Steps:
1. Transform the ETRS89 coordinates from the text file to RDNAP with the transformation implementation you want to test.
2. Test if the difference between the obtained result with the RDNAP coordinates from the text file are all below 0.0010 m.

3. Transform the RDNAP coordinates from the text file to ETRS89 with the transformation implementation you want to test.
4. Test if the difference between the obtained result with the ETRS89 coordinates from the text file are all below 0.000000010 degree for latitude and longitude and all below 0.0010 m for the height.

Alternatively, you can use the Validation Service at https://nsgi.nl/.
