fix: tests for RestApplication

Tests for RestApplication

packages/rest/test/integration/rest.application.integration.ts

@@ -0,0 +1,48 @@
+// Copyright IBM Corp. 2017,2018. All Rights Reserved.
+// Node module: @loopback/rest
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {createRestAppClient, Client} from '@loopback/testlab';
+import {RestApplication} from '../..';
+import * as path from 'path';
+import * as fs from 'fs';
+
+const FIXTURES = path.resolve(__dirname, '../../../fixtures');
+
+describe('RestApplication (integration)', () => {
+  let restApp: RestApplication;
+  let client: Client;
+
+  beforeEach(givenAnApplication);
+  beforeEach(givenClient);
+  afterEach(async () => {
+    await restApp.stop();
+  });
+
+  it('serves static assets', async () => {
+    const root = FIXTURES;
+    const content = fs
+      .readFileSync(path.join(root, 'index.html'))
+      .toString('utf-8');
+    await client
+      .get('/index.html')
+      .expect(200)
+      .expect(content);
+  });
+
+  it('returns 404 if asset is not found', async () => {
+    await client.get('/404.html').expect(404);
+  });
+
+  function givenAnApplication() {
+    const root = FIXTURES;
+    restApp = new RestApplication({rest: {port: 0, host: '127.0.0.1'}});
+    restApp.static('/', root);
+  }
+
+  async function givenClient() {
+    await restApp.start();
+    return (client = createRestAppClient(restApp));
+  }
+});