metamask-extension/test/unit/app/personal-message-manager-test.js

import assert from 'assert';
import PersonalMessageManager from '../../../app/scripts/lib/personal-message-manager';
import { TRANSACTION_STATUSES } from '../../../shared/constants/transaction';

describe('Personal Message Manager', function () {
  let messageManager;

  beforeEach(function () {
    messageManager = new PersonalMessageManager();
  });

  describe('#getMsgList', function () {
    it('when new should return empty array', function () {
      const result = messageManager.messages;
      assert.ok(Array.isArray(result));
      assert.equal(result.length, 0);
    });
  });

  describe('#addMsg', function () {
    it('adds a Msg returned in getMsgList', function () {
      const Msg = {
        id: 1,
        status: TRANSACTION_STATUSES.APPROVED,
        metamaskNetworkId: 'unit test',
      };
      messageManager.addMsg(Msg);
      const result = messageManager.messages;
      assert.ok(Array.isArray(result));
      assert.equal(result.length, 1);
      assert.equal(result[0].id, 1);
    });
  });

  describe('#setMsgStatusApproved', function () {
    it('sets the Msg status to approved', function () {
      const Msg = {
        id: 1,
        status: TRANSACTION_STATUSES.UNAPPROVED,
        metamaskNetworkId: 'unit test',
      };
      messageManager.addMsg(Msg);
      messageManager.setMsgStatusApproved(1);
      const result = messageManager.messages;
      assert.ok(Array.isArray(result));
      assert.equal(result.length, 1);
      assert.equal(result[0].status, TRANSACTION_STATUSES.APPROVED);
    });
  });

  describe('#rejectMsg', function () {
    it('sets the Msg status to rejected', function () {
      const Msg = {
        id: 1,
        status: TRANSACTION_STATUSES.UNAPPROVED,
        metamaskNetworkId: 'unit test',
      };
      messageManager.addMsg(Msg);
      messageManager.rejectMsg(1);
      const result = messageManager.messages;
      assert.ok(Array.isArray(result));
      assert.equal(result.length, 1);
      assert.equal(result[0].status, TRANSACTION_STATUSES.REJECTED);
    });
  });

  describe('#_updateMsg', function () {
    it('replaces the Msg with the same id', function () {
      messageManager.addMsg({
        id: '1',
        status: TRANSACTION_STATUSES.UNAPPROVED,
        metamaskNetworkId: 'unit test',
      });
      messageManager.addMsg({
        id: '2',
        status: TRANSACTION_STATUSES.APPROVED,
        metamaskNetworkId: 'unit test',
      });
      messageManager._updateMsg({
        id: '1',
        status: 'blah',
        hash: 'foo',
        metamaskNetworkId: 'unit test',
      });
      const result = messageManager.getMsg('1');
      assert.equal(result.hash, 'foo');
    });
  });

  describe('#getUnapprovedMsgs', function () {
    it('returns unapproved Msgs in a hash', function () {
      messageManager.addMsg({
        id: '1',
        status: TRANSACTION_STATUSES.UNAPPROVED,
        metamaskNetworkId: 'unit test',
      });
      messageManager.addMsg({
        id: '2',
        status: TRANSACTION_STATUSES.APPROVED,
        metamaskNetworkId: 'unit test',
      });
      const result = messageManager.getUnapprovedMsgs();
      assert.equal(typeof result, 'object');
      assert.equal(result['1'].status, TRANSACTION_STATUSES.UNAPPROVED);
      assert.equal(result['2'], undefined);
    });
  });

  describe('#getMsg', function () {
    it('returns a Msg with the requested id', function () {
      messageManager.addMsg({
        id: '1',
        status: TRANSACTION_STATUSES.UNAPPROVED,
        metamaskNetworkId: 'unit test',
      });
      messageManager.addMsg({
        id: '2',
        status: TRANSACTION_STATUSES.APPROVED,
        metamaskNetworkId: 'unit test',
      });
      assert.equal(
        messageManager.getMsg('1').status,
        TRANSACTION_STATUSES.UNAPPROVED,
      );
      assert.equal(
        messageManager.getMsg('2').status,
        TRANSACTION_STATUSES.APPROVED,
      );
    });
  });

  describe('#normalizeMsgData', function () {
    it('converts text to a utf8 hex string', function () {
      const input = 'hello';
      const output = messageManager.normalizeMsgData(input);
      assert.equal(output, '0x68656c6c6f', 'predictably hex encoded');
    });

    it('tolerates a hex prefix', function () {
      const input = '0x12';
      const output = messageManager.normalizeMsgData(input);
      assert.equal(output, '0x12', 'un modified');
    });

    it('tolerates normal hex', function () {
      const input = '12';
      const output = messageManager.normalizeMsgData(input);
      assert.equal(output, '0x12', 'adds prefix');
    });
  });
});