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// 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.Threading.Tasks;
using Microsoft.CodeAnalysis.Testing;
using Test.Utilities;
using Xunit;
using VerifyCS = Test.Utilities.CSharpCodeFixVerifier<
Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpReportDiagnosticAnalyzer,
Microsoft.CodeAnalysis.Testing.EmptyCodeFixProvider>;
using VerifyVB = Test.Utilities.VisualBasicCodeFixVerifier<
Microsoft.CodeAnalysis.VisualBasic.Analyzers.MetaAnalyzers.BasicReportDiagnosticAnalyzer,
Microsoft.CodeAnalysis.Testing.EmptyCodeFixProvider>;
namespace Microsoft.CodeAnalysis.Analyzers.UnitTests.MetaAnalyzers
{
public class InvalidReportDiagnosticRuleTests
{
[Fact]
public async Task CSharp_VerifyDiagnosticAsync()
{
DiagnosticResult[] expected =
[
GetCSharpExpectedDiagnostic(26, 9, unsupportedDescriptorName: "descriptor2"),
GetCSharpExpectedDiagnostic(29, 9, unsupportedDescriptorName: "descriptor2"),
GetCSharpExpectedDiagnostic(34, 9, unsupportedDescriptorName: "descriptor2"),
GetCSharpExpectedDiagnostic(37, 9, unsupportedDescriptorName: "descriptor2"),
GetCSharpExpectedDiagnostic(42, 9, unsupportedDescriptorName: "descriptor2"),
GetCSharpExpectedDiagnostic(45, 9, unsupportedDescriptorName: "descriptor2")
];
await VerifyCS.VerifyAnalyzerAsync("""
using System;
using System.Collections.Immutable;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Diagnostics;
[DiagnosticAnalyzer(LanguageNames.CSharp)]
class MyAnalyzer : DiagnosticAnalyzer
{
private static readonly DiagnosticDescriptor descriptor1 = new DiagnosticDescriptor("MyDiagnosticId1", null, null, null, DiagnosticSeverity.Warning, false);
private static readonly DiagnosticDescriptor descriptor2 = new DiagnosticDescriptor("MyDiagnosticId2", null, null, null, DiagnosticSeverity.Warning, false);
public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
{
get
{
return ImmutableArray.Create(descriptor1);
}
}
public override void Initialize(AnalysisContext context)
{
}
private static void AnalyzeSymbol(SymbolAnalysisContext context)
{
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None));
var diag = Diagnostic.Create(descriptor2, Location.None);
context.ReportDiagnostic(diag);
}
private static void AnalyzeSyntax(SyntaxNodeAnalysisContext context)
{
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None));
Diagnostic diag = Diagnostic.Create(descriptor2, Location.None), diag2 = Diagnostic.Create(descriptor2, Location.None);
context.ReportDiagnostic(diag);
}
private static void AnalyzeOperation(OperationAnalysisContext context)
{
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None));
var diag = Diagnostic.Create(descriptor2, Location.None);
context.ReportDiagnostic(diag);
}
}
""", expected);
}
[Fact, WorkItem(1689, "https://github.com/dotnet/roslyn-analyzers/issues/1689")]
public async Task CSharp_VerifyDiagnostic_PropertyInitializerAsync()
{
DiagnosticResult[] expected =
[
GetCSharpExpectedDiagnostic(20, 9, unsupportedDescriptorName: "descriptor2"),
GetCSharpExpectedDiagnostic(23, 9, unsupportedDescriptorName: "descriptor2")
];
await VerifyCS.VerifyAnalyzerAsync("""
using System;
using System.Collections.Immutable;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Diagnostics;
[DiagnosticAnalyzer(LanguageNames.CSharp)]
class MyAnalyzer : DiagnosticAnalyzer
{
private static readonly DiagnosticDescriptor descriptor1 = new DiagnosticDescriptor("MyDiagnosticId1", null, null, null, DiagnosticSeverity.Warning, false);
private static readonly DiagnosticDescriptor descriptor2 = new DiagnosticDescriptor("MyDiagnosticId2", null, null, null, DiagnosticSeverity.Warning, false);
public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics { get; } = ImmutableArray.Create(descriptor1);
public override void Initialize(AnalysisContext context)
{
}
private static void AnalyzeSymbol(SymbolAnalysisContext context)
{
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None));
var diag = Diagnostic.Create(descriptor2, Location.None);
context.ReportDiagnostic(diag);
}
}
""", expected);
}
[Fact]
public async Task VisualBasic_VerifyDiagnosticAsync()
{
DiagnosticResult[] expected =
[
GetBasicExpectedDiagnostic(23, 9, unsupportedDescriptorName: "descriptor2"),
GetBasicExpectedDiagnostic(26, 9, unsupportedDescriptorName: "descriptor2"),
GetBasicExpectedDiagnostic(30, 9, unsupportedDescriptorName: "descriptor2"),
GetBasicExpectedDiagnostic(33, 9, unsupportedDescriptorName: "descriptor2"),
GetBasicExpectedDiagnostic(37, 9, unsupportedDescriptorName: "descriptor2"),
GetBasicExpectedDiagnostic(40, 9, unsupportedDescriptorName: "descriptor2")
];
await VerifyVB.VerifyAnalyzerAsync("""
Imports System
Imports System.Collections.Immutable
Imports Microsoft.CodeAnalysis
Imports Microsoft.CodeAnalysis.Diagnostics
<DiagnosticAnalyzer(LanguageNames.CSharp)>
Class MyAnalyzer
Inherits DiagnosticAnalyzer
Private Shared ReadOnly descriptor1 As DiagnosticDescriptor = New DiagnosticDescriptor("MyDiagnosticId1", Nothing, Nothing, Nothing, DiagnosticSeverity.Warning, False)
Private Shared ReadOnly descriptor2 As DiagnosticDescriptor = New DiagnosticDescriptor("MyDiagnosticId2", Nothing, Nothing, Nothing, DiagnosticSeverity.Warning, False)
Public Overrides ReadOnly Property SupportedDiagnostics() As ImmutableArray(Of DiagnosticDescriptor)
Get
Return ImmutableArray.Create(descriptor1)
End Get
End Property
Public Overrides Sub Initialize(context As AnalysisContext)
End Sub
Private Shared Sub AnalyzeSymbol(context As SymbolAnalysisContext)
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None))
Dim diag = Diagnostic.Create(descriptor2, Location.None)
context.ReportDiagnostic(diag)
End Sub
Private Shared Sub AnalyzeSyntax(context As SyntaxNodeAnalysisContext)
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None))
Dim diag = Diagnostic.Create(descriptor2, Location.None), diag2 = Diagnostic.Create(descriptor2, Location.None)
context.ReportDiagnostic(diag)
End Sub
Private Shared Sub AnalyzeOperation(context As OperationAnalysisContext)
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None))
Dim diag = Diagnostic.Create(descriptor2, Location.None)
context.ReportDiagnostic(diag)
End Sub
End Class
""", expected);
}
[Fact]
public Task CSharp_NoDiagnosticCasesAsync()
=> VerifyCS.VerifyAnalyzerAsync("""
using System;
using System.Collections.Immutable;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Diagnostics;
[DiagnosticAnalyzer(LanguageNames.CSharp)]
class MyAnalyzer : DiagnosticAnalyzer
{
private static readonly DiagnosticDescriptor descriptor1 = new DiagnosticDescriptor("MyDiagnosticId1", null, null, null, DiagnosticSeverity.Warning, false);
private static readonly DiagnosticDescriptor descriptor2 = new DiagnosticDescriptor("MyDiagnosticId2", null, null, null, DiagnosticSeverity.Warning, false);
public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
{
get
{
return ImmutableArray.Create(descriptor1);
}
}
public override void Initialize(AnalysisContext context)
{
}
private static void AnalyzeSymbol(SymbolAnalysisContext context)
{
// Overload resolution failures
context.{|CS1501:ReportDiagnostic|}(Diagnostic.Create(descriptor2, Location.None), null);
context.ReportDiagnostic(Diagnostic.{|CS0121:Create|}(descriptor2, Location.None, null));
context.ReportDiagnostic({|CS0841:diag|});
// Needs flow analysis
var diag = Diagnostic.Create(descriptor2, Location.None);
var diag2 = diag;
context.ReportDiagnostic(diag2);
}
}
""");
[Fact]
public Task VisualBasic_NoDiagnosticCasesAsync()
=> VerifyVB.VerifyAnalyzerAsync("""
Imports System
Imports System.Collections.Generic
Imports System.Collections.Immutable
Imports Microsoft.CodeAnalysis
Imports Microsoft.CodeAnalysis.Diagnostics
<DiagnosticAnalyzer(LanguageNames.CSharp)>
Class MyAnalyzer
Inherits DiagnosticAnalyzer
Private Shared ReadOnly descriptor1 As DiagnosticDescriptor = New DiagnosticDescriptor("MyDiagnosticId1", Nothing, Nothing, Nothing, DiagnosticSeverity.Warning, False)
Private Shared ReadOnly descriptor2 As DiagnosticDescriptor = New DiagnosticDescriptor("MyDiagnosticId2", Nothing, Nothing, Nothing, DiagnosticSeverity.Warning, False)
Public Overrides ReadOnly Property SupportedDiagnostics() As ImmutableArray(Of DiagnosticDescriptor)
Get
Return ImmutableArray.Create(descriptor1)
End Get
End Property
Public Overrides Sub Initialize(context As AnalysisContext)
End Sub
Private Shared Sub AnalyzeSymbol(context As SymbolAnalysisContext)
' Overload resolution failures
context.ReportDiagnostic(Diagnostic.Create(descriptor2, Location.None), {|BC30057:Nothing|})
context.ReportDiagnostic(Diagnostic.{|BC30521:Create|}(descriptor2, Location.None, Nothing))
context.ReportDiagnostic({|BC32000:diag|})
' Needs flow analysis
Dim diag = Diagnostic.Create(descriptor2, Location.None)
Dim diag2 = diag
context.ReportDiagnostic(diag2)
End Sub
End Class
""");
private static DiagnosticResult GetCSharpExpectedDiagnostic(int line, int column, string unsupportedDescriptorName) =>
#pragma warning disable RS0030 // Do not use banned APIs
VerifyCS.Diagnostic()
.WithLocation(line, column)
#pragma warning restore RS0030 // Do not use banned APIs
.WithArguments(unsupportedDescriptorName);
private static DiagnosticResult GetBasicExpectedDiagnostic(int line, int column, string unsupportedDescriptorName) =>
#pragma warning disable RS0030 // Do not use banned APIs
VerifyVB.Diagnostic()
.WithLocation(line, column)
#pragma warning restore RS0030 // Do not use banned APIs
.WithArguments(unsupportedDescriptorName);
}
}
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