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import { describe, it, expect } from "vitest";
import worker, { mimeFor, keyFor } from "../src/index";
import type { Env } from "../src/index";
describe("preview worker helpers (§10)", () => {
it("derives R2 key from path, defaulting directory to index.html", () => {
expect(keyFor("/pr-42/en/rolling/")).toBe("pr-42/en/rolling/index.html");
expect(keyFor("/pr-42/en/rolling/cli/index.html")).toBe("pr-42/en/rolling/cli/index.html");
});
it("extension→MIME fallback map (nosniff-safe)", () => {
expect(mimeFor("a.html")).toBe("text/html; charset=utf-8");
expect(mimeFor("a.css")).toBe("text/css");
expect(mimeFor("a.js")).toBe("text/javascript");
expect(mimeFor("a.json")).toBe("application/json");
expect(mimeFor("a.svg")).toBe("image/svg+xml");
expect(mimeFor("a.woff2")).toBe("font/woff2");
expect(mimeFor("a.unknown")).toBe("application/octet-stream");
});
});
// Fake R2Bucket mock following the makeEnv() precedent in apex/test/router.test.ts —
// only the `get` surface the handler consumes; miniflare's real R2 not needed here.
function makeEnv(objects: Record<string, { body: string; contentType?: string }>): Env {
return {
PREVIEWS: {
get: async (key: string) => {
const hit = objects[key];
if (!hit) return null;
return {
body: hit.body,
httpMetadata: hit.contentType ? { contentType: hit.contentType } : undefined,
};
},
} as unknown as R2Bucket,
};
}
const get = (path: string, env: Env) =>
worker.fetch(new Request(`https://docs-preview.vyos.io${path}`), env);
describe("preview worker fetch entrypoint (§10)", () => {
it("serves a found object with uploader contentType + noindex/no-store/nosniff headers", async () => {
const env = makeEnv({
"pr-42/en/rolling/index.html": { body: "<h1>preview</h1>", contentType: "text/html; charset=utf-8" },
});
const r = await get("/pr-42/en/rolling/", env);
expect(r.status).toBe(200);
expect(await r.text()).toBe("<h1>preview</h1>");
expect(r.headers.get("content-type")).toBe("text/html; charset=utf-8");
expect(r.headers.get("X-Robots-Tag")).toBe("noindex");
expect(r.headers.get("Cache-Control")).toBe("no-store");
expect(r.headers.get("X-Content-Type-Options")).toBe("nosniff");
});
it("missing object → 404 with noindex AND no-store (404s must never be cached)", async () => {
const r = await get("/pr-42/en/rolling/missing.html", makeEnv({}));
expect(r.status).toBe(404);
expect(r.headers.get("X-Robots-Tag")).toBe("noindex");
expect(r.headers.get("Cache-Control")).toBe("no-store");
});
it("object without httpMetadata.contentType falls back to mimeFor(key)", async () => {
const env = makeEnv({ "pr-42/en/rolling/style.css": { body: "body{}" } });
const r = await get("/pr-42/en/rolling/style.css", env);
expect(r.status).toBe(200);
expect(r.headers.get("content-type")).toBe("text/css");
});
it("extensionless directory URL with no trailing slash serves the directory's index.html", async () => {
const env = makeEnv({
"pr-42/en/rolling/cli/index.html": { body: "<h1>cli</h1>", contentType: "text/html; charset=utf-8" },
});
const r = await get("/pr-42/en/rolling/cli", env);
expect(r.status).toBe(200);
expect(await r.text()).toBe("<h1>cli</h1>");
expect(r.headers.get("content-type")).toBe("text/html; charset=utf-8");
});
it("extensionless directory URL with a dotted version segment earlier in the path still probes index.html (dot-check is last-segment-only)", async () => {
const env = makeEnv({
"pr-42/en/1.4/cli/index.html": { body: "<h1>cli 1.4</h1>", contentType: "text/html; charset=utf-8" },
});
const r = await get("/pr-42/en/1.4/cli", env);
expect(r.status).toBe(200);
expect(await r.text()).toBe("<h1>cli 1.4</h1>");
expect(r.headers.get("content-type")).toBe("text/html; charset=utf-8");
});
it("a transient R2/binding error on either probe degrades to a controlled 503 (never an unhandled exception)", async () => {
const throwingEnv: Env = {
PREVIEWS: { get: async () => { throw new Error("R2 unavailable"); } } as unknown as R2Bucket,
};
const r = await get("/pr-42/en/rolling/cli", throwingEnv);
expect(r.status).toBe(503);
expect(r.headers.get("X-Robots-Tag")).toBe("noindex");
expect(r.headers.get("Cache-Control")).toBe("no-store");
});
});
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