const expect = require('expect'); const isPrimitive = require('./isPrimitive.js'); test('Testing isPrimitive', () => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape expect(typeof isPrimitive === 'function').toBeTruthy(); expect(isPrimitive(null)).toBeTruthy(); expect(isPrimitive(undefined)).toBeTruthy(); expect(isPrimitive('string')).toBeTruthy(); expect(isPrimitive(true)).toBeTruthy(); expect(isPrimitive(50)).toBeTruthy(); expect(isPrimitive('Hello')).toBeTruthy(); expect(isPrimitive(false)).toBeTruthy(); expect(isPrimitive(Symbol())).toBeTruthy(); expect(isPrimitive([1, 2, 3])).toBeFalsy(); expect(isPrimitive({ a: 123 })).toBeFalsy(); let start = new Date().getTime(); isPrimitive({ a: 123 }); let end = new Date().getTime(); expect((end - start) < 2000).toBeTruthy(); });