✅ Add jest and supertest

Author: yona3

jest.config.ts

@@ -0,0 +1,10 @@
+export default {
+  roots: ["<rootDir>/src"],
+  testMatch: ["**/__tests__/**/*.+(ts|js)", "**/?(*.)+(spec|test).+(ts|js)"],
+  transform: {
+    "^.+\\.(ts|tsx)$": "ts-jest",
+  },
+  moduleNameMapper: {
+    "^@src/(.*)": "<rootDir>/src/$1",
+  },
+};

package.json

@@ -8,21 +8,25 @@
     "dev": "ts-node-dev --respawn --exit-child src/server.ts",
     "build": "tsc",
     "prisma:init": "prisma init",
-    "prisma:migrate": "prisma migrate dev"
+    "prisma:migrate": "prisma migrate dev",
+    "test": "jest"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "devDependencies": {
     "@types/express": "^4.17.12",
+    "@types/jest": "^26.0.24",
     "@types/node": "12",
+    "@types/supertest": "^2.0.11",
+    "jest": "^27.0.6",
+    "supertest": "^6.1.4",
+    "ts-jest": "^27.0.4",
     "ts-node-dev": "^1.1.6",
     "typescript": "^4.3.2"
   },
   "dependencies": {
     "@prisma/client": "^2.24.1",
-    "express": "^4.17.1",
-    "prisma": "^2.24.1",
     "@typescript-eslint/eslint-plugin": "^4.22.0",
     "@typescript-eslint/parser": "^4.22.0",
     "eslint": "^7.24.0",
@@ -31,6 +35,8 @@
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^5.1.0",
-    "prettier": "^2.2.1"
+    "express": "^4.17.1",
+    "prettier": "^2.2.1",
+    "prisma": "^2.24.1"
   }
 }

src/controllers/index.spec.ts

@@ -0,0 +1,8 @@
+import request from "supertest";
+import { app } from "../app";
+
+describe("indexController test", () => {
+  it("GET /", (done) => {
+    request(app).get("/").expect(200).expect({ msg: "hello!" }, done);
+  });
+});