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import { flip } from './flip.js'import { subtract } from './subtract.js'import { update } from './update.js'
test('function with arity of 2', () => {  const subtractFlipped = flip(subtract)
  expect(subtractFlipped(1)(7)).toBe(6)  expect(subtractFlipped(1, 7)).toBe(6)  expect(subtractFlipped(    1, 7, 9  )).toBe(6)})
test('function with arity of 3', () => {  const updateFlipped = flip(update)
  const result = updateFlipped(    88, 0, [ 1, 2, 3 ]  )  const curriedResult = updateFlipped(88, 0)([ 1, 2, 3 ])  const tripleCurriedResult = updateFlipped(88)(0)([ 1, 2, 3 ])  expect(result).toEqual([ 88, 2, 3 ])  expect(curriedResult).toEqual([ 88, 2, 3 ])  expect(tripleCurriedResult).toEqual([ 88, 2, 3 ])})
test('function with arity of 4', () => {  const testFunction = (    a, b, c, d  ) => `${ a - b }==${ c - d }`  const testFunctionFlipped = flip(testFunction)
  const result = testFunction(    1, 2, 3, 4  )  const flippedResult = testFunctionFlipped(    2, 1, 3, 4  )  expect(result).toEqual(flippedResult)  expect(result).toBe('-1==-1')})
test('function with arity of 5', () => {  const testFunction = (    a, b, c, d, e  ) => `${ a - b }==${ c - d - e }`  const testFunctionFlipped = flip(testFunction)
  expect(() =>    testFunctionFlipped(      1, 2, 3, 4, 5    )).toThrowErrorMatchingInlineSnapshot('"R.flip doesn\'t work with arity > 4"')})