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// Copyright 2018 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/extension_browsertest.h"
#include "extensions/browser/extension_function_registry.h"
#include "extensions/browser/extension_system.h"
#include "extensions/common/one_shot_event.h"
namespace extensions {
using ExtensionFunctionRegistrationTest = ExtensionBrowserTest;
// Test that all functions are registered with unique names, histogram values,
// and factories. This is a browser test (rather than a unit test) to (help)
// ensure that all the optional factories and services are indeed instantiated.
IN_PROC_BROWSER_TEST_F(ExtensionFunctionRegistrationTest,
CheckForDuplicateEntries) {
// Verify the ExtensionSystem is ready (and thus all extension functions
// registered) before checking.
base::RunLoop run_loop;
ExtensionSystem::Get(profile())->ready().Post(FROM_HERE,
run_loop.QuitClosure());
run_loop.Run();
const ExtensionFunctionRegistry::FactoryMap& factories =
ExtensionFunctionRegistry::GetInstance().GetFactoriesForTesting();
// Sanity check: Many, many functions should have been registered.
EXPECT_GT(factories.size(), 500u);
std::set<std::string> seen_names;
std::set<functions::HistogramValue> seen_histograms;
for (const auto& key_value : factories) {
const ExtensionFunctionRegistry::FactoryEntry& entry = key_value.second;
SCOPED_TRACE(entry.function_name_);
EXPECT_TRUE(seen_names.insert(entry.function_name_).second);
// NOTE: We explicitly don't check the factory here. On certain platforms
// with enough compiler optimization, the templated factories are re-used
// for different functions.
// EXPECT_TRUE(seen_factories.insert(entry.factory_).second);
// The chrome.test API uses an "unknown" histogram value, but should be the
// only API that does.
if (entry.histogram_value_ == functions::UNKNOWN) {
EXPECT_TRUE(base::StartsWith(entry.function_name_, "test.",
base::CompareCase::SENSITIVE));
} else {
EXPECT_TRUE(seen_histograms.insert(entry.histogram_value_).second);
}
}
}
} // namespace extensions
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