Add policies to specify an enterprise web store.

chrome/browser/extensions/component_loader_unittest.cc

+// Copyright (c) 2011 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 <string>
+
+#include "chrome/browser/extensions/component_loader.h"
+
+#include "base/file_util.h"
+#include "base/path_service.h"
+#include "chrome/browser/extensions/test_extension_service.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/testing_pref_service.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class MockExtensionService : public TestExtensionService {
+ private:
+  bool ready_;
+  ExtensionList extension_list_;
+
+ public:
+  MockExtensionService() : ready_(false) {
+  }
+
+  virtual void AddExtension(const Extension* extension) OVERRIDE {
+    // ExtensionService must become the owner of the extension object.
+    extension_list_.push_back(extension);
+  }
+
+  virtual void UnloadExtension(
+      const std::string& extension_id,
+      extension_misc::UnloadedExtensionReason reason) OVERRIDE {
+    // Remove the extension with the matching id.
+    for (ExtensionList::iterator it = extension_list_.begin();
+         it != extension_list_.end();
+         ++it) {
+      if ((*it)->id() == extension_id) {
+        extension_list_.erase(it);
+        return;
+      }
+    }
+  }
+
+  virtual bool is_ready() OVERRIDE {
+    return ready_;
+  }
+
+  virtual const ExtensionList* extensions() const OVERRIDE {
+    return &extension_list_;
+  }
+
+  void set_ready(bool ready) {
+    ready_ = ready;
+  }
+
+  void clear_extension_list() {
+    extension_list_.clear();
+  }
+};
+
+}  // namespace
+
+namespace extensions {
+
+class ComponentLoaderTest : public testing::Test {
+ public:
+  ComponentLoaderTest() :
+      // Note: we pass the same pref service here, to stand in for both
+      // user prefs and local state.
+      component_loader_(&extension_service_, &prefs_, &prefs_) {
+  }
+
+  void SetUp() {
+    FilePath test_data_dir;
+    ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &test_data_dir));
+    extension_path_ =
+        test_data_dir.AppendASCII("extensions")
+                     .AppendASCII("good")
+                     .AppendASCII("Extensions")
+                     .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
+                     .AppendASCII("1.0.0.0");
+
+    // Read in the extension manifest.
+    ASSERT_TRUE(file_util::ReadFileToString(
+        extension_path_.Append(Extension::kManifestFilename),
+                               &manifest_contents_));
+
+    // Register the user prefs that ComponentLoader will read.
+    prefs_.RegisterStringPref(prefs::kEnterpriseWebStoreURL, std::string());
+    prefs_.RegisterStringPref(prefs::kEnterpriseWebStoreName, std::string());
+
+    // Register the local state prefs.
+#if defined(OS_CHROMEOS)
+    prefs_.RegisterBooleanPref(prefs::kAccessibilityEnabled, false);
+#endif
+  }
+
+ protected:
+  MockExtensionService extension_service_;
+  TestingPrefService prefs_;
+  ComponentLoader component_loader_;
+
+  // The root directory of the text extension.
+  FilePath extension_path_;
+
+  // The contents of the text extension's manifest file.
+  std::string manifest_contents_;
+};
+
+TEST_F(ComponentLoaderTest, ParseManifest) {
+  scoped_ptr<DictionaryValue> manifest;
+
+  // Test invalid JSON.
+  manifest.reset(
+      component_loader_.ParseManifest("{ 'test': 3 } invalid"));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  // Test manifests that are valid JSON, but don't have an object literal
+  // at the root. ParseManifest() should always return NULL.
+
+  manifest.reset(component_loader_.ParseManifest(""));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  manifest.reset(component_loader_.ParseManifest("[{ \"foo\": 3 }]"));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  manifest.reset(component_loader_.ParseManifest("\"Test\""));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  manifest.reset(component_loader_.ParseManifest("42"));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  manifest.reset(component_loader_.ParseManifest("true"));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  manifest.reset(component_loader_.ParseManifest("false"));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  manifest.reset(component_loader_.ParseManifest("null"));
+  ASSERT_EQ((DictionaryValue*)NULL, manifest.get());
+
+  // Test parsing valid JSON.
+
+  int value;
+  manifest.reset(component_loader_.ParseManifest(
+      "{ \"test\": { \"one\": 1 }, \"two\": 2 }"));
+  ASSERT_NE(manifest.get(), (DictionaryValue*)NULL);
+  ASSERT_TRUE(manifest->GetInteger("test.one", &value));
+  ASSERT_EQ(1, value);
+  ASSERT_TRUE(manifest->GetInteger("two", &value));
+  ASSERT_EQ(2, value);
+
+  std::string string_value;
+  manifest.reset(component_loader_.ParseManifest(manifest_contents_));
+  ASSERT_TRUE(manifest->GetString("background_page", &string_value));
+  ASSERT_EQ("backgroundpage.html", string_value);
+}
+
+// Test that the extension isn't loaded if the extension service isn't ready.
+TEST_F(ComponentLoaderTest, AddWhenNotReady) {
+  scoped_refptr<const Extension> extension;
+  extension_service_.set_ready(false);
+  extension = component_loader_.Add(manifest_contents_, extension_path_);
+  ASSERT_EQ((Extension*)NULL, extension.get());
+  ASSERT_EQ(0U, extension_service_.extensions()->size());
+}
+
+// Test that it *is* loaded when the extension service *is* ready.
+TEST_F(ComponentLoaderTest, AddWhenReady) {
+  scoped_refptr<const Extension> extension;
+  extension_service_.set_ready(true);
+  extension = component_loader_.Add(manifest_contents_, extension_path_);
+  ASSERT_NE((Extension*)NULL, extension.get());
+  ASSERT_EQ(1U, extension_service_.extensions()->size());
+}
+
+TEST_F(ComponentLoaderTest, Remove) {
+  extension_service_.set_ready(false);
+
+  // Removing an extension that was never added should be ok.
+  component_loader_.Remove(extension_path_);
+  ASSERT_EQ(0U, extension_service_.extensions()->size());
+
+  // Try adding and removing before LoadAll() is called.
+  component_loader_.Add(manifest_contents_, extension_path_);
+  component_loader_.Remove(extension_path_);
+  component_loader_.LoadAll();
+  ASSERT_EQ(0U, extension_service_.extensions()->size());
+
+  // Load an extension, and check that it's unloaded when Remove() is called.
+  scoped_refptr<const Extension> extension;
+  extension_service_.set_ready(true);
+  extension = component_loader_.Add(manifest_contents_, extension_path_);
+  ASSERT_NE((Extension*)NULL, extension.get());
+  component_loader_.Remove(extension_path_);
+  ASSERT_EQ(0U, extension_service_.extensions()->size());
+
+  // And after calling LoadAll(), it shouldn't get loaded.
+  component_loader_.LoadAll();
+  ASSERT_EQ(0U, extension_service_.extensions()->size());
+}
+
+TEST_F(ComponentLoaderTest, LoadAll) {
+  extension_service_.set_ready(false);
+
+  // No extensions should be loaded if none were added.
+  component_loader_.LoadAll();
+  ASSERT_EQ(0U, extension_service_.extensions()->size());
+
+  // Use LoadAll() to load the default extensions.
+  component_loader_.AddDefaultComponentExtensions();
+  component_loader_.LoadAll();
+  unsigned int default_count = extension_service_.extensions()->size();
+
+  // Clear the list of loaded extensions, and reload with one more.
+  extension_service_.clear_extension_list();
+  component_loader_.Add(manifest_contents_, extension_path_);
+  component_loader_.LoadAll();
+
+  ASSERT_EQ(default_count + 1, extension_service_.extensions()->size());
+}
+
+TEST_F(ComponentLoaderTest, EnterpriseWebStore) {
+  component_loader_.AddDefaultComponentExtensions();
+  component_loader_.LoadAll();
+  unsigned int default_count = extension_service_.extensions()->size();
+
+  // Set the pref, and it should get loaded automatically.
+  extension_service_.set_ready(true);
+  prefs_.SetUserPref(prefs::kEnterpriseWebStoreURL,
+                     Value::CreateStringValue("http://www.google.com"));
+  ASSERT_EQ(default_count + 1, extension_service_.extensions()->size());
+
+  // Now that the pref is set, check if it's added by default.
+  extension_service_.set_ready(false);
+  extension_service_.clear_extension_list();
+  component_loader_.ClearAllRegistered();
+  component_loader_.AddDefaultComponentExtensions();
+  component_loader_.LoadAll();
+  ASSERT_EQ(default_count + 1, extension_service_.extensions()->size());
+
+  // Number of loaded extensions should be the same after changing the pref.
+  prefs_.SetUserPref(prefs::kEnterpriseWebStoreURL,
+                     Value::CreateStringValue("http://www.google.de"));
+  ASSERT_EQ(default_count + 1, extension_service_.extensions()->size());
+}
+
+}  // namespace extensions