// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
#nullable disable
 
using System;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CSharp.KeywordHighlighting.KeywordHighlighters;
using Microsoft.CodeAnalysis.Test.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.KeywordHighlighting;
 
public class AsyncLocalFunctionHighlighterTests : AbstractCSharpKeywordHighlighterTests
{
    internal override Type GetHighlighterType()
        => typeof(AsyncAwaitHighlighter);
 
    [Fact, Trait(Traits.Feature, Traits.Features.KeywordHighlighting)]
    public async Task TestLocalFunction()
    {
        await TestAsync(
            """
            using System;
            using System.Threading.Tasks;
 
            class AsyncExample
            {
                async Task<int> AsyncMethod()
                {
                    int hours = 24;
                    return hours;
                }
 
                async Task UseAsync()
                {
                    {|Cursor:[|async|]|} Task<int> function()
                    {
                        return [|await|] AsyncMethod();
                    }
                    int result = await AsyncMethod();
                    Task<int> resultTask = AsyncMethod();
                    result = await resultTask;
                    result = await function();
                }
            }
            """);
    }
}