drop.js

const test = require("tape");
const { drop } = require("../");
const {
  testAndToArray,
  oneTwoThree,
  oneTwoThreeFour,
  positiveIntegers,
  takeThree,
} = require("./_tools");

test("drop", (t) => {
  const processIterable = testAndToArray(t);
  const dropOne = drop(1);
  t.deepEqual(processIterable(dropOne(oneTwoThreeFour)), [2, 3, 4]);
  t.deepEqual(processIterable(dropOne(oneTwoThreeFour)), [2, 3, 4]);
  const twoThreeFour = dropOne(oneTwoThreeFour);
  t.deepEqual(processIterable(twoThreeFour), [2, 3, 4]);
  t.deepEqual(processIterable(twoThreeFour), [2, 3, 4]);
  t.deepEqual(processIterable(twoThreeFour), [2, 3, 4]);
  t.deepEqual(processIterable(takeThree(dropOne(positiveIntegers))), [2, 3, 4]);
  t.deepEqual(processIterable(takeThree(dropOne(positiveIntegers))), [2, 3, 4]);
  t.deepEqual(processIterable(drop(3)(oneTwoThreeFour)), [4]);
  t.deepEqual(processIterable(drop(30, oneTwoThree)), []);
  t.deepEqual(processIterable(drop(30, oneTwoThree)), []);
  t.end();
});