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// 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.
// TODO(rickcam): Bug 73183: Add unit tests for image loading
#include <cstdlib>
#include <set>
#include "chrome/browser/background_application_list_model.h"
#include "base/command_line.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/message_loop.h"
#include "base/scoped_ptr.h"
#include "base/stl_util-inl.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/test/testing_profile.h"
#include "content/browser/browser_thread.h"
#include "content/common/notification_registrar.h"
#include "content/common/notification_service.h"
#include "content/common/notification_type.h"
#include "testing/gtest/include/gtest/gtest.h"
// This value is used to seed the PRNG at the beginning of a sequence of
// operations to produce a repeatable sequence.
#define RANDOM_SEED (0x33F7A7A7)
// For ExtensionService interface when it requires a path that is not used.
FilePath bogus_file_path() {
return FilePath(FILE_PATH_LITERAL("//foobar_nonexistent"));
}
class BackgroundApplicationListModelTest : public testing::Test {
public:
BackgroundApplicationListModelTest();
~BackgroundApplicationListModelTest();
virtual void InitializeEmptyExtensionService();
protected:
scoped_ptr<Profile> profile_;
scoped_refptr<ExtensionService> service_;
MessageLoop loop_;
BrowserThread ui_thread_;
};
// The message loop may be used in tests which require it to be an IO loop.
BackgroundApplicationListModelTest::BackgroundApplicationListModelTest()
: loop_(MessageLoop::TYPE_IO),
ui_thread_(BrowserThread::UI, &loop_) {
}
BackgroundApplicationListModelTest::~BackgroundApplicationListModelTest() {
// Drop reference to ExtensionService and TestingProfile, so that they can be
// destroyed while BrowserThreads and MessageLoop are still around. They
// are used in the destruction process.
service_ = NULL;
profile_.reset(NULL);
MessageLoop::current()->RunAllPending();
}
// This is modeled on a similar routine in ExtensionServiceTestBase.
void BackgroundApplicationListModelTest::InitializeEmptyExtensionService() {
TestingProfile* profile = new TestingProfile();
profile_.reset(profile);
service_ = profile->CreateExtensionService(
CommandLine::ForCurrentProcess(),
bogus_file_path());
service_->set_extensions_enabled(true);
service_->set_show_extensions_prompts(false);
service_->OnLoadedInstalledExtensions(); /* Sends EXTENSIONS_READY */
}
// Returns a barebones test Extension object with the specified |name|. The
// returned extension will include background permission iff
// |background_permission| is true.
static scoped_refptr<Extension> CreateExtension(const std::string& name,
bool background_permission) {
DictionaryValue manifest;
manifest.SetString(extension_manifest_keys::kVersion, "1.0.0.0");
manifest.SetString(extension_manifest_keys::kName, name);
if (background_permission) {
ListValue* permissions = new ListValue();
manifest.Set(extension_manifest_keys::kPermissions, permissions);
permissions->Append(Value::CreateStringValue("background"));
}
std::string error;
scoped_refptr<Extension> extension = Extension::Create(
bogus_file_path().AppendASCII(name), Extension::INVALID, manifest, false,
true, &error);
// Cannot ASSERT_* here because that attempts an illegitimate return.
// Cannot EXPECT_NE here because that assumes non-pointers unlike EXPECT_EQ
EXPECT_TRUE(extension.get() != NULL) << error;
return extension;
}
// With minimal test logic, verifies behavior over an explicit set of
// extensions, of which some are Background Apps and others are not.
TEST_F(BackgroundApplicationListModelTest, LoadExplicitExtensions) {
InitializeEmptyExtensionService();
ExtensionService* service = profile_->GetExtensionService();
ASSERT_TRUE(service);
ASSERT_TRUE(service->is_ready());
ASSERT_TRUE(service->extensions());
ASSERT_TRUE(service->extensions()->empty());
scoped_ptr<BackgroundApplicationListModel> model(
new BackgroundApplicationListModel(profile_.get()));
ASSERT_EQ(0U, model->size());
scoped_refptr<Extension> ext1 = CreateExtension("alpha", false);
scoped_refptr<Extension> ext2 = CreateExtension("bravo", false);
scoped_refptr<Extension> ext3 = CreateExtension("charlie", false);
scoped_refptr<Extension> bgapp1 = CreateExtension("delta", true);
scoped_refptr<Extension> bgapp2 = CreateExtension("echo", true);
ASSERT_TRUE(service->extensions() != NULL);
ASSERT_EQ(0U, service->extensions()->size());
ASSERT_EQ(0U, model->size());
// Add alternating Extensions and Background Apps
ASSERT_FALSE(BackgroundApplicationListModel::IsBackgroundApp(*ext1));
service->AddExtension(ext1);
ASSERT_EQ(1U, service->extensions()->size());
ASSERT_EQ(0U, model->size());
ASSERT_TRUE(BackgroundApplicationListModel::IsBackgroundApp(*bgapp1));
service->AddExtension(bgapp1);
ASSERT_EQ(2U, service->extensions()->size());
ASSERT_EQ(1U, model->size());
ASSERT_FALSE(BackgroundApplicationListModel::IsBackgroundApp(*ext2));
service->AddExtension(ext2);
ASSERT_EQ(3U, service->extensions()->size());
ASSERT_EQ(1U, model->size());
ASSERT_TRUE(BackgroundApplicationListModel::IsBackgroundApp(*bgapp2));
service->AddExtension(bgapp2);
ASSERT_EQ(4U, service->extensions()->size());
ASSERT_EQ(2U, model->size());
ASSERT_FALSE(BackgroundApplicationListModel::IsBackgroundApp(*ext3));
service->AddExtension(ext3);
ASSERT_EQ(5U, service->extensions()->size());
ASSERT_EQ(2U, model->size());
// Remove in FIFO order.
ASSERT_FALSE(BackgroundApplicationListModel::IsBackgroundApp(*ext1));
service->UninstallExtension(ext1->id(), false);
ASSERT_EQ(4U, service->extensions()->size());
ASSERT_EQ(2U, model->size());
ASSERT_TRUE(BackgroundApplicationListModel::IsBackgroundApp(*bgapp1));
service->UninstallExtension(bgapp1->id(), false);
ASSERT_EQ(3U, service->extensions()->size());
ASSERT_EQ(1U, model->size());
ASSERT_FALSE(BackgroundApplicationListModel::IsBackgroundApp(*ext2));
service->UninstallExtension(ext2->id(), false);
ASSERT_EQ(2U, service->extensions()->size());
ASSERT_EQ(1U, model->size());
ASSERT_TRUE(BackgroundApplicationListModel::IsBackgroundApp(*bgapp2));
service->UninstallExtension(bgapp2->id(), false);
ASSERT_EQ(1U, service->extensions()->size());
ASSERT_EQ(0U, model->size());
ASSERT_FALSE(BackgroundApplicationListModel::IsBackgroundApp(*ext3));
service->UninstallExtension(ext3->id(), false);
ASSERT_EQ(0U, service->extensions()->size());
ASSERT_EQ(0U, model->size());
}
typedef std::set<scoped_refptr<Extension> > ExtensionSet;
namespace {
std::string GenerateUniqueExtensionName() {
static int uniqueness = 0;
std::ostringstream output;
output << "Unique Named Extension " << uniqueness;
++uniqueness;
return output.str();
}
}
// Verifies behavior with a pseudo-randomly generated set of actions: Adding and
// removing extensions, of which some are Background Apps and others are not.
TEST_F(BackgroundApplicationListModelTest, LoadRandomExtension) {
InitializeEmptyExtensionService();
ExtensionService* service = profile_->GetExtensionService();
ASSERT_TRUE(service);
ASSERT_TRUE(service->is_ready());
ASSERT_TRUE(service->extensions());
ASSERT_TRUE(service->extensions()->empty());
scoped_ptr<BackgroundApplicationListModel> model(
new BackgroundApplicationListModel(profile_.get()));
ASSERT_EQ(0U, model->size());
static const int kIterations = 500;
ExtensionSet extensions;
size_t count = 0;
size_t expected = 0;
srand(RANDOM_SEED);
for (int index = 0; index < kIterations; ++index) {
if (rand() % 2) { // Add an extension
std::string name = GenerateUniqueExtensionName();
bool create_background = false;
if (rand() % 2) {
create_background = true;
++expected;
}
scoped_refptr<Extension> extension =
CreateExtension(name, create_background);
ASSERT_EQ(BackgroundApplicationListModel::IsBackgroundApp(*extension),
create_background);
extensions.insert(extension);
++count;
ASSERT_EQ(count, extensions.size());
service->AddExtension(extension);
ASSERT_EQ(count, service->extensions()->size());
ASSERT_EQ(expected, model->size());
} else { // Maybe remove an extension.
ExtensionSet::iterator cursor = extensions.begin();
if (cursor == extensions.end()) {
// Nothing to remove. Just verify accounting.
ASSERT_EQ(0U, count);
ASSERT_EQ(0U, expected);
ASSERT_EQ(0U, service->extensions()->size());
ASSERT_EQ(0U, model->size());
} else {
// Randomly select which extension to remove
if (extensions.size() > 1) {
int offset = rand() % (extensions.size() - 1);
for (int index = 0; index < offset; ++index)
++cursor;
}
scoped_refptr<Extension> extension = cursor->get();
std::string id = extension->id();
if (BackgroundApplicationListModel::IsBackgroundApp(*extension))
--expected;
extensions.erase(cursor);
--count;
ASSERT_EQ(count, extensions.size());
service->UninstallExtension(extension->id(), false);
ASSERT_EQ(count, service->extensions()->size());
ASSERT_EQ(expected, model->size());
}
}
}
}
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