import { describe, expect, test } from "bun:test";
import { htmlResponse } from "../../src/lib/response.ts";

describe("htmlResponse cache policy", () => {
	test("declares a private policy when no edge cache is requested", () => {
		const res = htmlResponse("<p>hi</p>");
		expect(res.headers.get("Cache-Control")).toBe("private, no-store");
		expect(res.headers.get("Vary")).toBeNull();
	});

	test("declares a private policy for a bare status argument", () => {
		const res = htmlResponse("<p>nope</p>", 403);
		expect(res.status).toBe(403);
		expect(res.headers.get("Cache-Control")).toBe("private, no-store");
	});

	test("edgeCacheSeconds 0 is private, not silent", () => {
		const res = htmlResponse("<p>hi</p>", { edgeCacheSeconds: 0 });
		expect(res.headers.get("Cache-Control")).toBe("private, no-store");
	});

	test("a positive edge cache is public and varies on cookie", () => {
		const res = htmlResponse("<p>hi</p>", { edgeCacheSeconds: 60 });
		const cc = res.headers.get("Cache-Control") ?? "";
		expect(cc).toContain("public");
		expect(cc).toContain("s-maxage=60");
		expect(cc).not.toContain("no-store");
		expect(res.headers.get("Vary")).toContain("Cookie");
	});
});