implemented e2e test

test/app.e2e-spec.ts

@@ -1,3 +1,4 @@
+import { setTimeout as wait } from "timers/promises";
 import { Test, TestingModule } from '@nestjs/testing';
 import { INestApplication } from '@nestjs/common';
 import * as request from 'supertest';
@@ -15,10 +16,29 @@ describe('AppController (e2e)', () => {
     await app.init();
   });
 
-  it('/hello-world (GET)', () => {
-    return request(app.getHttpServer())
-      .get('/hello-world')
-      .expect(200)
-      .expect('Hello World!');
-  });
+  afterEach(async () => {
+    await app.close();
+  })
+
+  it('stores a job for suricrasia.online and completes it', async () => {
+    const supertest = request(app.getHttpServer())
+
+    const jobCreateResponse = await supertest
+      .post('/screenshots')
+      .send({ pageUrl: 'https://suricrasia.online', imageType: 'png' })
+
+    expect(jobCreateResponse.status).toEqual(201)
+    expect(jobCreateResponse.body.jobId).toBeDefined()
+    const jobId = jobCreateResponse.body.jobId
+    await wait(5000)
+
+    const jobStatusResponse = await supertest.get(`/screenshots/${jobId}`)
+    expect(jobStatusResponse.status).toEqual(200)
+    expect(jobStatusResponse.body.status).toBeDefined()
+    expect(jobStatusResponse.body.status).toEqual('completed')
+
+    const jobResultResponse = await supertest.get(`/screenshots/${jobId}/result`)
+    expect(jobResultResponse.status).toEqual(200)
+    expect(jobResultResponse.body).toMatchImageSnapshot()
+  }, 10000);
 });

test/jest-e2e.json

@@ -1,6 +1,9 @@
 {
   "moduleFileExtensions": ["js", "json", "ts"],
   "rootDir": ".",
+  "setupFilesAfterEnv": [
+    "<rootDir>/setup.jest.ts"
+  ],
   "testEnvironment": "node",
   "testRegex": ".e2e-spec.ts$",
   "transform": {

test/setup.jest.ts

@@ -0,0 +1,3 @@
+import { toMatchImageSnapshot } from 'jest-image-snapshot';
+
+expect.extend({ toMatchImageSnapshot });