File: test.js

package info (click to toggle)
node-tap 12.0.1+ds-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 3,916 kB
  • sloc: makefile: 84; sh: 75
file content (874 lines) | stat: -rw-r--r-- 24,257 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
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
'use strict'
const t = require('../')
const fs = require('fs')
const path = require('path')
const Test = t.Test
const util = require('util')
const assert = require('assert')
const EE = require('events').EventEmitter
const MiniPass = require('stream').PassThrough

// set this forcibly so it doesn't interfere with other tests.
process.env.TAP_DIAG = ''
process.env.TAP_BAIL = ''

const clean = require('./clean-stacks.js')

t.test('short output checks', t => {
  const env = process.env.TAP_BUFFER
  delete process.env.TAP_BUFFER
  t.teardown(_ => process.env.TAP_BUFFER = env)

  const cases = {
    'no plan': tt => {
      tt.pass('this is fine')
      tt.end()
    },

    'plan': tt => {
      tt.plan(1)
      tt.pass('this is fine')
    },

    'comment': tt => {
      tt.comment('this is fine')
      tt.end()
    },

    'pragma': tt => {
      tt.pragma({ strict: true })
      tt.pragma({ strict: false })
      tt.end()
    },

    'todo': tt => {
      tt.notOk(true, 'i will do this later', { todo: true })
      tt.notOk(true, { todo: 'later' })
      tt.notOk(false)
      tt.todo('i will do this later', tt => {
        throw 'oh no'
      })
      tt.ok(false, { message: 'this is fine', skip: true })
      tt.skip('i did not do this later', tt => {
        throw 'oops'
      })
      tt.end()
    },

    'only': tt => {
      tt.runOnly = false
      tt.only('run this with a comment', tt => tt.end())
      tt.test('this is a child test', tt => tt.end())
      tt.test('run this with a comment', { only: true },
              tt => tt.end())
      tt.end()
    },

    'no plan fail': tt => {
      tt.fail('this is fine', { diagnostic: false })
      tt.fail({ todo: true })
      tt.fail('this is fine')
      tt.end()
    },

    'plan fail': tt => {
      tt.plan(1, 'expect some failure here')
      tt.fail('this is fine', { diagnostic: false })
    },

    'fail then end': tt => {
      tt.test('child', tt => {
        tt.fail('this is not ok')
        tt.end()
      })
      tt.end()
    },

    'planned skip': tt => {
      tt.plan(0, 'skip this one')
    },

    'multi-plan throws': tt => {
      tt.plan(1)
      tt.throws(() => tt.plan(1))
    },

    'negative plan throws': tt => {
      tt.throws(() => tt.plan(-1))
      tt.end()
    },

    'expect fail': tt => {
      tt.plan(1)
      tt.fail('this is fine', { expectFail: true })
    },

    'sub': tt => {
      tt.test('named child', { buffered: true }, tt => {
        tt.pass('this is fine')
        tt.pass()
        tt.pass({ todo: true })
        tt.end()
      })
      tt.test(function named_function (tt) {
        tt.plan(1)
        tt.pass('also fine')
      })
      tt.test('promisey', tt => new Promise(resolve => {
        tt.pass('i promise, it is fine')
        resolve()
      }))
      tt.end()
    },

    'parallel sub': tt => {
      tt.jobs = 2
      tt.plan(2)
      let slowGoing = true
      tt.test('slow child', tt => setTimeout(_ => {
        slowGoing = false
        tt.end()
      }, 100))
      tt.test('fast child', tt => setTimeout(_ => {
        tt.ok(slowGoing, 'slow is going')
        tt.end()
      }))
    },

    'reasoned bailout': tt => {
      tt.test(tt => {
        tt.pass('this is fine')
        tt.bailout('not fine')
      })
      tt.end()
    },

    'unreasonable bailout': tt => {
      tt.test(tt => {
        tt.pass('this is fine')
        tt.bailout()
      })
      tt.end()
    },

    'bailout after end': tt => {
      tt.test(tt => {
        tt.pass('this is fine')
        tt.end()
        tt.bailout('not fine')
      })
      tt.end()
    },

    'diags': tt => {
      tt.pass('has diags', { diagnostic: true, foo: 1 })
      tt.fail('fails without diag', { diagnostic: false, foo: 1 })
      process.env.TAP_DIAG = '1'
      tt.pass('has diags', { foo: 1 })
      tt.fail('fails without diag', { diagnostic: false, foo: 1 })
      process.env.TAP_DIAG = '0'
      tt.pass('has diags', { diagnostic: true, foo: 1 })
      tt.fail('fails without diag', { foo: 1 })
      process.env.TAP_DIAG = ''
      tt.end()
    },

    // _actually_ throwing is only handled by root TAP test
    // using a Domain to catch beyond async stack drops
    'gentle thrower': tt => tt.threw(new Error('ok')),
    'child thrower': tt => tt.test('child test', tt =>
      tt.threw(new Error('ok'))).then(tt.end),

    /*
    'child end event thrower': tt => {
      tt.test(tt => {
        tt.plan(1)

        tt.on('end', function () {
          tt.comment('end() event')
          throw new Error('beep')
        })

        tt.equal(3, 3)
      })
      tt.end()
    }*/
  }

  const keys = Object.keys(cases)
  t.plan(keys.length)

  for (let i in cases) {
    t.test(i, t => {
      const go = (t, tt) => new Promise(resolve => {
        let out = ''
        tt.on('data', c => out += c)
        let didIt = false
        const done = reason => {
          // make sure we don't test on BOTH bailout and end
          // as that is unnecessary
          if (didIt)
            return
          didIt = true

          if (tt.output)
            out = tt.output

          if (reason)
            out = out.trim() + '\nBAILOUT: ' + JSON.stringify(reason)

          t.matchSnapshot(clean(out), i)
          resolve()
        }
        tt.on('end', done)
        tt.on('bailout', done)
        cases[i](tt)
      })

      t.test('no options', t =>
        go(t, new Test()))
      t.test('buffered', t =>
        go(t, new Test({ buffered: true })))
      t.test('bailout', t =>
        go(t, new Test({ bail: true })))
      t.test('runOnly', t =>
        go(t, new Test({ runOnly: true })))
      t.end()
    })
  }
})

t.test('assertions and weird stuff', t => {
  const env = process.env.TAP_BUFFER
  process.env.TAP_BUFFER = '0'
  t.teardown(_ => process.env.TAP_BUFFER = env)

  const cases = {
    'error': tt => {
      tt.error(null, 'this is not an error')
      tt.error(new Error('fail: poop'), 'this error is poop')
      tt.error(new Error('fail: poop'))
      tt.error('fail: poop', 'this error is "poop"')
      tt.error('fail: poop')
      tt.error(null, { todo: true })
      tt.error(null)
      tt.end()
    },

    equal: tt => {
      tt.equal(1, 2)
      tt.equal(1, '1', { skip: true })
      tt.equal(1, 1, 'one is one')
      // fails, but with the special note
      tt.equal({foo: 1}, {foo: 1})
      tt.end()
    },

    not: tt => {
      tt.not(1, 2)
      tt.not(1, '1', { skip: true })
      tt.not(1, 1, 'one is not one')
      tt.not({}, {})
      tt.end()
    },

    same: tt => {
      const o = { foo: 1 }
      tt.same([1, 2, 3], ['1', '2', '3'])
      tt.same(o, o)
      tt.same({ foo: 1 }, { foo: 1 }, 'object exactness')
      tt.same({ foo: 2 }, { foo: 1 }, { skip: true })
      tt.notSame({ foo: 2 }, { foo: 1 }, 'this one passes')
      tt.notSame({ foo: 2 }, { foo: 1 }, { skip: true })
      tt.notSame({ foo: { bar: 2 } }, { foo: { bar: '2' } },
                 'this one fails')

      tt.strictSame({ foo: 2 }, { foo: 1 }, { skip: true })
      tt.strictSame([1, 2, 3], ['1', '2', '3'])
      tt.strictSame(o, { foo: 1 })
      tt.strictSame(o, o)
      tt.notStrictSame({ foo: 2 }, { foo: 1 }, { skip: true })
      tt.notStrictSame({ foo: 2 }, { foo: 1 }, 'this one passes')
      tt.notStrictSame({ foo: { bar: 2 } }, { foo: { bar: '2' } },
                       'this one passes')
      tt.notStrictSame({ foo: { bar: 2 } }, { foo: { bar: 2 } },
                       'this one fails')

      tt.end()
    },

    match: tt => {
      tt.match({ a: 'b', c: /asdf/ }, { a: String, c: RegExp })
      tt.match({ a: 'b', c: /asdf/ }, { a: 'asdf', c: 1 })
      tt.match({ a: 'b', c: /asdf/ }, { a: String, c: RegExp },
               'a message')
      tt.match({ a: 'b', c: /asdf/ }, { a: 'asdf', c: 1 },
               { todo: true })
      tt.notMatch({ a: 'b', c: /asdf/ }, { a: String, c: RegExp })
      tt.notMatch({ a: 'b', c: /asdf/ }, { a: 'asdf', c: 1 })
      tt.notMatch({ a: 'b', c: /asdf/ }, { a: String, c: RegExp },
                  'a message')
      tt.notMatch({ a: 'b', c: /asdf/ }, { a: 'asdf', c: 1 },
                  { todo: true })

      tt.end()
    },

    type: tt => {
      tt.type(null, 'object', 'this fails')
      tt.type(null, 'object', { expectFail: true })
      tt.type(1234, 'number')
      tt.type(tt, Test)
      tt.type({}, function () {}, 'fails, anonymously')
      const o = {}
      tt.type(o, o, 'a thing is a thing')
      tt.type(() => {}, 'function', 'arrows are functions')
      tt.type(() => {}, Function, 'arrows are functions')
      tt.type(() => {}, Object, 'fail: arrows are not objects')
      tt.type({}, 'object')
      tt.type(tt, 'Test')
      tt.type(tt, 'EventEmitter')
      tt.end()
    },

    throws: tt => {
      tt.throws(() => { throw new TypeError('x') }, TypeError)
      tt.throws(() => { throw new TypeError('x') }, TypeError)
      tt.throws(() => { throw new TypeError('x') },
                new TypeError('x'))
      tt.throws(() => { throw new TypeError('x') },
                { message: 'x' })

      const nameless = new Error('x')
      Object.defineProperty(nameless, 'name', {
        value: undefined
      })
      nameless.stack = /^.*$/
      tt.throws(() => { throw new Error('x') }, nameless)
      tt.throws(() => { throw nameless }, { message: 'x' })
      tt.throws(() => { throw nameless }, /^.$/)
      tt.throws(() => { throw nameless })

      const prop = new Error('noent')
      prop.code= 'ENOENT'
      tt.throws(() => {
        const er = new Error('noent')
        er.code = 'ENOENT'
        er.path = __filename
        throw er
      }, prop)

      tt.throws(() => 'doesnt tho', 'fail: does not throw actually')

      tt.throws(() => { throw new Error('x') }, {}, { skip: true })
      tt.throws(() => { throw new Error('x') }, {},
                {}, {}, 1)
      tt.throws(() => { throw new Error('x') },
                () => {}, () => {}, () => {},
                'extra functions are no-ops for bw comp')
      tt.throws('todo')
      tt.end()
    },

    doesNotThrow: tt => {
      tt.doesNotThrow(() => {}, 'this is fine')
      tt.doesNotThrow(() => {}, { todo: true })
      tt.doesNotThrow('reverse args', () => {})
      tt.doesNotThrow('this is todo')
      tt.doesNotThrow('fail', () => {
        throw new Error('ouch')
      })
      tt.end()
    },

    rejects: tt => {
      tt.rejects('promise', new Promise((_, reject) => {
        reject(new Error('expected'))
      }))
      tt.rejects(() => new Promise((_, reject) => {
        reject(new Error('expected'))
      }), 'fn returns promise')
      tt.rejects(new Promise((_, reject) => {
        reject(new Error('expected'))
      }))
      tt.rejects(() => new Promise((_, reject) => {
        reject(new Error('expected'))
      }))
      tt.rejects('todo because no fn/promise', { foo: 'bar' })
      tt.comment('next 2 also todo, no message')
      tt.rejects({ x: 1 })
      tt.rejects()
      tt.rejects(() => new Promise((_, reject) => {
        reject(new Error('expected'))
      }), new Error('expected'), 'throws expected error')
      tt.rejects(() => new Promise((_, reject) => {
        reject(new TypeError('expected'))
      }), TypeError, 'throws expected error type')
      tt.rejects(() => new Promise((_, reject) => {
        reject(new TypeError('expected'))
      }), TypeError, ()=>{}, _=>_, 'extra functions are no-ops')
      tt.rejects(() => new Promise((_, reject) => {
        reject(new TypeError('expected'))
      }), TypeError, 1, 2, {}, {}, 'extra args are no-ops')

      const prop = new Error('noent')
      prop.code= 'ENOENT'
      tt.rejects(new Promise((_, reject) => {
        const er = new Error('noent')
        er.code = 'ENOENT'
        er.path = __filename
        reject(er)
      }), prop)

      const nameless = new Error('x')
      Object.defineProperty(nameless, 'name', {
        value: undefined
      })
      nameless.stack = /^.*$/
      tt.rejects(new Promise((_,r) => r(new Error('x'))), nameless)
      tt.rejects(new Promise((_,r) => r(nameless)), { message: 'x' })
      tt.rejects(new Promise((_,r) => r(nameless)), /^.$/)
      tt.rejects(new Promise((_,r) => r(nameless)))

      tt.rejects(() => {}, 'fail: no promise')
      tt.rejects(() => ({}), 'fail: no promise')

      tt.rejects(new Promise(r => r(420)), 'fail: passing promise')

      tt.end()
    },

    resolves: tt => {
      tt.resolves(new Promise(r => r(420)))
      tt.resolves(new Promise(r => r(420)), { todo: true })
      tt.resolves(new Promise(r => r(420)), 'passing promise')
      tt.resolves(() => new Promise(r => r(420)), 'passing promise fn')
      tt.resolves(() => {}, 'fail: no promise')
      tt.end()
    },

    resolveMatch: tt => {
      tt.resolveMatch(new Promise(r => r(420)), Number)
      tt.resolveMatch(new Promise(r => r(420)), 'asdf', { todo: true })
      tt.resolveMatch(new Promise(r => r(420)), 420, 'promise')
      tt.resolveMatch(() => new Promise(r => r(420)), 420, 'promise fn')
      tt.resolveMatch(() => {}, {}, 'fail: no promise')
      tt.end()
    },

    'test after end fails': tt => {
      tt.end()
      tt.pass('failing pass')
    },

    'plan excess': tt => {
      tt.plan(1)
      tt.pass('fine')
      tt.pass('not fine')
    },

    'plan excess, ignored when failing': tt => {
      tt.plan(1)
      tt.fail('expected fail', { diagnostic: false })
      tt.pass('not fine')
    },

    'using the assertAt field': tt => {
      const stack = require('../lib/stack.js')
      const foo = () => tt.fail('expect fail')
      const bar = () => foo()
      const baz = () => { tt.assertAt = stack.at(); bar() }

      tt.plan(1)
      baz()
    },

    'using the assertStack field': tt => {
      const stack = require('../lib/stack.js')
      const foo = () => tt.fail('expect fail')
      const bar = () => foo()
      const baz = () => { tt.assertStack = stack.captureString(80); bar() }

      tt.plan(1)
      baz()
    },

    printResult: tt => {
      // super low-level
      tt.printResult(true, 'this is fine')
      tt.end()
    },

    'printResult after plan end': tt => {
      // super low-level
      tt.end()
      tt.printResult(true, 'this is fine')
    },

    'plan, child test, explicit end': tt => {
      tt.plan(1)
      tt.test(tt => Promise.resolve('ok'))
      tt.end()
    },

    'end multiple times': tt => {
      tt.plan(1)
      tt.pass('yes')
      tt.end()
      tt.end()
    },

    'error event with domainEmitter re-throws': tt => {
      const er = new Error('fail')
      const d = tt.domain
      try {
        d.run(() => {
          const e = new EE
          e.emit('error', er)
          tt.fail('did not throw')
        })
      } catch (er) {
        tt.pass('the better to this.threw you with')
        tt.end()
      }
    },

    'thrower after end': tt => {
      tt.test('child', tt => {
        tt.plan(1)
        tt.pass('this is fine')
        tt.threw(new Error('catch it in the parent'))
      })
      tt.end()
    },

    'child breaks a promise': tt => {
      tt.test('child', () => new Promise((_, r) => r(new Error('poop'))))
      tt.end()
    },

    'child teardown throw': tt => {
      tt.test('child', tt => {
        tt.teardown(() => { throw new Error('fail') })
        tt.end()
      })
      tt.end()
    },

    'fullname without main': tt => {
      const main = process.argv[1]
      process.argv[1] = ''
      tt.test('child', tt => {
        tt.pass(tt.fullname)
        tt.end()
      })
      tt.pass(tt.fullname)
      process.argv[1] = main
      tt.end()
    },

    'comment after end': tt => {
      tt.end()
      tt.comment('this is fine')
    },

    grep: tt => {
      tt.test('parent', { grep: [ /x$/, /y$/ ] }, tt => {
        tt.test('do not run this', tt => tt.threw('no'))
        tt.test('but do run this x', tt => {
          tt.test('do not run this', tt => tt.threw('stop'))
          tt.test('but do run this y', tt => {
            tt.test('grand kids', tt => tt.end())
            tt.test('get all the', tt => tt.end())
            tt.test('goodies', tt => {
              tt.pass('this is good')
              tt.end()
            })
            tt.end()
          })
          tt.end()
        })
        tt.end()
      })
      tt.end()
    },

    grepInvert: tt => {
      tt.test('parent', { grepInvert: true, grep: [ /x$/, /y$/ ] }, tt => {
        tt.test('do not run this x', tt => tt.threw('no'))
        tt.test('but do run this', tt => {
          tt.test('do not run this y', tt => tt.threw('stop'))
          tt.test('but do run this', tt => {
            tt.test('grand kids', tt => tt.end())
            tt.test('get all the', tt => tt.end())
            tt.test('goodies', tt => {
              tt.pass('this is good')
              tt.end()
            })
            tt.end()
          })
          tt.end()
        })
        tt.end()
      })
      tt.end()
    },

    autoEnd: tt => {
      tt.options.autoend = true
      tt.test('this should automatically end', { autoend: true }, t => {
        t.pass('this is fine')
        setTimeout(() => t.pass('also fine'))
      })
      tt.test('this should also end', t => {
        t.pass('this is fine')
        setTimeout(() => t.pass('also fine'))
        t.autoend()
      })
      tt.test('autoend async 1', t => {
        setTimeout(() =>
          t.test('st', t => setTimeout(() => t.end())))
        t.autoend()
      })
      tt.test('autoend async 2', t => {
        setTimeout(() => setTimeout(() =>
          t.test('st', t => setTimeout(() => t.end()))))
        t.autoend()
      })
      tt.test('autoend async limit', t => {
        setTimeout(() => setTimeout(() => setTimeout(() =>
          t.test('st', t => setTimeout(() => t.end())))))
        t.autoend()
      })

    },

    'autoend(false)': tt => {
      tt.autoend()
      tt.autoend(false)
      setTimeout(() => {
        tt.pass('this is fine')
        tt.end()
      }, 50)
    },

    'endAll with test children': tt => {
      tt.test('this is the test that never ends', tt => {
        tt.test('it goes on and on my friend', tt => {
          tt.pass('this is ok')
          tt.test('misbehaving child', () => new Promise(()=>{}))
        })
        tt.pass('some queue stuff')
      })
      tt.endAll()
    },

    'endAll with stdin': tt => {
      const s = new MiniPass()
      tt.stdin({ tapStream: s })
      s.write('TAP version 13\nok - but not ended\n')
      tt.endAll()
    },

    'endAll with bailout': tt => {
      tt.on('bailout', reason => tt.endAll())

      tt.test('child', { bail: true }, tt => {
        tt.fail('not fine')
        tt.end()
      })
    },

    'bailout with indented subs': tt => {
      tt.test('1', tt => tt.end())
      tt.test('2', tt => Promise.resolve(null))
      tt.test('3', tt => setTimeout(() => tt.end()))
      process.nextTick(() => tt.bailout('whoops'))
      tt.end()
    },

    'bailout with buffered subs': tt => {
      const o = { buffered: true }
      tt.test('1', o, tt => tt.end())
      tt.test('2', o, tt => Promise.resolve(null))
      tt.test('3', o, tt => setTimeout(() => tt.end()))
      process.nextTick(() => tt.bailout('whoops'))
      tt.end()
    },

    'silent subs': tt => {
      tt.test('child', tt => Promise.resolve(null))
      tt.test('shhh', { silent: true }, tt => tt.end())
      tt.test('child 2', tt => tt.end())
      tt.end()
    },

    'beforeEach afterEach': tt => {
      tt.beforeEach(function (cb) {
        console.error('parent be', this.name)
        cb()
      })
      tt.afterEach(function (cb) {
        console.error('parent ae', this.name)
        cb()
      })
      tt.test('child', tt => {
        tt.beforeEach(function (cb) {
          console.error('child be', this.name)
          cb()
        })
        tt.afterEach(function (cb) {
          console.error('child ae', this.name)
          cb()
        })
        tt.test('grandkid', tt => Promise.resolve(console.error('in test')))
        tt.end()
      })
      tt.end()
    },

    'timeout expiration': t => {
      const buf = [ false, true ]
      buf.forEach(buf => {
        t.test('get lost buf=' + buf, { buffered: buf, timeout: 50 }, t => {
          const timer = setTimeout(() => {}, 10000)
          t.on('timeout', () => clearTimeout(timer))
        })
      })
      t.end()
    },

    'timeout with subs': t => {
      const buf = [ false, true ]
      buf.forEach(buf => {
        t.test('get lost buf=' + buf, { buffered: buf, timeout: 50 }, t => {
          const timer = setTimeout(() => {}, 10000)
          t.test('carry on', t => t.on('timeout', () => clearTimeout(timer)))
        })
      })
      t.end()
    },

    'timeout at the last tick': t => {
      const buf = [ false, true ]
      buf.forEach(buf => {
        t.test('work it harder buf=' + buf, { buffered: buf, timeout: 1 }, t => {
          t.plan(1)
          const start = Date.now()
          const finish = start + 10
          while (finish > Date.now()) {
            fs.readFileSync(__filename)
          }
          t.pass('this is fine')
        })
      })
      t.end()
    },


  }

  const keys = Object.keys(cases)
  t.plan(keys.length)

  for (let i in cases) {
    t.test(i, t => {
      t.plan(1)

      const error = console.error
      t.teardown(() => console.error = error)
      let err = ''
      console.error = function () {
        err += util.format.apply(util, arguments) + '\n'
      }

      const tt = new Test()
      let out = ''
      tt.on('data', c => out += c)
      tt.on('end', _ => {
        setTimeout(() => {
          if (err)
            out = out.trim() + '\n' + 'STDERR:\n' + err
          t.matchSnapshot(clean(out), i)
        })
      })
      cases[i](tt)
    })
  }
})

t.test('addAssert', t => {
  t.throws(() => t.addAssert(null), new TypeError('name is required'))
  t.throws(() => t.addAssert('x'), new TypeError('number of args required'))
  t.throws(() => t.addAssert('x', -1),
           new TypeError('number of args required'))
  t.throws(() => t.addAssert('x', 1),
           new TypeError('function required for addAssert'))
  t.throws(() => t.addAssert('ok', 1, () => {}),
           new TypeError('attempt to re-define `ok` assert'))

  const url = require('url')
  const tt = new Test({ buffered: true })
  tt.addAssert('isUrl', 1, function isUrl (u, message, extra) {
    return this.match(url.parse(u), {
      protocol: /^https?:$/,
      slashes: true,
      host: String,
      path: /^\/.*$/
    }, message || 'expect a valid http/https url', extra)
  })
  tt.isUrl('hello is not a url')
  tt.isUrl('http://x', 'x is a url!')
  tt.isUrl('https://skip:420/', { skip: 420 })
  tt.end()

  t.matchSnapshot(clean(tt.output), 'using the custom isUrl assertion')
  return t.end()
})

t.test('spawn', t => {
  const okjs = path.resolve(__dirname, '../ok.test.js')
  t.teardown(() => fs.unlinkSync(okjs))
  fs.writeFileSync(okjs, "require('./').pass('this is fine')\n")
  t.spawn(process.execPath, okjs)
  t.spawn(process.execPath, okjs, 'a string as options')
  t.spawn(process.execPath, okjs, { name: 'a name as an option' })

  t.test('kitty pipe', t => {
    t.on('spawn', t =>
      t.proc.stdin.end('TAP version 13\n1..1\nok\n'))
    t.spawn('cat', [], { stdio: 'pipe' })
    t.spawn('cat', null, { stdio: 'pipe' }, 'aggreeable kitten')
    t.end()
  })

  t.end()
})

t.test('snapshots', t => {
  const Snapshot = require('../lib/snapshot.js')
  const snap = [ true, false ]
  const outputs = snap.map(snap => {
    const tt = new Test({
      snapshot: snap,
      name: 'deleteme',
      buffered: true
    })
    tt.test('child test', { snapshot: snap }, tt => {
      tt.matchSnapshot({ foo: 'bar' }, 'an object')
      tt.matchSnapshot('some string \\ \` ${process.env.FOO}', 'string')
      tt.matchSnapshot('do this eventually', { todo: 'later' })
      tt.end()
    })
    tt.emit('teardown')
    tt.end()
    return tt.output
  })

  t.matchSnapshot(clean(outputs[0]), 'saving the snapshot')
  t.matchSnapshot(clean(outputs[1]), 'verifying the snapshot')
  fs.unlinkSync(path.resolve(__dirname, '..',
    'tap-snapshots', 'test-test.js-deleteme.test.js'))

  t.end()
})