// 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.Collections.Immutable;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.PooledObjects;
using Microsoft.CodeAnalysis.Structure;
 
namespace Microsoft.CodeAnalysis.Editor.UnitTests.Structure;
 
public abstract class AbstractSyntaxTriviaStructureProviderTests : AbstractSyntaxStructureProviderTests
{
    internal abstract AbstractSyntaxStructureProvider CreateProvider();
 
    internal sealed override async Task<ImmutableArray<BlockSpan>> GetBlockSpansWorkerAsync(Document document, BlockStructureOptions options, int position)
    {
        var root = await document.GetSyntaxRootAsync();
        var trivia = root.FindTrivia(position, findInsideTrivia: true);
 
        var outliner = CreateProvider();
        using var _ = ArrayBuilder<BlockSpan>.GetInstance(out var actualRegions);
        outliner.CollectBlockSpans(trivia, actualRegions, options, CancellationToken.None);
 
        // TODO: Determine why we get null outlining spans.
        return actualRegions.ToImmutableAndClear();
    }
}