getPosts

__test__/controllers/posts/getPosts.controller.test.ts

@@ -0,0 +1,53 @@
+import { type Request, type Response } from "express";
+import Post from "../../../src/models/post.model";
+import { getPosts } from "../../../src/controllers/posts";
+
+// Mocking the Post model
+jest.mock("../../../src/models/post.model", () => ({
+  find: jest.fn().mockReturnThis(),
+  exec: jest.fn(),
+}));
+
+describe("post controller", () => {
+  describe("getPosts", () => {
+    let req: Request;
+    let res: Response;
+
+    beforeEach(() => {
+      res = {
+        send: jest.fn(),
+        sendStatus: jest.fn(),
+      } as unknown as Response;
+    });
+
+    afterEach(() => {
+      jest.clearAllMocks();
+    });
+
+    test("should retrieve and send posts", async () => {
+      const posts = [{ title: "Post 1" }, { title: "Post 2" }];
+
+      // Mocking the Post.find().exec() method to return posts
+      (Post.find().exec as jest.Mock).mockResolvedValue(posts);
+
+      await getPosts(req, res);
+
+      expect(res.send).toHaveBeenCalledWith(posts);
+      expect(res.sendStatus).not.toHaveBeenCalled();
+    });
+
+    test("should send 500 status on error", async () => {
+      const errorMessage = "Internal server error";
+
+      // Mocking the Post.find().exec() method to throw an error
+      (Post.find().exec as jest.Mock).mockRejectedValue(
+        new Error(errorMessage)
+      );
+
+      await getPosts(req, res);
+
+      expect(res.sendStatus).toHaveBeenCalledWith(500);
+      expect(res.send).not.toHaveBeenCalled();
+    });
+  });
+});

package.json

@@ -7,7 +7,9 @@
     "build": "npx tsc",
     "start": "node dist/index.js",
     "dev": "env-cmd nodemon ./src/index.ts",
-    "test": "jest"
+    "test": "jest",
+    "prettier": "npx prettier --write .",
+    "lint": "npx eslint ."
   },
   "repository": {
     "type": "git",

src/controllers/posts/getPosts.controller.ts

@@ -0,0 +1,15 @@
+import { type Request, type Response } from "express";
+import Post from "../../models/post.model";
+
+// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
+const getPosts = async (_req: Request, res: Response) => {
+  try {
+    const query = Post.find({});
+    const posts = await query.exec();
+    res.send(posts);
+  } catch (error) {
+    res.sendStatus(500);
+  }
+};
+
+export default getPosts;

src/controllers/posts/index.ts

@@ -0,0 +1,3 @@
+import getPosts from "./getPosts.controller";
+
+export { getPosts };