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Add performance tests
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‎src/PerformanceTests/Tests/Enabled/CSharp_CA1856.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.
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#pragma warning disable VSTHRD200 // Use "Async" suffix for async methods
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using System;
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using System.Collections.Generic;
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using System.Collections.Immutable;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using BenchmarkDotNet.Attributes;
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using Microsoft.CodeAnalysis.Diagnostics;
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using Microsoft.NetCore.CSharp.Analyzers.Performance;
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using PerformanceTests.Utilities;
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using PerfUtilities;
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namespace CSharpPerformanceTests.Enabled
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{
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public class CSharp_CA1856
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{
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[IterationSetup]
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public static void CreateEnvironmentCA1856()
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{
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var sources = new List<(string name, string content)>();
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string attributeSource = @"#nullable enable
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namespace System.Diagnostics.CodeAnalysis
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{
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[AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false, Inherited = false)]
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public sealed class ConstantExpectedAttribute : Attribute
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{
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public object? Min { get; set; }
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public object? Max { get; set; }
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}
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}";
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sources.Add(("attributeSource", attributeSource));
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for (var i = 0; i < Constants.Number_Of_Code_Files; i++)
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{
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var name = "TypeName" + i;
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sources.Add((name, @$"
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using System;
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using System.Diagnostics.CodeAnalysis;
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class {name}
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{{
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public void Test([ConstantExpected(Min = 30, Max = 15)] int val) // diagnostic x2
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{{
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}}
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public void Test2([ConstantExpected(Min = 0, Max = 15)] string val) // diagnostic x2
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{{
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}}
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public void Test3<T>([ConstantExpected(Min = 0, Max = 15)] T val) // diagnostic
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{{
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}}
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public void Test4([ConstantExpected(Min = 0, Max = int.MaxValue)] byte val) // diagnostic
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{{
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}}
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}}
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"));
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}
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var compilation = CSharpCompilationHelper.CreateAsync(sources.ToArray()).GetAwaiter().GetResult();
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BaselineCompilationWithAnalyzers = compilation.WithAnalyzers(ImmutableArray.Create<DiagnosticAnalyzer>(new EmptyAnalyzer()));
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CompilationWithAnalyzers = compilation.WithAnalyzers(ImmutableArray.Create<DiagnosticAnalyzer>(new CSharpConstantExpectedAnalyzer()));
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}
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private static CompilationWithAnalyzers BaselineCompilationWithAnalyzers;
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private static CompilationWithAnalyzers CompilationWithAnalyzers;
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[Benchmark]
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public async Task CA1856_DiagnosticsProduced()
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{
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var analysisResult = await CompilationWithAnalyzers.GetAnalysisResultAsync(CancellationToken.None);
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var diagnostics = analysisResult.GetAllDiagnostics(analysisResult.Analyzers.First());
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if (analysisResult.Analyzers.Length != 1)
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{
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throw new InvalidOperationException($"Expected a single analyzer but found '{analysisResult.Analyzers.Length}'");
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}
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if (analysisResult.CompilationDiagnostics.Count != 0)
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{
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throw new InvalidOperationException($"Expected no compilation diagnostics but found '{analysisResult.CompilationDiagnostics.Count}'");
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}
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if (diagnostics.Length != 6 * Constants.Number_Of_Code_Files)
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{
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throw new InvalidOperationException($"Expected '{6 * Constants.Number_Of_Code_Files:N0}' analyzer diagnostics but found '{diagnostics.Length}'");
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}
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}
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[Benchmark(Baseline = true)]
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public async Task CA1856_Baseline()
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{
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var analysisResult = await BaselineCompilationWithAnalyzers.GetAnalysisResultAsync(CancellationToken.None);
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var diagnostics = analysisResult.GetAllDiagnostics(analysisResult.Analyzers.First());
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if (analysisResult.Analyzers.Length != 1)
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{
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throw new InvalidOperationException($"Expected a single analyzer but found '{analysisResult.Analyzers.Length}'");
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}
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if (analysisResult.CompilationDiagnostics.Count != 0)
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{
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throw new InvalidOperationException($"Expected no compilation diagnostics but found '{analysisResult.CompilationDiagnostics.Count}'");
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}
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if (diagnostics.Length != 0)
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{
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throw new InvalidOperationException($"Expected no analyzer diagnostics but found '{diagnostics.Length}'");
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}
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}
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}
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}

‎src/PerformanceTests/Tests/Enabled/CSharp_CA1857.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.
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#pragma warning disable VSTHRD200 // Use "Async" suffix for async methods
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using System;
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using System.Collections.Generic;
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using System.Collections.Immutable;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using BenchmarkDotNet.Attributes;
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using Microsoft.CodeAnalysis.Diagnostics;
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using Microsoft.NetCore.CSharp.Analyzers.Performance;
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using PerformanceTests.Utilities;
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using PerfUtilities;
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namespace CSharpPerformanceTests.Enabled
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{
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public class CSharp_CA1857
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{
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[IterationSetup]
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public static void CreateEnvironmentCA1856()
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{
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var sources = new List<(string name, string content)>();
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string attributeSource = @"#nullable enable
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namespace System.Diagnostics.CodeAnalysis
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{
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[AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false, Inherited = false)]
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public sealed class ConstantExpectedAttribute : Attribute
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{
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public object? Min { get; set; }
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public object? Max { get; set; }
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}
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}";
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sources.Add(("attributeSource", attributeSource));
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string testClass = @"
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using System;
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using System.Diagnostics.CodeAnalysis;
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#nullable enable
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namespace ConstantExpectedTest
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{
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public class Test
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{
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public void TestMethodString([ConstantExpected] string val) { }
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public void TestMethodInt32([ConstantExpected] int val) { }
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public void TestMethodInt32Ex([ConstantExpected(Min = 0, Max = 15)] int val) { }
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public void TestMethodByte([ConstantExpected] byte val) { }
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public void TestMethodByteEx([ConstantExpected(Min = 0, Max = 7)] byte val) { }
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}
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public interface ITestInterface
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{
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void TestMethodT<T>([ConstantExpected] T val) { }
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}
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public interface ITestInterface2<T>
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{
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void TestMethod([ConstantExpected] T val) { }
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}
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}
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";
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sources.Add(("testClass", testClass));
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for (var i = 0; i < Constants.Number_Of_Code_Files; i++)
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{
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var name = "TypeName" + i;
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sources.Add((name, @$"
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using System;
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using ConstantExpectedTest;
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class {name}
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{{
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private readonly Test _test;
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public {name}(Test test)
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{{
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_test = test;
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}}
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public void Test(int a)
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{{
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_test.TestMethodString(""Ok"");
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_test.TestMethodInt32(10);
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_test.TestMethodInt32Ex(10);
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_test.TestMethodInt32Ex(20); // diagnostic
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_test.TestMethodByte(10);
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_test.TestMethodByteEx(10); // diagnostic
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_test.TestMethodInt32Ex(a); // diagnostic
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}}
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private sealed class TestImpl : ITestInterface, ITestInterface2<int>
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{{
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public void TestMethodT<T>( T val) {{ }} // diagnostic
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public void TestMethod(int val) {{ }} // diagnostic
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}}
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}}
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"));
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}
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var compilation = CSharpCompilationHelper.CreateAsync(sources.ToArray()).GetAwaiter().GetResult();
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BaselineCompilationWithAnalyzers = compilation.WithAnalyzers(ImmutableArray.Create<DiagnosticAnalyzer>(new EmptyAnalyzer()));
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CompilationWithAnalyzers = compilation.WithAnalyzers(ImmutableArray.Create<DiagnosticAnalyzer>(new CSharpConstantExpectedAnalyzer()));
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}
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private static CompilationWithAnalyzers BaselineCompilationWithAnalyzers;
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private static CompilationWithAnalyzers CompilationWithAnalyzers;
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[Benchmark]
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public async Task CA1857_DiagnosticsProduced()
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{
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var analysisResult = await CompilationWithAnalyzers.GetAnalysisResultAsync(CancellationToken.None);
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var diagnostics = analysisResult.GetAllDiagnostics(analysisResult.Analyzers.First());
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if (analysisResult.Analyzers.Length != 1)
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{
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throw new InvalidOperationException($"Expected a single analyzer but found '{analysisResult.Analyzers.Length}'");
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}
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if (analysisResult.CompilationDiagnostics.Count != 0)
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{
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throw new InvalidOperationException($"Expected no compilation diagnostics but found '{analysisResult.CompilationDiagnostics.Count}'");
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}
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if (diagnostics.Length != 5 * Constants.Number_Of_Code_Files)
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{
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throw new InvalidOperationException($"Expected '{5 * Constants.Number_Of_Code_Files:N0}' analyzer diagnostics but found '{diagnostics.Length}'");
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}
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}
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[Benchmark(Baseline = true)]
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public async Task CA1857_Baseline()
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{
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var analysisResult = await BaselineCompilationWithAnalyzers.GetAnalysisResultAsync(CancellationToken.None);
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var diagnostics = analysisResult.GetAllDiagnostics(analysisResult.Analyzers.First());
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if (analysisResult.Analyzers.Length != 1)
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{
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throw new InvalidOperationException($"Expected a single analyzer but found '{analysisResult.Analyzers.Length}'");
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}
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if (analysisResult.CompilationDiagnostics.Count != 0)
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{
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throw new InvalidOperationException($"Expected no compilation diagnostics but found '{analysisResult.CompilationDiagnostics.Count}'");
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}
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if (diagnostics.Length != 0)
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{
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throw new InvalidOperationException($"Expected no analyzer diagnostics but found '{diagnostics.Length}'");
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}
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}
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}
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}

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