all files / src/__tests__/ fieldKeys.spec.js

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import expect from 'expect'
import fieldKeys from '../fieldKeys'
 
describe('fieldKeys', () => {
  it('should return an empty array if no fields or values', () => {
    expect([...fieldKeys()])
      .toEqual([])
  })
 
  it('should handle simple fields with no values', () => {
    expect([...fieldKeys(
      ['a', 'b', 'c']
    )])
      .toEqual(['a', 'b', 'c'])
  })
 
  it('should handle simple fields with values', () => {
    expect([...fieldKeys(
      ['a', 'b', 'c'],
      { a: 1, b: 2, c: 3 }
    )])
      .toEqual(['a', 'b', 'c'])
  })
 
  it('should handle deep fields with no values', () => {
    expect([...fieldKeys(
      ['a.b.c', 'd.e.f']
    )])
      .toEqual(['a.b.c', 'd.e.f'])
  })
 
  it('should handle deep fields with values', () => {
    expect([...fieldKeys(
      ['a.b.c', 'd.e.f'],
      {
        a: {
          b: {
            c: 42
          }
        },
        d: {
          e: {
            f: 43
          }
        }
      }
    )])
      .toEqual(['a.b.c', 'd.e.f'])
  })
 
  it('should handle array fields with no values', () => {
    expect([...fieldKeys(
      ['a[]', 'b.c[]', 'd[].e']
    )])
      .toEqual(['a[]', 'b.c[]', 'd[]'])
  })
 
  it('should handle array fields with values', () => {
    expect([...fieldKeys(
      ['a[]', 'b.c[]', 'd[].e', 'f[].g'],
      {
        a: ['dog', 'cat'],
        b: {
          c: ['pig']
        },
        d: [
          {e: 'h'},
          {e: 'i'}
        ]
      }
    )])
      .toEqual(['a[0]', 'a[1]', 'b.c[0]', 'd[0].e', 'd[1].e', 'f[]'])
  })
})