// 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;
 
[Trait(Traits.Feature, Traits.Features.Outlining)]
public class IndexerDeclarationStructureTests : AbstractCSharpSyntaxNodeStructureTests<IndexerDeclarationSyntax>
{
    internal override AbstractSyntaxStructureProvider CreateProvider() => new IndexerDeclarationStructureProvider();
 
    [Fact]
    public async Task TestIndexer1()
    {
        var code = """
                class C
                {
                    {|hint:$$public string this[int index]{|textspan:
                    {
                        get { }
                    }|}|}
                }
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
    }
 
    [Fact]
    public async Task TestIndexer2()
    {
        var code = """
                class C
                {
                    {|hint:$$public string this[int index]{|textspan:
                    {
                        get { }
                    }|}|}
                    int Value => 0;
                }
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
    }
 
    [Fact]
    public async Task TestIndexer3()
    {
        var code = """
                class C
                {
                    {|hint:$$public string this[int index]{|textspan:
                    {
                        get { }
                    }|}|}
 
                    int Value => 0;
                }
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
    }
 
    [Fact]
    public async Task TestIndexerWithComments()
    {
        var code = """
                class C
                {
                    {|span1:// Goo
                    // Bar|}
                    {|hint2:$$public string this[int index]{|textspan2:
                    {
                        get { }
                    }|}|}
                }
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("span1", "// Goo ...", autoCollapse: true),
            Region("textspan2", "hint2", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
    }
 
    [Fact]
    public async Task TestIndexerWithWithExpressionBodyAndComments()
    {
        var code = """
                class C
                {
                    {|span:// Goo
                    // Bar|}
                    $$public string this[int index] => 0;
                }
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("span", "// Goo ...", autoCollapse: true));
    }
}