For the testing philosophy of CAN chips see http://www.cs-group.de/attached/sae99pc349.PDF This Paper is not anymore available. Who knows where to get it? SAE

But there is another one by Wolfhard Lawrenz “Conformance Test of In-Vehicle Communication Protocols - Why?” http://www.cs-group.de/uploads/media/CT_Concept_02.pdf

The following standards are important:

• ISO 11898-1:2015: CAN Data link layer and physical signaling for Classical CAN and CAN FD
• ISO 11898-2: CAN High Speed Physical Layer
• ISO 11898-3: CAN Low-speed, fault-tolerant, medium-dependent interface
• ISO 11898-4: TTCAN Time-triggered communication
• ISO 11898-5: CAN High-speed medium access unit with low-power mode
• ISO 11898-6:2013: High-speed medium access unit with selective wake-up functionality
• ISO 16845-1:2016: CAN Conformance Test Plan, since Oct 2016 it covers Classical CAN and the CAN FD protocols.
  An update regarding REC increment on CRC error is available at CiA web site.
• ISO 16845-2 CAN FD Physical Layer Test Plan

Test Lab C&S is testing compliance with OSI Layer 2.