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397import { test, expect } from "@playwright/test";
const BASE = "http://localhost:4174";
test.describe("App Router ISR", () => {
// ISR cache lifecycle tests (MISS → HIT → STALE → regen) are skipped in the
// dev server project because ISR caching is disabled in dev mode to match
// Next.js behavior (every request re-renders fresh). These tests should run
// against a production server E2E project instead.
test("first request returns ISR page", async ({
request,
}) => {
const res = await request.get(`${BASE}/isr-test`);
expect(res.status()).toBe(200);
const html = await res.text();
expect(html).toContain("App Router ISR Test");
expect(html).toContain("Hello from ISR");
});
test.skip("second request within TTL is a cache HIT with same timestamp", async ({
request,
}) => {
// SKIP: ISR cache is disabled in dev mode — no HIT/MISS/STALE semantics.
// This test should run against a production server.
const res1 = await request.get(`${BASE}/isr-test`);
const html1 = await res1.text();
const ts1 = html1.match(/data-testid="timestamp">(\d+)</)?.[1];
expect(ts1).toBeDefined();
const res2 = await request.get(`${BASE}/isr-test`);
const html2 = await res2.text();
const ts2 = html2.match(/data-testid="timestamp">(\d+)</)?.[1];
const cacheHeader = res2.headers()["x-vinext-cache"];
expect(cacheHeader).toBe("HIT");
expect(ts2).toBe(ts1);
});
test.skip("request after TTL expires returns STALE with same cached content", async ({
request,
}) => {
// SKIP: ISR cache is disabled in dev mode.
const res1 = await request.get(`${BASE}/isr-test`);
const html1 = await res1.text();
const ts1 = html1.match(/data-testid="timestamp">(\d+)</)?.[1];
expect(ts1).toBeDefined();
await new Promise((r) => setTimeout(r, 1500));
const res2 = await request.get(`${BASE}/isr-test`);
const html2 = await res2.text();
const ts2 = html2.match(/data-testid="timestamp">(\d+)</)?.[1];
const cacheHeader2 = res2.headers()["x-vinext-cache"];
expect(cacheHeader2).toBe("STALE");
expect(ts2).toBe(ts1);
});
test.skip("after STALE triggers regen, subsequent request is HIT", async ({
request,
}) => {
// SKIP: ISR cache is disabled in dev mode.
await request.get(`${BASE}/isr-test`);
await new Promise((r) => setTimeout(r, 1500));
const staleRes = await request.get(`${BASE}/isr-test`);
expect(staleRes.headers()["x-vinext-cache"]).toBe("STALE");
await new Promise((r) => setTimeout(r, 500));
const hitRes = await request.get(`${BASE}/isr-test`);
expect(hitRes.headers()["x-vinext-cache"]).toBe("HIT");
});
test("Cache-Control header includes s-maxage and stale-while-revalidate", async ({
request,
}) => {
const res = await request.get(`${BASE}/isr-test`);
const cc = res.headers()["cache-control"];
expect(cc).toBeDefined();
expect(cc).toContain("s-maxage=1");
expect(cc).toContain("stale-while-revalidate");
});
test("non-ISR page does not have ISR cache headers", async ({ request }) => {
const res = await request.get(`${BASE}/about`);
// About page has no `export const revalidate`, so no ISR headers
const cacheHeader = res.headers()["x-vinext-cache"];
// May be undefined or not present — either way, should not be MISS/HIT/STALE
if (cacheHeader) {
expect(["MISS", "HIT", "STALE"]).not.toContain(cacheHeader);
}
});
test("ISR page renders correctly in browser", async ({ page }) => {
await page.goto(`${BASE}/isr-test`);
await expect(page.getByTestId("isr-test-page")).toBeVisible();
await expect(page.locator("h1")).toHaveText("App Router ISR Test");
await expect(page.getByTestId("message")).toHaveText("Hello from ISR");
const tsText = await page.getByTestId("timestamp").textContent();
expect(Number(tsText)).toBeGreaterThan(0);
});
test("existing revalidate-test page (60s TTL) has correct Cache-Control", async ({
request,
}) => {
// The revalidate-test fixture uses revalidate=60
const res = await request.get(`${BASE}/revalidate-test`);
const cc = res.headers()["cache-control"];
expect(cc).toBeDefined();
expect(cc).toContain("s-maxage=60");
expect(cc).toContain("stale-while-revalidate");
});
});
/**
* OpenNext Compat: ISR dynamicParams cache header tests
*
* Ported from: https://github.com/opennextjs/opennextjs-cloudflare/blob/main/examples/e2e/app-router/e2e/isr.test.ts
*
* OpenNext verifies that `dynamicParams=true` pages return HIT for prebuilt paths,
* MISS for non-prebuilt, and 404 for notFound(). `dynamicParams=false` returns 404
* for unknown params. These tests verify the same cache header semantics in vinext.
*/
test.describe("ISR dynamicParams cache headers", () => {
test.describe("dynamicParams=false (products)", () => {
// Ref: opennextjs-cloudflare isr.test.ts "dynamicParams set to false"
test("should return 200 on a prebuilt path", async ({ request }) => {
// Products fixture uses dynamicParams=false with generateStaticParams [1, 2, 3]
// Note: products page has no `export const revalidate`, so ISR is not active
// and x-vinext-cache may not be set. We verify the page renders correctly.
const res = await request.get(`${BASE}/products/1`);
expect(res.status()).toBe(200);
const html = await res.text();
// React SSR inserts <!-- --> comment nodes between text and expressions,
// so "Product 1" may appear as "Product <!-- -->1" in raw HTML.
// lgtm[js/redos] — applied to trusted SSR output, not user input
expect(html).toMatch(/Product\s*(?:<!--.*?-->)*\s*1/);
});
test("should return 404 for a path not in generateStaticParams", async ({
request,
}) => {
// Ref: opennextjs-cloudflare isr.test.ts "should 404 for a path that is not found"
const res = await request.get(`${BASE}/products/999`);
expect(res.status()).toBe(404);
const cc = res.headers()["cache-control"];
if (cc) {
expect(cc).toContain("no-cache");
}
});
});
test.describe("force-dynamic page", () => {
// Ref: opennextjs-cloudflare — force-dynamic pages should never have ISR cache headers
test("should not have ISR cache header", async ({ request }) => {
const res = await request.get(`${BASE}/dynamic-test`);
expect(res.status()).toBe(200);
const cacheHeader = res.headers()["x-vinext-cache"];
expect(cacheHeader).toBeUndefined();
const cc = res.headers()["cache-control"];
if (cc) {
expect(cc).toContain("no-store");
}
});
test("should return different timestamps on each request", async ({
request,
}) => {
const res1 = await request.get(`${BASE}/dynamic-test`);
const html1 = await res1.text();
const ts1 = html1.match(/data-testid="timestamp">(\d+)</)?.[1];
expect(ts1).toBeDefined();
await new Promise((r) => setTimeout(r, 10));
const res2 = await request.get(`${BASE}/dynamic-test`);
const html2 = await res2.text();
const ts2 = html2.match(/data-testid="timestamp">(\d+)</)?.[1];
expect(Number(ts2)).toBeGreaterThan(Number(ts1));
});
});
test("404 response has private no-cache Cache-Control", async ({
request,
}) => {
// Ref: opennextjs-cloudflare isr.test.ts — 404 responses should have
// "private, no-cache, no-store, max-age=0, must-revalidate"
const res = await request.get(`${BASE}/products/999`);
expect(res.status()).toBe(404);
const cc = res.headers()["cache-control"];
if (cc) {
// Should not have s-maxage or stale-while-revalidate on 404
expect(cc).not.toContain("s-maxage");
expect(cc).not.toContain("stale-while-revalidate");
}
});
});
/**
* OpenNext Compat: revalidateTag / revalidatePath E2E lifecycle tests.
*
* Ported from: https://github.com/opennextjs/opennextjs-cloudflare/blob/main/examples/e2e/app-router/e2e/revalidateTag.test.ts
* Tests: ON-2 in TRACKING.md
*
* OpenNext verifies the full tag-based cache invalidation lifecycle:
* 1. Load tagged ISR page -> cached (HIT)
* 2. Call /api/revalidate-tag -> tag invalidated
* 3. Reload -> content changed (MISS)
* 4. Subsequent request -> back to HIT
* They also verify nested pages sharing the same tag are also invalidated.
*/
test.describe("revalidateTag / revalidatePath lifecycle (OpenNext compat)", () => {
// SKIP: These tests depend on ISR caching (MISS/HIT/STALE semantics) which is
// disabled in dev mode. They should run against a production server E2E project.
test.skip("revalidateTag invalidates cached page and regenerates", async ({
request,
}) => {
// Ref: opennextjs-cloudflare revalidateTag.test.ts "Revalidate tag"
test.setTimeout(30_000);
// Load the tagged ISR page to populate cache
const res1 = await request.get(`${BASE}/revalidate-tag-test`);
expect(res1.status()).toBe(200);
const html1 = await res1.text();
// React SSR may insert <!-- --> comment nodes between text and expressions,
// so use a flexible regex that allows anything between the tag and content.
// lgtm[js/redos] — applied to trusted SSR output, not user input
const reqId1 = html1.match(/data-testid="request-id"[^>]*>(?:<!--.*?-->)*RequestID:\s*(?:<!--.*?-->)*([a-z0-9]+)/)?.[1]
?? html1.match(/request-id[^>]*>[^<]*?([a-z0-9]{6,})/)?.[1];
expect(reqId1).toBeDefined();
// Load again to confirm it's cached (same request ID)
const res2 = await request.get(`${BASE}/revalidate-tag-test`);
const html2 = await res2.text();
// lgtm[js/redos] — applied to trusted SSR output, not user input
const reqId2 = html2.match(/data-testid="request-id"[^>]*>(?:<!--.*?-->)*RequestID:\s*(?:<!--.*?-->)*([a-z0-9]+)/)?.[1]
?? html2.match(/request-id[^>]*>[^<]*?([a-z0-9]{6,})/)?.[1];
const cacheHeader = res2.headers()["x-vinext-cache"];
if (cacheHeader) {
expect(["HIT", "STALE"]).toContain(cacheHeader);
}
expect(reqId2).toBe(reqId1);
// Call revalidateTag API
const tagRes = await request.get(`${BASE}/api/revalidate-tag`);
expect(tagRes.status()).toBe(200);
const tagText = await tagRes.text();
expect(tagText).toBe("ok");
// Reload — content should be different (cache was invalidated)
const res3 = await request.get(`${BASE}/revalidate-tag-test`);
const html3 = await res3.text();
// lgtm[js/redos] — applied to trusted SSR output, not user input
const reqId3 = html3.match(/data-testid="request-id"[^>]*>(?:<!--.*?-->)*RequestID:\s*(?:<!--.*?-->)*([a-z0-9]+)/)?.[1]
?? html3.match(/request-id[^>]*>[^<]*?([a-z0-9]{6,})/)?.[1];
// After invalidation, should get fresh content
expect(reqId3).not.toBe(reqId1);
// Cache header should be MISS after invalidation
const cacheHeader3 = res3.headers()["x-vinext-cache"];
if (cacheHeader3) {
expect(cacheHeader3).toBe("MISS");
}
});
test.skip("revalidatePath invalidates specific path", async ({ request }) => {
// Ref: opennextjs-cloudflare revalidateTag.test.ts "Revalidate path"
test.setTimeout(30_000);
// Load the page to populate cache
const res1 = await request.get(`${BASE}/revalidate-tag-test`);
expect(res1.status()).toBe(200);
const html1 = await res1.text();
// lgtm[js/redos] — applied to trusted SSR output, not user input
const reqId1 = html1.match(/data-testid="request-id"[^>]*>(?:<!--.*?-->)*RequestID:\s*(?:<!--.*?-->)*([a-z0-9]+)/)?.[1]
?? html1.match(/request-id[^>]*>[^<]*?([a-z0-9]{6,})/)?.[1];
expect(reqId1).toBeDefined();
// Wait a moment, then call revalidatePath
await new Promise((r) => setTimeout(r, 500));
const pathRes = await request.get(`${BASE}/api/revalidate-path`);
expect(pathRes.status()).toBe(200);
expect(await pathRes.text()).toBe("ok");
// Reload — content should be different
const res2 = await request.get(`${BASE}/revalidate-tag-test`);
const html2 = await res2.text();
// lgtm[js/redos] — applied to trusted SSR output, not user input
const reqId2 = html2.match(/data-testid="request-id"[^>]*>(?:<!--.*?-->)*RequestID:\s*(?:<!--.*?-->)*([a-z0-9]+)/)?.[1]
?? html2.match(/request-id[^>]*>[^<]*?([a-z0-9]{6,})/)?.[1];
expect(reqId2).not.toBe(reqId1);
});
test.skip("after invalidation + regen, subsequent request is HIT", async ({
request,
}) => {
// Ref: opennextjs-cloudflare revalidateTag.test.ts — after MISS, next request should be HIT
test.setTimeout(30_000);
// Populate cache
await request.get(`${BASE}/revalidate-tag-test`);
// Invalidate
await request.get(`${BASE}/api/revalidate-tag`);
// First request after invalidation — MISS (regen)
await request.get(`${BASE}/revalidate-tag-test`);
// Second request — should be HIT now
const hitRes = await request.get(`${BASE}/revalidate-tag-test`);
const cacheHeader = hitRes.headers()["x-vinext-cache"];
if (cacheHeader) {
expect(cacheHeader).toBe("HIT");
}
});
// Ref: opennextjs-cloudflare revalidateTag.test.ts — "nested page shares tag"
// Tests: ON-2 #2 in TRACKING.md
// Same blocker as parent: revalidateTag does not invalidate ISR cache in dev server.
test.fixme(
"nested page sharing same tag is also invalidated",
async ({ request }) => {
test.setTimeout(30_000);
// Load nested page to populate cache
const res1 = await request.get(`${BASE}/revalidate-tag-test/nested`);
expect(res1.status()).toBe(200);
const html1 = await res1.text();
const ts1 = html1.match(/Fetched time:\s*(\d+)/)?.[1];
expect(ts1).toBeDefined();
// Invalidate "test-data" tag (shared between parent and nested pages)
const tagRes = await request.get(`${BASE}/api/revalidate-tag`);
expect(tagRes.status()).toBe(200);
// Reload nested page — should get fresh content
const res2 = await request.get(`${BASE}/revalidate-tag-test/nested`);
const html2 = await res2.text();
const ts2 = html2.match(/Fetched time:\s*(\d+)/)?.[1];
expect(ts2).not.toBe(ts1);
},
);
});
/**
* OpenNext Compat: ISR data cache (unstable_cache) separation from page cache.
*
* Ported from: https://github.com/opennextjs/opennextjs-cloudflare/blob/main/examples/e2e/app-router/e2e/isr.test.ts
* Tests: ON-1 #8 in TRACKING.md
*
* Verifies that unstable_cache (data cache) works alongside ISR page caching.
*/
test.describe("unstable_cache data cache (OpenNext compat)", () => {
test("unstable_cache returns consistent data across requests", async ({
request,
}) => {
// Ref: opennextjs-cloudflare isr.test.ts — data cache separate from page cache
const res1 = await request.get(`${BASE}/unstable-cache-test`);
expect(res1.status()).toBe(200);
const html1 = await res1.text();
// React SSR inserts <!-- --> comment nodes between text and expressions
const value1 = html1.match(
/CachedValue:\s*(?:<!--[^>]*-->)*\s*([a-z0-9]{4,})/,
)?.[1];
expect(value1).toBeDefined();
// Second request should return the same cached value
const res2 = await request.get(`${BASE}/unstable-cache-test`);
const html2 = await res2.text();
const value2 = html2.match(
/CachedValue:\s*(?:<!--[^>]*-->)*\s*([a-z0-9]{4,})/,
)?.[1];
expect(value2).toBe(value1);
});
});