import { describe, expect, it } from '@jest/globals';
import { toNative as $$, _, fromNative as __, cnst, id, undef } from '../src/core';

describe('id', () => {
  it('returns first argument', () => {
    expect($$(id(__('first')))).toBe('first');
  });
});

describe('cnst', () => {
  it('returns first argument after receiving second', () => {
    expect($$(cnst(__('first'))(__('second')))).toBe('first');
  });

  it('ignores second argument', () => {
    expect($$(cnst(__('first'))(undef))).toBe('first');
  });
});

describe('pipe', () => {
  it.failing('applies both functions in order', () => {
    expect('Not implemented').toBe('Implemented');
  });
});