1 var test = require('tape')
2 var through = require('../')
4 // must emit end before close.
6 test('buffering', function(assert) {
7 var ts = through(function (data) {
13 var ended = false, actual = []
15 ts.on('data', actual.push.bind(actual))
16 ts.on('end', function () {
23 assert.deepEqual(actual, [1, 2, 3])
28 assert.deepEqual(actual, [1, 2, 3])
30 assert.deepEqual(actual, [1, 2, 3, 4, 5, 6])
39 test('buffering has data in queue, when ends', function (assert) {
42 * If stream ends while paused with data in the queue,
43 * stream should still emit end after all data is written
47 var ts = through(function (data) {
53 var ended = false, actual = []
55 ts.on('data', actual.push.bind(actual))
56 ts.on('end', function () {
65 assert.deepEqual(actual, [], 'no data written yet, still paused')
66 assert.ok(!ended, 'end not emitted yet, still paused')
68 assert.deepEqual(actual, [1, 2, 3], 'resumed, all data should be delivered')
69 assert.ok(ended, 'end should be emitted once all data was delivered')