liqa/test/browser.controller.spec.ts

import { INestApplication } from "@nestjs/common";
import { getRepositoryToken } from "@nestjs/typeorm";
import request from "supertest";
import { buildTestApp } from "./app.harness";
import { SessionEntity } from "../src/session/session.entity";
import { Repository } from "typeorm";

/**
 * Browser controller integration tests.
 *
 * POST /open and POST /exec need a running Playwright browser.  We test
 * validation rejections (no browser launched) and session-not-found paths,
 * which are safe to run in a headless CI environment.
 */
describe("BrowserController", () => {
  let app: INestApplication;
  let sessionRepo: Repository<SessionEntity>;

  const FAKE_SESSION = "test-browser-session";

  beforeAll(async () => {
    app = await buildTestApp();
    sessionRepo = app.get<Repository<SessionEntity>>(
      getRepositoryToken(SessionEntity),
    );

    // Seed a session with minimal but valid JSON so the browser code can
    // deserialise it (it will still fail to open a real page, tested separately)
    await sessionRepo.save(
      sessionRepo.create({
        sessionName: FAKE_SESSION,
        token: "fake-token",
        cookies: "[]",
        localStorage: "{}",
      }),
    );
  });

  afterAll(async () => {
    await app.close();
  });

  // ── POST /open ─────────────────────────────────────────────────────────────

  describe("POST /open", () => {
    it("returns 400 when body is empty", async () => {
      await request(app.getHttpServer()).post("/open").send({}).expect(400);
    });

    it("returns 400 when url is missing", async () => {
      await request(app.getHttpServer())
        .post("/open")
        .send({ sessionName: FAKE_SESSION })
        .expect(400);
    });

    it("returns 404 when session does not exist", async () => {
      await request(app.getHttpServer())
        .post("/open")
        .send({ sessionName: "no-such-session", url: "https://example.com" })
        .expect(404);
    });

    it("succeeds without a session (sessionless open)", async () => {
      const res = await request(app.getHttpServer())
        .post("/open")
        .send({ url: "https://example.com" })
        .expect(201);
      expect(res.body).toMatchObject({
        url: expect.any(String),
        title: expect.any(String),
        content: expect.any(String),
      });
    });

    it("returns only selector content when selector is provided", async () => {
      const res = await request(app.getHttpServer())
        .post("/open")
        .send({ url: "https://example.com", selector: "#mock" })
        .expect(201);
      expect(res.body.content).toBe('<div id="mock">mock content</div>');
    });

    it("returns selector text content in reader mode", async () => {
      const res = await request(app.getHttpServer())
        .post("/open")
        .send({
          url: "https://example.com",
          selector: "#mock",
          readerMode: true,
        })
        .expect(201);
      expect(res.body.content).toBe("mock content");
    });
  });

  // ── POST /exec ─────────────────────────────────────────────────────────────

  describe("POST /exec", () => {
    it("returns 400 when body is empty", async () => {
      await request(app.getHttpServer()).post("/exec").send({}).expect(400);
    });

    it("returns 400 when code is missing", async () => {
      await request(app.getHttpServer())
        .post("/exec")
        .send({ sessionName: FAKE_SESSION })
        .expect(400);
    });

    it("returns 400 when code has a syntax error", async () => {
      await request(app.getHttpServer())
        .post("/exec")
        .send({ sessionName: FAKE_SESSION, code: "this is not valid {{{" })
        .expect(400);
    });

    it("returns 404 when session does not exist", async () => {
      await request(app.getHttpServer())
        .post("/exec")
        .send({ sessionName: "no-such-session", code: "return 1;" })
        .expect(404);
    });

    it("succeeds without a session (sessionless exec)", async () => {
      const res = await request(app.getHttpServer())
        .post("/exec")
        .send({ code: "return 42;" })
        .expect(201);
      expect(res.body).toEqual({ result: 42 });
    });
  });
});