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1454import { describe, it, expect, beforeAll, afterAll, vi } from "vitest";
import { createServer, build, type ViteDevServer } from "vite";
import path from "node:path";
import fs from "node:fs";
import { pathToFileURL } from "node:url";
import vinext from "../packages/vinext/src/index.js";
import { PAGES_FIXTURE_DIR, startFixtureServer } from "./helpers.js";
const FIXTURE_DIR = PAGES_FIXTURE_DIR;
describe("Pages Router integration", () => {
let server: ViteDevServer;
let baseUrl: string;
beforeAll(async () => {
({ server, baseUrl } = await startFixtureServer(FIXTURE_DIR));
});
afterAll(async () => {
await server?.close();
});
it("renders the index page with correct HTML", async () => {
const res = await fetch(`${baseUrl}/`);
expect(res.status).toBe(200);
expect(res.headers.get("content-type")).toContain("text/html");
const html = await res.text();
expect(html).toContain("Hello, vinext!");
expect(html).toContain("This is a Pages Router app running on Vite.");
expect(html).toContain("Go to About");
});
it("resolves tsconfig path aliases (@/ imports)", async () => {
const res = await fetch(`${baseUrl}/alias-test`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Pages Alias Test");
// Component imported via @/components/heavy
expect(html).toContain("Loaded via alias");
});
it("renders the about page", async () => {
const res = await fetch(`${baseUrl}/about`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
expect(html).toContain("This is the about page.");
});
it("renders the SSR page with getServerSideProps data", async () => {
const res = await fetch(`${baseUrl}/ssr`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Server-Side Rendered");
expect(html).toContain("Hello from getServerSideProps");
// Should have a timestamp
expect(html).toContain("Rendered at:");
});
it("getServerSideProps returning notFound renders custom 404 page", async () => {
const res = await fetch(`${baseUrl}/posts/missing`);
expect(res.status).toBe(404);
const html = await res.text();
// Should render the custom 404 page (pages/404.tsx), not plain text
expect(html).toContain("Page Not Found");
// Should be wrapped in the _app layout
expect(html).toContain("app-wrapper");
});
it("renders dynamic routes with params", async () => {
const res = await fetch(`${baseUrl}/posts/42`);
expect(res.status).toBe(200);
const html = await res.text();
// React SSR inserts comment nodes between text and expressions:
// "Post: <!-- -->42" — so we match with a regex instead
expect(html).toMatch(/Post:\s*(<!--\s*-->)?\s*42/);
expect(html).toContain("post-title");
// Router should have correct pathname and query during SSR
expect(html).toMatch(/Pathname:\s*(<!--\s*-->)?\s*\/posts\/42/);
expect(html).toMatch(/Query ID:\s*(<!--\s*-->)?\s*42/);
});
it("returns 404 with custom 404 page for non-existent routes", async () => {
const res = await fetch(`${baseUrl}/nonexistent`);
expect(res.status).toBe(404);
const html = await res.text();
// Should render the custom 404 page
expect(html).toContain("404 - Page Not Found");
expect(html).toContain("does not exist");
});
it("renders next/head tags in SSR HTML <head>", async () => {
const res = await fetch(`${baseUrl}/`);
const html = await res.text();
// Index page has <Head><title>Hello vinext</title></Head>
// This should appear in the actual <head> of the HTML
expect(html).toContain("<title");
expect(html).toContain("Hello vinext");
// The title tag should be in <head>, not in <body>
const headSection = html.split("</head>")[0];
expect(headSection).toContain("Hello vinext");
});
it("includes __NEXT_DATA__ script tag", async () => {
const res = await fetch(`${baseUrl}/`);
const html = await res.text();
expect(html).toContain("__NEXT_DATA__");
});
it("includes the Vite client script for HMR", async () => {
const res = await fetch(`${baseUrl}/`);
const html = await res.text();
expect(html).toContain("@vite/client");
});
it("wraps pages with custom _app.tsx", async () => {
const res = await fetch(`${baseUrl}/`);
const html = await res.text();
// _app.tsx wraps with an #app-wrapper div and a global nav
expect(html).toContain("app-wrapper");
expect(html).toContain("My App");
});
it("_app.tsx wrapping works on all pages", async () => {
const res = await fetch(`${baseUrl}/about`);
const html = await res.text();
expect(html).toContain("app-wrapper");
expect(html).toContain("About");
});
it("uses custom _document.tsx for HTML shell", async () => {
const res = await fetch(`${baseUrl}/`);
const html = await res.text();
// Custom _document sets lang="en" on <html>
expect(html).toContain('lang="en"');
// Custom _document adds a meta description
expect(html).toContain("A vinext test app");
// Custom _document sets className on body
expect(html).toContain("custom-body");
});
// --- API Routes ---
it("handles API routes returning JSON", async () => {
const res = await fetch(`${baseUrl}/api/hello`);
expect(res.status).toBe(200);
expect(res.headers.get("content-type")).toContain("application/json");
const data = await res.json();
expect(data).toEqual({ message: "Hello from API!" });
});
it("handles dynamic API routes with query params", async () => {
const res = await fetch(`${baseUrl}/api/users/123`);
expect(res.status).toBe(200);
const data = await res.json();
expect(data).toEqual({ user: { id: "123", name: "User 123" } });
});
it("returns 404 for non-existent API routes", async () => {
const res = await fetch(`${baseUrl}/api/nonexistent`);
expect(res.status).toBe(404);
});
// --- Client Hydration ---
it("includes hydration script for client-side rendering", async () => {
const res = await fetch(`${baseUrl}/`);
const html = await res.text();
// Vite extracts inline module scripts into html-proxy modules.
// The hydration script becomes a <script type="module" src="...html-proxy...">
expect(html).toMatch(/html-proxy.*\.js/);
});
// --- Catch-all Routes ---
it("renders catch-all routes with multiple segments", async () => {
const res = await fetch(`${baseUrl}/docs/getting-started/install`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Docs");
expect(html).toMatch(/Path:\s*(<!--\s*-->)?\s*getting-started\/install/);
});
it("renders catch-all routes with single segment", async () => {
const res = await fetch(`${baseUrl}/docs/intro`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toMatch(/Path:\s*(<!--\s*-->)?\s*intro/);
});
// --- Hydration ---
// --- next.config.js ---
it("applies redirects from next.config.js", async () => {
const res = await fetch(`${baseUrl}/old-about`, { redirect: "manual" });
expect(res.status).toBe(308);
expect(res.headers.get("location")).toBe("/about");
});
it("applies custom headers from next.config.js", async () => {
const res = await fetch(`${baseUrl}/api/hello`);
expect(res.headers.get("x-custom-header")).toBe("vinext");
});
it("applies beforeFiles rewrites from next.config.js", async () => {
const res = await fetch(`${baseUrl}/before-rewrite`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
});
it("applies afterFiles rewrites from next.config.js", async () => {
const res = await fetch(`${baseUrl}/after-rewrite`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
});
it("applies fallback rewrites from next.config.js", async () => {
const res = await fetch(`${baseUrl}/fallback-rewrite`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
});
// ── Percent-encoded paths should be decoded before config matching ──
it("percent-encoded redirect path is decoded before config matching (dev)", async () => {
// /%6Fld-%61bout decodes to /old-about → /about (permanent redirect)
const res = await fetch(`${baseUrl}/%6Fld-%61bout`, { redirect: "manual" });
expect(res.status).toBe(308);
expect(res.headers.get("location")).toBe("/about");
});
it("percent-encoded header path is decoded before config matching (dev)", async () => {
// /%61pi/hello decodes to /api/hello → X-Custom-Header: vinext
const res = await fetch(`${baseUrl}/%61pi/hello`);
expect(res.headers.get("x-custom-header")).toBe("vinext");
});
it("percent-encoded rewrite path is decoded before config matching (dev)", async () => {
// /%62efore-rewrite decodes to /before-rewrite → /about
const res = await fetch(`${baseUrl}/%62efore-rewrite`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
});
// --- getStaticPaths ---
it("renders pages with getStaticPaths + getStaticProps", async () => {
const res = await fetch(`${baseUrl}/blog/hello-world`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Hello World");
expect(html).toContain("Blog post slug:");
expect(html).toMatch(/slug:\s*(<!--\s*-->)?\s*hello-world/);
});
it("returns 404 for paths not in getStaticPaths when fallback is false", async () => {
const res = await fetch(`${baseUrl}/blog/nonexistent-post`);
expect(res.status).toBe(404);
});
it("renders pre-listed paths with getStaticPaths fallback: blocking", async () => {
const res = await fetch(`${baseUrl}/articles/1`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("First Article");
expect(html).toMatch(/Article ID:\s*(<!--\s*-->)?\s*1/);
});
it("renders unlisted paths with getStaticPaths fallback: blocking (on-demand SSR)", async () => {
// Article 99 is not in getStaticPaths but fallback: blocking allows rendering
const res = await fetch(`${baseUrl}/articles/99`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Article 99");
expect(html).toMatch(/Article ID:\s*(<!--\s*-->)?\s*99/);
});
// --- next/dynamic ---
it("renders dynamically imported components during SSR", async () => {
const res = await fetch(`${baseUrl}/dynamic-page`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Dynamic Import Page");
// The heavy component should be rendered server-side (ssr: true by default)
expect(html).toContain("Heavy Component");
expect(html).toContain("Loaded dynamically");
});
// --- Hydration ---
// --- next/config ---
it("renders pages that use next/config getConfig()", async () => {
const res = await fetch(`${baseUrl}/config-test`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Config Test");
// publicRuntimeConfig is empty by default, so it should show the fallback
// React SSR inserts <!-- --> between text and expressions
expect(html).toMatch(/App:.*default-app/);
});
// --- next/script ---
it("renders Script with beforeInteractive strategy as <script> tag in SSR", async () => {
const res = await fetch(`${baseUrl}/script-test`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Script Test");
expect(html).toContain("Page with scripts");
// beforeInteractive should render a <script> tag in the SSR output
expect(html).toContain('src="https://example.com/analytics.js"');
});
// --- next/server ---
it("resolves next/server imports in API routes", async () => {
const res = await fetch(`${baseUrl}/api/middleware-test`);
expect(res.status).toBe(200);
const data = await res.json();
expect(data).toEqual({ ok: true, message: "middleware-test works" });
});
// --- Middleware ---
it("middleware adds custom headers to responses", async () => {
const res = await fetch(`${baseUrl}/`);
expect(res.status).toBe(200);
expect(res.headers.get("x-custom-middleware")).toBe("active");
});
it("middleware redirects /old-page to /about", async () => {
const res = await fetch(`${baseUrl}/old-page`, { redirect: "manual" });
expect(res.status).toBe(307);
expect(res.headers.get("location")).toContain("/about");
});
it("middleware rewrites /rewritten to /ssr", async () => {
const res = await fetch(`${baseUrl}/rewritten`);
expect(res.status).toBe(200);
const html = await res.text();
// Should get the SSR page content (rewritten from /rewritten to /ssr)
expect(html).toContain("Server-Side Rendered");
});
it("middleware blocks /blocked with 403", async () => {
const res = await fetch(`${baseUrl}/blocked`);
expect(res.status).toBe(403);
const text = await res.text();
expect(text).toContain("Access Denied");
});
// --- Hydration ---
it("hydration proxy script is fetchable", async () => {
// Fetch the index page, find the proxy script URL, fetch it,
// and verify it contains our hydration code
const res = await fetch(`${baseUrl}/`);
const html = await res.text();
const proxyMatch = html.match(/src="([^"]*html-proxy[^"]*)"/);
expect(proxyMatch).toBeTruthy();
const scriptRes = await fetch(`${baseUrl}${proxyMatch![1]}`);
expect(scriptRes.status).toBe(200);
const scriptContent = await scriptRes.text();
// The proxy module should contain our hydration imports
expect(scriptContent).toContain("hydrateRoot");
expect(scriptContent).toContain("__NEXT_DATA__");
});
it("renders Suspense + React.lazy content via streaming SSR", async () => {
// With progressive streaming SSR (onShellReady), if the Suspense
// content resolves before the shell finishes, React inlines it
// directly (no fallback in the wire HTML). If it resolves after,
// the fallback appears with streaming replacement scripts.
// Our lazy component resolves synchronously in tests.
const res = await fetch(`${baseUrl}/suspense-test`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Suspense Test");
// The lazy component's content should be in the response
expect(html).toContain("Hello from lazy component");
});
// --- getStaticPaths tests ---
it("renders blog post with getStaticPaths fallback: false for listed path", async () => {
const res = await fetch(`${baseUrl}/blog/hello-world`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Hello World");
expect(html).toMatch(/Blog post slug:.*hello-world/);
});
it("returns 404 for unlisted path with getStaticPaths fallback: false", async () => {
const res = await fetch(`${baseUrl}/blog/nonexistent`);
expect(res.status).toBe(404);
});
it("renders article with getStaticPaths fallback: 'blocking' for listed path", async () => {
const res = await fetch(`${baseUrl}/articles/1`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("First Article");
expect(html).toMatch(/Article ID:.*1/);
});
it("SSR renders unlisted path with getStaticPaths fallback: 'blocking'", async () => {
const res = await fetch(`${baseUrl}/articles/99`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toMatch(/Article\s*(<!-- -->)?\s*99/);
expect(html).toMatch(/Article ID:.*99/);
});
it("renders product with getStaticPaths fallback: true for listed path", async () => {
const res = await fetch(`${baseUrl}/products/widget`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Super Widget");
expect(html).toMatch(/Product ID:.*widget/);
expect(html).toMatch(/isFallback:.*false/);
});
it("SSR renders unlisted path with getStaticPaths fallback: true (on-demand)", async () => {
// In dev/SSR mode, fallback: true still renders fully (same as blocking)
// because data is always available via on-demand SSR.
const res = await fetch(`${baseUrl}/products/unknown`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toMatch(/Product\s*(<!-- -->)?\s*unknown/);
expect(html).toMatch(/Product ID:.*unknown/);
// isFallback should be false since we always SSR fully
expect(html).toMatch(/isFallback:.*false/);
});
it("includes isFallback: false in __NEXT_DATA__", async () => {
const res = await fetch(`${baseUrl}/products/widget`);
const html = await res.text();
const match = html.match(/__NEXT_DATA__\s*=\s*(\{.*?\})\s*[;<]/);
expect(match).toBeTruthy();
const nextData = JSON.parse(match![1]);
expect(nextData.isFallback).toBe(false);
});
// ── Cross-origin request protection ─────────────────────────────────
it("blocks page requests with cross-origin Origin header", async () => {
const res = await fetch(`${baseUrl}/`, {
headers: {
"Origin": "https://evil.com",
"Host": new URL(baseUrl).host,
},
});
expect(res.status).toBe(403);
const text = await res.text();
expect(text).toBe("Forbidden");
});
it("blocks API requests with cross-origin Origin header", async () => {
const res = await fetch(`${baseUrl}/api/hello`, {
headers: {
"Origin": "https://external.io",
"Host": new URL(baseUrl).host,
},
});
expect(res.status).toBe(403);
});
it("blocks requests with cross-site Sec-Fetch headers", async () => {
// Node.js fetch overrides Sec-Fetch-* headers (they're forbidden headers
// in the Fetch spec). Use raw HTTP to simulate browser behavior.
const http = await import("node:http");
const url = new URL(baseUrl);
const status = await new Promise<number>((resolve, reject) => {
const req = http.request({
hostname: url.hostname,
port: url.port,
path: "/",
method: "GET",
headers: {
"sec-fetch-site": "cross-site",
"sec-fetch-mode": "no-cors",
},
}, (res) => resolve(res.statusCode ?? 0));
req.on("error", reject);
req.end();
});
expect(status).toBe(403);
});
it("allows page requests from localhost origin", async () => {
const res = await fetch(`${baseUrl}/`, {
headers: {
"Origin": baseUrl,
"Host": new URL(baseUrl).host,
},
});
expect(res.status).toBe(200);
});
it("allows page requests without Origin header", async () => {
const res = await fetch(`${baseUrl}/`);
expect(res.status).toBe(200);
});
});
describe("Virtual server entry generation", () => {
it("generates valid JavaScript for the server entry", async () => {
// Create a minimal server just to access the plugin's virtual module
const testServer = await createServer({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
server: { port: 0 },
logLevel: "silent",
});
try {
// Load the virtual module through Vite's SSR pipeline
const entry = await testServer.ssrLoadModule("virtual:vinext-server-entry");
// Verify it exports the expected functions
expect(typeof entry.renderPage).toBe("function");
expect(typeof entry.handleApiRoute).toBe("function");
} finally {
await testServer.close();
}
});
it("client entry uses Next.js bracket format for dynamic route keys", async () => {
// The client entry generates a pageLoaders map keyed by route pattern.
// These keys MUST match __NEXT_DATA__.page (which uses Next.js bracket
// format like "/posts/[id]"), not the internal Express-style ":id" format.
// A mismatch prevents client-side hydration for dynamic route pages.
const testServer = await createServer({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
server: { port: 0 },
logLevel: "silent",
});
try {
const resolved = await testServer.pluginContainer.resolveId("virtual:vinext-client-entry");
expect(resolved).toBeTruthy();
const loaded = await testServer.pluginContainer.load(resolved!.id);
expect(loaded).toBeTruthy();
const code = typeof loaded === "string" ? loaded : (loaded as any)?.code ?? "";
// Dynamic routes should use [param] format, not :param
// The fixture has pages/posts/[id].tsx
expect(code).toContain('"/posts/[id]"');
// Catch-all routes: pages/docs/[...slug].tsx
expect(code).toContain('"/docs/[...slug]"');
// Should NOT contain Express-style :param patterns for any route
expect(code).not.toMatch(/["']\/(posts|blog|articles|docs|products)\/:[\w]+["']/);
expect(code).not.toContain(":slug+");
expect(code).not.toContain(":slug*");
} finally {
await testServer.close();
}
});
});
describe("Plugin config", () => {
it("adds resolve.dedupe for React packages to prevent dual instance errors", async () => {
const plugins = vinext() as any[];
const configPlugin = plugins.find((p) => p.name === "vinext:config");
expect(configPlugin).toBeDefined();
// Call the config hook with a minimal config
const result = await configPlugin.config({ root: FIXTURE_DIR, plugins: [] });
expect(result.resolve).toBeDefined();
expect(result.resolve.dedupe).toBeDefined();
expect(result.resolve.dedupe).toContain("react");
expect(result.resolve.dedupe).toContain("react-dom");
expect(result.resolve.dedupe).toContain("react/jsx-runtime");
expect(result.resolve.dedupe).toContain("react/jsx-dev-runtime");
});
it("suppresses MODULE_LEVEL_DIRECTIVE warnings from Rollup", async () => {
const plugins = vinext() as any[];
const configPlugin = plugins.find((p) => p.name === "vinext:config");
expect(configPlugin).toBeDefined();
const result = await configPlugin.config({ root: FIXTURE_DIR, plugins: [] });
expect(result.build).toBeDefined();
expect(result.build.rollupOptions).toBeDefined();
expect(result.build.rollupOptions.onwarn).toBeDefined();
const defaultHandler = vi.fn();
// "use client" MODULE_LEVEL_DIRECTIVE warnings should be silenced
result.build.rollupOptions.onwarn(
{ code: "MODULE_LEVEL_DIRECTIVE", message: '"use client" was ignored' },
defaultHandler,
);
expect(defaultHandler).not.toHaveBeenCalled();
// "use server" MODULE_LEVEL_DIRECTIVE warnings should be silenced
result.build.rollupOptions.onwarn(
{ code: "MODULE_LEVEL_DIRECTIVE", message: '"use server" was ignored' },
defaultHandler,
);
expect(defaultHandler).not.toHaveBeenCalled();
// MODULE_LEVEL_DIRECTIVE warnings for other directives should pass through
const otherDirectiveWarning = {
code: "MODULE_LEVEL_DIRECTIVE",
message: '"use strict" was ignored',
};
result.build.rollupOptions.onwarn(otherDirectiveWarning, defaultHandler);
expect(defaultHandler).toHaveBeenCalledWith(otherDirectiveWarning);
// Other warning codes should pass through to the default handler
defaultHandler.mockClear();
const otherWarning = { code: "CIRCULAR_DEPENDENCY", message: "circular" };
result.build.rollupOptions.onwarn(otherWarning, defaultHandler);
expect(defaultHandler).toHaveBeenCalledWith(otherWarning);
});
it("preserves user-supplied build.rollupOptions.onwarn", async () => {
const plugins = vinext() as any[];
const configPlugin = plugins.find((p) => p.name === "vinext:config");
expect(configPlugin).toBeDefined();
const userOnwarn = vi.fn();
const result = await configPlugin.config({
root: FIXTURE_DIR,
plugins: [],
build: { rollupOptions: { onwarn: userOnwarn } },
});
const defaultHandler = vi.fn();
// "use client" should still be suppressed (user handler NOT called)
result.build.rollupOptions.onwarn(
{ code: "MODULE_LEVEL_DIRECTIVE", message: '"use client" was ignored' },
defaultHandler,
);
expect(userOnwarn).not.toHaveBeenCalled();
expect(defaultHandler).not.toHaveBeenCalled();
// Other warnings should be forwarded to the user's handler
const otherWarning = { code: "CIRCULAR_DEPENDENCY", message: "circular" };
result.build.rollupOptions.onwarn(otherWarning, defaultHandler);
expect(userOnwarn).toHaveBeenCalledWith(otherWarning, defaultHandler);
expect(defaultHandler).not.toHaveBeenCalled();
});
});
describe("Production build", () => {
const outDir = path.resolve(FIXTURE_DIR, "dist");
afterAll(() => {
// Clean up build output
fs.rmSync(outDir, { recursive: true, force: true });
});
it("produces SSR server entry via vite build --ssr", async () => {
// Build the SSR bundle using the virtual server entry
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "server"),
ssr: "virtual:vinext-server-entry",
rollupOptions: {
output: {
entryFileNames: "entry.js",
},
},
},
});
// Verify the server entry was produced
const entryPath = path.join(outDir, "server", "entry.js");
expect(fs.existsSync(entryPath)).toBe(true);
const entryContent = fs.readFileSync(entryPath, "utf-8");
// Should export renderPage and handleApiRoute
expect(entryContent).toContain("renderPage");
expect(entryContent).toContain("handleApiRoute");
// Should contain route patterns from our fixture pages
expect(entryContent).toContain("/about");
expect(entryContent).toContain("/ssr");
});
it("produces client bundle with page chunks and SSR manifest", async () => {
// Build the client bundle
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "client"),
manifest: true,
ssrManifest: true,
rollupOptions: {
input: "virtual:vinext-client-entry",
},
},
});
// Verify client output exists
const assetsDir = path.join(outDir, "client", "assets");
expect(fs.existsSync(assetsDir)).toBe(true);
// Verify SSR manifest was produced
const manifestPath = path.join(outDir, "client", ".vite", "ssr-manifest.json");
expect(fs.existsSync(manifestPath)).toBe(true);
const manifest = JSON.parse(fs.readFileSync(manifestPath, "utf-8"));
// Manifest should have entries (module IDs -> asset URLs)
expect(Object.keys(manifest).length).toBeGreaterThan(0);
// Verify build manifest was also produced (needed for lazy chunk computation)
const buildManifestPath = path.join(outDir, "client", ".vite", "manifest.json");
expect(fs.existsSync(buildManifestPath)).toBe(true);
// There should be JS files in the assets directory
const assets = fs.readdirSync(assetsDir);
const jsFiles = assets.filter((f: string) => f.endsWith(".js"));
expect(jsFiles.length).toBeGreaterThan(0);
// Client bundle should be code-split: framework (React/ReactDOM) in its
// own chunk, vinext runtime in another, and the entry bootstrap should be
// small (not a monolithic bundle containing all vendor code).
const frameworkChunk = jsFiles.find((f: string) => f.startsWith("framework-"));
const vinextChunk = jsFiles.find((f: string) => f.startsWith("vinext-"));
const entryChunk = jsFiles.find((f: string) => f.includes("vinext-client-entry"));
expect(frameworkChunk).toBeDefined();
expect(vinextChunk).toBeDefined();
expect(entryChunk).toBeDefined();
// The entry chunk should be small (just the hydration bootstrap, not the
// entire React framework). Before code-splitting this was ~200KB+.
if (entryChunk) {
const entrySize = fs.statSync(path.join(assetsDir, entryChunk)).size;
expect(entrySize).toBeLessThan(20 * 1024); // < 20 KB
}
});
it("serves pages from production build end-to-end", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const manifestPath = path.join(outDir, "client", ".vite", "ssr-manifest.json");
// Both should exist from prior tests
if (!fs.existsSync(serverEntryPath) || !fs.existsSync(manifestPath)) {
// Build if needed (tests may run in isolation)
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "server"),
ssr: "virtual:vinext-server-entry",
rollupOptions: { output: { entryFileNames: "entry.js" } },
},
});
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "client"),
manifest: true,
ssrManifest: true,
rollupOptions: { input: "virtual:vinext-client-entry" },
},
});
}
// Import the server entry
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
const manifest = JSON.parse(fs.readFileSync(manifestPath, "utf-8"));
// Create a minimal HTTP server using the built entry.
// The server entry uses Web-standard Request/Response, so we bridge
// from Node.js HTTP objects.
const { createServer: createHttpServer } = await import("node:http");
const httpServer = createHttpServer(async (req, res) => {
const url = req.url ?? "/";
const pathname = url.split("?")[0];
// Convert Node.js req to Web Request
const headers = new Headers();
for (const [k, v] of Object.entries(req.headers)) {
if (v) headers.set(k, Array.isArray(v) ? v.join(", ") : v);
}
const host = req.headers.host ?? "localhost";
const webRequest = new Request(`http://${host}${url}`, {
method: req.method,
headers,
});
let response: Response;
if (pathname.startsWith("/api/") || pathname === "/api") {
response = await serverEntry.handleApiRoute(webRequest, url);
} else {
response = await serverEntry.renderPage(webRequest, url, manifest);
}
// Pipe Web Response back to Node.js res
const body = await response.text();
const resHeaders: Record<string, string> = {};
response.headers.forEach((v: string, k: string) => { resHeaders[k] = v; });
res.writeHead(response.status, resHeaders);
res.end(body);
});
// Start on a random port
await new Promise<void>((resolve) => httpServer.listen(0, resolve));
const addr = httpServer.address() as { port: number };
const prodUrl = `http://localhost:${addr.port}`;
try {
// Test: index page renders
const indexRes = await fetch(`${prodUrl}/`);
expect(indexRes.status).toBe(200);
const indexHtml = await indexRes.text();
expect(indexHtml).toContain("Hello, vinext!");
expect(indexHtml).toContain("__NEXT_DATA__");
// Test: about page renders
const aboutRes = await fetch(`${prodUrl}/about`);
expect(aboutRes.status).toBe(200);
const aboutHtml = await aboutRes.text();
expect(aboutHtml).toContain("About");
// Test: SSR page with getServerSideProps
const ssrRes = await fetch(`${prodUrl}/ssr`);
expect(ssrRes.status).toBe(200);
const ssrHtml = await ssrRes.text();
expect(ssrHtml).toContain("Server-Side Rendered");
// Test: API route
const apiRes = await fetch(`${prodUrl}/api/hello`);
expect(apiRes.status).toBe(200);
const apiData = await apiRes.json();
expect(apiData).toEqual({ message: "Hello from API!" });
// Test: 404 for unknown route
const notFoundRes = await fetch(`${prodUrl}/nonexistent`);
expect(notFoundRes.status).toBe(404);
} finally {
httpServer.close();
}
});
it("server entry exports runMiddleware function", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
expect(typeof serverEntry.runMiddleware).toBe("function");
});
it("runMiddleware skips non-matching paths", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
// The middleware matcher is /((?!api|_next|favicon\.ico).*) so /api should not match
const request = new Request("http://localhost/api/hello");
const result = await serverEntry.runMiddleware(request);
expect(result.continue).toBe(true);
expect(result.redirectUrl).toBeUndefined();
});
it("runMiddleware handles redirect (/old-page -> /about)", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
const request = new Request("http://localhost/old-page");
const result = await serverEntry.runMiddleware(request);
expect(result.continue).toBe(false);
expect(result.redirectUrl).toContain("/about");
expect(result.redirectStatus).toBe(307);
});
it("runMiddleware handles rewrite (/rewritten -> /ssr)", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
const request = new Request("http://localhost/rewritten");
const result = await serverEntry.runMiddleware(request);
expect(result.continue).toBe(true);
expect(result.rewriteUrl).toContain("/ssr");
});
it("runMiddleware handles block (/blocked -> 403)", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
const request = new Request("http://localhost/blocked");
const result = await serverEntry.runMiddleware(request);
expect(result.continue).toBe(false);
expect(result.response).toBeInstanceOf(Response);
expect(result.response.status).toBe(403);
});
it("runMiddleware sets x-custom-middleware header on matched paths", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
// /about matches the middleware but doesn't redirect/rewrite/block
const request = new Request("http://localhost/about");
const result = await serverEntry.runMiddleware(request);
expect(result.continue).toBe(true);
expect(result.responseHeaders).toBeDefined();
expect(result.responseHeaders.get("x-custom-middleware")).toBe("active");
});
it("runMiddleware returns 500 when middleware throws", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
const request = new Request("http://localhost/middleware-throw");
const result = await serverEntry.runMiddleware(request);
expect(result.continue).toBe(false);
expect(result.response).toBeInstanceOf(Response);
expect(result.response.status).toBe(500);
});
});
describe("Production server middleware (Pages Router)", () => {
const outDir = path.resolve(FIXTURE_DIR, "dist");
let prodServer: import("node:http").Server;
let prodUrl: string;
beforeAll(async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const manifestPath = path.join(outDir, "client", ".vite", "ssr-manifest.json");
// Build if needed (tests may run in isolation)
if (!fs.existsSync(serverEntryPath) || !fs.existsSync(manifestPath)) {
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "server"),
ssr: "virtual:vinext-server-entry",
rollupOptions: { output: { entryFileNames: "entry.js" } },
},
});
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "client"),
manifest: true,
ssrManifest: true,
rollupOptions: { input: "virtual:vinext-client-entry" },
},
});
}
const { startProdServer } = await import(
"../packages/vinext/src/server/prod-server.js"
);
prodServer = await startProdServer({
port: 0,
host: "127.0.0.1",
outDir,
});
const addr = prodServer.address() as { port: number };
prodUrl = `http://127.0.0.1:${addr.port}`;
});
afterAll(async () => {
if (prodServer) {
await new Promise<void>((resolve) => prodServer.close(() => resolve()));
}
});
it("redirects /old-page to /about via middleware", async () => {
const res = await fetch(`${prodUrl}/old-page`, { redirect: "manual" });
expect(res.status).toBe(307);
expect(res.headers.get("location")).toContain("/about");
});
it("rewrites /rewritten to render /ssr content", async () => {
const res = await fetch(`${prodUrl}/rewritten`);
expect(res.status).toBe(200);
const html = await res.text();
// /rewritten should serve the content of /ssr page
expect(html).toContain("Server-Side Rendered");
});
it("blocks /blocked with 403 via middleware", async () => {
const res = await fetch(`${prodUrl}/blocked`);
expect(res.status).toBe(403);
const text = await res.text();
expect(text).toContain("Access Denied");
});
it("returns 500 when middleware throws", async () => {
const res = await fetch(`${prodUrl}/middleware-throw`);
expect(res.status).toBe(500);
});
it("sets x-custom-middleware header on matched requests", async () => {
const res = await fetch(`${prodUrl}/about`);
expect(res.status).toBe(200);
expect(res.headers.get("x-custom-middleware")).toBe("active");
});
it("does not run middleware on /api routes", async () => {
const res = await fetch(`${prodUrl}/api/hello`);
expect(res.status).toBe(200);
// Middleware matcher excludes /api, so no x-custom-middleware header
expect(res.headers.get("x-custom-middleware")).toBeNull();
});
it("preserves binary API response bytes", async () => {
const res = await fetch(`${prodUrl}/api/binary`);
expect(res.status).toBe(200);
expect(res.headers.get("content-type")).toContain("application/octet-stream");
const body = Buffer.from(await res.arrayBuffer());
// Must match exactly: invalid UTF-8-leading bytes + null + ASCII tail.
// This catches any accidental text() decode/re-encode in prod-server.
expect(body.equals(Buffer.from([0xff, 0xfe, 0xfd, 0x00, 0x61, 0x62, 0x63]))).toBe(true);
});
it("serves normal pages without middleware interference", async () => {
const res = await fetch(`${prodUrl}/`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Hello, vinext!");
});
it("returns 400 for malformed percent-encoded path (not crash)", async () => {
const res = await fetch(`${prodUrl}/%E0%A4%A`);
expect(res.status).toBe(400);
const body = await res.text();
expect(body).toContain("Bad Request");
});
it("returns 400 for bare percent sign in path (not crash)", async () => {
const res = await fetch(`${prodUrl}/%`);
expect(res.status).toBe(400);
const body = await res.text();
expect(body).toContain("Bad Request");
});
});
describe("Production server next.config.js features (Pages Router)", () => {
const outDir = path.resolve(FIXTURE_DIR, "dist");
let prodServer: import("node:http").Server;
let prodUrl: string;
beforeAll(async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const manifestPath = path.join(outDir, "client", ".vite", "ssr-manifest.json");
// Build if needed (tests may run in isolation)
if (!fs.existsSync(serverEntryPath) || !fs.existsSync(manifestPath)) {
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "server"),
ssr: "virtual:vinext-server-entry",
rollupOptions: { output: { entryFileNames: "entry.js" } },
},
});
await build({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
logLevel: "silent",
build: {
outDir: path.join(outDir, "client"),
manifest: true,
ssrManifest: true,
rollupOptions: { input: "virtual:vinext-client-entry" },
},
});
}
const { startProdServer } = await import(
"../packages/vinext/src/server/prod-server.js"
);
prodServer = await startProdServer({
port: 0,
host: "127.0.0.1",
outDir,
});
const addr = prodServer.address() as { port: number };
prodUrl = `http://127.0.0.1:${addr.port}`;
});
afterAll(async () => {
if (prodServer) {
await new Promise<void>((resolve) => prodServer.close(() => resolve()));
}
});
it("server entry exports vinextConfig with correct shape", async () => {
const serverEntryPath = path.join(outDir, "server", "entry.js");
const serverEntry = await import(pathToFileURL(serverEntryPath).href);
expect(serverEntry.vinextConfig).toBeDefined();
expect(serverEntry.vinextConfig.redirects).toBeInstanceOf(Array);
expect(serverEntry.vinextConfig.rewrites).toBeDefined();
expect(serverEntry.vinextConfig.headers).toBeInstanceOf(Array);
expect(typeof serverEntry.vinextConfig.basePath).toBe("string");
expect(typeof serverEntry.vinextConfig.trailingSlash).toBe("boolean");
});
it("applies redirects from next.config.js (/old-about -> /about)", async () => {
const res = await fetch(`${prodUrl}/old-about`, { redirect: "manual" });
expect(res.status).toBe(308); // permanent redirect
expect(res.headers.get("location")).toContain("/about");
});
it("applies beforeFiles rewrites from next.config.js (/before-rewrite -> /about)", async () => {
const res = await fetch(`${prodUrl}/before-rewrite`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
});
it("applies afterFiles rewrites from next.config.js (/after-rewrite -> /about)", async () => {
const res = await fetch(`${prodUrl}/after-rewrite`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
});
it("applies custom headers from next.config.js on /api routes", async () => {
const res = await fetch(`${prodUrl}/api/hello`);
expect(res.status).toBe(200);
expect(res.headers.get("x-custom-header")).toBe("vinext");
});
it("serves normal pages unaffected by config rules", async () => {
const res = await fetch(`${prodUrl}/`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("Hello, vinext!");
});
// ── Percent-encoded paths should be decoded before config matching ──
// Config matchers must receive decoded paths so that encoded variants
// like /%6Fld-%61bout still match the /old-about redirect rule.
it("percent-encoded redirect path is decoded before config matching (prod)", async () => {
// /old-about → /about (permanent redirect). /%6Fld-%61bout decodes to /old-about.
const res = await fetch(`${prodUrl}/%6Fld-%61bout`, { redirect: "manual" });
expect(res.status).toBe(308);
expect(res.headers.get("location")).toContain("/about");
});
it("percent-encoded header path is decoded before config matching (prod)", async () => {
// /api/(.*) should receive X-Custom-Header: vinext.
// /%61pi/hello decodes to /api/hello.
const res = await fetch(`${prodUrl}/%61pi/hello`);
expect(res.headers.get("x-custom-header")).toBe("vinext");
});
it("percent-encoded rewrite path is decoded before config matching (prod)", async () => {
// /before-rewrite → /about (beforeFiles rewrite).
// /%62efore-rewrite decodes to /before-rewrite.
const res = await fetch(`${prodUrl}/%62efore-rewrite`);
expect(res.status).toBe(200);
const html = await res.text();
expect(html).toContain("About");
});
});
describe("Static export (Pages Router)", () => {
let server: ViteDevServer;
const exportDir = path.resolve(FIXTURE_DIR, "out");
beforeAll(async () => {
server = await createServer({
root: FIXTURE_DIR,
configFile: false,
plugins: [vinext()],
server: { port: 0 },
logLevel: "silent",
});
// Don't need to listen — just need the SSR module loader
});
afterAll(async () => {
await server.close();
fs.rmSync(exportDir, { recursive: true, force: true });
});
it("exports static pages to HTML files", async () => {
const { staticExportPages } = await import(
"../packages/vinext/src/build/static-export.js"
);
const { pagesRouter, apiRouter } = await import(
"../packages/vinext/src/routing/pages-router.js"
);
const { resolveNextConfig } = await import(
"../packages/vinext/src/config/next-config.js"
);
const pagesDir = path.resolve(FIXTURE_DIR, "pages");
const routes = await pagesRouter(pagesDir);
const apiRoutes = await apiRouter(pagesDir);
const config = await resolveNextConfig({ output: "export" });
const result = await staticExportPages({
server,
routes,
apiRoutes,
pagesDir,
outDir: exportDir,
config,
});
// Should have generated HTML files
expect(result.pageCount).toBeGreaterThan(0);
// Index page
expect(result.files).toContain("index.html");
const indexHtml = fs.readFileSync(
path.join(exportDir, "index.html"),
"utf-8",
);
expect(indexHtml).toContain("<!DOCTYPE html>");
expect(indexHtml).toContain("Hello, vinext!");
// About page
expect(result.files).toContain("about.html");
const aboutHtml = fs.readFileSync(
path.join(exportDir, "about.html"),
"utf-8",
);
expect(aboutHtml).toContain("About");
});
it("pre-renders dynamic routes from getStaticPaths", async () => {
// blog/[slug] has getStaticPaths returning hello-world and getting-started
expect(
fs.existsSync(path.join(exportDir, "blog", "hello-world.html")),
).toBe(true);
expect(
fs.existsSync(path.join(exportDir, "blog", "getting-started.html")),
).toBe(true);
const blogHtml = fs.readFileSync(
path.join(exportDir, "blog", "hello-world.html"),
"utf-8",
);
expect(blogHtml).toContain("Hello World");
expect(blogHtml).toContain("hello-world");
});
it("generates 404.html", async () => {
expect(fs.existsSync(path.join(exportDir, "404.html"))).toBe(true);
const html404 = fs.readFileSync(
path.join(exportDir, "404.html"),
"utf-8",
);
expect(html404).toContain("404");
});
it("escapes meta refresh URL to prevent HTML injection", async () => {
expect(fs.existsSync(path.join(exportDir, "redirect-xss.html"))).toBe(true);
const html = fs.readFileSync(
path.join(exportDir, "redirect-xss.html"),
"utf-8",
);
expect(html).toContain('content="0;url=foo" /><script>alert(1)</script><meta x=""');
expect(html).not.toContain('<script>alert(1)</script>');
});
it("reports errors for pages using getServerSideProps", async () => {
// The result from the first test should have errors for SSR-only pages
const { staticExportPages } = await import(
"../packages/vinext/src/build/static-export.js"
);
const { pagesRouter, apiRouter } = await import(
"../packages/vinext/src/routing/pages-router.js"
);
const { resolveNextConfig } = await import(
"../packages/vinext/src/config/next-config.js"
);
const pagesDir = path.resolve(FIXTURE_DIR, "pages");
const routes = await pagesRouter(pagesDir);
const apiRoutes = await apiRouter(pagesDir);
const config = await resolveNextConfig({ output: "export" });
const tempDir = path.resolve(FIXTURE_DIR, "out-temp");
try {
const result = await staticExportPages({
server,
routes,
apiRoutes,
pagesDir,
outDir: tempDir,
config,
});
// Should report errors for getServerSideProps pages
const ssrErrors = result.errors.filter((e) =>
e.error.includes("getServerSideProps"),
);
expect(ssrErrors.length).toBeGreaterThan(0);
// Should warn about API routes
expect(result.warnings.some((w) => w.includes("API route"))).toBe(true);
} finally {
fs.rmSync(tempDir, { recursive: true, force: true });
}
});
it("includes __NEXT_DATA__ in exported HTML", async () => {
const indexHtml = fs.readFileSync(
path.join(exportDir, "index.html"),
"utf-8",
);
expect(indexHtml).toContain("__NEXT_DATA__");
});
it("respects trailingSlash config", async () => {
const { staticExportPages } = await import(
"../packages/vinext/src/build/static-export.js"
);
const { pagesRouter, apiRouter } = await import(
"../packages/vinext/src/routing/pages-router.js"
);
const { resolveNextConfig } = await import(
"../packages/vinext/src/config/next-config.js"
);
const pagesDir = path.resolve(FIXTURE_DIR, "pages");
const routes = await pagesRouter(pagesDir);
const apiRoutes = await apiRouter(pagesDir);
const config = await resolveNextConfig({
output: "export",
trailingSlash: true,
});
const trailingDir = path.resolve(FIXTURE_DIR, "out-trailing");
try {
const result = await staticExportPages({
server,
routes,
apiRoutes,
pagesDir,
outDir: trailingDir,
config,
});
// With trailingSlash, about → about/index.html
expect(result.files).toContain("about/index.html");
expect(
fs.existsSync(path.join(trailingDir, "about", "index.html")),
).toBe(true);
} finally {
fs.rmSync(trailingDir, { recursive: true, force: true });
}
});
});
describe("router __NEXT_DATA__ correctness (Pages Router)", () => {
let routerServer: ViteDevServer;
let routerBaseUrl: string;
beforeAll(async () => {
({ server: routerServer, baseUrl: routerBaseUrl } = await startFixtureServer(FIXTURE_DIR));
});
afterAll(async () => {
await routerServer?.close();
});
it("dynamic route params are included in __NEXT_DATA__.query", async () => {
const res = await fetch(`${routerBaseUrl}/blog/hello-world`);
expect(res.status).toBe(200);
const html = await res.text();
const match = html.match(/<script>window\.__NEXT_DATA__\s*=\s*({.*?})<\/script>/);
expect(match).toBeTruthy();
const nextData = JSON.parse(match![1]);
expect(nextData.query).toEqual({ slug: "hello-world" });
expect(nextData.page).toBe("/blog/[slug]");
});
it("__NEXT_DATA__.page is the route pattern, not the actual path", async () => {
const res = await fetch(`${routerBaseUrl}/posts/hello-world`);
expect(res.status).toBe(200);
const html = await res.text();
const match = html.match(/<script>window\.__NEXT_DATA__\s*=\s*({.*?})<\/script>/);
const nextData = JSON.parse(match![1]);
expect(nextData.page).toBe("/posts/[id]");
expect(nextData.query.id).toBe("hello-world");
});
it("catch-all route pattern in __NEXT_DATA__.page", async () => {
const res = await fetch(`${routerBaseUrl}/docs/a/b/c`);
expect(res.status).toBe(200);
const html = await res.text();
const match = html.match(/<script>window\.__NEXT_DATA__\s*=\s*({.*?})<\/script>/);
const nextData = JSON.parse(match![1]);
expect(nextData.page).toBe("/docs/[...slug]");
});
it("__NEXT_DATA__ includes isFallback: false", async () => {
const res = await fetch(`${routerBaseUrl}/blog/hello-world`);
const html = await res.text();
const match = html.match(/<script>window\.__NEXT_DATA__\s*=\s*({.*?})<\/script>/);
const nextData = JSON.parse(match![1]);
expect(nextData.isFallback).toBe(false);
});
it("static page __NEXT_DATA__.page is the pathname", async () => {
const res = await fetch(`${routerBaseUrl}/about`);
const html = await res.text();
const match = html.match(/<script>window\.__NEXT_DATA__\s*=\s*({.*?})<\/script>/);
const nextData = JSON.parse(match![1]);
expect(nextData.page).toBe("/about");
});
it("shallow-test page returns correct __NEXT_DATA__ with GSSP props", async () => {
const res = await fetch(`${routerBaseUrl}/shallow-test`);
expect(res.status).toBe(200);
const html = await res.text();
const match = html.match(/<script>window\.__NEXT_DATA__\s*=\s*({.*?})<\/script>/);
const nextData = JSON.parse(match![1]);
expect(nextData.page).toBe("/shallow-test");
expect(nextData.props.pageProps.gsspCallId).toBeGreaterThan(0);
});
});