File: cover.js

package info (click to toggle)
node-lie 3.3.0%2Bdfsg-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, sid, trixie
  • size: 352 kB
  • sloc: javascript: 3,392; makefile: 2
file content (671 lines) | stat: -rw-r--r-- 18,449 bytes parent folder | download | duplicates (2)
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
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
'use strict';
var aplus = require('promises-aplus-tests');
var Promise = require('../lib');
var adapter = {};
var assert = require('assert');

adapter.deferred = function () {
  var pending = {};
  pending.promise = new Promise(function (resolver, reject) {
    pending.resolve = resolver;
    pending.reject = reject;
  });
  return pending;
};
adapter.resolved = function (value) {
  return Promise.resolve(value);
}
adapter.rejected = function (reason) {
  return Promise.reject(reason);
}

describe('Lie', function () {
  it('should work resolving a promise new', function (done) {
    new Promise(function (resolve) {
      resolve(new Promise(function (resolve) {
        resolve(true);
      }));
    }).then(function (result) {
      if (result === true) {
        done();
      } else {
        done(true);
      }
    });
  });
  it('should throw if you don\'t pass a function', function (done) {
    try {
      new Promise(true);
    } catch (e) {
      if (e instanceof TypeError) {
        done();
      } else {
        done(e);
      }
    }
  });
  it('should have a working catch method', function (done) {
    new Promise(function () {
      throw new Error('boom');
    }).catch(function () {
      done();
    });
  });
  describe('resolve', function () {
    it('should work with true', function (done) {
      Promise.resolve(true).then(function (value) {
        if (value === true) {
          done();
        } else {
          done(true);
        }
      });
    });
    it('should work with false', function (done) {
      Promise.resolve(false).then(function (value) {
        if (value === false) {
          done();
        } else {
          done(true);
        }
      });
    });
    it('should work with null', function (done) {
      Promise.resolve(null).then(function (value) {
        if (value === null) {
          done();
        } else {
          done(true);
        }
      });
    });
    it('should work with undefined', function (done) {
      Promise.resolve(undefined).then(function (value) {
        if (value === undefined) {
          done();
        } else {
          done(true);
        }
      });
    });
    it('should work with 0', function (done) {
      Promise.resolve(0).then(function (value) {
        value++;
        return Promise.resolve(0);
      }).then(function (value) {
        if (value === 0) {
          done();
        } else {
          done(true);
        }
      });
    });
    it('should work with 1', function (done) {
      Promise.resolve(1).then(function (value) {
        if (value === 1) {
          done();
        } else {
          done(true);
        }
      });
    });
    it('should work with \'\'', function (done) {
      Promise.resolve('').then(function (value) {
        if (value === '') {
          done();
        } else {
          done(true);
        }
      });
    });
    it('should work with \'something\'', function (done) {
      Promise.resolve('something').then(function (value) {
        if (value === 'something') {
          done();
        } else {
          done(true);
        }
      });
    });
  });
  describe('Promise.all', function () {
    //https://github.com/domenic/promises-unwrapping/blob/master/reference-implementation/test/all.js
    it('fulfills if passed an empty array', function (done) {
      var iterable = [];

      Promise.all(iterable).then(function (value) {
        assert(Array.isArray(value));
        assert.deepEqual(value, []);
        done();
      });
    });

    it('fulfills if passed an array of mixed fulfilled promises and values', function (done) {
      var iterable = [0, Promise.resolve(1), 2, Promise.resolve(3)];

      Promise.all(iterable).then(function (value) {
        assert(Array.isArray(value));
        assert.deepEqual(value, [0, 1, 2, 3]);
        done();
      });
    });

    it('rejects if any passed promise is rejected', function (done) {
      var foreverPending = new Promise(function () {});
      var error = new Error('Rejected');
      var rejected = Promise.reject(error);

      var iterable = [foreverPending, rejected];

      Promise.all(iterable).then(
        function (value) {
          assert(false, 'should never get here');
          done();
        },
        function (reason) {
          assert.strictEqual(reason, error);
          done();
        }
      );
    });

    it('resolves foreign thenables', function (done) {
      var normal = Promise.resolve(1);
      var foreign = { then: function (f) { f(2); } };

      var iterable = [normal, foreign];

      Promise.all(iterable).then(function (value) {
        assert.deepEqual(value, [1, 2]);
        done();
      });
    });

    it('does not reject twice', function (done) {
      var normal = Promise.resolve(1);
      var error = new Error('rejected once');
      var two = Promise.reject(error);
      var three = new Promise(function (resolve, reject) {
        setTimeout(function () {
          reject(new Error('rejected twice'));
        }, 30);
      });

      var iterable = [normal, two, three];

      Promise.all(iterable).then(function (value) {
          assert(false, 'should never get here');
          done();
        }, function (value) {
        assert.deepEqual(value, error);
        done();
      });
    });

    it('fulfills when passed an sparse array, giving `undefined` for the omitted values', function (done) {
      var iterable = [Promise.resolve(0), , , Promise.resolve(1)];

      Promise.all(iterable).then(function (value) {
        assert.deepEqual(value, [0, undefined, undefined, 1]);
        done();
      });
    });

    it('does not modify the input array', function (done) {
      var input = [0, 1];
      var iterable = input;

      Promise.all(iterable).then(function (value) {
        assert.notStrictEqual(input, value);
        done();
      });
    });


    it('should reject with a TypeError if given a non-iterable', function (done) {
      var notIterable = {};

      Promise.all(notIterable).then(
        function () {
          assert(false, 'should never get here');
          done();
        },
        function (reason) {
          assert(reason instanceof TypeError);
          done();
        }
      );
    });
  });
 describe('Promise.race', function () {
    //https://github.com/domenic/promises-unwrapping/blob/master/reference-implementation/test/all.js
    function delay(value, time, rejectIt) {
      return new Promise(function (resolve, reject) {
        setTimeout(function () {
          if (rejectIt) {
            return reject(value);
          }
          resolve(value);
        }, time);
      });
    }
    it('fulfills if passed an empty array', function (done) {
      var iterable = [];

      Promise.race(iterable).then(function (value) {
        assert(Array.isArray(value));
        assert.deepEqual(value, []);
        done();
      });
    });

    it('fulfills if passed an array of mixed fulfilled promises and values', function (done) {
      var iterable = [delay(0, 20), Promise.resolve(1), delay(2, 30), delay(Promise.resolve(3), 20)];

      Promise.race(iterable).then(function (value) {
        assert.equal(value, 1);
        done();
      });
    });

    it('rejects if firsed resolved promise is rejected', function (done) {
      var error = new Error('Rejected');

      var iterable = [delay(true, 300), delay(error, 20, true)];

      Promise.race(iterable).then(
        function (value) {
          assert(false, 'should never get here');
          done();
        },
        function (reason) {
          assert.strictEqual(reason, error);
          done();
        }
      );
    });

    it('resolves if second resolved promise is rejected', function (done) {
      var error = new Error('Rejected');

      var iterable = [delay(true, 30), delay(error, 200, true)];

      Promise.race(iterable).then(
        function (value) {
          assert(value, 'should resolve');
          done();
        },
        function (reason) {
          assert(false, 'should never get here');
          done();
        }
      );
    });

    it('resolves foreign thenables', function (done) {
      var normal = Promise.resolve(1);
      var foreign = { then: function (f) { f(2); } };

      var iterable = [delay(Promise.resolve(1), 200), foreign];

      Promise.race(iterable).then(function (value) {
        assert.deepEqual(value, 2);
        done();
      });
    });

    it('fulfills when passed an sparse array, giving `undefined` for the omitted values', function (done) {
      var iterable = [delay(Promise.resolve(0), 300), , , delay(Promise.resolve(1), 300)];

      Promise.race(iterable).then(function (value) {
        assert.equal(value, undefined);
        done();
      });
    });



    it('should reject with a TypeError if given a non-iterable', function (done) {
      var notIterable = {};

      Promise.race(notIterable).then(
        function () {
          assert(false, 'should never get here');
          done();
        },
        function (reason) {
          assert(reason instanceof TypeError);
          done();
        }
      );
    });
  });
  /*
  if (!process.browser) {
    it('should emit events for unhandled errors', function (done) {
      var called = 0;
      var err1 = new Error('should be caught');

      var err2 = new Error('should be uncaught');
      var promise1 = Promise.reject(err1);
      var promise2 = Promise.reject(err2);
      promise1.catch(function () {});
      function onEvent(reason, promise) {
        if (!called) {
          called++;
          assert.equal(err2, reason);
          assert.equal(promise2, promise);
          setTimeout(function (){
            process.removeListener('unhandledRejection', onEvent);
            done();
          }, 100)
        } else {
          done(new Error('called more then once'));
        }
      }
      process.on('unhandledRejection', onEvent);
    });
  }
  */
  describe('Promises/A+ Tests', function () {
    aplus.mocha(adapter);
  });
});
var P = Promise;
var someRejectionReason = { message: 'some rejection reason' };
var anotherReason = { message: 'another rejection reason' };
describe('mocha promise sanity check', function () {
	it('passes with a resolved promise', function () {
		return P.resolve(3);
	});

	it('passes with a rejected then resolved promise', function () {
		return P.reject(someRejectionReason).catch(function (x) {
      return 'this should be resolved';
    });
	});

    var ifPromiseIt = P === Promise ? it : it.skip;
	ifPromiseIt('is the native Promise', function () {
		assert.equal(P, Promise);
	});
});
describe('onFinally', function () {
	describe('no callback', function () {
		specify('from resolved', function () {
			return adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally()
				.then(function onFulfilled(x) {
					assert.strictEqual(x, 3);
				}, function onRejected() {
					throw new Error('should not be called');
				});
		});

		specify('from rejected', function () {
			return adapter.rejected(someRejectionReason)
				.catch(function (e) {
					assert.strictEqual(e, someRejectionReason);
					throw e;
				})
				.finally()
				.then(function onFulfilled() {
					throw new Error('should not be called');
				}, function onRejected(reason) {
					assert.strictEqual(reason, someRejectionReason);
				});
		});
	});

	describe('throws an exception', function () {
		specify('from resolved', function () {
			return adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					throw someRejectionReason;
				}).then(function onFulfilled() {
					throw new Error('should not be called');
				}, function onRejected(reason) {
					assert.strictEqual(reason, someRejectionReason);
				});
		});

		specify('from rejected', function () {
			return adapter.rejected(anotherReason).finally(function onFinally() {
				assert(arguments.length === 0);
				throw someRejectionReason;
			}).then(function onFulfilled() {
				throw new Error('should not be called');
			}, function onRejected(reason) {
				assert.strictEqual(reason, someRejectionReason);
			});
		});
	});

	describe('returns a non-promise', function () {
		specify('from resolved', function () {
			return adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					return 4;
				}).then(function onFulfilled(x) {
					assert.strictEqual(x, 3);
				}, function onRejected() {
					throw new Error('should not be called');
				});
		});

		specify('from rejected', function () {
			return adapter.rejected(anotherReason)
				.catch(function (e) {
					assert.strictEqual(e, anotherReason);
					throw e;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					throw someRejectionReason;
				}).then(function onFulfilled() {
					throw new Error('should not be called');
				}, function onRejected(e) {
					assert.strictEqual(e, someRejectionReason);
				});
		});
	});

	describe('returns a pending-forever promise', function () {
		specify('from resolved', function (done) {
			adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					setTimeout(done, 0.1e3);
					return new P(function () {}); // forever pending
				}).then(function onFulfilled(x) {
					throw new Error('should not be called');
				}, function onRejected() {
					throw new Error('should not be called');
				});
		});

		specify('from rejected', function (done) {
			adapter.rejected(someRejectionReason)
				.catch(function (e) {
					assert.strictEqual(e, someRejectionReason);
					throw e;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					setTimeout(done, 0.1e3);
					return new P(function () {}); // forever pending
				}).then(function onFulfilled(x) {
					throw new Error('should not be called');
				}, function onRejected() {
					throw new Error('should not be called');
				});
		});
	});

	describe('returns an immediately-fulfilled promise', function () {
		specify('from resolved', function () {
			return adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					return adapter.resolved(4);
				}).then(function onFulfilled(x) {
					assert.strictEqual(x, 3);
				}, function onRejected() {
					throw new Error('should not be called');
				});
		});

		specify('from rejected', function () {
			return adapter.rejected(someRejectionReason)
				.catch(function (e) {
					assert.strictEqual(e, someRejectionReason);
					throw e;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					return adapter.resolved(4);
				}).then(function onFulfilled() {
					throw new Error('should not be called');
				}, function onRejected(e) {
					assert.strictEqual(e, someRejectionReason);
				});
		});
	});

	describe('returns an immediately-rejected promise', function () {
		specify('from resolved ', function () {
			return adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					return adapter.rejected(4);
				}).then(function onFulfilled(x) {
					throw new Error('should not be called');
				}, function onRejected(e) {
					assert.strictEqual(e, 4);
				});
		});

		specify('from rejected', function () {
			var newReason = {};
			return adapter.rejected(someRejectionReason)
				.catch(function (e) {
					assert.strictEqual(e, someRejectionReason);
					throw e;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					return adapter.rejected(newReason);
				}).then(function onFulfilled(x) {
					throw new Error('should not be called');
				}, function onRejected(e) {
					assert.strictEqual(e, newReason);
				});
		});
	});

	describe('returns a fulfilled-after-a-second promise', function () {
		specify('from resolved', function (done) {
			adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					setTimeout(done, 1.5e3);
					return new P(function (resolve) {
						setTimeout(function () {resolve(4)}, 1e3);
					});
				}).then(function onFulfilled(x) {
					assert.strictEqual(x, 3);
				}, function onRejected() {
					throw new Error('should not be called');
				});
		});

		specify('from rejected', function (done) {
			adapter.rejected(3)
				.catch(function (e) {
					assert.strictEqual(e, 3);
					throw e;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					setTimeout(done, 1.5e3);
					return new P(function (resolve) {
						setTimeout(function () {resolve(4)}, 1e3);
					});
				}).then(function onFulfilled() {
					throw new Error('should not be called');
				}, function onRejected(e) {
					assert.strictEqual(e, 3);
				});
		});
	});

	describe('returns a rejected-after-a-second promise', function () {
		specify('from resolved', function (done) {
			adapter.resolved(3)
				.then(function (x) {
					assert.strictEqual(x, 3);
					return x;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					setTimeout(done, 1.5e3);
					return new P(function (resolve, reject) {
						setTimeout(function (){ reject(4)}, 1e3);
					});
				}).then(function onFulfilled(x) {
					assert.strictEqual(x, 3);
				}, function onRejected() {
					throw new Error('should not be called');
				});
		});

		specify('from rejected', function (done) {
			adapter.rejected(someRejectionReason)
				.catch(function (e) {
					assert.strictEqual(e, someRejectionReason);
					throw e;
				})
				.finally(function onFinally() {
					assert(arguments.length === 0);
					setTimeout(done, 1.5e3);
					return new P(function (resolve, reject) {
						setTimeout(function (){ reject(anotherReason)}, 1e3);
					});
				}).then(function onFulfilled() {
					throw new Error('should not be called');
				}, function onRejected(e) {
					assert.strictEqual(e, anotherReason);
				});
		});
	});
});