Committing issue 39299:

Test for extension user script load and inject.

This add a test that a user script actually gets injected into
pages and runs. Before we only had unit tests for the various
classes and weren't testing the system end-to-end.

Review URL: http://codereview.chromium.org/51003
Patch from Steve Krulewitz <skrulx@gmail.com>.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@12247 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 64 insertions, 0 deletions

diff --git a/chrome/browser/extensions/test_extension_loader.cc b/chrome/browser/extensions/test_extension_loader.cc
new file mode 100755
index 0000000..4012833
--- /dev/null
+++ b/chrome/browser/extensions/test_extension_loader.cc
@@ -0,0 +1,64 @@
+// Copyright (c) 2006-2009 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/extensions/test_extension_loader.h"
+
+#include "base/file_path.h"
+#include "base/message_loop.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/extensions/extensions_service.h"
+#include "chrome/common/notification_service.h"
+#include "chrome/test/ui_test_utils.h"
+
+namespace {
+
+// How long to wait for the extension to load before giving up.
+const int kLoadTimeoutMs = 5000;
+
+}  // namespace
+
+TestExtensionLoader::TestExtensionLoader(Profile* profile)
+    : profile_(profile),
+      extension_(NULL),
+      loading_extension_id_(NULL) {
+  registrar_.Add(this, NotificationType::EXTENSIONS_LOADED,
+      NotificationService::AllSources());
+
+  profile_->GetExtensionsService()->Init();
+  DCHECK(profile_->GetExtensionsService()->extensions()->empty()); 
+}
+
+Extension* TestExtensionLoader::Load(const char* extension_id,
+                                     const FilePath& path) {
+  loading_extension_id_ = extension_id;
+
+  // Load the extension.
+  profile_->GetExtensionsService()->LoadExtension(path);
+
+  // Wait for the load to complete.  Stick a QuitTask into the message loop
+  // with the timeout so it will exit if the extension never loads.
+  extension_ = NULL;
+  MessageLoop::current()->PostDelayedTask(FROM_HERE,
+      new MessageLoop::QuitTask, kLoadTimeoutMs);
+  ui_test_utils::RunMessageLoop();
+
+  return extension_;
+}
+
+void TestExtensionLoader::Observe(NotificationType type,
+                                  const NotificationSource& source,
+                                  const NotificationDetails& details) {
+  if (type == NotificationType::EXTENSIONS_LOADED) {
+    ExtensionList* extensions = Details<ExtensionList>(details).ptr();
+    for (size_t i = 0; i < (*extensions).size(); i++) {
+      if ((*extensions)[i]->id() == loading_extension_id_) {
+        extension_ = (*extensions)[i];
+        MessageLoopForUI::current()->Quit();
+        break;
+      }
+    }
+  } else {
+    NOTREACHED();
+  }
+}