// 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 EnumDeclarationStructureTests : AbstractCSharpSyntaxNodeStructureTests<EnumDeclarationSyntax>
{
    internal override AbstractSyntaxStructureProvider CreateProvider() => new EnumDeclarationStructureProvider();
 
    [Fact]
    public async Task TestEnum1()
    {
        var code = """
                {|hint:$$enum E{|textspan:
                {
                }|}|}
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: false));
    }
 
    [Theory]
    [InlineData("enum")]
    [InlineData("struct")]
    [InlineData("class")]
    [InlineData("interface")]
    public async Task TestEnum2(string typeKind)
    {
        var code = $@"
{{|hint:$$enum E{{|textspan:
{{
}}|}}|}}
{typeKind} Following
{{
}}";
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: false));
    }
 
    [Theory]
    [InlineData("enum")]
    [InlineData("struct")]
    [InlineData("class")]
    [InlineData("interface")]
    public async Task TestEnum3(string typeKind)
    {
        var code = $@"
{{|hint:$$enum E{{|textspan:
{{
}}|}}|}}
 
{typeKind} Following
{{
}}";
 
        await VerifyBlockSpansAsync(code,
            Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: false));
    }
 
    [Fact]
    public async Task TestEnumWithLeadingComments()
    {
        var code = """
                {|span1:// Goo
                // Bar|}
                {|hint2:$$enum E{|textspan2:
                {
                }|}|}
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("span1", "// Goo ...", autoCollapse: true),
            Region("textspan2", "hint2", CSharpStructureHelpers.Ellipsis, autoCollapse: false));
    }
 
    [Fact]
    public async Task TestEnumWithNestedComments()
    {
        var code = """
                {|hint1:$$enum E{|textspan1:
                {
                    {|span2:// Goo
                    // Bar|}
                }|}|}
                """;
 
        await VerifyBlockSpansAsync(code,
            Region("textspan1", "hint1", CSharpStructureHelpers.Ellipsis, autoCollapse: false),
            Region("span2", "// Goo ...", autoCollapse: true));
    }
}