feat(api): setup nestjs

src/connections/connections.controller.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from "@nestjs/testing";
+import { ConnectionsController } from "./connections.controller";
+
+describe("Connections Controller", () => {
+  let controller: ConnectionsController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [ConnectionsController]
+    }).compile();
+
+    controller = module.get<ConnectionsController>(ConnectionsController);
+  });
+
+  it("should be defined", () => {
+    expect(controller).toBeDefined();
+  });
+});