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import { filter as filterRamda } from 'ramda'
import { filter } from './filter.js'import { T } from './T.js'
const sampleObject = {  a : 1,  b : 2,  c : 3,  d : 4,}
test('happy', () => {  const isEven = n => n % 2 === 0
  expect(filter(isEven, [ 1, 2, 3, 4 ])).toEqual([ 2, 4 ])  expect(filter(isEven, {    a : 1,    b : 2,    d : 3,  })).toEqual({ b : 2 })})
test('predicate when input is object', () => {  const obj = {    a : 1,    b : 2,  }  const predicate = (    val, prop, inputObject  ) => {    expect(inputObject).toEqual(obj)    expect(typeof prop).toBe('string')
    return val < 2  }  expect(filter(predicate, obj)).toEqual({ a : 1 })})
test('with object', () => {  const isEven = n => n % 2 === 0  const result = filter(isEven, sampleObject)  const expectedResult = {    b : 2,    d : 4,  }
  expect(result).toEqual(expectedResult)})
test('bad inputs difference between Ramda and Rambda', () => {  expect(() => filter(T, null)).toThrowWithMessage(Error,    'Incorrect iterable input')  expect(() => filter(T)(undefined)).toThrowWithMessage(Error,    'Incorrect iterable input')  expect(() => filterRamda(T, null)).toThrowWithMessage(TypeError,    'Cannot read properties of null (reading \'fantasy-land/filter\')')  expect(() => filterRamda(T, undefined)).toThrowWithMessage(TypeError,    'Cannot read properties of undefined (reading \'fantasy-land/filter\')')})