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export const fetch = async () => {
  return await axios.get('/users')
}

manakuro

export const fetchUsers = async () => {
  return await axios.get('/users')
}

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// Find student from lists, with the given id
const student = students.find(s => s.id === id)

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// Calculate tax based on the income and wealth value and ....
const income = document.getElementById('income').value;
const wealth = document.getElementById('wealth').value;
tax.value = (0.15 * income) + (0.25 * wealth);

// ...

manakuro

function calculateTax(income, wealth) {
  return (0.15 * income) + (0.25 * wealth);
}

manakuro

export const getAnimal = (code) => {
  if (code === 1) return 'CATS'
  if (code === 2) return 'DOGS'
  if (code === 3) return 'RABBITS'

  return null
}

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import { getAnimal } from './util';

describe('getAnimal', () => {
  it('passes', () => {
    expect(getAnimal(1)).toEqual('CATS')
  })
})

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describe('getAnimal', () => {
  it('should get CATS when passing code 1', () => {
    expect(getAnimal(1)).toEqual('CATS')
  })
})

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describe('getAnimal', () => {
  context('when passing code 1', () => {
    it('should get CATS', () => {
      expect(getAnimal(1)).toEqual('CATS')
    })  
  })
})

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describe('getAnimal', () => {
  context('when passing code 1', () => {
    beforeEach(() => {
      // arrange 
      // prepare data here
    })
    
    it('should get CATS', () => {
      // act
      const result = getAnimal(1)