A reactive data-store for web3 and smart contracts
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import { getAccounts } from '../src/accounts/accountsSaga'
import { call, put } from 'redux-saga/effects'
import * as AccountsActions from '../src/accounts/constants'
describe('Accounts Saga', () => {
let mockedWeb3, mockedGetAccounts
let gen
beforeEach(() => {
mockedGetAccounts = jest.fn()
mockedWeb3 = { eth: { getAccounts: mockedGetAccounts } }
gen = getAccounts({ web3: mockedWeb3 })
})
test('retrieves Metamask accounts', () => {
expect(gen.next().value).toEqual(call(mockedGetAccounts))
expect(gen.next(global.accounts).value).toEqual(
put({ type: AccountsActions.ACCOUNTS_FETCHED, accounts: global.accounts })
)
})
describe('Fails', () => {
test('when accounts are not retrieved', () => {
expect(gen.next().value).toEqual(call(mockedGetAccounts))
expect(gen.next(undefined).value).toEqual(
put({ type: AccountsActions.ACCOUNTS_FAILED, error: 'No accounts found!' })
)
})
test('when when an exception occurs', () => {
const error = new Error()
expect(gen.next().value).toEqual(call(mockedGetAccounts))
expect(gen.throw(error).value).toEqual(
put({ type: AccountsActions.ACCOUNTS_FAILED, error })
)
})
})
})