import { ens, INITIAL_STATE } from 'reducers/ens'; import * as ensActions from 'actions/ens'; describe('customTokens reducer', () => { it('should handle ENS_CACHE', () => { const ensName = 'ensName'; const address = 'address'; expect( ens(undefined, ensActions.cacheEnsAddress(ensName, address)) ).toEqual({ ...INITIAL_STATE, [ensName]: address }); }); });