public async Task VerifyGetFixesWhenChangingToTaskAndUsingDoesNotExist()
{
var code =
@"using Csla;
public class A : BusinessBase<A>
{
public async string DataPortal_Fetch() { }
}";
var document = TestHelpers.Create(code);
var tree = await document.GetSyntaxTreeAsync();
var diagnostics = await TestHelpers.GetDiagnosticsAsync(code, new FindOperationsWithIncorrectReturnTypesAnalyzer());
var sourceSpan = diagnostics[0].Location.SourceSpan;
var actions = new List <CodeAction>();
var codeActionRegistration = new Action <CodeAction, ImmutableArray <Diagnostic> >(
(a, _) => { actions.Add(a); });
var fix = new FindOperationsWithIncorrectReturnTypeResolveCorrectTypeCodeFix();
var codeFixContext = new CodeFixContext(document, diagnostics[0],
codeActionRegistration, new CancellationToken(false));
await fix.RegisterCodeFixesAsync(codeFixContext);
Assert.AreEqual(1, actions.Count, nameof(actions.Count));
await TestHelpers.VerifyActionAsync(actions,
FindOperationsWithIncorrectReturnTypeResolveCorrectTypeCodeFixConstants.ChangeReturnTypeToTaskDescription, document,
tree, new[] { "using System.Threading.Tasks;", "Task" });
}
public void VerifyGetFixableDiagnosticIds()
{
var fix = new FindOperationsWithIncorrectReturnTypeResolveCorrectTypeCodeFix();
var ids = fix.FixableDiagnosticIds.ToList();
Assert.AreEqual(1, ids.Count, nameof(ids.Count));
Assert.AreEqual(ids[0], Constants.AnalyzerIdentifiers.FindOperationsWithIncorrectReturnTypes,
nameof(Constants.AnalyzerIdentifiers.FindOperationsWithIncorrectReturnTypes));
}
public async Task VerifyGetFixesWhenChangingToTaskAndUsingDoesNotExist()
{
var code =
@"using Csla;
public class A : BusinessBase<A>
{
[Fetch]
public async string FetchAsync() { }
}";
var document = TestHelpers.Create(code);
var tree = await document.GetSyntaxTreeAsync();
var diagnostics = await TestHelpers.GetDiagnosticsAsync(code, new FindOperationsWithIncorrectReturnTypesAnalyzer());
var sourceSpan = diagnostics[0].Location.SourceSpan;
var actions = new List <CodeAction>();
var codeActionRegistration = new Action <CodeAction, ImmutableArray <Diagnostic> >(
(a, _) => { actions.Add(a); });
var fix = new FindOperationsWithIncorrectReturnTypeResolveCorrectTypeCodeFix();
var codeFixContext = new CodeFixContext(document, diagnostics[0],
codeActionRegistration, new CancellationToken(false));
await fix.RegisterCodeFixesAsync(codeFixContext);
Assert.AreEqual(1, actions.Count, nameof(actions.Count));
await TestHelpers.VerifyChangesAsync(actions,
FindOperationsWithIncorrectReturnTypeResolveCorrectTypeCodeFixConstants.ChangeReturnTypeToTaskDescription, document,
(model, newRoot) =>
{
Assert.IsTrue(newRoot.DescendantNodes(_ => true).OfType <UsingDirectiveSyntax>().Any(
_ => _.Name.GetText().ToString() == "System.Threading.Tasks"));
var classNode = newRoot.DescendantNodes(_ => true).OfType <ClassDeclarationSyntax>().Single();
var classSymbol = model.GetDeclaredSymbol(classNode) as INamedTypeSymbol;
var methodSymbol = classSymbol.GetMembers().OfType <IMethodSymbol>().Single(_ => _.Name == "FetchAsync");
Assert.AreEqual("Task", methodSymbol.ReturnType.Name);
});
}
