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Dominic / pull-stream



Tree: 4030fd72088498cc22acca950c4a1bb121937cc0

Files: 4030fd72088498cc22acca950c4a1bb121937cc0 / test / drain-abort.js

1313 bytesRaw
1var pull = require('..')
2
3var tape = require('tape')
4
5tape('abort on drain', function (t) {
6
7 var c = 100
8 var drain = pull.drain(function () {
9 if(c < 0) throw new Error('stream should have aborted')
10 if(!--c) return false //drain.abort()
11 }, function () {
12 t.end()
13 })
14
15 pull(pull.infinite(), drain)
16
17})
18
19
20function delay () {
21 return pull.asyncMap(function (e, cb) {
22 setTimeout(function () { cb(null, e) })
23 })
24}
25
26tape('abort on drain - async', function (t) {
27
28 var c = 100
29 var drain = pull.drain(function () {
30 if(c < 0) throw new Error('stream should have aborted')
31 if(!--c) return drain.abort()
32 }, function () {
33 t.end()
34 })
35
36 pull(pull.infinite(), delay(), drain)
37
38})
39
40tape('abort on drain - sync', function (t) {
41
42 var c = 100
43 var drain = pull.drain(function () {
44 if(c < 0) throw new Error('stream should have aborted')
45 if(!--c) return drain.abort()
46 }, function () {
47 t.end()
48 })
49
50 pull(pull.infinite(), drain)
51
52})
53
54
55tape('abort on drain - async, out of cb', function (t) {
56
57 var c = 0, ERR = new Error('test ABORT')
58 var drain = pull.drain(function () {
59 --c
60 }, function (err) {
61 t.ok(c < 0)
62 t.equal(err, ERR)
63 t.end()
64 })
65
66 pull(pull.infinite(), delay(), drain)
67
68 setTimeout(function () {
69 drain.abort(ERR)
70 }, 100)
71
72})
73
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