393 lines
7.4 KiB
JavaScript
393 lines
7.4 KiB
JavaScript
'use strict'
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var test = require('tape')
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var split = require('./')
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var callback = require('callback-stream')
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var Buffer = require('safe-buffer').Buffer
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var strcb = callback.bind(null, { decodeStrings: false })
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var objcb = callback.bind(null, { objectMode: true })
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test('split two lines on end', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.end('hello\nworld')
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})
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test('split two lines on two writes', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.write('hello')
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input.write('\nworld')
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input.end()
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})
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test('split four lines on three writes', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world', 'bye', 'world'])
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}))
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input.write('hello\nwor')
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input.write('ld\nbye\nwo')
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input.write('rld')
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input.end()
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})
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test('accumulate multiple writes', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['helloworld'])
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}))
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input.write('hello')
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input.write('world')
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input.end()
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})
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test('split using a custom string matcher', function (t) {
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t.plan(2)
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var input = split('~')
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.end('hello~world')
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})
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test('split using a custom regexp matcher', function (t) {
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t.plan(2)
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var input = split(/~/)
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.end('hello~world')
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})
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test('support an option argument', function (t) {
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t.plan(2)
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var input = split({ highWaterMark: 2 })
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.end('hello\nworld')
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})
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test('support a mapper function', function (t) {
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t.plan(2)
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var a = { a: '42' }
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var b = { b: '24' }
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var input = split(JSON.parse)
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input.pipe(objcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, [a, b])
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}))
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input.write(JSON.stringify(a))
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input.write('\n')
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input.end(JSON.stringify(b))
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})
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test('split lines windows-style', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.end('hello\r\nworld')
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})
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test('splits a buffer', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.end(Buffer.from('hello\nworld'))
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})
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test('do not end on undefined', function (t) {
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t.plan(2)
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var input = split(function (line) { })
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, [])
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}))
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input.end(Buffer.from('hello\nworld'))
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})
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test('has destroy method', function (t) {
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t.plan(1)
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var input = split(function (line) { })
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input.on('close', function () {
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t.ok(true, 'close emitted')
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t.end()
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})
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input.destroy()
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})
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test('support custom matcher and mapper', function (t) {
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t.plan(4)
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var a = { a: '42' }
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var b = { b: '24' }
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var input = split('~', JSON.parse)
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t.equal(input.matcher, '~')
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t.equal(typeof input.mapper, 'function')
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input.pipe(objcb(function (err, list) {
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t.notOk(err, 'no errors')
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t.deepEqual(list, [a, b])
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}))
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input.write(JSON.stringify(a))
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input.write('~')
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input.end(JSON.stringify(b))
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})
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test('support custom matcher and options', function (t) {
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t.plan(6)
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var input = split('~', { highWaterMark: 1024 })
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t.equal(input.matcher, '~')
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t.equal(typeof input.mapper, 'function')
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t.equal(input._readableState.highWaterMark, 1024)
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t.equal(input._writableState.highWaterMark, 1024)
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.end('hello~world')
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})
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test('support mapper and options', function (t) {
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t.plan(6)
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var a = { a: '42' }
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var b = { b: '24' }
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var input = split(JSON.parse, { highWaterMark: 1024 })
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t.ok(input.matcher instanceof RegExp, 'matcher is RegExp')
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t.equal(typeof input.mapper, 'function')
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t.equal(input._readableState.highWaterMark, 1024)
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t.equal(input._writableState.highWaterMark, 1024)
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input.pipe(objcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, [a, b])
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}))
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input.write(JSON.stringify(a))
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input.write('\n')
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input.end(JSON.stringify(b))
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})
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test('split utf8 chars', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['烫烫烫', '锟斤拷'])
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}))
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var buf = Buffer.from('烫烫烫\r\n锟斤拷', 'utf8')
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for (var i = 0; i < buf.length; ++i) {
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input.write(buf.slice(i, i + 1))
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}
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input.end()
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})
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test('split utf8 chars 2by2', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['烫烫烫', '烫烫烫'])
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}))
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var str = '烫烫烫\r\n烫烫烫'
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var buf = Buffer.from(str, 'utf8')
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for (var i = 0; i < buf.length; i += 2) {
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input.write(buf.slice(i, i + 2))
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}
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input.end()
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})
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test('split lines when the \n comes at the end of a chunk', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['hello', 'world'])
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}))
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input.write('hello\n')
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input.end('world')
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})
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test('truncated utf-8 char', function (t) {
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t.plan(2)
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var input = split()
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['烫' + Buffer.from('e7', 'hex').toString()])
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}))
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var str = '烫烫'
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var buf = Buffer.from(str, 'utf8')
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input.write(buf.slice(0, 3))
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input.end(buf.slice(3, 4))
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})
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test('maximum buffer limit', function (t) {
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t.plan(1)
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var input = split({ maxLength: 2 })
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input.pipe(strcb(function (err, list) {
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t.ok(err)
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}))
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input.write('hey')
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})
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test('readable highWaterMark', function (t) {
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var input = split()
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t.equal(input._readableState.highWaterMark, 16)
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t.end()
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})
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test('maxLength < chunk size', function (t) {
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t.plan(2)
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var input = split({ maxLength: 2 })
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['a', 'b'])
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}))
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input.end('a\nb')
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})
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test('maximum buffer limit w/skip', function (t) {
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t.plan(2)
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var input = split({ maxLength: 2, skipOverflow: true })
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.deepEqual(list, ['a', 'b', 'c'])
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}))
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input.write('a\n123')
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input.write('456')
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input.write('789\nb\nc')
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input.end()
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})
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test("don't modify the options object", function (t) {
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t.plan(2)
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var options = {}
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var input = split(options)
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input.pipe(strcb(function (err, list) {
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t.error(err)
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t.same(options, {})
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}))
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input.end()
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})
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test('mapper throws flush', function (t) {
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t.plan(1)
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var error = new Error()
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var input = split(function () {
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throw error
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})
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input.on('error', (err, list) => {
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t.same(err, error)
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})
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input.end('hello')
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})
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test('mapper throws on transform', function (t) {
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t.plan(2)
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var error = new Error()
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var input = split(function (l) {
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throw error
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})
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input.on('error', (err) => {
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t.same(err, error)
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})
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input.write('a')
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input.write('\n')
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input.end('b')
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})
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