private IEnumerable <string> GetUsings(ClassDeclarationSyntax node)
{
if (node != null)
{
var isTest = node.Annotations.EmptyIfNull().Any(a => a?.IsTest ?? false);
if (!isTest)
{
var testMethods =
from method in node.Members.EmptyIfNull().OfType <MethodDeclarationSyntax>()
from ann in method.Annotations.EmptyIfNull()
where ann?.IsTest ?? false
select method;
isTest = testMethods.Any();
}
if (isTest)
{
return(Usings.Concat(UnitTestUsings));
}
}
return(Usings);
}