src/LanguageServer/ProtocolUnitTests/DocumentChanges/DocumentChangesTests.WithFindAllReferences.cs - main - githubmirror/roslyn

src/LanguageServer/ProtocolUnitTests/DocumentChanges/DocumentChangesTests.WithFindAllReferences.cs
90 строк4 KB
Cyrus Najmabadi
Use raw strings in tests
09 июл 2025, 08:52
09 июл 2025, 08:52f265dce
// 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.Tasks;
using Microsoft.CodeAnalysis.LanguageServer.UnitTests.References;
using Xunit;

namespace Microsoft.CodeAnalysis.LanguageServer.UnitTests.DocumentChanges;

public sealed partial class DocumentChangesTests
{
    [Theory, CombinatorialData]
    public async Task FindReferencesInChangingDocument(bool mutatingLspWorkspace)
    {
        var (testLspServer, locationTyped, _) = await GetTestLspServerAndLocationAsync("""
            class A
            {
                public int {|type:|}someInt = 1;
                void M()
                {
                }
            }
            class B
            {
                void M2()
                {
                }
            }
            """, mutatingLspWorkspace);

        await using (testLspServer)
        {
            Assert.Empty(testLspServer.GetTrackedTexts());

            await DidOpen(testLspServer, locationTyped.DocumentUri);

            var originalDocument = testLspServer.GetCurrentSolution().Projects.Single().Documents.Single();

            var findResults = await FindAllReferencesHandlerTests.RunFindAllReferencesAsync(testLspServer, locationTyped);
            Assert.Single(findResults);

            Assert.Equal("A", findResults[0].ContainingType);

            // Declare a local inside A.M()
            await DidChange(testLspServer, locationTyped.DocumentUri, (5, 0, "var i = someInt + 1;\r\n"));

            findResults = await FindAllReferencesHandlerTests.RunFindAllReferencesAsync(testLspServer, locationTyped);
            Assert.Equal(2, findResults.Length);

            Assert.Equal("A", findResults[0].ContainingType);
            Assert.Equal("M", findResults[1].ContainingMember);

            // Declare a field in B
            await DidChange(testLspServer, locationTyped.DocumentUri, (10, 0, "int someInt = A.someInt + 1;\r\n"));

            findResults = await FindAllReferencesHandlerTests.RunFindAllReferencesAsync(testLspServer, locationTyped);
            Assert.Equal(3, findResults.Length);

            Assert.Equal("A", findResults[0].ContainingType);
            Assert.Equal("B", findResults[2].ContainingType);
            Assert.Equal("M", findResults[1].ContainingMember);

            // Declare a local inside B.M2()
            await DidChange(testLspServer, locationTyped.DocumentUri, (13, 0, "var j = someInt + A.someInt;\r\n"));

            findResults = await FindAllReferencesHandlerTests.RunFindAllReferencesAsync(testLspServer, locationTyped);
            Assert.Equal(4, findResults.Length);

            Assert.Equal("A", findResults[0].ContainingType);
            Assert.Equal("B", findResults[2].ContainingType);
            Assert.Equal("M", findResults[1].ContainingMember);
            Assert.Equal("M2", findResults[3].ContainingMember);

            // NOTE: This is not a real world scenario.
            //
            // By closing the document we revert back to the original state, but in the real world the original
            // state will have been updated by back channels (text buffer sync, file changed on disk, etc.) This
            // is validating that the above didn't succeed by any means except the FAR handler being passed the
            // updated document, so if we regress and get lucky, we still know about it.
            await DidClose(testLspServer, locationTyped.DocumentUri);

            findResults = await FindAllReferencesHandlerTests.RunFindAllReferencesAsync(testLspServer, locationTyped);
            Assert.Single(findResults);

            Assert.Equal("A", findResults[0].ContainingType);
        }
    }
}