doc(samples) add e2e test for 13-mongo-typeorm

see nestjs#1539

Author: kiwikern

sample/13-mongo-typeorm/.gitignore

@@ -13,9 +13,8 @@ npm-debug.log
 /quick-start
 
 # tests
-/test
 /coverage
 /.nyc_output
 
 # dist
-/dist
+/dist

sample/13-mongo-typeorm/test/jest-e2e.json

@@ -0,0 +1,13 @@
+{
+  "moduleFileExtensions": [
+    "js",
+    "json",
+    "ts"
+  ],
+  "rootDir": ".",
+  "testEnvironment": "node",
+  "testRegex": ".e2e-spec.ts$",
+  "transform": {
+    "^.+\\.(t|j)s$": "ts-jest"
+  }
+}

sample/13-mongo-typeorm/test/photos.e2e-spec.ts

@@ -0,0 +1,30 @@
+import { INestApplication } from '@nestjs/common';
+import { Test } from '@nestjs/testing';
+import * as request from 'supertest';
+import { ApplicationModule } from '../src/app.module';
+
+describe('Photos (e2e)', () => {
+  let app: INestApplication;
+
+  beforeAll(async () => {
+    const moduleFixture = await Test.createTestingModule({
+      imports: [ApplicationModule],
+    }).compile();
+    app = moduleFixture.createNestApplication();
+    await app.init();
+  });
+
+  afterAll(async () => {
+    if (app) {
+      await app.close();
+    }
+  });
+
+  it('should return an empty list of photos', async () => {
+    await request(app.getHttpServer())
+      .get('/photo')
+      .expect(200)
+      .expect(res => expect(res.body)
+        .toEqual([]));
+  });
+});