build(aio): test Service Worker "routing" configuration (#21763)

PR Close #21763

aio/package.json

@@ -44,7 +44,7 @@
     "docs-watch": "node tools/transforms/authors-package/watchr.js",
     "docs-lint": "eslint --ignore-path=\"tools/transforms/.eslintignore\" tools/transforms",
     "docs-test": "node tools/transforms/test.js",
-    "deployment-config-test": "jasmine-ts tests/deployment/*.spec.ts",
+    "deployment-config-test": "jasmine-ts tests/deployment/**/*.spec.ts",
     "firebase-utils-test": "jasmine-ts tools/firebase-test-utils/*.spec.ts",
     "tools-lint": "tslint -c \"tools/tslint.json\" \"tools/firebase-test-utils/**/*.ts\"",
     "tools-test": "./scripts/deploy-to-firebase.test.sh && yarn docs-test && yarn boilerplate:test && jasmine tools/ng-packages-installer/index.spec.js && yarn firebase-utils-test",

aio/tests/deployment/helpers.ts

@@ -27,3 +27,23 @@ export function loadLegacyUrls() {
   const urls = readFileSync(pathToLegacyUrls, 'utf8').split('\n').map(line => line.split('\t'));
   return urls;
 }
+
+export function loadSWRoutes() {
+  const pathToSWManifest = path.resolve(__dirname, '../../ngsw-manifest.json');
+  const contents = cjson.load(pathToSWManifest);
+  const routes = contents.routing.routes;
+  return Object.keys(routes).map(route => {
+    const routeConfig = routes[route];
+    switch (routeConfig.match) {
+      case 'exact':
+        return (url) => url === route;
+      case 'prefix':
+        return (url) => url.startsWith(route);
+      case 'regex':
+        const regex = new RegExp(route);
+        return (url) => regex.test(url);
+      default:
+        throw new Error(`unknown route config: ${route} - ${routeConfig.match}`);
+    }
+  });
+}

aio/tests/deployment/testServiceWorkerRoutes.spec.ts

@@ -0,0 +1,33 @@
+import { loadLegacyUrls, loadSitemapUrls, loadSWRoutes } from './helpers';
+
+describe('service-worker routes', () => {
+
+  loadSitemapUrls().forEach(url => {
+    it('should process URLs in the Sitemap', () => {
+      const routes = loadSWRoutes();
+      expect(routes.some(test => test(url))).toBeTruthy(url);
+    });
+  });
+
+  loadLegacyUrls().forEach(urlPair => {
+    const url = urlPair[0];
+    it('should ignore legacy URLs that will be redirected', () => {
+      const routes = loadSWRoutes();
+      expect(routes.some(test => test(url))).toBeFalsy(url);
+    });
+  });
+
+  it('should ignore stackblitz URLs', () => {
+    const routes = loadSWRoutes();
+    expect(routes.some(test => test('/generated/live-examples/toh-pt6/stackblitz.html'))).toBeFalsy();
+    expect(routes.some(test => test('/generated/live-examples/toh-pt6/stackblitz'))).toBeFalsy();
+  });
+
+  it('should ignore URLs to files with extensions', () => {
+    const routes = loadSWRoutes();
+    expect(routes.some(test => test('/generated/zips/animations/animations.zip'))).toBeFalsy();
+    expect(routes.some(test => test('/generated/images/guide/animations/animation_auto.gif'))).toBeFalsy();
+    expect(routes.some(test => test('/generated/ie-polyfills.min.js'))).toBeFalsy();
+    expect(routes.some(test => test('/generated/docs/guide/animations.json'))).toBeFalsy();
+  });
+});