// 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.
 
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CSharp.Structure;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Structure;
using Microsoft.CodeAnalysis.Test.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.Structure.MetadataAsSource;
 
[Trait(Traits.Feature, Traits.Features.MetadataAsSource)]
public class DelegateDeclarationStructureTests : AbstractCSharpSyntaxNodeStructureTests<DelegateDeclarationSyntax>
{
    protected override string WorkspaceKind => CodeAnalysis.WorkspaceKind.MetadataAsSource;
    internal override AbstractSyntaxStructureProvider CreateProvider() => new DelegateDeclarationStructureProvider();
 
    [Fact]
    public async Task NoCommentsOrAttributes()
    {
        var code = """
                public delegate TResult $$Blah<in T, out TResult>(T arg);
                """;
 
        await VerifyNoBlockSpansAsync(code);
    }
 
    [Fact]
    public async Task WithAttributes()
    {
        var code = """
                {|hint:{|textspan:[Goo]
                |}public delegate TResult $$Blah<in T, out TResult>(T arg);|}
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
    }
 
    [Fact]
    public async Task WithCommentsAndAttributes()
    {
        var code = """
                {|hint:{|textspan:// Summary:
                //     This is a summary.
                [Goo]
                |}delegate TResult $$Blah<in T, out TResult>(T arg);|}
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
    }
 
    [Fact]
    public async Task WithCommentsAttributesAndModifiers()
    {
        var code = """
                {|hint:{|textspan:// Summary:
                //     This is a summary.
                [Goo]
                |}public delegate TResult $$Blah<in T, out TResult>(T arg);|}
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
    }
}