// 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.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.BraceMatching;
using Microsoft.CodeAnalysis.Test.Utilities;
using Roslyn.Test.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.UnitTests.BraceMatching
{
    [UseExportProvider]
    public abstract class AbstractBraceMatcherTests
    {
        protected abstract EditorTestWorkspace CreateWorkspaceFromCode(string code, ParseOptions options);
 
        protected async Task TestAsync(string markup, string expectedCode, ParseOptions options = null)
        {
            using var workspace = CreateWorkspaceFromCode(markup, options);
            var position = workspace.Documents.Single().CursorPosition.Value;
            var document = workspace.CurrentSolution.GetDocument(workspace.Documents.First().Id);
            var braceMatcher = workspace.GetService<IBraceMatchingService>();
            var braceMatchingOptions = BraceMatchingOptions.Default;
 
            var foundSpan = await braceMatcher.FindMatchingSpanAsync(document, position, braceMatchingOptions, CancellationToken.None);
            MarkupTestFile.GetSpans(expectedCode, out var parsedExpectedCode, out var expectedSpans);
 
            if (expectedSpans.Any())
            {
                Assert.Equal(expectedSpans.Single(), foundSpan.Value);
            }
            else
            {
                Assert.False(foundSpan.HasValue);
            }
        }
    }
}