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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/upgrade_detector/registry_monitor.h"
#include "base/run_loop.h"
#include "base/test/mock_callback.h"
#include "base/test/task_environment.h"
#include "base/test/test_reg_util_win.h"
#include "base/win/registry.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
class RegistryMonitorTest : public ::testing::Test {
protected:
void SetUp() override {
ASSERT_NO_FATAL_FAILURE(
registry_override_.OverrideRegistry(HKEY_CURRENT_USER));
ASSERT_EQ(test_key_.Create(HKEY_CURRENT_USER,
L"Software\\Chromium\\RegistryMonitorTest",
KEY_SET_VALUE),
ERROR_SUCCESS);
}
// Returns the test registry key to monitor. |access| may be used to override
// the default access rights for the key.
base::win::RegKey GetKeyToMonitor(REGSAM access = KEY_NOTIFY) {
base::win::RegKey key;
EXPECT_EQ(key.Open(test_key_.Handle(), L"", access), ERROR_SUCCESS);
return key;
}
registry_util::RegistryOverrideManager registry_override_;
base::win::RegKey test_key_;
base::test::TaskEnvironment task_environment_;
};
// Tests that the callback is invoked when the key is invalid.
TEST_F(RegistryMonitorTest, ErrorOnInvalidKey) {
RegistryMonitor monitor{base::win::RegKey()};
::testing::StrictMock<base::MockRepeatingCallback<void(bool)>> callback;
base::RunLoop run_loop;
EXPECT_CALL(callback, Run(true)).WillOnce([&run_loop]() { run_loop.Quit(); });
monitor.Start(callback.Get());
run_loop.Run();
}
// Tests that the callback is invoked when the key doesn't have NOTIFY access.
TEST_F(RegistryMonitorTest, ErrorOnWrongPerms) {
RegistryMonitor monitor(GetKeyToMonitor(KEY_QUERY_VALUE));
::testing::StrictMock<base::MockRepeatingCallback<void(bool)>> callback;
base::RunLoop run_loop;
EXPECT_CALL(callback, Run(true)).WillOnce([&run_loop]() { run_loop.Quit(); });
monitor.Start(callback.Get());
run_loop.Run();
}
// Tests that the callback is not invoked when nothing happens.
TEST_F(RegistryMonitorTest, NoNoise) {
RegistryMonitor monitor(GetKeyToMonitor());
::testing::StrictMock<base::MockRepeatingCallback<void(bool)>> callback;
monitor.Start(callback.Get());
task_environment_.RunUntilIdle();
}
// Tests that the callback is invoked when the key is modified.
TEST_F(RegistryMonitorTest, OneChange) {
RegistryMonitor monitor(GetKeyToMonitor());
::testing::StrictMock<base::MockRepeatingCallback<void(bool)>> callback;
base::RunLoop run_loop;
EXPECT_CALL(callback, Run(false)).WillOnce([&run_loop]() {
run_loop.Quit();
});
monitor.Start(callback.Get());
test_key_.WriteValue(L"some value", L"hi, mom");
run_loop.Run();
}
// Tests that the callback is invoked multiple times for multiple modifications.
TEST_F(RegistryMonitorTest, MultipleChanges) {
RegistryMonitor monitor(GetKeyToMonitor());
::testing::StrictMock<base::MockRepeatingCallback<void(bool)>> callback;
::testing::InSequence sequence;
base::RunLoop run_loop;
base::RunLoop run_loop2;
EXPECT_CALL(callback, Run(false)).WillOnce([&run_loop]() {
run_loop.Quit();
});
EXPECT_CALL(callback, Run(false)).WillOnce([&run_loop2]() {
run_loop2.Quit();
});
monitor.Start(callback.Get());
test_key_.WriteValue(L"some value", L"hi, mom");
run_loop.Run();
test_key_.WriteValue(L"some value", L"hi, dad");
run_loop2.Run();
}
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