-
-
Notifications
You must be signed in to change notification settings - Fork 7
/
test.js
464 lines (414 loc) · 13.3 KB
/
test.js
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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
'use strict';
require('mocha');
require('should');
var assert = require('assert');
var App = require('./fixtures/app');
var cu = require('./');
assert.hasAll = function(a, b) {
assert(cu.hasAll(a, b));
};
assert.contains = function(a, b) {
assert(cu.has(a, b));
};
describe('noop', function() {
it('should return undefined:', function() {
assert(typeof cu.noop({}) === 'undefined');
assert(typeof cu.noop('foo') === 'undefined');
});
});
describe('isObject', function() {
it('should be true if the value is an object:', function() {
assert(cu.isObject({}));
});
it('should be true if the value is a function:', function() {
assert(cu.isObject(function() {}));
});
it('should be false if the value is an object:', function() {
assert(!cu.isObject('foo'));
});
});
describe('identity', function() {
it('should return the given value:', function() {
assert.deepEqual(cu.identity({}), {});
assert.deepEqual(cu.identity('foo'), 'foo');
assert.deepEqual(cu.identity(['foo']), ['foo']);
assert.deepEqual(cu.identity([]), []);
});
});
describe('hasAll', function() {
describe('object', function() {
it('should be true if an object has all given value:', function() {
assert(cu.hasAll({
a: 'b',
b: 'c',
c: 'd'
}, 'c'));
assert(cu.hasAll({
a: 'b',
b: 'c',
c: 'd'
}, ['c', 'b']));
assert(cu.hasAll({
a: 'b',
b: 'c',
c: 'd'
}, ['a', 'b', 'c']));
});
it('should be false if an object does not have all given value:', function() {
assert(!cu.hasAll({
a: 'b',
b: 'c',
c: 'd'
}, 'd'));
assert(!cu.hasAll({
a: 'b',
b: 'c',
c: 'd'
}, ['c', 'b', 'z']));
});
});
describe('arrays', function() {
it('should be true if an array has all given value:', function() {
assert(cu.hasAll(['a', 'b', 'c'], 'c'));
assert(cu.hasAll(['a', 'b', 'c'], ['c', 'b']));
assert(cu.hasAll(['a', 'b', 'c'], ['a', 'b', 'c']));
});
it('should be false if an array does not have all given value:', function() {
assert(!cu.hasAll(['a', 'b', 'c'], 'd'));
assert(!cu.hasAll(['a', 'b', 'c'], ['c', 'b', 'z']));
});
});
});
describe('has', function() {
describe('objects', function() {
it('should return true if an array has the given value:', function() {
assert(cu.has({
a: 'b',
b: 'c',
c: 'd'
}, 'c'));
assert(cu.has({
a: 'b',
b: 'c',
c: 'd'
}, 'b'));
});
it('should return false if an array does not have the given value:', function() {
assert(!cu.has({
a: 'b',
b: 'c',
c: 'd'
}, 'd'));
assert(!cu.has({
a: 'b',
b: 'c',
c: 'd'
}, 'e'));
});
it('should return true if an array has any given values:', function() {
assert(cu.has({
a: 'b',
b: 'c',
c: 'd'
}, ['c', 'z']));
assert(cu.has({
a: 'b',
b: 'c',
c: 'd'
}, ['a', 'z']));
});
it('should return false if an array does not have any given values:', function() {
assert(!cu.has({
a: 'b',
b: 'c',
c: 'd'
}, ['x', 'z']));
assert(!cu.has({
a: 'b',
b: 'c',
c: 'd'
}, ['y', 'z']));
});
});
describe('arrays', function() {
it('should return true if an array has the given value:', function() {
assert(cu.has(['a', 'b', 'c'], 'c'));
assert(cu.has(['a', 'b', 'c'], 'b'));
});
it('should return false if an array does not have the given value:', function() {
assert(!cu.has(['a', 'b', 'c'], 'd'));
assert(!cu.has(['a', 'b', 'c'], 'e'));
});
it('should return true if an array has any given values:', function() {
assert(cu.has(['a', 'b', 'c'], ['c', 'z']));
assert(cu.has(['a', 'b', 'c'], ['a', 'z']));
});
it('should return false if an array does not have any given values:', function() {
assert(!cu.has(['a', 'b', 'c'], ['x', 'z']));
assert(!cu.has(['a', 'b', 'c'], ['y', 'z']));
});
});
it('should throw an error when the value is not an array or object:', function() {
(function() {
cu.has('foo');
}).should.throw('expected an array or object.');
});
});
describe('hasConstructor', function() {
it('should return true if a value is an object and has a constructor:', function() {
assert(cu.hasConstructor({
a: 'b',
b: 'c',
c: 'd'
}));
assert(cu.hasConstructor(function() {}));
assert(cu.hasConstructor(App));
assert(cu.hasConstructor(new App()));
assert(cu.hasConstructor(Object.create(new App())));
});
it('should return false if a value is not object:', function() {
assert(!cu.hasConstructor('foo'));
assert(!cu.hasConstructor(5));
});
it('should return false if an object does not have a constructor:', function() {
assert(!cu.hasConstructor(Object.create(null)));
assert(!cu.hasConstructor(null));
});
});
describe('nativeKeys', function() {
it('should get the native keys of an object:', function() {
assert.hasAll(cu.nativeKeys({
a: 'b',
b: 'c',
c: 'd'
}), ['a', 'b', 'c']);
assert.hasAll(cu.nativeKeys(function() {}), ['length', 'name', 'prototype']);
assert.hasAll(cu.nativeKeys(App), ['length', 'name', 'prototype']);
assert.hasAll(cu.nativeKeys(App.prototype), ['constructor', 'set', 'get', 'del']);
assert.hasAll(cu.nativeKeys(App.constructor), ['length', 'name', 'caller']);
assert.hasAll(cu.nativeKeys(App.prototype.constructor), ['length', 'caller']);
assert.hasAll(cu.nativeKeys(new App()), ['options']);
assert.hasAll(cu.nativeKeys(Object.create(new App())), []);
});
it('should return empty array if a value does not have native keys:', function() {
assert.deepEqual(cu.nativeKeys(Object.create(null)), []);
assert.deepEqual(cu.nativeKeys(null), []);
});
});
describe('getDescriptor', function() {
it('should get the native keys of an object:', function() {
assert.contains(cu.getDescriptor(App.prototype, 'count'), ['get',
'set'
]);
assert(typeof cu.getDescriptor(App.prototype, 'foo') ===
'undefined');
});
it('should throw an error when key is not a string:', function() {
(function() {
cu.getDescriptor({}, {}, null);
}).should.throw('expected key to be a string.');
});
it('should throw an error when receiver is not an object:', function() {
(function() {
cu.getDescriptor('foo');
}).should.throw('expected an object.');
});
});
describe('copyDescriptor', function() {
it('should copy a descriptor from the provider to receiver:', function() {
var proto = App.prototype;
var obj = {};
cu.copyDescriptor(obj, proto, 'count');
assert.contains(cu.getDescriptor(obj, 'count'), ['get', 'set']);
});
it('should do nothing when the descriptor does not exist:', function() {
var proto = App.prototype;
var obj = {};
cu.copyDescriptor(obj, proto, 'foo');
assert.deepEqual(obj, {});
});
it('should throw an error when name is not a string:', function() {
(function() {
cu.copyDescriptor({}, {}, null);
}).should.throw('expected name to be a string.');
});
it('should throw an error when receiver is not an object:', function() {
(function() {
cu.copyDescriptor('foo');
}).should.throw('expected receiving object to be an object.');
});
it('should throw an error when provider is not an object:', function() {
(function() {
cu.copyDescriptor({}, 'foo');
}).should.throw('expected providing object to be an object.');
});
});
describe('copy', function() {
it('should copy descriptors from the provider to receiver:', function() {
var proto = App.prototype;
var obj = {};
cu.copy(obj, proto);
assert.contains(cu.getDescriptor(obj, 'count'), ['get', 'set']);
});
it('should copy properties from the provider to receiver:', function() {
var proto = App.prototype;
var obj = {};
cu.copy(obj, proto);
obj.set('a', 'b');
assert(obj.a === 'b');
assert.contains(obj, ['get', 'set']);
});
it('should do nothing when the property does not exist:', function() {
var proto = App.prototype;
var obj = {};
cu.copy(obj, proto, 'foo');
assert.deepEqual(obj, {});
});
it('should throw an error when receiver is not an object:', function() {
(function() {
cu.copy('foo');
}).should.throw('expected receiving object to be an object.');
});
it('should throw an error when provider is not an object:', function() {
(function() {
cu.copy({}, 'foo');
}).should.throw('expected providing object to be an object.');
});
});
describe('inherit', function() {
it('should inherit descriptors from provider:', function() {
var proto = App.prototype;
var obj = {};
cu.inherit(obj, proto);
assert.contains(cu.getDescriptor(obj, 'count'), ['get', 'set']);
});
it('should inherit properties from provider:', function() {
var proto = App.prototype;
var obj = {};
cu.inherit(obj, proto);
obj.set('a', 'b');
assert(obj.a === 'b');
assert.contains(obj, ['get', 'set', 'del']);
});
it('should do nothing when the property does not exist:', function() {
var proto = App.prototype;
var obj = {};
cu.inherit(obj, proto, 'foo');
assert.deepEqual(obj, {});
});
it('should throw an error when receiver is not an object:', function() {
(function() {
cu.inherit('foo');
}).should.throw('expected receiving object to be an object.');
});
it('should throw an error when provider is not an object:', function() {
(function() {
cu.inherit({}, 'foo');
}).should.throw('expected providing object to be an object.');
});
});
describe('extend', function() {
var Parent;
var Ctor;
var proto;
beforeEach(function() {
Parent = function() {}
Parent.foo = 'bar';
Parent.prototype.a = function() {};
Parent.prototype.b = function() {};
Parent.prototype.c = function() {};
Object.defineProperty(Parent.prototype, 'count', {
get: function() {
return Object.keys(this).length;
},
set: function() {}
});
Ctor = function() {
Parent.call(this);
};
proto = App.prototype;
});
it('should add `Parent.prototype` to `Ctor` instances as `_parent_`', function() {
var extend = cu.extend(Parent);
var instance1 = new Ctor();
assert.equal(typeof instance1._parent_, 'undefined');
extend(Ctor);
var instance2 = new Ctor();
assert.equal(typeof instance2._parent_, 'object');
assert.deepEqual(instance2._parent_, Parent.prototype);
});
it('should access `Parent` methods through `_parent_`', function() {
Parent.prototype.upper = function(str) {
return str.toUpperCase();
};
var extend = cu.extend(Parent);
extend(Ctor);
var instance = new Ctor();
assert.equal(instance.upper('foo'), 'FOO');
instance.upper = function(str) {
return str;
};
assert.equal(instance.upper('foo'), 'foo');
instance.upper = function(str) {
return this._parent_.upper(str) + ' ' + str;
};
assert.equal(instance.upper('foo'), 'FOO foo');
});
it('should add static methods to Ctor:', function() {
var extend = cu.extend(Parent);
extend(Ctor);
assert(typeof Ctor.extend === 'function');
assert(Ctor.foo === 'bar');
});
it('should add prototype methods to Ctor:', function() {
var extend = cu.extend(Parent);
extend(Ctor);
assert(typeof Ctor.prototype.a === 'function');
assert(typeof Ctor.prototype.b === 'function');
assert(typeof Ctor.prototype.c === 'function');
});
it('should add descriptors to Ctor:', function() {
var extend = cu.extend(Parent);
extend(Ctor);
});
it('should copy prototype properties to Ctor:', function() {
var extend = cu.extend(Parent);
extend(Ctor, App.prototype);
assert(typeof Ctor.prototype.get === 'function');
assert(typeof Ctor.prototype.set === 'function');
assert(typeof Ctor.prototype.del === 'function');
});
it('should add a mixin method to the prototype of Ctor using `extend` function:', function() {
var extend = cu.extend(Parent, function(Child) {
Child.prototype.mixin = function(key, val) {
Child.prototype[key] = val;
};
});
extend(Ctor, App.prototype);
assert(typeof Ctor.prototype.mixin === 'function');
assert(typeof Ctor.prototype.get === 'function');
assert(typeof Ctor.prototype.set === 'function');
assert(typeof Ctor.prototype.del === 'function');
});
it('should mixin methods to the Ctor.prototype using `extend` function:', function() {
var extend = cu.extend(Parent, function(Child) {
Child.prototype.mixin = function(key, val) {
Child.prototype[key] = val;
};
});
extend(Ctor, App.prototype);
var app = new Ctor();
app.mixin('foo', function() {});
assert.equal(typeof Ctor.prototype.foo, 'function');
});
it('should throw an error when Parent is not a function:', function() {
(function() {
cu.extend('foo');
}).should.throw('expected Parent to be a function.');
});
it('should throw an error when Ctor is not a function:', function() {
(function() {
cu.extend(function Foo() {})('bar')
}).should.throw('expected Ctor to be a function.');
});
});