feat: [back] basic testing libraries installed

back-express/src/modules/users/__tests__/users.service.test.ts

@@ -0,0 +1,18 @@
+import UsersService from "../users.service";
+import { Role, User } from "../users.types";
+
+const user_list_mock: User[] = [
+    {
+        id: 1,
+        username: "test",
+        password: "asdf",
+        roles: [Role.Admin],
+        picture: "",
+        created_at: "now",
+    },
+];
+
+describe("users service", () => {
+    const usersService = new UsersService();
+    it("returns all users", () => {});
+});