helper.js•849 B
var _Readable = require('readable-stream/readable');
var _Writable = require('readable-stream/writable');
var util = require('util');
module.exports = {
DummyReadable: DummyReadable,
DummyWritable: DummyWritable
};
function DummyReadable(strings) {
_Readable.call(this);
this.strings = strings;
this.emit('readable');
}
util.inherits(DummyReadable, _Readable);
DummyReadable.prototype._read = function _read(n) {
if (this.strings.length) {
this.push(new Buffer(this.strings.shift()));
} else {
this.push(null);
}
};
function DummyWritable(strings) {
_Writable.call(this);
this.strings = strings;
this.emit('writable');
}
util.inherits(DummyWritable, _Writable);
DummyWritable.prototype._write = function _write(chunk, encoding, callback) {
this.strings.push(chunk.toString());
if (callback) callback();
};