/// <summary>
/// Called to test a C# DiagnosticAnalyzer when applied on the inputted strings as a source
/// Note: input a DiagnosticResult for each Diagnostic expected
/// </summary>
/// <param name="sources">An array of strings to create source documents from to run the analyzers on</param>
/// <param name="expected">DiagnosticResults that should appear after the analyzer is run on the sources</param>
protected void VerifyDiagnostic(string[] sources, DiagnosticResult[] expected)
{
var actual = _diagnosticAnalyzer.GetSortedDiagnostics(sources, LanguageNames.CSharp);
var result = _diagnosticAnalyzer.VerifyDiagnosticResults(actual, expected);
result.Success.ShouldBe(true, result.ErrorMessage);
}