integration tests

how to run

npm i
npm run test

a random generated test account

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5Do5y4d8KBQcGHwgd9k7fh1fj3ra5twoayMEgyo6otkV4kzq

test compile and deploy contract

compile:

npm run contract:compile

deploy:

npm run contract:deploy

Currently these 2 commands won't exit on error, need improve in the future.