metamask-extension/app/scripts/migrations/025.test.js

import assert from 'assert';
import data from '../first-time-state';
import { TRANSACTION_STATUSES } from '../../../shared/constants/transaction';
import migration25 from './025';

const firstTimeState = {
  meta: {},
  data,
};

const storage = {
  meta: {},
  data: {
    TransactionController: {
      transactions: [],
    },
  },
};

const transactions = [];

while (transactions.length <= 10) {
  transactions.push({
    txParams: {
      from: '0x8aCce2391c0d510a6c5E5d8f819a678f79b7e675',
      random: 'stuff',
      chainId: 2,
    },
    status: TRANSACTION_STATUSES.UNAPPROVED,
  });
  transactions.push({
    txParams: { from: '0x8aCce2391c0d510a6c5E5d8f819a678f79b7e675' },
    status: TRANSACTION_STATUSES.CONFIRMED,
  });
}

storage.data.TransactionController.transactions = transactions;

describe('storage is migrated successfully and the txParams.from are lowercase', function () {
  it('should lowercase the from for unapproved txs', function (done) {
    migration25
      .migrate(storage)
      .then((migratedData) => {
        const migratedTransactions =
          migratedData.data.TransactionController.transactions;
        migratedTransactions.forEach((tx) => {
          if (tx.status === TRANSACTION_STATUSES.UNAPPROVED) {
            assert(!tx.txParams.random);
          }
          if (tx.status === TRANSACTION_STATUSES.UNAPPROVED) {
            assert(!tx.txParams.chainId);
          }
        });
        done();
      })
      .catch(done);
  });

  it('should migrate first time state', function (done) {
    migration25
      .migrate(firstTimeState)
      .then((migratedData) => {
        assert.equal(migratedData.meta.version, 25);
        done();
      })
      .catch(done);
  });
});