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I am working on the my contracts testing scripts. But I want to run tests not on the local TestRPC or Ganache but in the Ropsten testnet. How can I predefine a list of accounts (private keys and addresses)?

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  • What node are you connecting to Ropsten with? Mar 9, 2020 at 9:42
  • @goodvibration basically I am working with Shasta and TRON now. There no such big community for TRON, so I asked here and want to port solution to the Tronbox+tronweb+Shasta stack. Mar 9, 2020 at 10:50

2 Answers 2

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You can use truffle-hdwallet-provider and provide it with mnemonic which has addresses funded with Ropsten Ethers.

var HDWalletProvider = require("truffle-hdwallet-provider");

var mnemonic = "mountains supernatural bird ...";

module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 8545,
      network_id: "*" // Match any network id
    },
    ropsten: {
      // must be a thunk, otherwise truffle commands may hang in CI
      provider: () =>
        new HDWalletProvider(mnemonic, "https://ropsten.infura.io/"),
      network_id: '3',
    }
  }
};
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You can use HDWalletProvider to connect to a provider (infura or your local node) using a mnemonic phrase. In case you are using truffle, you can do it by seting you config to something like this:

...
    networks: {
    kovan: {
          provider: () => new HDWalletProvider(mnemonic, `https://kovan.infura.io/v3/${infuraKey}`),
          network_id: 3,       // Ropsten id
          ...
        }
      }
    ...

Attention that HDWalletProvider is deprecated. But I, personally, still use it often for testing environments.

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