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Cohosting semantic tokens tests (#10619)
Part of #9519 and #10603 This was fairly straight forward too, though adding MVC files to the mix found a bug in our test data, which is kind of humorous. I decided not to copy all of the semantic tokens tests we have, but rather just create something reasonably all-encompassing. The core engine is shared so both sets of tests exercise it anyway.
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....VisualStudio.LanguageServices.Razor.Test/Cohost/CohostSemanticTokensRangeEndpointTest.cs
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| // Copyright (c) .NET Foundation. All rights reserved. | ||
| // Licensed under the MIT license. See License.txt in the project root for license information. | ||
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| using System.IO; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Threading.Tasks; | ||
| using Microsoft.AspNetCore.Razor.Language; | ||
| using Microsoft.AspNetCore.Razor.LanguageServer.Semantic; | ||
| using Microsoft.AspNetCore.Razor.PooledObjects; | ||
| using Microsoft.AspNetCore.Razor.Telemetry; | ||
| using Microsoft.CodeAnalysis.Razor.Settings; | ||
| using Microsoft.CodeAnalysis.Razor.Workspaces; | ||
| using Microsoft.CodeAnalysis.Remote.Razor; | ||
| using Microsoft.CodeAnalysis.Remote.Razor.SemanticTokens; | ||
| using Microsoft.CodeAnalysis.Text; | ||
| using Microsoft.VisualStudio.Razor.Settings; | ||
| using Microsoft.VisualStudio.Utilities; | ||
| using Roslyn.Test.Utilities; | ||
| using Xunit; | ||
| using Xunit.Abstractions; | ||
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|
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| namespace Microsoft.VisualStudio.Razor.LanguageClient.Cohost; | ||
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| public class CohostSemanticTokensRangeEndpointTest(ITestOutputHelper testOutputHelper) : CohostTestBase(testOutputHelper) | ||
| { | ||
| [Theory] | ||
| [CombinatorialData] | ||
| public async Task Razor(bool colorBackground, bool precise) | ||
| { | ||
| var input = """ | ||
| @page "/" | ||
| @using System | ||
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| <div>This is some HTML</div> | ||
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| <InputText Value="someValue" /> | ||
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| @* hello there *@ | ||
| <!-- how are you? --> | ||
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| @if (true) | ||
| { | ||
| <text>Html!</text> | ||
| } | ||
|
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| @code | ||
| { | ||
| // I am also good, thanks for asking | ||
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| /* | ||
| No problem. | ||
| */ | ||
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| private string someValue; | ||
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| public void M() | ||
| { | ||
| RenderFragment x = @<div>This is some HTML in a render fragment</div>; | ||
| } | ||
| } | ||
| """; | ||
|
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| await VerifySemanticTokensAsync(input, colorBackground, precise); | ||
| } | ||
|
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| [Theory] | ||
| [CombinatorialData] | ||
| public async Task Legacy(bool colorBackground, bool precise) | ||
| { | ||
| var input = """ | ||
| @page "/" | ||
| @using System | ||
|
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| <div>This is some HTML</div> | ||
|
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| <component type="typeof(Component)" render-mode="ServerPrerendered" /> | ||
|
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| @functions | ||
| { | ||
| public void M() | ||
| { | ||
| } | ||
| } | ||
|
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| @section MySection { | ||
| <div>Section content</div> | ||
| } | ||
| """; | ||
|
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| await VerifySemanticTokensAsync(input, colorBackground, precise, fileKind: FileKinds.Legacy); | ||
| } | ||
|
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| private async Task VerifySemanticTokensAsync(string input, bool colorBackground, bool precise, string? fileKind = null, [CallerMemberName] string? testName = null) | ||
| { | ||
| var document = CreateProjectAndRazorDocument(input, fileKind); | ||
| var sourceText = await document.GetTextAsync(DisposalToken); | ||
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| var legend = TestRazorSemanticTokensLegendService.Instance; | ||
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| // We need to manually initialize the OOP service so we can get semantic token info later | ||
| var legendService = OOPExportProvider.GetExportedValue<RemoteSemanticTokensLegendService>(); | ||
| legendService.SetLegend(legend.TokenTypes.All, legend.TokenModifiers.All); | ||
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| // Update the client initialization options to control the precise ranges option | ||
| UpdateClientInitializationOptions(c => c with { UsePreciseSemanticTokenRanges = precise }); | ||
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| var clientSettingsManager = new ClientSettingsManager([], null, null); | ||
| clientSettingsManager.Update(ClientAdvancedSettings.Default with { ColorBackground = colorBackground }); | ||
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| var endpoint = new CohostSemanticTokensRangeEndpoint(RemoteServiceInvoker, clientSettingsManager, legend, NoOpTelemetryReporter.Instance, LoggerFactory); | ||
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| var span = new LinePositionSpan(new(0, 0), new(sourceText.Lines.Count, 0)); | ||
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| var result = await endpoint.GetTestAccessor().HandleRequestAsync(document, span, DisposalToken); | ||
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| var actualFileContents = GetTestOutput(sourceText, result?.Data); | ||
|
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| if (colorBackground) | ||
| { | ||
| testName += "_with_background"; | ||
| } | ||
|
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| var baselineFileName = $@"TestFiles\SemanticTokens\{testName}.txt"; | ||
| if (GenerateBaselines.ShouldGenerate) | ||
| { | ||
| WriteBaselineFile(actualFileContents, baselineFileName); | ||
| } | ||
|
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| var expectedFileContents = GetBaselineFileContents(baselineFileName); | ||
| AssertEx.EqualOrDiff(expectedFileContents, actualFileContents); | ||
| } | ||
|
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| private string GetBaselineFileContents(string baselineFileName) | ||
| { | ||
| var semanticFile = TestFile.Create(baselineFileName, GetType().Assembly); | ||
| if (!semanticFile.Exists()) | ||
| { | ||
| return string.Empty; | ||
| } | ||
|
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| return semanticFile.ReadAllText(); | ||
| } | ||
|
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| private static void WriteBaselineFile(string fileContents, string baselineFileName) | ||
| { | ||
| var projectPath = TestProject.GetProjectDirectory(typeof(CohostSemanticTokensRangeEndpointTest), layer: TestProject.Layer.Tooling); | ||
| var baselineFileFullPath = Path.Combine(projectPath, baselineFileName); | ||
| File.WriteAllText(baselineFileFullPath, fileContents); | ||
| } | ||
|
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| private static string GetTestOutput(SourceText sourceText, int[]? data) | ||
| { | ||
| if (data == null) | ||
| { | ||
| return string.Empty; | ||
| } | ||
|
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| using var _ = StringBuilderPool.GetPooledObject(out var builder); | ||
| builder.AppendLine("Line Δ, Char Δ, Length, Type, Modifier(s), Text"); | ||
| var tokenTypes = TestRazorSemanticTokensLegendService.Instance.TokenTypes.All; | ||
| var prevLength = 0; | ||
| var lineIndex = 0; | ||
| var lineOffset = 0; | ||
| for (var i = 0; i < data.Length; i += 5) | ||
| { | ||
| var lineDelta = data[i]; | ||
| var charDelta = data[i + 1]; | ||
| var length = data[i + 2]; | ||
|
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| Assert.False(i != 0 && lineDelta == 0 && charDelta == 0, "line delta and character delta are both 0, which is invalid as we shouldn't be producing overlapping tokens"); | ||
| Assert.False(i != 0 && lineDelta == 0 && charDelta < prevLength, "Previous length is longer than char offset from previous start, meaning tokens will overlap"); | ||
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| if (lineDelta != 0) | ||
| { | ||
| lineOffset = 0; | ||
| } | ||
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| lineIndex += lineDelta; | ||
| lineOffset += charDelta; | ||
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| var type = tokenTypes[data[i + 3]]; | ||
| var modifier = GetTokenModifierString(data[i + 4]); | ||
| var text = sourceText.GetSubTextString(new TextSpan(sourceText.Lines[lineIndex].Start + lineOffset, length)); | ||
| builder.AppendLine($"{lineDelta} {charDelta} {length} {type} {modifier} [{text}]"); | ||
|
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| prevLength = length; | ||
| } | ||
|
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| return builder.ToString(); | ||
| } | ||
|
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| private static string GetTokenModifierString(int tokenModifiers) | ||
| { | ||
| var modifiers = TestRazorSemanticTokensLegendService.Instance.TokenModifiers.All; | ||
|
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| var modifiersBuilder = ArrayBuilder<string>.GetInstance(); | ||
| for (var i = 0; i < modifiers.Length; i++) | ||
| { | ||
| if ((tokenModifiers & (1 << i % 32)) != 0) | ||
| { | ||
| modifiersBuilder.Add(modifiers[i]); | ||
| } | ||
| } | ||
|
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| return $"[{string.Join(", ", modifiersBuilder.ToArrayAndFree())}]"; | ||
| } | ||
| } |
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