"use strict"; var assert = require('assert') , vows = require('vows') , layouts = require('../lib/layouts') , sandbox = require('sandboxed-module'); vows.describe('../lib/appenders/stderr').addBatch({ 'appender': { topic: function() { var messages = [] , fakeProcess = { stderr: { write: function(msg) { messages.push(msg); } } } , appenderModule = sandbox.require( '../lib/appenders/stderr', { globals: { 'process': fakeProcess } } ) , appender = appenderModule.appender(layouts.messagePassThroughLayout); appender({ data: ["blah"] }); return messages; }, 'should output to stderr': function(messages) { assert.equal(messages[0], 'blah\n'); } } }).exportTo(module);