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123 lines
2.6 KiB
123 lines
2.6 KiB
var test = require('tape') |
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var path = require('path') |
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var from = require('./') |
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var fs = require('fs') |
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var tmp = path.resolve( |
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__dirname, 'tmp.txt' |
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) |
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function fromString(string) { |
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return from(function(size, next) { |
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if (string.length <= 0) return next(null, null) |
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var chunk = string.slice(0, size) |
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string = string.slice(size) |
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next(null, chunk) |
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}) |
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} |
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test('from2', function(t) { |
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var contents = fs.readFileSync(__filename, 'utf8') |
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var stream = fromString(contents) |
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stream |
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.pipe(fs.createWriteStream(tmp)) |
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.on('close', function() { |
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t.equal(fs.readFileSync(tmp, 'utf8'), contents) |
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fs.unlinkSync(tmp) |
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t.end() |
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}) |
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}) |
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test('old mode', function(t) { |
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var contents = fs.readFileSync(__filename, 'utf8') |
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var stream = fromString(contents) |
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var buffer = '' |
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stream.on('data', function(data) { |
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buffer += data |
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}).on('end', function() { |
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t.equal(buffer, contents) |
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t.end() |
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}) |
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}) |
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test('destroy', function(t) { |
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var stream = from(function(size, next) { |
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process.nextTick(function() { |
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next(null, 'no') |
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}) |
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}) |
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stream.on('data', function(data) { |
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t.ok(false) |
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}).on('close', function() { |
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t.ok(true) |
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t.end() |
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}) |
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stream.destroy() |
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}) |
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test('arrays', function (t) { |
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var input = ['a', 'b', 'c'] |
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var stream = from(input) |
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var output = [] |
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stream.on('data', function (letter) { |
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output.push(letter.toString()) |
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}) |
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stream.on('end', function () { |
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t.deepEqual(input, output) |
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t.end() |
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}) |
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}) |
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test('obj arrays', function (t) { |
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var input = [{foo:'a'}, {foo:'b'}, {foo:'c'}] |
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var stream = from.obj(input) |
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var output = [] |
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stream.on('data', function (letter) { |
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output.push(letter) |
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}) |
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stream.on('end', function () { |
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t.deepEqual(input, output) |
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t.end() |
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}) |
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}) |
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test('arrays can emit errors', function (t) { |
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var input = ['a', 'b', new Error('ooops'), 'c'] |
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var stream = from(input) |
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var output = [] |
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stream.on('data', function (letter) { |
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output.push(letter.toString()) |
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}) |
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stream.on('error', function(e){ |
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t.deepEqual(['a', 'b'], output) |
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t.equal('ooops', e.message) |
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t.end() |
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}) |
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stream.on('end', function () { |
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t.fail('the stream should have errored') |
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}) |
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}) |
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test('obj arrays can emit errors', function (t) { |
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var input = [{foo:'a'}, {foo:'b'}, new Error('ooops'), {foo:'c'}] |
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var stream = from.obj(input) |
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var output = [] |
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stream.on('data', function (letter) { |
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output.push(letter) |
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}) |
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stream.on('error', function(e){ |
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t.deepEqual([{foo:'a'}, {foo:'b'}], output) |
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t.equal('ooops', e.message) |
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t.end() |
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}) |
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stream.on('end', function () { |
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t.fail('the stream should have errored') |
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}) |
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}) |
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