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C#10ify
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Tyrrrz
@@ -11,158 +11,157 @@ using Microsoft.CodeAnalysis.CSharp;
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using Microsoft.CodeAnalysis.Diagnostics;
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using Microsoft.CodeAnalysis.Text;
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namespace CliFx.Analyzers.Tests.Utils
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{
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internal class AnalyzerAssertions : ReferenceTypeAssertions<DiagnosticAnalyzer, AnalyzerAssertions>
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{
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protected override string Identifier { get; } = "analyzer";
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namespace CliFx.Analyzers.Tests.Utils;
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public AnalyzerAssertions(DiagnosticAnalyzer analyzer)
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: base(analyzer)
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internal class AnalyzerAssertions : ReferenceTypeAssertions<DiagnosticAnalyzer, AnalyzerAssertions>
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{
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protected override string Identifier { get; } = "analyzer";
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public AnalyzerAssertions(DiagnosticAnalyzer analyzer)
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: base(analyzer)
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{
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}
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private Compilation Compile(string sourceCode)
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{
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// Get default system namespaces
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var defaultSystemNamespaces = new[]
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{
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"System",
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"System.Collections.Generic",
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"System.Threading.Tasks"
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};
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// Get default CliFx namespaces
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var defaultCliFxNamespaces = typeof(ICommand)
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.Assembly
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.GetTypes()
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.Where(t => t.IsPublic)
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.Select(t => t.Namespace)
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.Distinct()
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.ToArray();
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// Append default imports to the source code
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var sourceCodeWithUsings =
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string.Join(Environment.NewLine, defaultSystemNamespaces.Select(n => $"using {n};")) +
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string.Join(Environment.NewLine, defaultCliFxNamespaces.Select(n => $"using {n};")) +
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Environment.NewLine +
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sourceCode;
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// Parse the source code
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var ast = SyntaxFactory.ParseSyntaxTree(
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SourceText.From(sourceCodeWithUsings),
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CSharpParseOptions.Default
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);
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// Compile the code to IL
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var compilation = CSharpCompilation.Create(
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"CliFxTests_DynamicAssembly_" + Guid.NewGuid(),
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new[] {ast},
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ReferenceAssemblies.Net50
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.Append(MetadataReference.CreateFromFile(typeof(ICommand).Assembly.Location)),
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// DLL to avoid having to define the Main() method
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new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary)
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);
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var compilationErrors = compilation
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.GetDiagnostics()
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.Where(d => d.Severity >= DiagnosticSeverity.Error)
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.ToArray();
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if (compilationErrors.Any())
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{
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throw new InvalidOperationException(
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"Failed to compile code." +
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Environment.NewLine +
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string.Join(Environment.NewLine, compilationErrors.Select(e => e.ToString()))
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);
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}
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private Compilation Compile(string sourceCode)
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return compilation;
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}
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private IReadOnlyList<Diagnostic> GetProducedDiagnostics(string sourceCode)
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{
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var analyzers = ImmutableArray.Create(Subject);
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var compilation = Compile(sourceCode);
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return compilation
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.WithAnalyzers(analyzers)
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.GetAnalyzerDiagnosticsAsync(analyzers, default)
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.GetAwaiter()
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.GetResult();
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}
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public void ProduceDiagnostics(string sourceCode)
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{
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var expectedDiagnostics = Subject.SupportedDiagnostics;
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var producedDiagnostics = GetProducedDiagnostics(sourceCode);
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var expectedDiagnosticIds = expectedDiagnostics.Select(d => d.Id).Distinct().ToArray();
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var producedDiagnosticIds = producedDiagnostics.Select(d => d.Id).Distinct().ToArray();
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var result =
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expectedDiagnosticIds.Intersect(producedDiagnosticIds).Count() ==
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expectedDiagnosticIds.Length;
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Execute.Assertion.ForCondition(result).FailWith(() =>
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{
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// Get default system namespaces
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var defaultSystemNamespaces = new[]
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var buffer = new StringBuilder();
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buffer.AppendLine("Expected and produced diagnostics do not match.");
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buffer.AppendLine();
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buffer.AppendLine("Expected diagnostics:");
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foreach (var expectedDiagnostic in expectedDiagnostics)
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{
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"System",
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"System.Collections.Generic",
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"System.Threading.Tasks"
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};
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// Get default CliFx namespaces
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var defaultCliFxNamespaces = typeof(ICommand)
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.Assembly
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.GetTypes()
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.Where(t => t.IsPublic)
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.Select(t => t.Namespace)
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.Distinct()
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.ToArray();
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// Append default imports to the source code
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var sourceCodeWithUsings =
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string.Join(Environment.NewLine, defaultSystemNamespaces.Select(n => $"using {n};")) +
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string.Join(Environment.NewLine, defaultCliFxNamespaces.Select(n => $"using {n};")) +
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Environment.NewLine +
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sourceCode;
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// Parse the source code
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var ast = SyntaxFactory.ParseSyntaxTree(
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SourceText.From(sourceCodeWithUsings),
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CSharpParseOptions.Default
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);
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// Compile the code to IL
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var compilation = CSharpCompilation.Create(
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"CliFxTests_DynamicAssembly_" + Guid.NewGuid(),
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new[] {ast},
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ReferenceAssemblies.Net50
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.Append(MetadataReference.CreateFromFile(typeof(ICommand).Assembly.Location)),
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// DLL to avoid having to define the Main() method
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new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary)
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);
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var compilationErrors = compilation
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.GetDiagnostics()
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.Where(d => d.Severity >= DiagnosticSeverity.Error)
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.ToArray();
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if (compilationErrors.Any())
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{
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throw new InvalidOperationException(
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"Failed to compile code." +
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Environment.NewLine +
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string.Join(Environment.NewLine, compilationErrors.Select(e => e.ToString()))
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);
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buffer.Append(" - ");
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buffer.Append(expectedDiagnostic.Id);
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buffer.AppendLine();
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}
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return compilation;
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}
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buffer.AppendLine();
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private IReadOnlyList<Diagnostic> GetProducedDiagnostics(string sourceCode)
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{
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var analyzers = ImmutableArray.Create(Subject);
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var compilation = Compile(sourceCode);
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buffer.AppendLine("Produced diagnostics:");
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return compilation
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.WithAnalyzers(analyzers)
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.GetAnalyzerDiagnosticsAsync(analyzers, default)
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.GetAwaiter()
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.GetResult();
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}
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public void ProduceDiagnostics(string sourceCode)
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{
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var expectedDiagnostics = Subject.SupportedDiagnostics;
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var producedDiagnostics = GetProducedDiagnostics(sourceCode);
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var expectedDiagnosticIds = expectedDiagnostics.Select(d => d.Id).Distinct().ToArray();
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var producedDiagnosticIds = producedDiagnostics.Select(d => d.Id).Distinct().ToArray();
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var result =
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expectedDiagnosticIds.Intersect(producedDiagnosticIds).Count() ==
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expectedDiagnosticIds.Length;
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Execute.Assertion.ForCondition(result).FailWith(() =>
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foreach (var producedDiagnostic in producedDiagnostics)
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{
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var buffer = new StringBuilder();
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buffer.Append(" - ");
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buffer.Append(producedDiagnostic);
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}
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buffer.AppendLine("Expected and produced diagnostics do not match.");
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buffer.AppendLine();
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buffer.AppendLine("Expected diagnostics:");
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foreach (var expectedDiagnostic in expectedDiagnostics)
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{
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buffer.Append(" - ");
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buffer.Append(expectedDiagnostic.Id);
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buffer.AppendLine();
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}
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buffer.AppendLine();
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buffer.AppendLine("Produced diagnostics:");
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foreach (var producedDiagnostic in producedDiagnostics)
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{
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buffer.Append(" - ");
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buffer.Append(producedDiagnostic);
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}
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return new FailReason(buffer.ToString());
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});
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}
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public void NotProduceDiagnostics(string sourceCode)
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{
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var producedDiagnostics = GetProducedDiagnostics(sourceCode);
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var result = !producedDiagnostics.Any();
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Execute.Assertion.ForCondition(result).FailWith(() =>
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{
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var buffer = new StringBuilder();
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buffer.AppendLine("Expected no produced diagnostics.");
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buffer.AppendLine();
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buffer.AppendLine("Produced diagnostics:");
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foreach (var producedDiagnostic in producedDiagnostics)
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{
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buffer.Append(" - ");
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buffer.Append(producedDiagnostic);
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}
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return new FailReason(buffer.ToString());
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});
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}
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return new FailReason(buffer.ToString());
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});
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}
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internal static class AnalyzerAssertionsExtensions
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public void NotProduceDiagnostics(string sourceCode)
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{
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public static AnalyzerAssertions Should(this DiagnosticAnalyzer analyzer) => new(analyzer);
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var producedDiagnostics = GetProducedDiagnostics(sourceCode);
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var result = !producedDiagnostics.Any();
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Execute.Assertion.ForCondition(result).FailWith(() =>
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{
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var buffer = new StringBuilder();
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buffer.AppendLine("Expected no produced diagnostics.");
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buffer.AppendLine();
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buffer.AppendLine("Produced diagnostics:");
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foreach (var producedDiagnostic in producedDiagnostics)
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{
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buffer.Append(" - ");
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buffer.Append(producedDiagnostic);
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}
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return new FailReason(buffer.ToString());
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});
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}
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}
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internal static class AnalyzerAssertionsExtensions
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{
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public static AnalyzerAssertions Should(this DiagnosticAnalyzer analyzer) => new(analyzer);
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}
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