source: trip-planner-front/node_modules/object-is/test/tests.js@ fa375fe

Last change on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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Line 
1'use strict';
2
3var hasSymbols = require('has-symbols')();
4
5module.exports = function runTests(is, t) {
6 t.test('works with primitives', function (st) {
7 st.ok(is(), 'two absent args are the same');
8 st.ok(is(undefined), 'undefined & one absent arg are the same');
9 st.ok(is(undefined, undefined), 'undefined is undefined');
10 st.ok(is(null, null), 'null is null');
11 st.ok(is(true, true), 'true is true');
12 st.ok(is(false, false), 'false is false');
13 st.notOk(is(true, false), 'true is not false');
14 st.end();
15 });
16
17 t.test('works with NaN', function (st) {
18 st.ok(is(NaN, NaN), 'NaN is NaN');
19 st.end();
20 });
21
22 t.test('differentiates zeroes', function (st) {
23 st.ok(is(0, 0), '+0 is +0');
24 st.ok(is(-0, -0), '-0 is -0');
25 st.notOk(is(0, -0), '+0 is not -0');
26 st.end();
27 });
28
29 t.test('nonzero numbers', function (st) {
30 st.ok(is(Infinity, Infinity), 'infinity is infinity');
31 st.ok(is(-Infinity, -Infinity), 'infinity is infinity');
32 st.ok(is(42, 42), '42 is 42');
33 st.notOk(is(42, -42), '42 is not -42');
34 st.end();
35 });
36
37 t.test('strings', function (st) {
38 st.ok(is('', ''), 'empty string is empty string');
39 st.ok(is('foo', 'foo'), 'string is string');
40 st.notOk(is('foo', 'bar'), 'string is not different string');
41 st.end();
42 });
43
44 t.test('objects', function (st) {
45 var obj = {};
46 st.ok(is(obj, obj), 'object is same object');
47 st.notOk(is(obj, {}), 'object is not different object');
48 st.end();
49 });
50
51 t.test('Symbols', { skip: !hasSymbols }, function (st) {
52 st.ok(is(Symbol.iterator, Symbol.iterator), 'Symbol.iterator is itself');
53 st.notOk(is(Symbol(), Symbol()), 'different Symbols are not equal');
54 st.notOk(is(Symbol.iterator, Object(Symbol.iterator)), 'Symbol.iterator is not boxed form of itself');
55 st.end();
56 });
57};
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