add unit test and workflow

.github/workflows/build.yml

@@ -0,0 +1,35 @@
+name: Build Project
+on:
+  push:
+    branches:
+      - main
+      - 'release/**'
+      - 'feature/**'
+  pull_request_target:
+    branches:
+      - main
+      - 'release/**'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      # Setup
+      - uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18.x'
+          registry-url: 'https://registry.npmjs.org'
+      - name: Install Dependencies
+        run: yarn install --frozen-lockfile
+
+       # Tests
+      - name: Unit tests
+        run: yarn test:cov
+      - name: Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./coverage/lcov.info
+          fail_ci_if_error: true

.github/workflows/publish.yml

@@ -0,0 +1,21 @@
+name: Publish to NPM
+on:
+  release:
+    types: [created]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18.x'
+          registry-url: 'https://registry.npmjs.org'
+      - name: Install dependencies and build 🔧
+        run: yarn install --frozen-lockfile && yarn build
+      - name: Publish package on NPM 📦
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

codecov.yml

@@ -0,0 +1,10 @@
+coverage:
+  status:
+    project:
+      default:
+        target: 80%
+    patch:
+      default:
+        target: 80%
+
+comment: false

jest.config.json

@@ -4,11 +4,20 @@
         "json",
         "ts"
     ],
-    "rootDir": "src",
     "testRegex": ".spec.ts$",
     "transform": {
         "^.+\\.(t|j)s$": "ts-jest"
     },
-    "coverageDirectory": "../coverage",
+    "collectCoverageFrom": [
+        "**/*.(t|j)s",
+        "!**/*module.ts",
+        "!**/enum/*",
+        "!**/interface/*",
+        "!**/index.ts"
+    ],
+    "roots": [
+        "<rootDir>/src/"
+    ],
+    "coverageDirectory": "./coverage",
     "testEnvironment": "node"
 }

package.json

@@ -11,19 +11,22 @@
     "lint": "tslint -p tsconfig.json -c tslint.json",
     "test": "jest",
     "test:watch": "jest --watch",
-    "test:cov": "jest --coverage",
-    "test:e2e": "jest --config ./test/jest-e2e.json"
+    "test:cov": "jest --coverage"
   },
   "author": "arcphysx",
   "license": "MIT",
   "dependencies": {
     "@nestjs/common": "^10.2.7",
+    "@nestjs/core": "^10.2.8",
+    "reflect-metadata": "^0.1.13",
     "rxjs": "^7.8.1",
     "xendit-node": "^3.4.0"
   },
   "types": "dist/index.d.ts",
   "devDependencies": {
-    "@types/jest": "^29.5.6",
+    "@golevelup/ts-jest": "^0.4.0",
+    "@nestjs/testing": "^10.2.8",
+    "@types/jest": "^29.5.7",
     "@types/node": "^20.8.8",
     "@types/supertest": "^2.0.15",
     "jest": "^29.7.0",

src/xendit.service.spec.ts

@@ -0,0 +1,35 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { XenditService } from './xendit.service';
+import { createMock } from '@golevelup/ts-jest';
+import * as XND from 'xendit-node';
+
+jest.mock('xendit-node', ()=> {
+    return {
+        Xendit : jest.fn().mockImplementation(() => { return {} })
+    }
+});
+
+describe('XenditService', () => {
+    let xenditService: XenditService;
+
+    beforeEach(async () => {
+        const module: TestingModule = await Test.createTestingModule({
+            providers: [
+                XenditService,
+                { provide: XenditService, useValue: createMock(XND.Xendit) }
+            ],
+        }).compile();
+
+        xenditService = module.get<XenditService>(XenditService);
+    });
+
+    it('should be defined', () => {
+        expect(xenditService).toBeDefined();
+    });
+
+    it('should fill xendit-related property', () => {
+        let xendit = new XND.Xendit({secretKey: 'secret-key'})
+        let service = new XenditService(xendit)
+        expect(XND.Xendit).toHaveBeenCalledTimes(1)
+    });
+});