IOTConnect-Web/node_modules/callback-stream/test.js
2024-05-09 09:49:52 +08:00

58 lines
1.5 KiB
JavaScript

'use strict'
var test = require('tap').test
var callback = require('./')
var fs = require('fs')
test('call the callback after end with object mode', function (t) {
var opts = { objectMode: true }
var stream = callback(opts, function (err, results) {
t.deepEqual(results, ['hello'], 'should return the ending value')
t.end()
})
stream.end('hello')
})
test('support multiple writes with object mode', function (t) {
var opts = { objectMode: true }
var stream = callback(opts, function (err, results) {
t.deepEqual(results, ['hello', 'world'], 'should return the ending value')
t.end()
})
stream.write('hello')
stream.end('world')
})
test('works without object mode', function (t) {
var stream = callback(function (err, results) {
t.equal(results.length, 1, 'should contain only one value')
t.deepEqual(results[0].toString(), 'world', 'should return the ending value')
t.end()
})
stream.end('world')
})
test('is pipeable', function (t) {
var write = callback(function (err, results) {
var actual = Buffer.concat(results).toString()
var expected = fs.readFileSync('README.md').toString()
t.equal(actual, expected, 'should have the same content of the file')
t.end()
})
var read = fs.createReadStream('README.md')
read.pipe(write)
})
test('callback.obj shortcut for objectMode', function (t) {
var stream = callback.obj(function (err, results) {
t.deepEqual(results, ['hello'], 'should return the ending value')
t.end()
})
stream.end('hello')
})