test.js
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var tape = require('tape')
var through = require('through2')
var each = require('./')
tape('each', function (t) {
var s = through.obj()
s.write('a')
s.write('b')
s.write('c')
s.end()
s.on('end', function () {
t.end()
})
var expected = ['a', 'b', 'c']
each(s, function (data, next) {
t.same(data, expected.shift())
next()
})
})
tape('each and callback', function (t) {
var s = through.obj()
s.write('a')
s.write('b')
s.write('c')
s.end()
var expected = ['a', 'b', 'c']
each(s, function (data, next) {
t.same(data, expected.shift())
next()
}, function () {
t.end()
})
})
tape('each (write after)', function (t) {
var s = through.obj()
s.on('end', function () {
t.end()
})
var expected = ['a', 'b', 'c']
each(s, function (data, next) {
t.same(data, expected.shift())
next()
})
setTimeout(function () {
s.write('a')
s.write('b')
s.write('c')
s.end()
}, 100)
})
tape('each error', function (t) {
var s = through.obj()
s.write('hello')
s.on('error', function (err) {
t.same(err.message, 'stop')
t.end()
})
each(s, function (data, next) {
next(new Error('stop'))
})
})
tape('each error and callback', function (t) {
var s = through.obj()
s.write('hello')
each(s, function (data, next) {
next(new Error('stop'))
}, function (err) {
t.same(err.message, 'stop')
t.end()
})
})
tape('each with falsey values', function (t) {
var s = through.obj()
s.write(0)
s.write(false)
s.write(undefined)
s.end()
s.on('end', function () {
t.end()
})
var expected = [0, false]
var count = 0
each(s, function (data, next) {
count++
t.same(data, expected.shift())
next()
}, function () {
t.same(count, 2)
})
})
tape('huge stack', function (t) {
var s = through.obj()
for (var i = 0; i < 5000; i++) {
s.write('foo')
}
s.end()
each(s, function (data, cb) {
if (data !== 'foo') t.fail('bad data')
cb()
}, function (err) {
t.error(err, 'no error')
t.end()
})
})