public void OperandIsEmptyArray()
 {
     var empty = new BaseFunctionLib().Obtain("empty");
     empty.FillNested(new Brackets(new Property("EmptyArray")));
     Assert.That(empty.Evaluate(new Reflection(this)), Is.True);
 }
 public void OperandIsNotNull()
 {
     var empty = new BaseFunctionLib().Obtain("empty");
     empty.FillNested(new Brackets(new Property("NotNullProperty")));
     Assert.That(empty.Evaluate(new Reflection(this)), Is.False);
 }