const { calculateExpressFeeCent } = require('./expressApi')

describe('calculateExpressFeeCent', () => {
  test('matches backend express fee rule', () => {
    expect(calculateExpressFeeCent(1)).toBe(300)
    expect(calculateExpressFeeCent(2)).toBe(400)
    expect(calculateExpressFeeCent(4)).toBe(600)
  })
})