File: SpellCheck\AbstractSpellCheckFixerProviderTests.cs
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Project: src\src\EditorFeatures\TestUtilities\Microsoft.CodeAnalysis.EditorFeatures.Test.Utilities.csproj (Microsoft.CodeAnalysis.EditorFeatures.Test.Utilities)
// 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.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Editor.Shared.Utilities;
using Microsoft.CodeAnalysis.SpellCheck;
using Microsoft.CodeAnalysis.Test.Utilities;
using Microsoft.CodeAnalysis.Text.Shared.Extensions;
using Microsoft.VisualStudio.Text.SpellChecker;
using Roslyn.Test.Utilities;
using Roslyn.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.UnitTests.SpellCheck
{
    public abstract class AbstractSpellCheckFixerProviderTests
    {
        protected abstract EditorTestWorkspace CreateWorkspace(string content);
 
#pragma warning disable CS0612 // Type or member is obsolete
#pragma warning disable CS0618 // Type or member is obsolete
 
        protected Task TestSuccessAsync(string content, string expected)
            => TestAsync(content, expected, expectFailure: false);
 
        protected Task TestFailureAsync(string content, string expected)
            => TestAsync(content, expected, expectFailure: true);
 
        private async Task TestAsync(string content, string expected, bool expectFailure)
        {
            using var workspace = CreateWorkspace(content);
 
            var threadingContext = workspace.ExportProvider.GetExportedValue<IThreadingContext>();
 
            var document = workspace.Documents.Single();
            var service = (RoslynSpellCheckFixerProvider)workspace.ExportProvider.GetExportedValue<ISpellCheckFixerProvider>();
 
            var buffer = document.GetTextBuffer();
            var (replacement, span) = document.AnnotatedSpans.Single();
            var result = await service.GetTestAccessor().TryRenameAsync(buffer.CurrentSnapshot.GetSpan(span.Single().ToSpan()), replacement, CancellationToken.None);
 
            if (expectFailure)
            {
                Assert.NotNull(result);
            }
            else
            {
                Assert.Null(result);
            }
 
            AssertEx.Equal(expected, buffer.CurrentSnapshot.GetText());
        }
#pragma warning restore CS0612 // Type or member is obsolete
#pragma warning restore CS0618 // Type or member is obsolete
    }
}