internal static void AssertExists (ICSharpCode.NRefactory6.CSharp.Completion.CompletionResult provider, string testClass)
{
var data = provider.Find (testClass);
if (data == null) {
Console.WriteLine("provider contained: ");
foreach (var dp in provider)
Console.WriteLine(dp.DisplayText);
}
Assert.IsNotNull (data, "should contain '" + testClass + "");
}