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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 "device/fido/test_callback_receiver.h"
- #include <memory>
- #include <tuple>
- #include <utility>
- #include "base/test/bind.h"
- #include "base/test/task_environment.h"
- #include "base/threading/thread_task_runner_handle.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace device {
- namespace test {
- namespace {
- // Simple class that resets a boolean flag when moved out from.
- class MoveResets {
- public:
- MoveResets() = default;
- MoveResets(bool value) : value_(value) {} // NOLINT(runtime/explicit)
- MoveResets(const MoveResets&) = default;
- MoveResets(MoveResets&& other) : value_(std::exchange(other.value_, false)) {}
- MoveResets& operator=(const MoveResets&) = default;
- MoveResets& operator=(MoveResets&& other) {
- value_ = std::exchange(other.value_, false);
- return *this;
- }
- ~MoveResets() = default;
- bool value() const { return value_; }
- private:
- bool value_ = false;
- };
- } // namespace
- TEST(TestCallbackReceiver, BasicClosure) {
- base::test::TaskEnvironment task_environment;
- TestCallbackReceiver<> closure_receiver;
- auto closure = closure_receiver.callback();
- EXPECT_FALSE(closure_receiver.was_called());
- EXPECT_FALSE(closure_receiver.result().has_value());
- EXPECT_TRUE(closure);
- std::move(closure).Run();
- EXPECT_TRUE(closure_receiver.was_called());
- EXPECT_TRUE(closure_receiver.result().has_value());
- EXPECT_EQ(std::tuple<>(), closure_receiver.TakeResult());
- EXPECT_TRUE(closure_receiver.was_called());
- EXPECT_FALSE(closure_receiver.result().has_value());
- }
- TEST(TestCallbackReceiver, BasicCopyableArgument) {
- base::test::TaskEnvironment task_environment;
- TestCallbackReceiver<int> callback_receiver;
- auto callback = callback_receiver.callback();
- EXPECT_FALSE(callback_receiver.was_called());
- EXPECT_FALSE(callback_receiver.result().has_value());
- EXPECT_TRUE(callback);
- std::move(callback).Run(42);
- EXPECT_TRUE(callback_receiver.was_called());
- EXPECT_TRUE(callback_receiver.result().has_value());
- EXPECT_EQ(std::make_tuple<int>(42), callback_receiver.TakeResult());
- EXPECT_TRUE(callback_receiver.was_called());
- EXPECT_FALSE(callback_receiver.result().has_value());
- }
- TEST(TestCallbackReceiver, MoveOnlyArgumentIsMoved) {
- base::test::TaskEnvironment task_environment;
- TestCallbackReceiver<std::unique_ptr<int>> callback_receiver;
- auto callback = callback_receiver.callback();
- std::move(callback).Run(std::make_unique<int>(42));
- auto result = callback_receiver.TakeResult();
- static_assert(std::tuple_size<decltype(result)>::value == 1u,
- "The returned tuple should be one-dimensional");
- ASSERT_TRUE(std::get<0>(result));
- EXPECT_EQ(42, *std::get<0>(result));
- }
- TEST(TestCallbackReceiver, ReferenceArgumentIsCopied) {
- base::test::TaskEnvironment task_environment;
- TestCallbackReceiver<MoveResets&> callback_receiver;
- MoveResets passed_in_value = true;
- auto callback = callback_receiver.callback();
- EXPECT_FALSE(callback_receiver.result().has_value());
- // Make sure |passed_in_value| is not moved from.
- std::move(callback).Run(passed_in_value);
- EXPECT_TRUE(passed_in_value.value());
- EXPECT_TRUE(callback_receiver.result().has_value());
- const MoveResets& received_value = std::get<0>(*callback_receiver.result());
- EXPECT_EQ(passed_in_value.value(), received_value.value());
- // Make sure |received_value| is not a reference to |passed_in_value|.
- passed_in_value = false;
- EXPECT_NE(passed_in_value.value(), received_value.value());
- callback_receiver.TakeResult();
- EXPECT_FALSE(callback_receiver.result().has_value());
- }
- TEST(TestCallbackReceiver, StatusAndValue) {
- enum class TestStatus { NOT_OK, OK };
- base::test::TaskEnvironment task_environment;
- StatusAndValueCallbackReceiver<TestStatus, std::unique_ptr<int>>
- callback_receiver;
- auto callback = callback_receiver.callback();
- EXPECT_FALSE(callback_receiver.was_called());
- EXPECT_TRUE(callback);
- std::move(callback).Run(TestStatus::OK, std::make_unique<int>(1337));
- EXPECT_TRUE(callback_receiver.was_called());
- EXPECT_EQ(TestStatus::OK, callback_receiver.status());
- EXPECT_EQ(1337, *callback_receiver.value());
- }
- TEST(TestCallbackReceiver, WaitForCallback) {
- base::test::TaskEnvironment task_environment;
- TestCallbackReceiver<> closure_receiver;
- auto closure = closure_receiver.callback();
- EXPECT_FALSE(closure_receiver.was_called());
- EXPECT_TRUE(closure);
- base::ThreadTaskRunnerHandle::Get()->PostTask(
- FROM_HERE,
- base::BindLambdaForTesting([&closure]() { std::move(closure).Run(); }));
- EXPECT_FALSE(closure_receiver.was_called());
- closure_receiver.WaitForCallback();
- EXPECT_TRUE(closure_receiver.was_called());
- }
- TEST(TestCallbackReceiver, WaitForCallbackAfterCallback) {
- base::test::TaskEnvironment task_environment;
- TestCallbackReceiver<> closure_receiver;
- auto closure = closure_receiver.callback();
- EXPECT_FALSE(closure_receiver.was_called());
- EXPECT_TRUE(closure);
- std::move(closure).Run();
- EXPECT_TRUE(closure_receiver.was_called());
- closure_receiver.WaitForCallback();
- EXPECT_TRUE(closure_receiver.was_called());
- }
- } // namespace test
- } // namespace device
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