chromium/base/task/delayed_task_handle_unittest.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/task/delayed_task_handle.h"

#include "base/memory/raw_ptr.h"
#include "base/test/gtest_util.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace base {

namespace {

// A non-working delegate that allows the testing of DelayedTaskHandle.
class TestDelegate : public DelayedTaskHandle::Delegate { … };

}  // namespace

// Tests that a default-constructed handle is invalid.
TEST(DelayedTaskHandleTest, DefaultConstructor) { … }

// Tests that creating a handle with an invalid delegate will DCHECK.
TEST(DelayedTaskHandleTest, RequiresValidDelegateOnConstruction) { … }

// Tests that calling CancelTask() on the handle will call CancelTask() on the
// delegate and invalidate it.
TEST(DelayedTaskHandleTest, CancelTask) { … }

// Tests that calling CancelTask() on a handle with no delegate will no-op.
TEST(DelayedTaskHandleTest, CancelTaskNoDelegate) { … }

// Tests that calling CancelTask() on a handle with an invalid delegate doesn't
// crash and keeps the handle invalid.
TEST(DelayedTaskHandleTest, CancelTaskInvalidDelegate) { … }

// Tests that invalidating the delegate will also invalidate the handle.
TEST(DelayedTaskHandleTest, InvalidateDelegate) { … }

// Tests that destroying a valid handle will DCHECK.
TEST(DelayedTaskHandleTest, InvalidOnDestuction) { … }

// Tests the move-constructor.
TEST(DelayedTaskHandleTest, MoveConstructor) { … }

// Tests the move-assignment.
TEST(DelayedTaskHandleTest, MoveAssignment) { … }

// Tests that assigning to a valid handle will DCHECK.
TEST(DelayedTaskHandleTest, AssignToValidHandle) { … }

}  // namespace base