[express] http.createServer can take express app (#11292)

* Create pug-test.ts

* Test http.createServer can take express app

* Delete this

express/express-tests.ts

@@ -1,101 +1,114 @@
 /// <reference path="express.d.ts" />
 /// <reference path="../node/node.d.ts" />
-
 import * as express from 'express';
-var app = express();
-
-app.engine('jade', require('jade').__express);
-app.engine('html', require('ejs').renderFile);
-
-express.static.mime.define({
-	'application/fx': ['fx']
-});
-app.use('/static', express.static(__dirname + '/public'));
-
-// simple logger
-app.use(function(req, res, next){
-    console.log('%s %s', req.method, req.url);
-    next();
-});
-
-app.use(function(err: any, req: express.Request, res: express.Response, next: express.NextFunction) {
-    console.error(err);
-    next(err);
-});
 
 
-app.get('/', function(req, res){
-    res.send('hello world');
-});
+namespace express_tests {
 
-const router = express.Router();
+    var app = express();
 
+    app.engine('jade', require('jade').__express);
+    app.engine('html', require('ejs').renderFile);
 
-const pathStr : string = 'test';
-const pathRE : RegExp = /test/;
-const path = true? pathStr : pathRE;
+    express.static.mime.define({
+        'application/fx': ['fx']
+    });
+    app.use('/static', express.static(__dirname + '/public'));
 
-router.get(path);
-router.put(path)
-router.post(path);
-router.delete(path);
-router.get(pathStr);
-router.put(pathStr)
-router.post(pathStr);
-router.delete(pathStr);
-router.get(pathRE);
-router.put(pathRE)
-router.post(pathRE);
-router.delete(pathRE);
-
-router.use((req, res, next) => { next(); })
-router.route('/users')
-    .get((req, res, next) => {
-        let types: string[] = req.accepts();
-        let type: string | boolean = req.accepts('json');
-        type = req.accepts(['json', 'text']);
-        type = req.accepts('json', 'text');
-
-        let charsets: string[] = req.acceptsCharsets();
-        let charset: string | boolean = req.acceptsCharsets('utf-8');
-        charset = req.acceptsCharsets(['utf-8', 'utf-16']);
-        charset = req.acceptsCharsets('utf-8', 'utf-16');
-
-        let encodings: string[] = req.acceptsEncodings();
-        let encoding: string | boolean = req.acceptsEncodings('gzip');
-        encoding = req.acceptsEncodings(['gzip', 'deflate']);
-        encoding = req.acceptsEncodings('gzip', 'deflate');
-
-        let languages: string[] = req.acceptsLanguages();
-        let language: string | boolean = req.acceptsLanguages('en');
-        language = req.acceptsLanguages(['en', 'ja']);
-        language = req.acceptsLanguages('en', 'ja');
-
-        res.send(req.query['token']);
+    // simple logger
+    app.use(function(req, res, next) {
+        console.log('%s %s', req.method, req.url);
+        next();
     });
 
-router.get('/user/:id', function(req, res, next) {
-    if (req.params.id == 0) next('route');
-    else next();
-}, function(req, res, next) {
-    res.render('regular');
-});
+    app.use(function(err: any, req: express.Request, res: express.Response, next: express.NextFunction) {
+        console.error(err);
+        next(err);
+    });
 
-app.use((req, res, next) => {
-    // hacky trick, router is just a handler
-    router(req, res, next);
-});
 
-app.use(router);
+    app.get('/', function(req, res) {
+        res.send('hello world');
+    });
 
-app.listen(3000);
+    const router = express.Router();
 
-const next: express.NextFunction = () => {};
-const nextWithArgument: express.NextFunction = (err: any) => {};
 
-/**
- * The express.Application is compatible with http.createServer
- */
+    const pathStr: string = 'test';
+    const pathRE: RegExp = /test/;
+    const path = true ? pathStr : pathRE;
 
+    router.get(path);
+    router.put(path)
+    router.post(path);
+    router.delete(path);
+    router.get(pathStr);
+    router.put(pathStr)
+    router.post(pathStr);
+    router.delete(pathStr);
+    router.get(pathRE);
+    router.put(pathRE)
+    router.post(pathRE);
+    router.delete(pathRE);
+
+    router.use((req, res, next) => { next(); })
+    router.route('/users')
+        .get((req, res, next) => {
+            let types: string[] = req.accepts();
+            let type: string | boolean = req.accepts('json');
+            type = req.accepts(['json', 'text']);
+            type = req.accepts('json', 'text');
+
+            let charsets: string[] = req.acceptsCharsets();
+            let charset: string | boolean = req.acceptsCharsets('utf-8');
+            charset = req.acceptsCharsets(['utf-8', 'utf-16']);
+            charset = req.acceptsCharsets('utf-8', 'utf-16');
+
+            let encodings: string[] = req.acceptsEncodings();
+            let encoding: string | boolean = req.acceptsEncodings('gzip');
+            encoding = req.acceptsEncodings(['gzip', 'deflate']);
+            encoding = req.acceptsEncodings('gzip', 'deflate');
+
+            let languages: string[] = req.acceptsLanguages();
+            let language: string | boolean = req.acceptsLanguages('en');
+            language = req.acceptsLanguages(['en', 'ja']);
+            language = req.acceptsLanguages('en', 'ja');
+
+            res.send(req.query['token']);
+        });
+
+    router.get('/user/:id', function(req, res, next) {
+        if (req.params.id == 0) next('route');
+        else next();
+    }, function(req, res, next) {
+        res.render('regular');
+    });
+
+    app.use((req, res, next) => {
+        // hacky trick, router is just a handler
+        router(req, res, next);
+    });
+
+    app.use(router);
+
+    app.listen(3000);
+
+    const next: express.NextFunction = () => { };
+}
+
+/***************************
+ *                         *
+ * Test with other modules *
+ *                         *
+ ***************************/
 import * as http from 'http';
-http.createServer(app);
+
+
+namespace node_tests {
+
+    {
+        // http.createServer can take express application
+        const app: express.Application = express();
+        http.createServer(app).listen(5678);
+    }
+}