refactor app.js

test not found routes

tests/integration/root.test.js

@@ -0,0 +1,37 @@
+const server = require('../../app.js');
+
+const request = require('supertest');
+const mongoose = require('mongoose');
+
+afterAll(async () => {
+  await mongoose.connection.dropDatabase();
+  await mongoose.disconnect();
+  await server.close();
+});
+
+describe('Test not found', () => {
+  test('respond not found with json', async () => {
+    const response = await request(server)
+      .get('/')
+      .set('Accept', 'application/json')
+      .expect(404)
+      .expect('Content-Type', 'application/json; charset=utf-8');
+    expect(response.body).toEqual({ error: 'Not found' });
+  });
+  test('respond not found with html', async () => {
+    const response = await request(server)
+      .get('/')
+      .set('Accept', 'text/html')
+      .expect(404)
+      .expect('Content-Type', 'text/html; charset=utf-8');
+    expect(response.text).toEqual('404');
+  });
+  test('respond not found with plain text', async () => {
+    const response = await request(server)
+      .get('/')
+      .set('Accept', 'text/plain')
+      .expect(404)
+      .expect('Content-Type', 'text/plain; charset=utf-8');
+    expect(response.text).toEqual('not found');
+  });
+});