chore: api test first commit

Author: Chandra shekar Varkala

package-lock.json

@@ -66,6 +66,7 @@
     "@pyroscope/nodejs": "^0.2.6",
     "@rudderstack/integrations-lib": "^0.2.2",
     "@rudderstack/workflow-engine": "^0.7.2",
+    "@shopify/jest-koa-mocks": "^5.1.1",
     "ajv": "^8.12.0",
     "ajv-draft-04": "^1.0.0",
     "ajv-formats": "^2.1.1",

package.json

@@ -0,0 +1,187 @@
+import request from 'supertest';
+import { createHttpTerminator } from 'http-terminator';
+import Koa from 'koa';
+import bodyParser from 'koa-bodyparser';
+import { applicationRoutes } from '../../routes';
+import { NativeIntegrationDestinationService } from '../../services/destination/nativeIntegration';
+import { ServiceSelector } from '../../helpers/serviceSelector';
+
+let server: any;
+const OLD_ENV = process.env;
+
+beforeAll(async () => {
+  process.env = { ...OLD_ENV }; // Make a copy
+  const app = new Koa();
+  app.use(
+    bodyParser({
+      jsonLimit: '200mb',
+    }),
+  );
+  applicationRoutes(app);
+  server = app.listen(9090);
+});
+
+afterAll(async () => {
+  process.env = OLD_ENV; // Restore old environment
+  const httpTerminator = createHttpTerminator({
+    server,
+  });
+  await httpTerminator.terminate();
+});
+
+afterEach(() => {
+  jest.clearAllMocks();
+});
+
+const getData = () => {
+  return { body: { JSON: { a: 'b' } }, metadata: [{ a1: 'b1' }], destinationConfig: { a2: 'b2' } };
+};
+
+describe('Delivery controller tests', () => {
+  describe('Delivery V0 tests', () => {
+    test('successful delivery', async () => {
+      const testOutput = { status: 200, message: 'success' };
+      const mockDestinationService = new NativeIntegrationDestinationService();
+      mockDestinationService.deliver = jest
+        .fn()
+        .mockImplementation((event, destinationType, requestMetadata, version) => {
+          expect(event).toEqual(getData());
+          expect(destinationType).toEqual('__rudder_test__');
+          expect(version).toEqual('v0');
+          return testOutput;
+        });
+      const getNativeDestinationServiceSpy = jest
+        .spyOn(ServiceSelector, 'getNativeDestinationService')
+        .mockImplementation(() => {
+          return mockDestinationService;
+        });
+
+      const response = await request(server)
+        .post('/v0/destinations/__rudder_test__/proxy')
+        .set('Accept', 'application/json')
+        .send(getData());
+
+      expect(response.status).toEqual(200);
+      expect(response.body).toEqual({ output: testOutput });
+
+      expect(response.header['apiversion']).toEqual('2');
+
+      expect(getNativeDestinationServiceSpy).toHaveBeenCalledTimes(1);
+      expect(mockDestinationService.deliver).toHaveBeenCalledTimes(1);
+    });
+
+    test('delivery failure', async () => {
+      const mockDestinationService = new NativeIntegrationDestinationService();
+      mockDestinationService.deliver = jest
+        .fn()
+        .mockImplementation((event, destinationType, requestMetadata, version) => {
+          expect(event).toEqual(getData());
+          expect(destinationType).toEqual('__rudder_test__');
+          expect(version).toEqual('v0');
+          throw new Error('test error');
+        });
+      const getNativeDestinationServiceSpy = jest
+        .spyOn(ServiceSelector, 'getNativeDestinationService')
+        .mockImplementation(() => {
+          return mockDestinationService;
+        });
+
+      const response = await request(server)
+        .post('/v0/destinations/__rudder_test__/proxy')
+        .set('Accept', 'application/json')
+        .send(getData());
+
+      const expectedResp = {
+        output: {
+          message: 'test error',
+          statTags: {
+            errorCategory: 'transformation',
+          },
+          destinationResponse: '',
+          status: 500,
+        },
+      };
+      expect(response.status).toEqual(500);
+      expect(response.body).toEqual(expectedResp);
+
+      expect(response.header['apiversion']).toEqual('2');
+
+      expect(getNativeDestinationServiceSpy).toHaveBeenCalledTimes(1);
+      expect(mockDestinationService.deliver).toHaveBeenCalledTimes(1);
+    });
+  });
+
+  describe('Delivery V1 tests', () => {
+    test('successful delivery', async () => {
+      const testOutput = { status: 200, message: 'success' };
+      const mockDestinationService = new NativeIntegrationDestinationService();
+      mockDestinationService.deliver = jest
+        .fn()
+        .mockImplementation((event, destinationType, requestMetadata, version) => {
+          expect(event).toEqual(getData());
+          expect(destinationType).toEqual('__rudder_test__');
+          expect(version).toEqual('v1');
+          return testOutput;
+        });
+      const getNativeDestinationServiceSpy = jest
+        .spyOn(ServiceSelector, 'getNativeDestinationService')
+        .mockImplementation(() => {
+          return mockDestinationService;
+        });
+
+      const response = await request(server)
+        .post('/v1/destinations/__rudder_test__/proxy')
+        .set('Accept', 'application/json')
+        .send(getData());
+
+      expect(response.status).toEqual(200);
+      expect(response.body).toEqual({ output: testOutput });
+
+      expect(response.header['apiversion']).toEqual('2');
+
+      expect(getNativeDestinationServiceSpy).toHaveBeenCalledTimes(1);
+      expect(mockDestinationService.deliver).toHaveBeenCalledTimes(1);
+    });
+
+    test('delivery failure', async () => {
+      const mockDestinationService = new NativeIntegrationDestinationService();
+      mockDestinationService.deliver = jest
+        .fn()
+        .mockImplementation((event, destinationType, requestMetadata, version) => {
+          expect(event).toEqual(getData());
+          expect(destinationType).toEqual('__rudder_test__');
+          expect(version).toEqual('v1');
+          throw new Error('test error');
+        });
+      const getNativeDestinationServiceSpy = jest
+        .spyOn(ServiceSelector, 'getNativeDestinationService')
+        .mockImplementation(() => {
+          return mockDestinationService;
+        });
+
+      const response = await request(server)
+        .post('/v1/destinations/__rudder_test__/proxy')
+        .set('Accept', 'application/json')
+        .send(getData());
+
+      const expectedResp = {
+        output: {
+          message: 'test error',
+          statTags: {
+            errorCategory: 'transformation',
+          },
+          authErrorCategory: '',
+          status: 500,
+          response: [{ error: 'test error', metadata: { a1: 'b1' }, statusCode: 500 }],
+        },
+      };
+      expect(response.status).toEqual(500);
+      expect(response.body).toEqual(expectedResp);
+
+      expect(response.header['apiversion']).toEqual('2');
+
+      expect(getNativeDestinationServiceSpy).toHaveBeenCalledTimes(1);
+      expect(mockDestinationService.deliver).toHaveBeenCalledTimes(1);
+    });
+  });
+});