25 lines
931 B
JavaScript
25 lines
931 B
JavaScript
const expect = require('expect');
|
|
const last = require('./last.js');
|
|
|
|
|
|
test('last is a Function', () => {
|
|
expect(last).toBeInstanceOf(Function);
|
|
});
|
|
test('last({ a: 1234}) returns undefined', () => {
|
|
expect(last({ a: 1234}) === undefined).toBeTruthy();
|
|
});
|
|
t.equal(last([1, 2, 3]), 3, "last([1, 2, 3]) returns 3");
|
|
t.equal(last({ 0: false}), undefined, 'last({ 0: false}) returns undefined');
|
|
t.equal(last('String'), 'g', 'last(String) returns g');
|
|
t.throws(() => last(null), 'last(null) throws an Error');
|
|
t.throws(() => last(undefined), 'last(undefined) throws an Error');
|
|
t.throws(() => last(), 'last() throws an Error');
|
|
|
|
let start = new Date().getTime();
|
|
last([1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 1122, 32124, 23232]);
|
|
let end = new Date().getTime();
|
|
test('last([1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 1122, 32124, 23232]) takes less than 2s to run', () => {
|
|
expect((end - start) < 2000).toBeTruthy();
|
|
});
|
|
|