New Post: How to handle NOT isOnSale condition in a productlist template ?

In default productlist templates documentation the following example is shown:
[TAG:TEST:<prop TestType="isOnSale" Action="Show" />]<!-- Sale Pricing -->

        [TAG:TEST:<prop TestType="hasModels|hasOptions" Action="Show" />] [TAG:END]        [TAG:PRICESALECURRENCY]

[TAG:END]

How can i use the TAG:TEST with the NOT isOnSale condition ?

Any help is appreciated