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- var tape = require('tape')
- var through = require('through2')
- var concat = require('concat-stream')
- var net = require('net')
- var duplexify = require('./')
- tape('passthrough', function(t) {
- t.plan(2)
- var pt = through()
- var dup = duplexify(pt, pt)
- dup.end('hello world')
- dup.on('finish', function() {
- t.ok(true, 'should finish')
- })
- dup.pipe(concat(function(data) {
- t.same(data.toString(), 'hello world', 'same in as out')
- }))
- })
- tape('passthrough + double end', function(t) {
- t.plan(2)
- var pt = through()
- var dup = duplexify(pt, pt)
- dup.end('hello world')
- dup.end()
- dup.on('finish', function() {
- t.ok(true, 'should finish')
- })
- dup.pipe(concat(function(data) {
- t.same(data.toString(), 'hello world', 'same in as out')
- }))
- })
- tape('async passthrough + end', function(t) {
- t.plan(2)
- var pt = through.obj({highWaterMark:1}, function(data, enc, cb) {
- setTimeout(function() {
- cb(null, data)
- }, 100)
- })
- var dup = duplexify(pt, pt)
- dup.write('hello ')
- dup.write('world')
- dup.end()
- dup.on('finish', function() {
- t.ok(true, 'should finish')
- })
- dup.pipe(concat(function(data) {
- t.same(data.toString(), 'hello world', 'same in as out')
- }))
- })
- tape('duplex', function(t) {
- var readExpected = ['read-a', 'read-b', 'read-c']
- var writeExpected = ['write-a', 'write-b', 'write-c']
- t.plan(readExpected.length+writeExpected.length+2)
- var readable = through.obj()
- var writable = through.obj(function(data, enc, cb) {
- t.same(data, writeExpected.shift(), 'onwrite should match')
- cb()
- })
- var dup = duplexify.obj(writable, readable)
- readExpected.slice().forEach(function(data) {
- readable.write(data)
- })
- readable.end()
- writeExpected.slice().forEach(function(data) {
- dup.write(data)
- })
- dup.end()
- dup.on('data', function(data) {
- t.same(data, readExpected.shift(), 'ondata should match')
- })
- dup.on('end', function() {
- t.ok(true, 'should end')
- })
- dup.on('finish', function() {
- t.ok(true, 'should finish')
- })
- })
- tape('async', function(t) {
- var dup = duplexify()
- var pt = through()
- dup.pipe(concat(function(data) {
- t.same(data.toString(), 'i was async', 'same in as out')
- t.end()
- }))
- dup.write('i')
- dup.write(' was ')
- dup.end('async')
- setTimeout(function() {
- dup.setWritable(pt)
- setTimeout(function() {
- dup.setReadable(pt)
- }, 50)
- }, 50)
- })
- tape('destroy', function(t) {
- t.plan(2)
- var write = through()
- var read = through()
- var dup = duplexify(write, read)
- write.destroy = function() {
- t.ok(true, 'write destroyed')
- }
- dup.on('close', function() {
- t.ok(true, 'close emitted')
- })
- dup.destroy()
- dup.destroy()
- })
- tape('destroy both', function(t) {
- t.plan(3)
- var write = through()
- var read = through()
- var dup = duplexify(write, read)
- write.destroy = function() {
- t.ok(true, 'write destroyed')
- }
- read.destroy = function() {
- t.ok(true, 'read destroyed')
- }
- dup.on('close', function() {
- t.ok(true, 'close emitted')
- })
- dup.destroy()
- dup.destroy()
- })
- tape('bubble read errors', function(t) {
- t.plan(2)
- var write = through()
- var read = through()
- var dup = duplexify(write, read)
- dup.on('error', function(err) {
- t.same(err.message, 'read-error', 'received read error')
- })
- dup.on('close', function() {
- t.ok(true, 'close emitted')
- })
- read.emit('error', new Error('read-error'))
- write.emit('error', new Error('write-error'))
- })
- tape('bubble write errors', function(t) {
- t.plan(2)
- var write = through()
- var read = through()
- var dup = duplexify(write, read)
- dup.on('error', function(err) {
- t.same(err.message, 'write-error', 'received write error')
- })
- dup.on('close', function() {
- t.ok(true, 'close emitted')
- })
- write.emit('error', new Error('write-error'))
- read.emit('error', new Error('read-error'))
- })
- tape('reset writable / readable', function(t) {
- t.plan(3)
- var toUpperCase = function(data, enc, cb) {
- cb(null, data.toString().toUpperCase())
- }
- var passthrough = through()
- var upper = through(toUpperCase)
- var dup = duplexify(passthrough, passthrough)
- dup.once('data', function(data) {
- t.same(data.toString(), 'hello')
- dup.setWritable(upper)
- dup.setReadable(upper)
- dup.once('data', function(data) {
- t.same(data.toString(), 'HELLO')
- dup.once('data', function(data) {
- t.same(data.toString(), 'HI')
- t.end()
- })
- })
- dup.write('hello')
- dup.write('hi')
- })
- dup.write('hello')
- })
- tape('cork', function(t) {
- var passthrough = through()
- var dup = duplexify(passthrough, passthrough)
- var ok = false
- dup.on('prefinish', function() {
- dup.cork()
- setTimeout(function() {
- ok = true
- dup.uncork()
- }, 100)
- })
- dup.on('finish', function() {
- t.ok(ok)
- t.end()
- })
- dup.end()
- })
- tape('prefinish not twice', function(t) {
- var passthrough = through()
- var dup = duplexify(passthrough, passthrough)
- var prefinished = false
- dup.on('prefinish', function() {
- t.ok(!prefinished, 'only prefinish once')
- prefinished = true
- })
- dup.on('finish', function() {
- t.end()
- })
- dup.end()
- })
- tape('close', function(t) {
- var passthrough = through()
- var dup = duplexify(passthrough, passthrough)
- passthrough.emit('close')
- dup.on('close', function() {
- t.ok(true, 'should forward close')
- t.end()
- })
- })
- tape('works with node native streams (net)', function(t) {
- t.plan(1)
- var server = net.createServer(function(socket) {
- var dup = duplexify(socket, socket)
- dup.once('data', function(chunk) {
- t.same(chunk, Buffer('hello world'))
- server.close()
- socket.end()
- t.end()
- })
- })
- server.listen(0, function () {
- var socket = net.connect(server.address().port)
- var dup = duplexify(socket, socket)
- dup.write(Buffer('hello world'))
- })
- })
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