@allenfuture/lotide/test/tailTest.js

Support [flatten] test

const tail = require("../tail");
const assert = require("chai").assert;

describe("#tail", () => {
  it("returns [2, 3, 4] for [1, 2, 3, 4]", () => {
    //     ===
    assert.deepEqual(tail([1, 2, 3, 4]), [2, 3, 4]);
  });
  it("returns [] for []", () => {
    assert.deepEqual(tail([]), []); 
  });
});