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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/browser/process_manager.h"
#include "build/android_buildflags.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/site_instance.h"
#include "content/public/common/content_client.h"
#include "content/public/test/test_browser_context.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extensions_test.h"
#include "extensions/browser/process_manager_delegate.h"
#include "extensions/browser/test_extensions_browser_client.h"
using content::BrowserContext;
using content::SiteInstance;
using content::TestBrowserContext;
namespace extensions {
namespace {
// A trivial ProcessManagerDelegate.
class TestProcessManagerDelegate : public ProcessManagerDelegate {
public:
TestProcessManagerDelegate()
: is_background_page_allowed_(true),
defer_creating_startup_background_hosts_(false) {}
~TestProcessManagerDelegate() override {}
// ProcessManagerDelegate implementation.
bool AreBackgroundPagesAllowedForContext(
BrowserContext* context) const override {
return is_background_page_allowed_;
}
bool IsExtensionBackgroundPageAllowed(
BrowserContext* context,
const Extension& extension) const override {
return is_background_page_allowed_;
}
bool DeferCreatingStartupBackgroundHosts(
BrowserContext* context) const override {
return defer_creating_startup_background_hosts_;
}
bool is_background_page_allowed_;
bool defer_creating_startup_background_hosts_;
};
} // namespace
class ProcessManagerTest : public ExtensionsTest {
public:
ProcessManagerTest() {}
ProcessManagerTest(const ProcessManagerTest&) = delete;
ProcessManagerTest& operator=(const ProcessManagerTest&) = delete;
~ProcessManagerTest() override {}
void SetUp() override {
ExtensionsTest::SetUp();
extension_registry_ =
std::make_unique<ExtensionRegistry>(browser_context());
extensions_browser_client()->set_process_manager_delegate(
&process_manager_delegate_);
}
void TearDown() override {
extensions_browser_client()->set_process_manager_delegate(nullptr);
extension_registry_.reset();
ExtensionsTest::TearDown();
}
// Use original_context() to make it clear it is a non-incognito context.
BrowserContext* original_context() { return browser_context(); }
ExtensionRegistry* extension_registry() { return extension_registry_.get(); }
TestProcessManagerDelegate* process_manager_delegate() {
return &process_manager_delegate_;
}
private:
std::unique_ptr<ExtensionRegistry>
extension_registry_; // Shared between BrowserContexts.
TestProcessManagerDelegate process_manager_delegate_;
};
// Test that startup background hosts are created when the extension system
// becomes ready.
//
// NOTE: This test and those that follow do not try to create ExtensionsHosts
// because ExtensionHost is tightly coupled to WebContents and can't be
// constructed in unit tests.
TEST_F(ProcessManagerTest, CreateBackgroundHostsOnExtensionsReady) {
ProcessManager manager(original_context(), extension_registry());
ASSERT_FALSE(manager.startup_background_hosts_created_for_test());
// Simulate the extension system becoming ready.
extension_system()->SetReady();
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(manager.startup_background_hosts_created_for_test());
}
// Test that the embedder can defer background host creation. Chrome does this
// when the profile is created asynchronously, which may take a while.
TEST_F(ProcessManagerTest, CreateBackgroundHostsDeferred) {
ProcessManager manager(original_context(), extension_registry());
ASSERT_FALSE(manager.startup_background_hosts_created_for_test());
// Don't create background hosts if the delegate says to defer them.
process_manager_delegate()->defer_creating_startup_background_hosts_ = true;
manager.MaybeCreateStartupBackgroundHosts();
EXPECT_FALSE(manager.startup_background_hosts_created_for_test());
// The extension system becoming ready still doesn't create the hosts.
extension_system()->SetReady();
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(manager.startup_background_hosts_created_for_test());
// Once the embedder is ready the background hosts can be created.
process_manager_delegate()->defer_creating_startup_background_hosts_ = false;
manager.MaybeCreateStartupBackgroundHosts();
EXPECT_TRUE(manager.startup_background_hosts_created_for_test());
}
// Test that the embedder can disallow background host creation.
// Chrome OS does this in guest mode.
TEST_F(ProcessManagerTest, IsBackgroundHostAllowed) {
ProcessManager manager(original_context(), extension_registry());
ASSERT_FALSE(manager.startup_background_hosts_created_for_test());
// Don't create background hosts if the delegate disallows them.
process_manager_delegate()->is_background_page_allowed_ = false;
manager.MaybeCreateStartupBackgroundHosts();
EXPECT_FALSE(manager.startup_background_hosts_created_for_test());
// The extension system becoming ready still doesn't create the hosts.
extension_system()->SetReady();
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(manager.startup_background_hosts_created_for_test());
}
} // namespace extensions
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