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import {  add,  subtract,  compose,  map,  filter,  identity,  inc,  negate,  dissoc,} from 'rambda'
interface Input {  a: string,  b: string,}interface Output {  c: string,}
describe('R.compose with explicit types', () => {  it('with explicit types - complex', () => {    const obj = {      a: 'foo',      b: 'bar',    }    interface AfterInput {      a: number,    }    interface BeforeOutput {      b: string,    }
    const result = compose<Input[], AfterInput, BeforeOutput, Output>(      x => ({c: x.b + 'bar'}),      x => ({b: x.a + 'foo'}),      x => ({a: x.a.length + x.b.length})    )(obj)
    result // $ExpectType Output  })  it('with explicit types - correct', () => {    const obj = {      a: 'foo',      b: 'bar',    }    const result = compose<Input[], Output, Output>(identity, input => {      input // $ExpectType Input      return (input as unknown) as Output    })(obj)    result // $ExpectType Output  })  it('with explicit types - wrong', () => {    const obj: Input = {      a: 'foo',      b: 'bar',    }
    // $ExpectError    compose<string, number, Output>(identity, dissoc('b'))(obj)  })})
describe('R.compose', () => {  it('happy', () => {    const result = compose(subtract(11), add(1), add(1))(1)    result // $ExpectType number  })  it('happy - more complex', () => {    const result = compose(      (x: number) => x + 1,      (x: string) => x.length + 1    )('foo')    result // $ExpectType number  })
  it('with R.filter', () => {    const result = compose(      filter<number>(x => x > 2),      map(add(1))    )([1, 2, 3])    result // $ExpectType number[]  })
  it('with native filter', () => {    const result = compose(      (list: number[]) => list.filter(x => x > 2),      (list: number[]) => {        list // $ExpectType number[]        return list      },      map(add(1))    )([1, 2, 3])
    result // $ExpectType number[]  })
  it('with void', () => {    const result = compose(      () => {},      () => {}    )()    result // $ExpectType void  })})
describe('R.compose - @types/ramda tests', () => {  test('complex', () => {    const fn = compose(      inc,      inc,      inc,      inc,      inc,      inc,      inc,      inc,      negate,      Math.pow    )    const result = fn(3, 4)    result // $ExpectType number  })})