Add integration tests for scroll

e2e-lanthan/server/MockServer.js

@@ -0,0 +1,58 @@
+var http = require('http');
+var url = require('url');
+var handlers = require('./handlers');
+
+class MockServer {
+  constructor() {
+    this.handlers = [];
+    this.server = undefined;
+  }
+
+  start() {
+    if (this.server) {
+      throw new Error('Server is already started');
+    }
+
+    let listener = (req, res) => {
+      if (req.method !== 'GET') {
+        res.writeHead(404, {'Content-Type': 'text/plain'});
+        res.end('not found')
+        return
+      }
+
+      let u = url.parse(req.url);
+      let handler = this.handlers.find(h => u.pathname == h.pathname);
+      if (!handler) {
+        res.writeHead(404, {'Content-Type': 'text/plain'});
+        res.end('not found')
+        return
+      }
+
+      handler.handler(req, res);
+    }
+
+    this.server = http.createServer(listener);
+    this.server.listen();
+  }
+
+  stop() {
+    if (!this.server) {
+      throw new Error('Server is not started');
+    }
+    this.server.close();
+    this.server = undefined;
+  }
+
+  port() {
+    if (!this.server) {
+      throw new Error('Server is not started');
+    }
+    return this.server.address().port
+  }
+
+  on(pathname, handler) {
+    this.handlers.push({ pathname, handler });
+  }
+}
+
+module.exports = MockServer

e2e-lanthan/server/handlers.js

@@ -0,0 +1,17 @@
+const handleText = (body) => {
+    return (req, res) => {
+      res.writeHead(200, {'Content-Type': 'text/plane'});
+      res.end(body);
+    }
+}
+
+const handleHtml = (body) => {
+    return (req, res) => {
+      res.writeHead(200, {'Content-Type': 'text/html'});
+      res.end(body);
+    }
+}
+
+module.exports = {
+  handleText, handleHtml
+}