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ThirdPartyAnalyzerFormatterTests.cs
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ThirdPartyAnalyzerFormatterTests.cs
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// Copyright (c) Microsoft. All Rights Reserved. Licensed under the MIT license. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Diagnostics;
using Microsoft.CodeAnalysis.Tools.Analyzers;
using Microsoft.CodeAnalysis.Tools.Formatters;
using Microsoft.CodeAnalysis.Tools.Tests.Formatters;
using Microsoft.CodeAnalysis.Tools.Tests.Utilities;
using Microsoft.CodeAnalysis.Tools.Workspaces;
using Xunit;
using Xunit.Abstractions;
namespace Microsoft.CodeAnalysis.Tools.Tests.Analyzers
{
public class ThirdPartyAnalyzerFormatterTests : CSharpFormatterTests, IAsyncLifetime
{
private static readonly string s_analyzerProjectFilePath = Path.Combine("for_analyzer_formatter", "analyzer_project", "analyzer_project.csproj");
private protected override ICodeFormatter Formatter => AnalyzerFormatter.ThirdPartyFormatter;
private Project _analyzerReferencesProject;
public ThirdPartyAnalyzerFormatterTests(ITestOutputHelper output)
{
TestOutputHelper = output;
}
public async Task InitializeAsync()
{
var logger = new TestLogger();
try
{
// Restore the Analyzer packages that have been added to `for_analyzer_formatter/analyzer_project/analyzer_project.csproj`
var exitCode = await NuGetHelper.PerformRestore(s_analyzerProjectFilePath, TestOutputHelper);
Assert.Equal(0, exitCode);
// Load the analyzer_project into a MSBuildWorkspace.
var workspacePath = Path.Combine(TestProjectsPathHelper.GetProjectsDirectory(), s_analyzerProjectFilePath);
MSBuildRegistrar.RegisterInstance(logger);
var analyzerWorkspace = await MSBuildWorkspaceLoader.LockedLoadAsync(workspacePath, WorkspaceType.Project, createBinaryLog: false, logWorkspaceWarnings: true, logger, CancellationToken.None);
// From this project we can get valid AnalyzerReferences to add to our test project.
_analyzerReferencesProject = analyzerWorkspace.CurrentSolution.Projects.Single();
}
catch
{
TestOutputHelper.WriteLine(logger.GetLog());
throw;
}
}
public Task DisposeAsync()
{
_analyzerReferencesProject = null;
return Task.CompletedTask;
}
private IEnumerable<AnalyzerReference> GetAnalyzerReferences(string prefix)
=> _analyzerReferencesProject.AnalyzerReferences.Where(reference => reference.Display.StartsWith(prefix));
[Fact]
public async Task TestStyleCopBlankLineFixer_RemovesUnnecessaryBlankLines()
{
var analyzerReferences = GetAnalyzerReferences("StyleCop");
var testCode = @"
class C
{
void M()
{
object obj = new object();
int count = 5;
}
}
";
var expectedCode = @"
class C
{
void M()
{
object obj = new object();
int count = 5;
}
}
";
var editorConfig = new Dictionary<string, string>()
{
// Turn off all diagnostics analyzers
["dotnet_analyzer_diagnostic.severity"] = "none",
// Two or more consecutive blank lines: Remove down to one blank line. SA1507
["dotnet_diagnostic.SA1507.severity"] = "error",
// Blank line immediately before or after a { line: remove it. SA1505, SA1509
["dotnet_diagnostic.SA1505.severity"] = "error",
["dotnet_diagnostic.SA1509.severity"] = "error",
// Blank line immediately before a } line: remove it. SA1508
["dotnet_diagnostic.SA1508.severity"] = "error",
};
await AssertCodeChangedAsync(testCode, expectedCode, editorConfig, fixCategory: FixCategory.Analyzers, analyzerReferences: analyzerReferences);
}
}
}