@frost.js/test

Test utilities for Frost: run the real request pipeline against in-memory route modules — no filesystem, Vite, or browser required.

Install

npm install -D @frost.js/test

Example

import { describe, it, expect } from "vitest";
import { createTestHandler, callLoader } from "@frost.js/test";
import { discoverRoutes } from "@frost.js/router";
import * as page from "../src/app/page.js";

const handler = createTestHandler({
  routes: await discoverRoutes("src/app"),
  modules: { "src/app/page.tsx": page },
});

describe("GET /", () => {
  it("returns html", async () => {
    const res = await handler(new Request("http://localhost/"));
    expect(res.status).toBe(200);
  });
});

Also exports renderRoute, callAction, and RenderRouteOptions.

Docs

docs/api/test.md · Testing guide