13 lines
281 B
JavaScript
13 lines
281 B
JavaScript
const expect = require('expect');
|
|
const isUndefined = require('./isUndefined.js');
|
|
|
|
|
|
test('isUndefined is a Function', () => {
|
|
expect(isUndefined).toBeInstanceOf(Function);
|
|
});
|
|
test('Returns true for undefined', () => {
|
|
expect(isUndefined(undefined)).toBeTruthy();
|
|
});
|
|
|
|
|