"use strict";

const modulo = require("../../src/deps/math/modulo");

const eq = (x, y, msg) => expect(x).toEqual(y);

describe('modulo', function () {
  it('divides the first param by the second and returns the remainder', function () {
    eq(modulo(100, 2), 0);
    eq(modulo(100, 3), 1);
    eq(modulo(100, 17), 15);
  });
  it('is curried', function () {
    var hundredMod = modulo(100);
    eq(typeof hundredMod, 'function');
    eq(hundredMod(2), 0);
    eq(hundredMod(3), 1);
    eq(hundredMod(17), 15);
  });
  it('behaves right curried when passed `__` for its first argument', function () {
    var isOdd = modulo('_', 2);
    eq(typeof isOdd, 'function');
    eq(isOdd(3), 1);
    eq(isOdd(198), 0);
  });
  it('preserves javascript-style modulo evaluation for negative numbers', function () {
    eq(modulo(-5, 4), -1);
  });
});