first step of ui test (#1497)

test/editor/editor_helper.js

@@ -0,0 +1,88 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var RED = require("../../red/red.js");
+
+var when = require("when");
+var http = require('http');
+var express = require("express");
+var fs = require('fs-extra');
+var app = express();
+
+var server;
+var homeDir = './test/resources/home';
+var address = '127.0.0.1';
+var listenPort = 0; // use ephemeral port
+var url;
+
+function cleanup() {
+    var flowsFile = homeDir + '/flows_'+require('os').hostname()+'.json';
+    try {
+        fs.statSync(flowsFile);
+        fs.unlinkSync(flowsFile);
+    } catch (err) {
+    }
+};
+
+module.exports = {
+    startServer: function(done) {
+        cleanup();
+        app.use("/",express.static("public"));
+        server = http.createServer(app);
+        var settings = {
+            httpAdminRoot: "/",
+            httpNodeRoot: "/api",
+            userDir: homeDir,
+            functionGlobalContext: { },    // enables global context
+            SKIP_BUILD_CHECK: true,
+            logging: {console: {level:'off'}}
+        };
+        RED.init(server, settings);
+        app.use(settings.httpAdminRoot,RED.httpAdmin);
+        app.use(settings.httpNodeRoot,RED.httpNode);
+        server.listen(listenPort, address);
+        server.on('listening', function() {
+            var port = server.address().port;
+            url = 'http://' + address + ':' + port;
+        });
+        RED.start().then(function() {
+            done();
+        });
+    },
+
+    stopServer: function(done) {
+        if (server) {
+            try {
+                RED.stop().then(function() {
+                    server.close(done);
+                    cleanup();
+                    done();
+                });
+            } catch(e) {
+                cleanup();
+                done();
+            }
+        }
+    },
+
+    url: function() {
+        return url;
+    },
+
+    red: function() {
+        return RED;
+    },
+};