`npm test`
Also, consider creating your own certificate and verify its signature using Ecc:
1. `openssl ecparam -genkey -out key.pem -name secp256k1`
2. `openssl req -x509 -new -key key.pem -out cert.pem -sha256 -days 36500 -nodes -subj "/C=CA/ST=British Columbia/L=Vancouver/O=eCash Palace/OU=Software/CN=example.e.cash/emailAddress=example@e.cash"
3. Replace the contents of the CERT variable with the inner content of cert.pem (without BEGIN CERTIFICATE)
4. `npm test -- -g 'asn1.readCert'`, and update some of the variables