'use strict'; const assert = require('assert'); const ref = require('../'); describe('isNull', function() { it('should return "true" for the NULL pointer', function() { assert.strictEqual(true, ref.isNull(ref.NULL)); }); it('should return "false" for a valid Buffer', function() { const buf = Buffer.from('hello'); assert.strictEqual(false, ref.isNull(buf)); }); });