a list from the value,
+  // or the value to have been NULL.
+  EXPECT_TRUE(list || !value);
+  return scoped_ptr<base::ListValue>(list);
+}
+
+std::string ExtensionApiUnittest::RunFunctionAndReturnError(
+    UIThreadExtensionFunction* function,
+    const std::string& args) {
+  function->set_extension(extension());
+  return utils::RunFunctionAndReturnError(function, args, browser_context());
+}
+
+void ExtensionApiUnittest::RunFunction(UIThreadExtensionFunction* function,
+                                       const std::string& args) {
+  RunFunctionAndReturnValue(function, args);
+}
+
+}  // namespace extensions