Testing Standards Compliance

Back to Standards and Contracts

Overview

After compiling, verify your contract meets the target standard:

1. Check manifest — confirm supportedstandards contains the expected entries:

   cat build/MyToken/MyToken.manifest.json | jq '.supportedstandards'

2. Verify method signatures — ensure all required methods are present with correct parameter counts. The compiler warns on near-misses.

3. Test transfer with witness — invoke transfer with a valid witness scope and verify Runtime.checkWitness() passes:

   neo-express invoke MyToken transfer \
     --account sender -- sender recipient 1000 null

4. Test payment callbacks — transfer tokens to a contract and verify onNEP17Payment or onNEP11Payment is called.

5. Integration testing — use neo-express for end-to-end testing on a local private network:

   neo-express create
   neo-express run
   neo-express contract deploy build/MyToken/MyToken.nef
   neo-express invoke MyToken symbol

Compiler Warnings Are Your Friend

Address all W1xx warnings before deploying. They indicate patterns that may compile but won't produce a standards-compliant manifest or may behave unexpectedly on Neo N3.