test.js
1.84 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
describe('fn.name', function () {
'use strict';
var assume = require('assume')
, name = require('./');
it('is exported as a function', function () {
assume(name).is.a('function');
});
it('can extract the name from a function declaration', function () {
function foobar() {}
assume(name(foobar)).equals('foobar');
});
it('can extract the name from a function expression', function () {
var a = function bar() {};
assume(name(a)).equals('bar');
});
it('can be overriden using displayName', function () {
var a = function bar() {};
a.displayName = 'bro';
assume(name(a)).equals('bro');
});
it('works with constructed instances', function () {
function Bar(){}
var foo = new Bar();
assume(name(foo)).equals('Bar');
});
it('works with anonymous', function () {
assume(name(function () {})).equals('anonymous');
});
it('returns the className if we were not given a function', function () {
assume(name('string')).equals('String');
});
//
// Test if the env supports async functions, if so add a test to ensure
// that we will work with async functions.
//
var asyncfn = true;
try { new Function('return async function hello() {}')(); }
catch (e) { asyncfn = false; }
if (asyncfn) it('detects the name of async functions', function () {
var fn = new Function('return async function hello() {}')();
assume(name(fn)).equals('hello');
});
//
// Test that this env supports generators, if so add a test to ensure that
// we will work with generators.
//
var generators = true;
try { new Function('return function* generator() {}')(); }
catch (e) { generator = false; }
if (generators) it('detecs the name of a generator', function () {
var fn = new Function('return function* hello() {}')();
assume(name(fn)).equals('hello');
});
});