is-eq-zero/test.js

Returns true if the given number is 0, false otherwise.

"use strict";

require("mocha");
const assert = require("assert");
const is0 = require("./");

describe("is0", function() {
    it("should return true if the number is 0", function() {
        assert(is0(0));
    });
  
    it("should return false if the number is not 0", function() {
        assert(!is0(0 + 1));
    });
    
    it("should return false if the number is not a number at all", function() {
        assert(!is0(null));
        assert(!is0(undefined));
        assert(!is0("0"));
        assert(!is0({prop: "0"}));
    });
});