public void CanCreateDiagnosticForAnalyzerLoadFailure(
AnalyzerLoadFailureEventArgs.FailureErrorCode errorCode,
[CombinatorialValues(LanguageNames.CSharp, LanguageNames.VisualBasic, null)] string?languageName)
{
// One potential value is None, which isn't actually a valid enum value to test.
if (errorCode == AnalyzerLoadFailureEventArgs.FailureErrorCode.None)
{
return;
}
var expectsTypeName = errorCode is AnalyzerLoadFailureEventArgs.FailureErrorCode.UnableToCreateAnalyzer or
AnalyzerLoadFailureEventArgs.FailureErrorCode.ReferencesFramework;
const string analyzerTypeName = "AnalyzerTypeName";
var eventArgs = new AnalyzerLoadFailureEventArgs(
errorCode,
message: errorCode.ToString(),
typeNameOpt: expectsTypeName ? analyzerTypeName : null);
// Ensure CreateAnalyzerLoadFailureDiagnostic doesn't fail when called. We don't assert much about the resulting
// diagnostic -- this is primarly to ensure we don't forget to update it if a new error code is added.
var diagnostic = DocumentAnalysisExecutor.CreateAnalyzerLoadFailureDiagnostic(eventArgs, "Analyzer.dll", null, languageName);
Assert.Equal(languageName, diagnostic.Language);
if (expectsTypeName)
{
Assert.Contains(analyzerTypeName, diagnostic.Message);
}
else
{
Assert.DoesNotContain(analyzerTypeName, diagnostic.Message);
}
}
private static AnalyzerLoadFailureEventArgs CreateAnalyzerFailedArgs(Exception e, string typeNameOpt = null)
{
// unwrap:
e = (e as TargetInvocationException) ?? e;
// remove all line breaks from the exception message
string message = e.Message.Replace("\r", "").Replace("\n", "");
AnalyzerLoadFailureEventArgs.FailureErrorCode errorCode = (typeNameOpt != null) ?
AnalyzerLoadFailureEventArgs.FailureErrorCode.UnableToCreateAnalyzer :
AnalyzerLoadFailureEventArgs.FailureErrorCode.UnableToLoadAnalyzer;
return(new AnalyzerLoadFailureEventArgs(errorCode, message, e, typeNameOpt));
}
