metamask-extension/ui/app/selectors/tests/selectors.test.js

import assert from 'assert';
import * as selectors from '../selectors';
import mockState from '../../../../test/data/mock-state.json';

describe('Selectors', function () {
  describe('#getSelectedAddress', function () {
    it('returns undefined if selectedAddress is undefined', function () {
      assert.strictEqual(
        selectors.getSelectedAddress({ metamask: {} }),
        undefined,
      );
    });

    it('returns selectedAddress', function () {
      const selectedAddress = '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc';
      assert.strictEqual(
        selectors.getSelectedAddress({ metamask: { selectedAddress } }),
        selectedAddress,
      );
    });
  });

  it('returns selected identity', function () {
    assert.deepStrictEqual(selectors.getSelectedIdentity(mockState), {
      address: '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc',
      name: 'Test Account',
    });
  });

  it('returns selected account', function () {
    const account = selectors.getSelectedAccount(mockState);
    assert.strictEqual(account.balance, '0x0');
    assert.strictEqual(
      account.address,
      '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc',
    );
  });

  describe('#getTokenExchangeRates', function () {
    it('returns token exchange rates', function () {
      const tokenExchangeRates = selectors.getTokenExchangeRates(mockState);
      assert.deepStrictEqual(tokenExchangeRates, {
        '0x108cf70c7d384c552f42c07c41c0e1e46d77ea0d': 0.00039345803819379796,
        '0xd8f6a2ffb0fc5952d16c9768b71cfd35b6399aa5': 0.00008189274407698049,
      });
    });
  });

  describe('#getAddressBook', function () {
    it('should return the address book', function () {
      assert.deepStrictEqual(selectors.getAddressBook(mockState), [
        {
          address: '0xc42edfcc21ed14dda456aa0756c153f7985d8813',
          chainId: '0x4',
          isEns: false,
          memo: '',
          name: 'Address Book Account 1',
        },
      ]);
    });
  });

  it('returns accounts with balance, address, and name from identity and accounts in state', function () {
    const accountsWithSendEther = selectors.accountsWithSendEtherInfoSelector(
      mockState,
    );
    assert.strictEqual(accountsWithSendEther.length, 2);
    assert.strictEqual(accountsWithSendEther[0].balance, '0x0');
    assert.strictEqual(
      accountsWithSendEther[0].address,
      '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc',
    );
    assert.strictEqual(accountsWithSendEther[0].name, 'Test Account');
  });

  it('returns selected account with balance, address, and name from accountsWithSendEtherInfoSelector', function () {
    const currentAccountwithSendEther = selectors.getCurrentAccountWithSendEtherInfo(
      mockState,
    );
    assert.strictEqual(currentAccountwithSendEther.balance, '0x0');
    assert.strictEqual(
      currentAccountwithSendEther.address,
      '0x0dcd5d886577d5081b0c52e242ef29e70be3e7bc',
    );
    assert.strictEqual(currentAccountwithSendEther.name, 'Test Account');
  });

  it('#getGasIsLoading', function () {
    const gasIsLoading = selectors.getGasIsLoading(mockState);
    assert.strictEqual(gasIsLoading, false);
  });

  it('#getCurrentCurrency', function () {
    const currentCurrency = selectors.getCurrentCurrency(mockState);
    assert.strictEqual(currentCurrency, 'usd');
  });

  it('#getTotalUnapprovedCount', function () {
    const totalUnapprovedCount = selectors.getTotalUnapprovedCount(mockState);
    assert.strictEqual(totalUnapprovedCount, 1);
  });
});