typescript-example.ts

import { sum } from '../../src/foo'

describe('TypeScript spec', () => {
  it('works', () => {
    cy.wrap('foo').should('equal', 'foo')
  })

  it('calls TS source file', () => {
    expect(sum(1, 2, 3, 4)).to.equal(10)
  })
})


export const sum
  = (...a: number[]) =>
    a.reduce((acc, val) => acc + val, 0);