This package contains a few integration tests that require specific environment variables to work:
RUN_ETHERSCAN_TESTS: Should be set to"yes"to run the integration tests.TESTNET_NETWORK_URL: Should be set to the URL of a testnet ethereum node. Deployment transactions will be sent to this node. The chosen testnet should be supported by the Etherscan API.WALLET_PRIVATE_KEY: Should be set to a private key that holds some ether in the chosen testnet.ETHERSCAN_API_KEY: Should be set to a valid Etherscan API token key. This token will be used by the plugin when sending requests to the Etherscan API.