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import opine from "../../mod.ts";import { describe, it } from "../utils.ts";
describe("app.listen()", () => {  describe("when passing a port", () => {    it("should wrap with an HTTP server", () => {      const app = opine();
      app.get("/deno", function (_req, res) {        res.end("Hello Deno!");      });
      const server = app.listen(9999);      server.close();    });  });
  describe("when passing an address", () => {    it("should wrap with an HTTP server", () => {      const app = opine();
      app.get("/deno", function (_req, res) {        res.end("Hello Deno!");      });
      const server = app.listen("localhost:9999");      server.close();    });  });
  describe("when passing an object", () => {    it("should wrap with an HTTP server", () => {      const app = opine();
      app.get("/deno", function (_req, res) {        res.end("Hello Deno!");      });
      const server = app.listen({ port: 9999 });      server.close();    });  });});