869 lines
24 KiB
JavaScript
869 lines
24 KiB
JavaScript
/*jshint -W030 */
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var async = require('async');
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var path = require('path');
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var http = require('http');
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var express = require('express');
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var loopback = require('../');
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var PersistedModel = loopback.PersistedModel;
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var describe = require('./util/describe');
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var it = require('./util/it');
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describe('app', function() {
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describe.onServer('.middleware(phase, handler)', function() {
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var app;
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var steps;
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beforeEach(function setup() {
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app = loopback();
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steps = [];
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});
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it('runs middleware in phases', function(done) {
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var PHASES = [
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'initial', 'session', 'auth', 'parse',
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'routes', 'files', 'final'
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];
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PHASES.forEach(function(name) {
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app.middleware(name, namedHandler(name));
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});
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app.use(namedHandler('main'));
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(steps).to.eql([
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'initial', 'session', 'auth', 'parse',
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'main', 'routes', 'files', 'final'
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]);
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done();
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});
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});
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it('preserves order of handlers in the same phase', function(done) {
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app.middleware('initial', namedHandler('first'));
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app.middleware('initial', namedHandler('second'));
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['first', 'second']);
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done();
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});
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});
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it('supports `before:` and `after:` prefixes', function(done) {
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app.middleware('routes:before', namedHandler('routes:before'));
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app.middleware('routes:after', namedHandler('routes:after'));
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app.use(namedHandler('main'));
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['routes:before', 'main', 'routes:after']);
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done();
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});
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});
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it('injects error from previous phases into the router', function(done) {
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var expectedError = new Error('expected error');
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app.middleware('initial', function(req, res, next) {
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steps.push('initial');
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next(expectedError);
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});
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// legacy solution for error handling
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app.use(function errorHandler(err, req, res, next) {
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expect(err).to.equal(expectedError);
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steps.push('error');
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next();
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});
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['initial', 'error']);
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done();
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});
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});
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it('passes unhandled error to callback', function(done) {
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var expectedError = new Error('expected error');
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app.middleware('initial', function(req, res, next) {
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next(expectedError);
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});
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executeMiddlewareHandlers(app, function(err) {
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expect(err).to.equal(expectedError);
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done();
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});
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});
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it('passes errors to error handlers in the same phase', function(done) {
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var expectedError = new Error('this should be handled by middleware');
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var handledError;
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app.middleware('initial', function(req, res, next) {
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// continue in the next tick, this verifies that the next
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// handler waits until the previous one is done
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process.nextTick(function() {
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next(expectedError);
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});
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});
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app.middleware('initial', function(err, req, res, next) {
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handledError = err;
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next();
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});
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(handledError).to.equal(expectedError);
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done();
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});
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});
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it('scopes middleware to a string path', function(done) {
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app.middleware('initial', '/scope', pathSavingHandler());
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async.eachSeries(
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['/', '/scope', '/scope/item', '/other'],
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function(url, next) { executeMiddlewareHandlers(app, url, next); },
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function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['/scope', '/scope/item']);
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done();
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});
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});
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it('scopes middleware to a regex path', function(done) {
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app.middleware('initial', /^\/(a|b)/, pathSavingHandler());
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async.eachSeries(
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['/', '/a', '/b', '/c'],
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function(url, next) { executeMiddlewareHandlers(app, url, next); },
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function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['/a', '/b']);
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done();
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});
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});
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it('scopes middleware to a list of scopes', function(done) {
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app.middleware('initial', ['/scope', /^\/(a|b)/], pathSavingHandler());
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async.eachSeries(
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['/', '/a', '/b', '/c', '/scope', '/other'],
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function(url, next) { executeMiddlewareHandlers(app, url, next); },
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function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['/a', '/b', '/scope']);
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done();
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});
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});
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it('sets req.url to a sub-path', function(done) {
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app.middleware('initial', ['/scope'], function(req, res, next) {
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steps.push(req.url);
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next();
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});
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executeMiddlewareHandlers(app, '/scope/id', function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['/id']);
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done();
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});
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});
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it('exposes express helpers on req and res objects', function(done) {
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var req;
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var res;
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app.middleware('initial', function(rq, rs, next) {
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req = rq;
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res = rs;
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next();
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});
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(getObjectAndPrototypeKeys(req), 'request').to.include.members([
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'accepts',
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'get',
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'param',
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'params',
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'query',
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'res'
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]);
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expect(getObjectAndPrototypeKeys(res), 'response').to.include.members([
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'cookie',
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'download',
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'json',
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'jsonp',
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'redirect',
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'req',
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'send',
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'sendFile',
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'set'
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]);
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done();
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});
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});
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it('sets req.baseUrl and req.originalUrl', function(done) {
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var reqProps;
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app.middleware('initial', function(req, res, next) {
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reqProps = { baseUrl: req.baseUrl, originalUrl: req.originalUrl };
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next();
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});
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executeMiddlewareHandlers(app, '/test/url', function(err) {
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if (err) return done(err);
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expect(reqProps).to.eql({ baseUrl: '', originalUrl: '/test/url' });
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done();
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});
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});
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it('preserves correct order of routes vs. middleware', function(done) {
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// This test verifies that `app.route` triggers sort of layers
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app.middleware('files', namedHandler('files'));
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app.get('/test', namedHandler('route'));
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executeMiddlewareHandlers(app, '/test', function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['route', 'files']);
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done();
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});
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});
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it('preserves order of middleware in the same phase', function(done) {
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// while we are discouraging developers from depending on
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// the registration order of middleware in the same phase,
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// we must preserve the order for compatibility with `app.use`
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// and `app.route`.
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// we need at least 9 elements to expose non-stability
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// of the built-in sort function
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var numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9];
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numbers.forEach(function(n) {
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app.middleware('routes', namedHandler(n));
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});
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done;
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expect(steps).to.eql(numbers);
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done();
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});
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});
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it('correctly mounts express apps', function(done) {
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var data;
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var mountWasEmitted;
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var subapp = express();
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subapp.use(function(req, res, next) {
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data = {
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mountpath: req.app.mountpath,
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parent: req.app.parent
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};
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next();
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});
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subapp.on('mount', function() { mountWasEmitted = true; });
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app.middleware('routes', '/mountpath', subapp);
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executeMiddlewareHandlers(app, '/mountpath/test', function(err) {
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if (err) return done(err);
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expect(mountWasEmitted, 'mountWasEmitted').to.be.true();
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expect(data).to.eql({
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mountpath: '/mountpath',
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parent: app
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});
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done();
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});
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});
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it('restores req & res on return from mounted express app', function(done) {
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// jshint proto:true
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var expected = {};
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var actual = {};
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var subapp = express();
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subapp.use(function verifyTestAssumptions(req, res, next) {
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expect(req.__proto__).to.not.equal(expected.req);
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expect(res.__proto__).to.not.equal(expected.res);
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next();
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});
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app.middleware('initial', function saveOriginalValues(req, res, next) {
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expected.req = req.__proto__;
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expected.res = res.__proto__;
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next();
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});
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app.middleware('routes', subapp);
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app.middleware('final', function saveActualValues(req, res, next) {
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actual.req = req.__proto__;
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actual.res = res.__proto__;
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next();
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});
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(actual.req, 'req').to.equal(expected.req);
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expect(actual.res, 'res').to.equal(expected.res);
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done();
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});
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});
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function namedHandler(name) {
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return function(req, res, next) {
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steps.push(name);
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next();
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};
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}
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function pathSavingHandler() {
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return function(req, res, next) {
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steps.push(req.originalUrl);
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next();
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};
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}
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function getObjectAndPrototypeKeys(obj) {
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var result = [];
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for (var k in obj) {
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result.push(k);
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}
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result.sort();
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return result;
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}
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});
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describe.onServer('.middlewareFromConfig', function() {
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it('provides API for loading middleware from JSON config', function(done) {
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var steps = [];
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var expectedConfig = { key: 'value' };
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var handlerFactory = function() {
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var args = Array.prototype.slice.apply(arguments);
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return function(req, res, next) {
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steps.push(args);
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next();
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};
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};
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// Config as an object (single arg)
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app.middlewareFromConfig(handlerFactory, {
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enabled: true,
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phase: 'session',
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params: expectedConfig
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});
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// Config as a value (single arg)
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app.middlewareFromConfig(handlerFactory, {
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enabled: true,
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phase: 'session:before',
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params: 'before'
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});
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// Config as a list of args
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app.middlewareFromConfig(handlerFactory, {
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enabled: true,
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phase: 'session:after',
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params: ['after', 2]
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});
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// Disabled by configuration
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app.middlewareFromConfig(handlerFactory, {
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enabled: false,
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phase: 'initial',
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params: null
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});
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(steps).to.eql([
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['before'],
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[expectedConfig],
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['after', 2]
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]);
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done();
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});
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});
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it('scopes middleware to a list of scopes', function(done) {
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var steps = [];
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app.middlewareFromConfig(
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function factory() {
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return function(req, res, next) {
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steps.push(req.originalUrl);
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next();
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};
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},
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{
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phase: 'initial',
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paths: ['/scope', /^\/(a|b)/]
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});
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async.eachSeries(
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['/', '/a', '/b', '/c', '/scope', '/other'],
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function(url, next) { executeMiddlewareHandlers(app, url, next); },
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function(err) {
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if (err) return done(err);
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expect(steps).to.eql(['/a', '/b', '/scope']);
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done();
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});
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});
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});
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describe.onServer('.defineMiddlewarePhases(nameOrArray)', function() {
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var app;
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beforeEach(function() {
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app = loopback();
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});
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it('adds the phase just before `routes` by default', function(done) {
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app.defineMiddlewarePhases('custom');
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verifyMiddlewarePhases(['custom', 'routes'], done);
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});
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it('merges phases adding to the start of the list', function(done) {
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app.defineMiddlewarePhases(['first', 'routes', 'subapps']);
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verifyMiddlewarePhases([
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'first',
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'initial', // this was the original first phase
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'routes',
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'subapps'
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], done);
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});
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it('merges phases preserving the order', function(done) {
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app.defineMiddlewarePhases([
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'initial',
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'postinit', 'preauth', // add
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'auth', 'routes',
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'subapps', // add
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'final',
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'last' // add
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]);
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verifyMiddlewarePhases([
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'initial',
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'postinit', 'preauth', // new
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'auth', 'routes',
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'subapps', // new
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'files', 'final',
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'last' // new
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], done);
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});
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it('throws helpful error on ordering conflict', function() {
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app.defineMiddlewarePhases(['first', 'second']);
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expect(function() { app.defineMiddlewarePhases(['second', 'first']); })
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.to.throw(/Ordering conflict.*first.*second/);
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});
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function verifyMiddlewarePhases(names, done) {
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var steps = [];
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names.forEach(function(it) {
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app.middleware(it, function(req, res, next) {
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steps.push(it);
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next();
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});
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});
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executeMiddlewareHandlers(app, function(err) {
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if (err) return done(err);
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expect(steps).to.eql(names);
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done();
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});
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}
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});
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describe('app.model(Model)', function() {
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var app;
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var db;
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beforeEach(function() {
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app = loopback();
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db = loopback.createDataSource({connector: loopback.Memory});
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});
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it('Expose a `Model` to remote clients', function() {
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var Color = PersistedModel.extend('color', {name: String});
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app.model(Color);
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Color.attachTo(db);
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expect(app.models()).to.eql([Color]);
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});
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it('uses singlar name as app.remoteObjects() key', function() {
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var Color = PersistedModel.extend('color', {name: String});
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app.model(Color);
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Color.attachTo(db);
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expect(app.remoteObjects()).to.eql({ color: Color });
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});
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it('uses singular name as shared class name', function() {
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var Color = PersistedModel.extend('color', {name: String});
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app.model(Color);
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Color.attachTo(db);
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var classes = app.remotes().classes().map(function(c) {return c.name;});
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expect(classes).to.contain('color');
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});
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it('registers existing models to app.models', function() {
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var Color = db.createModel('color', {name: String});
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app.model(Color);
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expect(Color.app).to.be.equal(app);
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expect(Color.shared).to.equal(true);
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expect(app.models.color).to.equal(Color);
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expect(app.models.Color).to.equal(Color);
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});
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it('emits a `modelRemoted` event', function() {
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var Color = PersistedModel.extend('color', {name: String});
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Color.shared = true;
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var remotedClass;
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app.on('modelRemoted', function(sharedClass) {
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remotedClass = sharedClass;
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});
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app.model(Color);
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expect(remotedClass).to.exist;
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expect(remotedClass).to.eql(Color.sharedClass);
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});
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it.onServer('updates REST API when a new model is added', function(done) {
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app.use(loopback.rest());
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request(app).get('/colors').expect(404, function(err, res) {
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if (err) return done(err);
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var Color = PersistedModel.extend('color', {name: String});
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app.model(Color);
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Color.attachTo(db);
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request(app).get('/colors').expect(200, done);
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});
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});
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it('accepts null dataSource', function() {
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app.model('MyTestModel', { dataSource: null });
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});
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it('should not require dataSource', function() {
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app.model('MyTestModel', {});
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});
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});
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describe('app.model(name, config)', function() {
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var app;
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beforeEach(function() {
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app = loopback();
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app.dataSource('db', {
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connector: 'memory'
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});
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});
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it('Sugar for defining a fully built model', function() {
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app.model('foo', {
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dataSource: 'db'
|
|
});
|
|
|
|
var Foo = app.models.foo;
|
|
var f = new Foo();
|
|
|
|
assert(f instanceof loopback.Model);
|
|
});
|
|
|
|
it('interprets extra first-level keys as options', function() {
|
|
app.model('foo', {
|
|
dataSource: 'db',
|
|
base: 'User'
|
|
});
|
|
|
|
expect(app.models.foo.definition.settings.base).to.equal('User');
|
|
});
|
|
|
|
it('prefers config.options.key over config.key', function() {
|
|
app.model('foo', {
|
|
dataSource: 'db',
|
|
base: 'User',
|
|
options: {
|
|
base: 'Application'
|
|
}
|
|
});
|
|
|
|
expect(app.models.foo.definition.settings.base).to.equal('Application');
|
|
});
|
|
|
|
it('honors config.public options', function() {
|
|
app.model('foo', {
|
|
dataSource: 'db',
|
|
public: false
|
|
});
|
|
expect(app.models.foo.app).to.equal(app);
|
|
expect(app.models.foo.shared).to.equal(false);
|
|
});
|
|
|
|
it('defaults config.public to be true', function() {
|
|
app.model('foo', {
|
|
dataSource: 'db'
|
|
});
|
|
expect(app.models.foo.app).to.equal(app);
|
|
expect(app.models.foo.shared).to.equal(true);
|
|
});
|
|
|
|
});
|
|
|
|
describe('app.model(ModelCtor, config)', function() {
|
|
it('attaches the model to a datasource', function() {
|
|
app.dataSource('db', { connector: 'memory' });
|
|
var TestModel = loopback.Model.extend('TestModel');
|
|
// TestModel was most likely already defined in a different test,
|
|
// thus TestModel.dataSource may be already set
|
|
delete TestModel.dataSource;
|
|
|
|
app.model(TestModel, { dataSource: 'db' });
|
|
|
|
expect(app.models.TestModel.dataSource).to.equal(app.dataSources.db);
|
|
});
|
|
});
|
|
|
|
describe('app.models', function() {
|
|
it('is unique per app instance', function() {
|
|
app.dataSource('db', { connector: 'memory' });
|
|
var Color = app.model('Color', { dataSource: 'db' });
|
|
expect(app.models.Color).to.equal(Color);
|
|
var anotherApp = loopback();
|
|
expect(anotherApp.models.Color).to.equal(undefined);
|
|
});
|
|
});
|
|
|
|
describe('app.dataSources', function() {
|
|
it('is unique per app instance', function() {
|
|
app.dataSource('ds', { connector: 'memory' });
|
|
expect(app.datasources.ds).to.not.equal(undefined);
|
|
var anotherApp = loopback();
|
|
expect(anotherApp.datasources.ds).to.equal(undefined);
|
|
});
|
|
});
|
|
|
|
describe('app.dataSource', function() {
|
|
it('looks up the connector in `app.connectors`', function() {
|
|
app.connector('custom', loopback.Memory);
|
|
app.dataSource('custom', { connector: 'custom' });
|
|
expect(app.dataSources.custom.name).to.equal(loopback.Memory.name);
|
|
});
|
|
});
|
|
|
|
describe.onServer('listen()', function() {
|
|
it('starts http server', function(done) {
|
|
var app = loopback();
|
|
app.set('port', 0);
|
|
app.get('/', function(req, res) { res.status(200).send('OK'); });
|
|
|
|
var server = app.listen();
|
|
|
|
expect(server).to.be.an.instanceOf(require('http').Server);
|
|
|
|
request(server)
|
|
.get('/')
|
|
.expect(200, done);
|
|
});
|
|
|
|
it('updates port on `listening` event', function(done) {
|
|
var app = loopback();
|
|
app.set('port', 0);
|
|
|
|
app.listen(function() {
|
|
expect(app.get('port'), 'port').to.not.equal(0);
|
|
done();
|
|
});
|
|
});
|
|
|
|
it('updates `url` on `listening` event', function(done) {
|
|
var app = loopback();
|
|
app.set('port', 0);
|
|
app.set('host', undefined);
|
|
|
|
app.listen(function() {
|
|
var host = process.platform === 'win32' ? 'localhost' : app.get('host');
|
|
var expectedUrl = 'http://' + host + ':' + app.get('port') + '/';
|
|
expect(app.get('url'), 'url').to.equal(expectedUrl);
|
|
done();
|
|
});
|
|
});
|
|
|
|
it('forwards to http.Server.listen on more than one arg', function(done) {
|
|
var app = loopback();
|
|
app.set('port', 1);
|
|
app.listen(0, '127.0.0.1', function() {
|
|
expect(app.get('port'), 'port').to.not.equal(0).and.not.equal(1);
|
|
expect(this.address().address).to.equal('127.0.0.1');
|
|
done();
|
|
});
|
|
});
|
|
|
|
it('forwards to http.Server.listen when the single arg is not a function',
|
|
function(done) {
|
|
var app = loopback();
|
|
app.set('port', 1);
|
|
app.listen(0).on('listening', function() {
|
|
expect(app.get('port'), 'port') .to.not.equal(0).and.not.equal(1);
|
|
done();
|
|
});
|
|
}
|
|
);
|
|
|
|
it('uses app config when no parameter is supplied', function(done) {
|
|
var app = loopback();
|
|
// Http listens on all interfaces by default
|
|
// Custom host serves as an indicator whether
|
|
// the value was used by app.listen
|
|
app.set('host', '127.0.0.1');
|
|
app.listen()
|
|
.on('listening', function() {
|
|
expect(this.address().address).to.equal('127.0.0.1');
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
describe.onServer('enableAuth', function() {
|
|
it('should set app.isAuthEnabled to true', function() {
|
|
expect(app.isAuthEnabled).to.not.equal(true);
|
|
app.enableAuth();
|
|
expect(app.isAuthEnabled).to.equal(true);
|
|
});
|
|
});
|
|
|
|
describe.onServer('app.get(\'/\', loopback.status())', function() {
|
|
it('should return the status of the application', function(done) {
|
|
var app = loopback();
|
|
app.get('/', loopback.status());
|
|
request(app)
|
|
.get('/')
|
|
.expect(200)
|
|
.end(function(err, res) {
|
|
if (err) return done(err);
|
|
|
|
assert.equal(typeof res.body, 'object');
|
|
assert(res.body.started);
|
|
// The number can be 0
|
|
assert(res.body.uptime !== undefined);
|
|
|
|
var elapsed = Date.now() - Number(new Date(res.body.started));
|
|
|
|
// elapsed should be a positive number...
|
|
assert(elapsed >= 0);
|
|
|
|
// less than 100 milliseconds
|
|
assert(elapsed < 100);
|
|
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('app.connectors', function() {
|
|
it('is unique per app instance', function() {
|
|
app.connectors.foo = 'bar';
|
|
var anotherApp = loopback();
|
|
expect(anotherApp.connectors.foo).to.equal(undefined);
|
|
});
|
|
|
|
it('includes Remote connector', function() {
|
|
expect(app.connectors.remote).to.equal(loopback.Remote);
|
|
});
|
|
|
|
it('includes Memory connector', function() {
|
|
expect(app.connectors.memory).to.equal(loopback.Memory);
|
|
});
|
|
});
|
|
|
|
describe('app.connector', function() {
|
|
// any connector will do
|
|
it('adds the connector to the registry', function() {
|
|
app.connector('foo-bar', loopback.Memory);
|
|
expect(app.connectors['foo-bar']).to.equal(loopback.Memory);
|
|
});
|
|
|
|
it('adds a classified alias', function() {
|
|
app.connector('foo-bar', loopback.Memory);
|
|
expect(app.connectors.FooBar).to.equal(loopback.Memory);
|
|
});
|
|
|
|
it('adds a camelized alias', function() {
|
|
app.connector('FOO-BAR', loopback.Memory);
|
|
expect(app.connectors.FOOBAR).to.equal(loopback.Memory);
|
|
});
|
|
});
|
|
|
|
describe('app.settings', function() {
|
|
it('can be altered via `app.set(key, value)`', function() {
|
|
app.set('write-key', 'write-value');
|
|
expect(app.settings).to.have.property('write-key', 'write-value');
|
|
});
|
|
|
|
it('can be read via `app.get(key)`', function() {
|
|
app.settings['read-key'] = 'read-value';
|
|
expect(app.get('read-key')).to.equal('read-value');
|
|
});
|
|
|
|
it('is unique per app instance', function() {
|
|
var app1 = loopback();
|
|
var app2 = loopback();
|
|
|
|
expect(app1.settings).to.not.equal(app2.settings);
|
|
|
|
app1.set('key', 'value');
|
|
expect(app2.get('key'), 'app2 value').to.equal(undefined);
|
|
});
|
|
});
|
|
|
|
it('exposes loopback as a property', function() {
|
|
var app = loopback();
|
|
expect(app.loopback).to.equal(loopback);
|
|
});
|
|
|
|
describe('normalizeHttpPath option', function() {
|
|
var app;
|
|
var db;
|
|
beforeEach(function() {
|
|
app = loopback();
|
|
db = loopback.createDataSource({ connector: loopback.Memory });
|
|
});
|
|
|
|
it.onServer('normalizes the http path', function(done) {
|
|
var UserAccount = PersistedModel.extend(
|
|
'UserAccount',
|
|
{ name: String },
|
|
{
|
|
remoting: { normalizeHttpPath: true }
|
|
});
|
|
app.model(UserAccount);
|
|
UserAccount.attachTo(db);
|
|
|
|
app.use(loopback.rest());
|
|
request(app).get('/user-accounts').expect(200, done);
|
|
});
|
|
});
|
|
});
|
|
|
|
function executeMiddlewareHandlers(app, urlPath, callback) {
|
|
var server = http.createServer(function(req, res) {
|
|
app.handle(req, res, callback);
|
|
});
|
|
|
|
if (callback === undefined && typeof urlPath === 'function') {
|
|
callback = urlPath;
|
|
urlPath = '/test/url';
|
|
}
|
|
|
|
request(server)
|
|
.get(urlPath)
|
|
.end(function(err) {
|
|
if (err) return callback(err);
|
|
});
|
|
}
|