Add tests for running API and UI on the same server port (#151)

[nominatim-ui.git] / test / _bootstrap.js

diff --git a/test/_bootstrap.js b/test/_bootstrap.js
index 0c344ec46ca2eff825a1e5bcad224e894b2249e8..b527ee8b32d522fd094f929218e236097e65305c 100644 (file)
--- a/test/_bootstrap.js
+++ b/test/_bootstrap.js
@@ -1,10 +1,22 @@
 const static_server = require('static-server');
+const http = require('http');
+const httpProxy = require('http-proxy');
 const puppeteer = require('puppeteer');
 const fse = require('fs-extra');
 
+const testing_port = 9999; // this is the port all tests expect nominatim-ui to listen to
+
+// The installation on https://nominatim.openstreetmap.org/ui/ is a bit more complex as
+// for backward compatiblity they run the API and the UI on the same port. Nominatim-UI
+// is installed in the /ui subdirectory plus their webserver has custom redirect rules.
+//
+// We can simulate that with a proxy.
+const use_proxy = !!process.env.API_ON_SAME_PORT;
+const static_port = use_proxy ? 9998 : 9999;
+
+
 // Methods to run at the start and end of the mocha testsuite run
 // https://mochajs.org/#global-setup-fixtures
-
 exports.mochaGlobalSetup = async function () {
   const workdir = 'dist_for_testing';
 
@@ -12,15 +24,39 @@ exports.mochaGlobalSetup = async function () {
   fse.mkdirpSync(workdir);
   fse.copySync('dist', workdir);
 
+  let api_endpoint = use_proxy ? '/' : 'https:/nominatim.openstreetmap.org/';
+
   fse.outputFile(workdir + '/theme/config.theme.js', `
-Nominatim_Config.Nominatim_API_Endpoint = 'https:/nominatim.openstreetmap.org/';
+Nominatim_Config.Nominatim_API_Endpoint = '${api_endpoint}';
   `);
 
+
   // 2. Start webserver pointing to build directory
   // https://github.com/nbluis/static-server#readme
-  this.server = new static_server({ port: 9999, rootPath: workdir });
-  await this.server.start();
-  console.log(`server running on port ${this.server.port}`);
+  this.static_http_server = new static_server({ port: static_port, rootPath: workdir });
+  await this.static_http_server.start();
+  console.log(`static server serving ${workdir} directory running on port ${static_port}`);
+
+  if (use_proxy) {
+    // https://github.com/http-party/node-http-proxy#readme
+    const proxy = await httpProxy.createProxy({ changeOrigin: true, followRedirects: true });
+    this.proxy = proxy;
+    console.log('proxy started');
+
+    this.proxy_server = await http.createServer((req, res) => {
+      // identify if the requests should be served by the (remote) API or static webserver
+      let api_url_match = req.url.match(/\/(\w+\.php)/);
+
+      let target = api_url_match
+        ? 'http://nominatim.openstreetmap.org/' + api_url_match[1]
+        : 'http://localhost:' + static_port;
+
+      // console.log(`http proxy ${req.url} => ${target + req.url}`)
+      return proxy.web(req, res, { target: target });
+    }).listen(testing_port);
+    console.log(`proxy server started on port ${testing_port}`);
+  }
+
 
   // 3. Create browser instance
   global.browser = await puppeteer.launch({
@@ -36,6 +72,13 @@ Nominatim_Config.Nominatim_API_Endpoint = 'https:/nominatim.openstreetmap.org/';
 exports.mochaGlobalTeardown = async function () {
   global.browser.close();
 
-  await this.server.stop();
-  console.log('server stopped');
+  await this.static_http_server.stop();
+  console.log('static server stopped');
+
+  if (use_proxy) {
+    await this.proxy.close();
+    console.log('proxy stopped');
+
+    this.proxy_server.close(() => console.log('proxy server stopped'));
+  }
 };