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middleware.test.js
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middleware.test.js
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describe('middleware', function () {
'use strict';
var common = require('./common')
, http = require('http')
, expect = common.expect
, Pipe = common.Pipe
, server
, app;
beforeEach(function (done) {
server = http.createServer(function () {
throw new Error('Unhandled request');
});
app = new Pipe(server, {
pages: __dirname +'/fixtures/pages'
, dist: '/tmp/dist'
});
server.portnumber = common.port;
server.listen(server.portnumber, done);
});
afterEach(function (done) {
server.close(done);
});
describe('#before', function () {
it('is chainable', function () {
expect(app.before('foo', function (req, res) {})).to.equal(app);
});
it('throws when no function is profided', function (done) {
try { app.before('foo', new Date()); }
catch (e) { done(); }
});
it('throws when function doesnt accept req/res args', function (done) {
try { app.before('foo', function () { return function () {}; }); }
catch (e) { done(); }
});
it('calls the function if it has less then 2 arguments', function (done) {
app.before('example', function (options) {
expect(this).to.equal(app);
expect(options).to.be.a('object');
expect(options.foo).to.equal('bar');
done();
return function (req, res) {};
}, { foo: 'bar' });
});
it('extracts a name if none is given', function () {
expect(app.indexOfLayer('connect')).to.equal(-1);
app.before(function connect(req, res, bar) {});
expect(app.indexOfLayer('connect')).to.be.above(-1);
});
it('stores the layer', function () {
function foo(req, res, next) { }
function bar(req, res) { }
app.before('foo', foo).before('bar', bar);
var index = app.indexOfLayer('foo')
, layer = app.layers[index];
expect(layer.name).to.equal('foo');
expect(layer.enabled).to.equal(true);
expect(layer.length).to.equal(3);
expect(layer.fn).to.equal(foo);
index = app.indexOfLayer('bar');
layer = app.layers[index];
expect(layer.length).to.equal(2);
});
it('overrides layers with the same name', function () {
function foo(req, res, next) { }
function bar(req, res) { }
app.before('foo', foo);
var index = app.indexOfLayer('foo')
, layer = app.layers[index];
expect(layer.name).to.equal('foo');
expect(layer.enabled).to.equal(true);
expect(layer.length).to.equal(3);
expect(layer.fn).to.equal(foo);
app.before('foo', bar);
expect(app.indexOfLayer('foo')).to.equal(index);
index = app.indexOfLayer('foo');
layer = app.layers[index];
expect(layer.name).to.equal('foo');
expect(layer.enabled).to.equal(true);
expect(layer.length).to.equal(2);
expect(layer.fn).to.equal(bar);
});
});
describe('#indexOfLayer', function () {
it('returns the index based on name', function () {
expect(app.indexOfLayer('foo')).to.equal(-1);
app.before('foo', function (req, res) {
throw new Error('Dont execute me');
});
expect(app.indexOfLayer('foo')).to.be.above(-1);
});
});
describe('#remove', function () {
it('removes the layer from the stack', function () {
app.before('bar', function (req, res) {});
app.before('foo', function (req, res) {
throw new Error('boom');
});
expect(app.indexOfLayer('foo')).to.be.above(-1);
expect(app.indexOfLayer('bar')).to.be.above(-1);
app.remove('foo');
expect(app.indexOfLayer('foo')).to.equal(-1);
expect(app.indexOfLayer('bar')).to.be.above(-1);
});
});
describe('#disable', function () {
it('disables the middleware', function () {
app.before('foo', function (req, res) {});
var index = app.indexOfLayer('foo')
, layer = app.layers[index];
expect(layer.enabled).to.equal(true);
app.disable('foo');
expect(layer.enabled).to.equal(false);
});
});
describe('#enable', function () {
it('enables the middleware', function () {
app.before('foo', function (req, res) {});
var index = app.indexOfLayer('foo')
, layer = app.layers[index];
app.disable('foo');
expect(layer.enabled).to.equal(false);
app.enable('foo');
expect(layer.enabled).to.equal(true);
});
});
});