public void TestUpperEmpty()
{
var function = new ToUpperCaseFunction();
Assert.That(function.Evaluate(""), Is.EqualTo(""));
}
public void TestUpperNull()
{
var function = new ToUpperCaseFunction();
Assert.That(function.Evaluate(new string[1]), Is.EqualTo(""));
}
public void TestNothingToUpper()
{
var function = new ToUpperCaseFunction();
Assert.That(function.Evaluate("SOME TEXT"), Is.EqualTo("SOME TEXT"));
}
