﻿// 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.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 InterpolatedStringExpressionStructureTests : AbstractCSharpSyntaxNodeStructureTests<InterpolatedStringExpressionSyntax>
    {
        internal override AbstractSyntaxStructureProvider CreateProvider()
            => new InterpolatedStringExpressionStructureProvider();

        [Fact]
        public async Task TestMultiLineStringLiteral()
        {
            await VerifyBlockSpansAsync(
@"
class C
{
    void M()
    {
        var v =
{|hint:{|textspan:$$$@""
{123}
""|}|};
    }
}",
                Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: true));
        }

        [Fact]
        public async Task TestMissingOnIncompleteStringLiteral()
        {
            await VerifyNoBlockSpansAsync(
@"
class C
{
    void M()
    {
        var v = $$$"";
    }
}");
        }
    }
}
