EvaluateOperationAttributeUsageAnalyzerTests.cs

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using Microsoft.CodeAnalysis;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Linq;
using System.Threading.Tasks;
 
namespace Csla.Analyzers.Tests
{
  [TestClass]
  public sealed class EvaluateOperationAttributeUsageAnalyzerTests
  {
    [TestMethod]
    public void VerifySupportedDiagnostics()
    {
      var analyzer = new EvaluateOperationAttributeUsageAnalyzer();
      var diagnostics = analyzer.SupportedDiagnostics;
      Assert.AreEqual(1, diagnostics.Length);
 
      var diagnostic = diagnostics.Single(_ => _.Id == Constants.AnalyzerIdentifiers.IsOperationAttributeUsageCorrect);
      Assert.AreEqual(EvaluateOperationAttributeUsageAnalyzerConstants.Title, diagnostic.Title.ToString(),
        nameof(DiagnosticDescriptor.Title));
      Assert.AreEqual(EvaluateOperationAttributeUsageAnalyzerConstants.Message, diagnostic.MessageFormat.ToString(),
        nameof(DiagnosticDescriptor.MessageFormat));
      Assert.AreEqual(Constants.Categories.Usage, diagnostic.Category,
        nameof(DiagnosticDescriptor.Category));
      Assert.AreEqual(DiagnosticSeverity.Error, diagnostic.DefaultSeverity,
        nameof(DiagnosticDescriptor.DefaultSeverity));
      Assert.AreEqual(HelpUrlBuilder.Build(Constants.AnalyzerIdentifiers.IsOperationAttributeUsageCorrect, nameof(EvaluateOperationAttributeUsageAnalyzer)),
        diagnostic.HelpLinkUri,
        nameof(DiagnosticDescriptor.HelpLinkUri));
    }
 
    [TestMethod]
    public async Task AnalyzeWhenTypeIsNotStereotype()
    {
      var code =
@"using Csla;
 
public class A
{
  [Fetch]
  private void Fetch() { }
}";
      await TestHelpers.RunAnalysisAsync<EvaluateOperationAttributeUsageAnalyzer>(
        code, new[] { Constants.AnalyzerIdentifiers.IsOperationAttributeUsageCorrect });
    }
 
    [TestMethod]
    public async Task AnalyzeWhenTypeIsStereotypeAndOperationIsStatic()
    {
      var code =
@"using Csla;
using System;
 
[Serializable]
public class A
  : BusinessBase<A>
{
  [Fetch]
  private static void Fetch() { }
}";
      await TestHelpers.RunAnalysisAsync<EvaluateOperationAttributeUsageAnalyzer>(
        code, new[] { Constants.AnalyzerIdentifiers.IsOperationAttributeUsageCorrect });
    }
 
    [TestMethod]
    public async Task AnalyzeWhenTypeIsStereotypeAndOperationIsInstance()
    {
      var code =
@"using Csla;
using System;
 
[Serializable]
public class A
  : BusinessBase<A>
{
  [Fetch]
  private void Fetch() { }
}";
      await TestHelpers.RunAnalysisAsync<EvaluateOperationAttributeUsageAnalyzer>(
        code, Array.Empty<string>());
    }
  }
}