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1661import { describe, it, expect, beforeEach, afterEach } from "vitest";
import fs from "node:fs";
import path from "node:path";
import os from "node:os";
import {
detectProject,
generateWranglerConfig,
generateAppRouterWorkerEntry,
generatePagesRouterWorkerEntry,
generateAppRouterViteConfig,
generatePagesRouterViteConfig,
getMissingDeps,
getFilesToGenerate,
ensureESModule,
renameCJSConfigs,
buildWranglerDeployArgs,
parseDeployArgs,
isPackageResolvable,
} from "../packages/vinext/src/deploy.js";
import { computeLazyChunks } from "../packages/vinext/src/index.js";
// โโโ Test Helpers โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
let tmpDir: string;
function createTmpDir(): string {
const dir = fs.mkdtempSync(path.join(os.tmpdir(), "vinext-deploy-test-"));
return dir;
}
function writeFile(dir: string, relativePath: string, content: string): void {
const fullPath = path.join(dir, relativePath);
fs.mkdirSync(path.dirname(fullPath), { recursive: true });
fs.writeFileSync(fullPath, content, "utf-8");
}
function mkdir(dir: string, relativePath: string): void {
fs.mkdirSync(path.join(dir, relativePath), { recursive: true });
}
beforeEach(() => {
tmpDir = createTmpDir();
});
afterEach(() => {
fs.rmSync(tmpDir, { recursive: true, force: true });
});
// โโโ Wrangler deploy args โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("buildWranglerDeployArgs", () => {
it("uses plain deploy for production by default", () => {
expect(buildWranglerDeployArgs({})).toEqual({ args: ["deploy"], env: undefined });
});
it("maps --preview to wrangler --env preview", () => {
expect(buildWranglerDeployArgs({ preview: true })).toEqual({
args: ["deploy", "--env", "preview"],
env: "preview",
});
});
it("passes through explicit env names", () => {
expect(buildWranglerDeployArgs({ env: "staging" })).toEqual({
args: ["deploy", "--env", "staging"],
env: "staging",
});
});
it("prefers explicit env over --preview shorthand", () => {
expect(buildWranglerDeployArgs({ preview: true, env: "qa" })).toEqual({
args: ["deploy", "--env", "qa"],
env: "qa",
});
});
it("treats empty string env as production", () => {
expect(buildWranglerDeployArgs({ env: "" })).toEqual({ args: ["deploy"], env: undefined });
});
});
// โโโ Deploy CLI arg parsing โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("parseDeployArgs", () => {
it("defaults to production deploy with no flags", () => {
const parsed = parseDeployArgs([]);
expect(parsed.preview).toBe(false);
expect(parsed.env).toBeUndefined();
expect(parsed.name).toBeUndefined();
expect(parsed.skipBuild).toBe(false);
expect(parsed.dryRun).toBe(false);
});
it("parses --env with space-separated value", () => {
expect(parseDeployArgs(["--env", "staging"]).env).toBe("staging");
});
it("parses --env=value form", () => {
expect(parseDeployArgs(["--env=staging"]).env).toBe("staging");
});
it("parses --name with space-separated value", () => {
expect(parseDeployArgs(["--name", "my-app"]).name).toBe("my-app");
});
it("parses --name=value form", () => {
expect(parseDeployArgs(["--name=my-app"]).name).toBe("my-app");
});
it("parses boolean flags", () => {
const parsed = parseDeployArgs(["--preview", "--skip-build", "--dry-run"]);
expect(parsed.preview).toBe(true);
expect(parsed.skipBuild).toBe(true);
expect(parsed.dryRun).toBe(true);
});
it("parses numeric TPR flags from string values", () => {
const parsed = parseDeployArgs([
"--experimental-tpr",
"--tpr-coverage", "95",
"--tpr-limit", "500",
"--tpr-window", "48",
]);
expect(parsed.experimentalTPR).toBe(true);
expect(parsed.tprCoverage).toBe(95);
expect(parsed.tprLimit).toBe(500);
expect(parsed.tprWindow).toBe(48);
});
it("trims whitespace from --env value", () => {
expect(parseDeployArgs(["--env", " staging "]).env).toBe("staging");
});
it("treats whitespace-only --env as undefined", () => {
expect(parseDeployArgs(["--env", " "]).env).toBeUndefined();
});
it("throws on unknown flags (strict mode)", () => {
expect(() => parseDeployArgs(["--bogus"])).toThrow();
});
});
// โโโ detectProject โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("detectProject", () => {
it("detects App Router when app/ exists", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/page.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.isPagesRouter).toBe(false);
});
it("detects Pages Router when only pages/ exists", () => {
mkdir(tmpDir, "pages");
writeFile(tmpDir, "pages/index.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(false);
expect(info.isPagesRouter).toBe(true);
});
it("prefers App Router when both app/ and pages/ exist", () => {
mkdir(tmpDir, "app");
mkdir(tmpDir, "pages");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.isPagesRouter).toBe(false);
});
it("detects neither when no app/ or pages/", () => {
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(false);
expect(info.isPagesRouter).toBe(false);
});
it("detects vite.config.ts", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "vite.config.ts", "export default {}");
const info = detectProject(tmpDir);
expect(info.hasViteConfig).toBe(true);
});
it("detects vite.config.mjs", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "vite.config.mjs", "export default {}");
const info = detectProject(tmpDir);
expect(info.hasViteConfig).toBe(true);
});
it("detects no vite config", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
expect(info.hasViteConfig).toBe(false);
});
it("detects wrangler.jsonc", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "wrangler.jsonc", "{}");
const info = detectProject(tmpDir);
expect(info.hasWranglerConfig).toBe(true);
});
it("detects wrangler.toml", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "wrangler.toml", "[vars]");
const info = detectProject(tmpDir);
expect(info.hasWranglerConfig).toBe(true);
});
it("detects worker/index.ts", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "worker/index.ts", "export default {}");
const info = detectProject(tmpDir);
expect(info.hasWorkerEntry).toBe(true);
});
it("detects worker/index.js", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "worker/index.js", "export default {}");
const info = detectProject(tmpDir);
expect(info.hasWorkerEntry).toBe(true);
});
it("derives project name from package.json", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ name: "my-cool-app" }));
const info = detectProject(tmpDir);
expect(info.projectName).toBe("my-cool-app");
});
it("strips npm scope from project name", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ name: "@org/my-app" }));
const info = detectProject(tmpDir);
expect(info.projectName).toBe("my-app");
});
it("sanitizes project name for Workers", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ name: "My App_v2!" }));
const info = detectProject(tmpDir);
// Workers names: lowercase alphanumeric + hyphens
expect(info.projectName).toMatch(/^[a-z0-9-]+$/);
expect(info.projectName).not.toMatch(/^-|-$/);
});
it("falls back to directory name when no package.json", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
expect(info.projectName).toBe(path.basename(tmpDir));
});
it("detects ISR usage in App Router", () => {
mkdir(tmpDir, "app");
writeFile(
tmpDir,
"app/posts/page.tsx",
`export const revalidate = 60;\nexport default function Posts() { return <div>posts</div> }`,
);
const info = detectProject(tmpDir);
expect(info.hasISR).toBe(true);
});
it("does not detect ISR when no revalidate export", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/page.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
expect(info.hasISR).toBe(false);
});
it("does not detect ISR for Pages Router", () => {
mkdir(tmpDir, "pages");
writeFile(tmpDir, "pages/index.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
expect(info.hasISR).toBe(false);
});
});
// โโโ generateWranglerConfig โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("generateWranglerConfig", () => {
it("generates valid JSON with required fields", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
const config = generateWranglerConfig(info);
const parsed = JSON.parse(config);
expect(parsed.name).toBe(info.projectName);
expect(parsed.compatibility_flags).toContain("nodejs_compat");
expect(parsed.main).toBe("./worker/index.ts");
expect(parsed.assets).toEqual({ not_found_handling: "none", binding: "ASSETS" });
expect(parsed.$schema).toBe("node_modules/wrangler/config-schema.json");
});
it("sets compatibility_date to today", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
const config = generateWranglerConfig(info);
const parsed = JSON.parse(config);
const today = new Date().toISOString().split("T")[0];
expect(parsed.compatibility_date).toBe(today);
});
it("includes KV namespace when ISR detected", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/page.tsx", "export const revalidate = 30;\nexport default function() { return <div/> }");
const info = detectProject(tmpDir);
const config = generateWranglerConfig(info);
const parsed = JSON.parse(config);
expect(parsed.kv_namespaces).toBeDefined();
expect(parsed.kv_namespaces[0].binding).toBe("VINEXT_CACHE");
});
it("omits KV namespace when no ISR", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/page.tsx", "export default function() { return <div/> }");
const info = detectProject(tmpDir);
const config = generateWranglerConfig(info);
const parsed = JSON.parse(config);
expect(parsed.kv_namespaces).toBeUndefined();
});
it("includes Cloudflare Images binding for image optimization", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
const config = generateWranglerConfig(info);
const parsed = JSON.parse(config);
expect(parsed.images).toBeDefined();
expect(parsed.images.binding).toBe("IMAGES");
});
});
// โโโ Worker Entry Generation โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("generateAppRouterWorkerEntry", () => {
it("generates valid TypeScript", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain("export default");
expect(content).toContain("async fetch(request: Request, env: Env)");
expect(content).toContain("Promise<Response>");
});
it("imports handler from vinext/server/app-router-entry", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain('import handler from "vinext/server/app-router-entry"');
});
it("delegates to handler.fetch", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain("handler.fetch(request)");
});
it("includes auto-generated comment", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain("auto-generated by vinext deploy");
});
it("includes /_vinext/image handler", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain("/_vinext/image");
expect(content).toContain("handleImageOptimization");
});
it("imports handleImageOptimization from vinext/server/image-optimization", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain('from "vinext/server/image-optimization"');
expect(content).toContain("handleImageOptimization");
});
it("declares Env interface with IMAGES binding", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain("interface Env");
expect(content).toContain("IMAGES");
expect(content).toContain("ASSETS");
});
it("passes image handlers inline to handleImageOptimization", () => {
const content = generateAppRouterWorkerEntry();
expect(content).toContain("fetchAsset:");
expect(content).toContain("transformImage:");
expect(content).toContain("env.ASSETS.fetch");
expect(content).toContain("env.IMAGES");
});
it("documents that parseImageParams handles backslash normalization", () => {
const content = generateAppRouterWorkerEntry();
// The App Router generated entry delegates to handleImageOptimization
// which calls parseImageParams. Verify the comment documents this.
expect(content).toContain("parseImageParams");
});
});
describe("generatePagesRouterWorkerEntry", () => {
it("generates valid TypeScript", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain("export default");
expect(content).toContain("async fetch(request: Request, env: Env)");
expect(content).toContain("Promise<Response>");
});
it("imports from virtual:vinext-server-entry", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain('from "virtual:vinext-server-entry"');
expect(content).toContain("renderPage");
expect(content).toContain("handleApiRoute");
});
it("routes /api/ to handleApiRoute", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain('pathname.startsWith("/api/")');
expect(content).toContain("handleApiRoute");
});
it("includes error handling", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain("catch (error)");
expect(content).toContain("Internal Server Error");
});
it("includes /_vinext/image handler", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain("/_vinext/image");
expect(content).toContain("handleImageOptimization");
});
it("imports handleImageOptimization from vinext/server/image-optimization", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain('from "vinext/server/image-optimization"');
expect(content).toContain("handleImageOptimization");
});
it("declares Env interface with IMAGES binding", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain("interface Env");
expect(content).toContain("IMAGES");
expect(content).toContain("ASSETS");
});
it("includes backslash normalization in protocol-relative guard", () => {
const content = generatePagesRouterWorkerEntry();
// The generated code should normalize backslashes before the // check
expect(content).toContain('replaceAll("\\\\", "/")');
});
it("passes image handlers inline to handleImageOptimization", () => {
const content = generatePagesRouterWorkerEntry();
expect(content).toContain("fetchAsset:");
expect(content).toContain("transformImage:");
expect(content).toContain("env.ASSETS.fetch");
expect(content).toContain("env.IMAGES");
});
});
// โโโ Vite Config Generation โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ๏ฟฝ๏ฟฝโโโ
describe("generateAppRouterViteConfig", () => {
it("includes vinext and cloudflare plugins", () => {
const content = generateAppRouterViteConfig();
expect(content).toContain('import vinext from "vinext"');
expect(content).toContain('from "@cloudflare/vite-plugin"');
expect(content).toContain("vinext()");
expect(content).toContain("cloudflare(");
});
it("configures viteEnvironment with name: rsc and childEnvironments for Workers", () => {
const content = generateAppRouterViteConfig();
expect(content).toContain('name: "rsc"');
expect(content).toContain('childEnvironments: ["ssr"]');
});
});
describe("generatePagesRouterViteConfig", () => {
it("includes vinext and cloudflare plugins only", () => {
const content = generatePagesRouterViteConfig();
expect(content).toContain('import vinext from "vinext"');
expect(content).toContain('from "@cloudflare/vite-plugin"');
expect(content).toContain("vinext()");
expect(content).toContain("cloudflare()");
// Should NOT include RSC plugin
expect(content).not.toContain("plugin-rsc");
});
});
// โโโ getMissingDeps โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("getMissingDeps", () => {
it("reports missing @cloudflare/vite-plugin", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = false;
info.hasWrangler = true;
info.hasRscPlugin = true;
const missing = getMissingDeps(info);
expect(missing).toContainEqual(
expect.objectContaining({ name: "@cloudflare/vite-plugin" }),
);
});
it("reports missing wrangler", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = true;
info.hasWrangler = false;
info.hasRscPlugin = true;
const missing = getMissingDeps(info);
expect(missing).toContainEqual(
expect.objectContaining({ name: "wrangler" }),
);
});
it("reports missing @vitejs/plugin-rsc for App Router", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = true;
info.hasWrangler = true;
info.hasRscPlugin = false;
const missing = getMissingDeps(info);
expect(missing).toContainEqual(
expect.objectContaining({ name: "@vitejs/plugin-rsc" }),
);
});
it("does not require @vitejs/plugin-rsc for Pages Router", () => {
mkdir(tmpDir, "pages");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = true;
info.hasWrangler = true;
info.hasRscPlugin = false;
const missing = getMissingDeps(info);
expect(missing).not.toContainEqual(
expect.objectContaining({ name: "@vitejs/plugin-rsc" }),
);
});
it("reports missing react-server-dom-webpack for App Router", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = true;
info.hasWrangler = true;
info.hasRscPlugin = true;
// Pass a resolver that always returns false to simulate rsdw not being installed.
// (Vitest's createRequire finds rsdw via the monorepo root, so we can't rely
// on filesystem isolation in tmpdir.)
const notResolvable = () => false;
const missing = getMissingDeps(info, notResolvable);
expect(missing).toContainEqual(
expect.objectContaining({ name: "react-server-dom-webpack" }),
);
});
it("does not require react-server-dom-webpack for Pages Router", () => {
mkdir(tmpDir, "pages");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = true;
info.hasWrangler = true;
info.hasRscPlugin = false;
const missing = getMissingDeps(info);
expect(missing).not.toContainEqual(
expect.objectContaining({ name: "react-server-dom-webpack" }),
);
});
it("returns empty array when everything is installed", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = true;
info.hasWrangler = true;
info.hasRscPlugin = true;
// Pass a resolver that always returns true to simulate all packages installed.
const allResolvable = () => true;
const missing = getMissingDeps(info, allResolvable);
expect(missing).toHaveLength(0);
});
});
// โโโ isPackageResolvable โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("isPackageResolvable", () => {
it("returns true when package exists in node_modules", () => {
// Create a proper resolvable package in the tmpdir
const pkgDir = path.join(tmpDir, "node_modules", "fake-pkg");
fs.mkdirSync(pkgDir, { recursive: true });
fs.writeFileSync(
path.join(pkgDir, "package.json"),
JSON.stringify({ name: "fake-pkg", version: "1.0.0", main: "index.js" }),
);
fs.writeFileSync(path.join(pkgDir, "index.js"), "");
fs.writeFileSync(
path.join(tmpDir, "package.json"),
JSON.stringify({ name: "test", version: "1.0.0" }),
);
expect(isPackageResolvable(tmpDir, "fake-pkg")).toBe(true);
});
it("returns false when package does not exist", () => {
fs.writeFileSync(
path.join(tmpDir, "package.json"),
JSON.stringify({ name: "test", version: "1.0.0" }),
);
// no-such-package-xyz123 should never exist in any node_modules
expect(isPackageResolvable(tmpDir, "no-such-package-xyz123")).toBe(false);
});
});
// โโโ getFilesToGenerate โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("getFilesToGenerate", () => {
it("generates all three files when nothing exists (App Router)", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
expect(files).toHaveLength(3);
const descriptions = files.map((f) => f.description);
expect(descriptions).toContain("wrangler.jsonc");
expect(descriptions).toContain("worker/index.ts");
expect(descriptions).toContain("vite.config.ts");
});
it("generates all three files when nothing exists (Pages Router)", () => {
mkdir(tmpDir, "pages");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
expect(files).toHaveLength(3);
});
it("skips wrangler.jsonc when it already exists", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "wrangler.jsonc", "{}");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
const descriptions = files.map((f) => f.description);
expect(descriptions).not.toContain("wrangler.jsonc");
expect(files).toHaveLength(2);
});
it("skips worker/index.ts when it already exists", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "worker/index.ts", "export default {}");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
const descriptions = files.map((f) => f.description);
expect(descriptions).not.toContain("worker/index.ts");
});
it("skips vite.config.ts when it already exists", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "vite.config.ts", "export default {}");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
const descriptions = files.map((f) => f.description);
expect(descriptions).not.toContain("vite.config.ts");
});
it("generates nothing when all files exist", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "wrangler.jsonc", "{}");
writeFile(tmpDir, "worker/index.ts", "export default {}");
writeFile(tmpDir, "vite.config.ts", "export default {}");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
expect(files).toHaveLength(0);
});
it("generates App Router worker entry for App Router project", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
const workerFile = files.find((f) => f.description === "worker/index.ts");
expect(workerFile).toBeDefined();
expect(workerFile!.content).toContain("vinext/server/app-router-entry");
expect(workerFile!.content).not.toContain("virtual:vinext-server-entry");
});
it("generates Pages Router worker entry for Pages Router project", () => {
mkdir(tmpDir, "pages");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
const workerFile = files.find((f) => f.description === "worker/index.ts");
expect(workerFile).toBeDefined();
expect(workerFile!.content).toContain("virtual:vinext-server-entry");
expect(workerFile!.content).not.toContain("viteRsc");
});
it("generates App Router vite config for App Router project", () => {
mkdir(tmpDir, "app");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
const viteFile = files.find((f) => f.description === "vite.config.ts");
expect(viteFile).toBeDefined();
expect(viteFile!.content).toContain("vinext()");
expect(viteFile!.content).toContain("childEnvironments");
});
it("generates Pages Router vite config for Pages Router project", () => {
mkdir(tmpDir, "pages");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
const viteFile = files.find((f) => f.description === "vite.config.ts");
expect(viteFile).toBeDefined();
expect(viteFile!.content).not.toContain("plugin-rsc");
});
});
// โโโ ensureESModule โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("ensureESModule", () => {
it("adds 'type': 'module' when missing", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ name: "test-app" }));
const added = ensureESModule(tmpDir);
expect(added).toBe(true);
const pkg = JSON.parse(fs.readFileSync(path.join(tmpDir, "package.json"), "utf-8"));
expect(pkg.type).toBe("module");
});
it("returns false when already has 'type': 'module'", () => {
writeFile(tmpDir, "package.json", JSON.stringify({ name: "test-app", type: "module" }));
const added = ensureESModule(tmpDir);
expect(added).toBe(false);
});
it("returns false when no package.json", () => {
const added = ensureESModule(tmpDir);
expect(added).toBe(false);
});
it("preserves existing package.json fields", () => {
writeFile(
tmpDir,
"package.json",
JSON.stringify({
name: "test-app",
version: "1.0.0",
dependencies: { react: "^19.0.0" },
}),
);
ensureESModule(tmpDir);
const pkg = JSON.parse(fs.readFileSync(path.join(tmpDir, "package.json"), "utf-8"));
expect(pkg.name).toBe("test-app");
expect(pkg.version).toBe("1.0.0");
expect(pkg.dependencies.react).toBe("^19.0.0");
expect(pkg.type).toBe("module");
});
});
// โโโ renameCJSConfigs โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("renameCJSConfigs", () => {
it("renames postcss.config.js using module.exports to .cjs", () => {
writeFile(tmpDir, "postcss.config.js", "module.exports = { plugins: {} };");
const renamed = renameCJSConfigs(tmpDir);
expect(renamed).toEqual([["postcss.config.js", "postcss.config.cjs"]]);
expect(fs.existsSync(path.join(tmpDir, "postcss.config.cjs"))).toBe(true);
expect(fs.existsSync(path.join(tmpDir, "postcss.config.js"))).toBe(false);
});
it("renames tailwind.config.js using require() to .cjs", () => {
writeFile(tmpDir, "tailwind.config.js", `const plugin = require("tailwindcss/plugin");\nmodule.exports = {};`);
const renamed = renameCJSConfigs(tmpDir);
expect(renamed).toEqual([["tailwind.config.js", "tailwind.config.cjs"]]);
});
it("does not rename ESM config files", () => {
writeFile(tmpDir, "postcss.config.js", "export default { plugins: {} };");
const renamed = renameCJSConfigs(tmpDir);
expect(renamed).toEqual([]);
expect(fs.existsSync(path.join(tmpDir, "postcss.config.js"))).toBe(true);
});
it("renames multiple CJS configs at once", () => {
writeFile(tmpDir, "postcss.config.js", "module.exports = {};");
writeFile(tmpDir, "tailwind.config.js", "module.exports = {};");
writeFile(tmpDir, ".eslintrc.js", "module.exports = {};");
const renamed = renameCJSConfigs(tmpDir);
expect(renamed).toHaveLength(3);
expect(renamed.map((r) => r[0])).toContain("postcss.config.js");
expect(renamed.map((r) => r[0])).toContain("tailwind.config.js");
expect(renamed.map((r) => r[0])).toContain(".eslintrc.js");
});
it("returns empty array when no CJS configs exist", () => {
const renamed = renameCJSConfigs(tmpDir);
expect(renamed).toEqual([]);
});
});
// โโโ detectProject: src/ directory support โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("detectProject โ src/ directory convention", () => {
it("detects App Router when src/app/ exists", () => {
mkdir(tmpDir, "src/app");
writeFile(tmpDir, "src/app/page.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.isPagesRouter).toBe(false);
});
it("detects Pages Router when only src/pages/ exists", () => {
mkdir(tmpDir, "src/pages");
writeFile(tmpDir, "src/pages/index.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(false);
expect(info.isPagesRouter).toBe(true);
});
it("prefers App Router when both src/app/ and src/pages/ exist", () => {
mkdir(tmpDir, "src/app");
mkdir(tmpDir, "src/pages");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.isPagesRouter).toBe(false);
});
it("prefers root-level app/ over src/app/", () => {
mkdir(tmpDir, "app");
mkdir(tmpDir, "src/app");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
});
it("prefers root-level pages/ over src/pages/", () => {
mkdir(tmpDir, "pages");
mkdir(tmpDir, "src/pages");
const info = detectProject(tmpDir);
expect(info.isPagesRouter).toBe(true);
});
it("detects App Router from root app/ even when src/pages/ exists", () => {
mkdir(tmpDir, "app");
mkdir(tmpDir, "src/pages");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.isPagesRouter).toBe(false);
});
it("detects ISR in src/app/ directory", () => {
mkdir(tmpDir, "src/app");
writeFile(
tmpDir,
"src/app/posts/page.tsx",
`export const revalidate = 60;\nexport default function Posts() { return <div>posts</div> }`,
);
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.hasISR).toBe(true);
});
it("does not detect ISR when src/app/ has no revalidate exports", () => {
mkdir(tmpDir, "src/app");
writeFile(tmpDir, "src/app/page.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.hasISR).toBe(false);
});
it("detects MDX in src/app/ directory", () => {
mkdir(tmpDir, "src/app");
writeFile(tmpDir, "src/app/about/page.mdx", "# About\nHello world");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(true);
expect(info.hasMDX).toBe(true);
});
it("detects MDX in src/pages/ directory", () => {
mkdir(tmpDir, "src/pages");
writeFile(tmpDir, "src/pages/about.mdx", "# About\nHello world");
const info = detectProject(tmpDir);
expect(info.isPagesRouter).toBe(true);
expect(info.hasMDX).toBe(true);
});
it("generates correct files for src/app/ project", () => {
mkdir(tmpDir, "src/app");
writeFile(tmpDir, "src/app/page.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
expect(files).toHaveLength(3);
const descriptions = files.map((f) => f.description);
expect(descriptions).toContain("wrangler.jsonc");
expect(descriptions).toContain("worker/index.ts");
expect(descriptions).toContain("vite.config.ts");
// Should generate App Router worker entry
const workerFile = files.find((f) => f.description === "worker/index.ts");
expect(workerFile!.content).toContain("vinext/server/app-router-entry");
});
it("generates correct files for src/pages/ project", () => {
mkdir(tmpDir, "src/pages");
writeFile(tmpDir, "src/pages/index.tsx", "export default function Home() { return <div>hi</div> }");
const info = detectProject(tmpDir);
const files = getFilesToGenerate(info);
expect(files).toHaveLength(3);
// Should generate Pages Router worker entry
const workerFile = files.find((f) => f.description === "worker/index.ts");
expect(workerFile!.content).toContain("virtual:vinext-server-entry");
});
it("detects neither when no app/, pages/, src/app/, or src/pages/", () => {
mkdir(tmpDir, "src/lib");
const info = detectProject(tmpDir);
expect(info.isAppRouter).toBe(false);
expect(info.isPagesRouter).toBe(false);
});
});
// โโโ detectProject: new fields โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("detectProject โ new detection features", () => {
it("detects hasTypeModule when package.json has type: module", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ name: "test", type: "module" }));
const info = detectProject(tmpDir);
expect(info.hasTypeModule).toBe(true);
});
it("hasTypeModule is false when missing", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ name: "test" }));
const info = detectProject(tmpDir);
expect(info.hasTypeModule).toBe(false);
});
it("detects MDX via .mdx files in app/", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/about/page.mdx", "# About\nHello world");
const info = detectProject(tmpDir);
expect(info.hasMDX).toBe(true);
});
it("detects MDX via @next/mdx in next.config", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "next.config.mjs", `import mdx from "@next/mdx";\nexport default mdx()({});`);
const info = detectProject(tmpDir);
expect(info.hasMDX).toBe(true);
});
it("hasMDX is false when no MDX usage", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/page.tsx", "export default function Home() { return <div/> }");
const info = detectProject(tmpDir);
expect(info.hasMDX).toBe(false);
});
it("detects CodeHike dependency", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ dependencies: { codehike: "^1.0.0" } }));
const info = detectProject(tmpDir);
expect(info.hasCodeHike).toBe(true);
});
it("hasCodeHike is false when not a dependency", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ dependencies: { react: "^19.0.0" } }));
const info = detectProject(tmpDir);
expect(info.hasCodeHike).toBe(false);
});
it("detects native modules to stub", () => {
mkdir(tmpDir, "app");
writeFile(
tmpDir,
"package.json",
JSON.stringify({ dependencies: { "@resvg/resvg-js": "^2.0.0", satori: "^0.10.0" } }),
);
const info = detectProject(tmpDir);
expect(info.nativeModulesToStub).toContain("@resvg/resvg-js");
expect(info.nativeModulesToStub).toContain("satori");
});
it("nativeModulesToStub is empty when no native deps", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "package.json", JSON.stringify({ dependencies: { react: "^19.0.0" } }));
const info = detectProject(tmpDir);
expect(info.nativeModulesToStub).toEqual([]);
});
});
// โโโ Generated Vite config with new features โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("generateAppRouterViteConfig โ with project info", () => {
it("delegates MDX to vinext plugin auto-injection (no separate mdx() call)", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/about/page.mdx", "# About");
const info = detectProject(tmpDir);
const config = generateAppRouterViteConfig(info);
// MDX is now handled by the vinext plugin's auto-injection at runtime,
// not by a separate mdx() call in the generated config.
expect(config).toContain("vinext()");
expect(config).toContain("auto-injects @mdx-js/rollup");
expect(config).not.toContain('import mdx from "@mdx-js/rollup"');
});
it("does not include CodeHike plugins in generated config (handled by vinext plugin)", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/about/page.mdx", "# About");
writeFile(tmpDir, "package.json", JSON.stringify({ dependencies: { codehike: "^1.0.0" } }));
const info = detectProject(tmpDir);
const config = generateAppRouterViteConfig(info);
// CodeHike plugins are extracted from next.config at runtime by the vinext plugin
expect(config).not.toContain("remarkCodeHike");
expect(config).not.toContain("recmaCodeHike");
expect(config).toContain("vinext()");
});
it("does not include tsconfig aliases in generated config (handled by plugin at runtime)", () => {
mkdir(tmpDir, "app");
writeFile(
tmpDir,
"tsconfig.json",
JSON.stringify({
compilerOptions: { baseUrl: ".", paths: { "#/*": ["./*"] } },
}),
);
const info = detectProject(tmpDir);
const config = generateAppRouterViteConfig(info);
expect(config).not.toContain('"#"');
});
it("includes native module stubs in resolve.alias", () => {
mkdir(tmpDir, "app");
writeFile(
tmpDir,
"package.json",
JSON.stringify({ dependencies: { "@resvg/resvg-js": "^2.0.0" } }),
);
const info = detectProject(tmpDir);
const config = generateAppRouterViteConfig(info);
expect(config).toContain("@resvg/resvg-js");
expect(config).toContain("empty-stub.js");
});
it("still works without info (backward compatible)", () => {
const config = generateAppRouterViteConfig();
expect(config).toContain("vinext()");
expect(config).toContain("cloudflare(");
// Generated config no longer includes a separate mdx() import/call
expect(config).not.toContain('import mdx from "@mdx-js/rollup"');
expect(config).not.toContain("resolve:");
});
});
describe("generatePagesRouterViteConfig โ with project info", () => {
it("does not include tsconfig aliases in generated config (handled by plugin at runtime)", () => {
mkdir(tmpDir, "pages");
writeFile(
tmpDir,
"tsconfig.json",
JSON.stringify({
compilerOptions: { baseUrl: ".", paths: { "@/*": ["./src/*"] } },
}),
);
const info = detectProject(tmpDir);
const config = generatePagesRouterViteConfig(info);
expect(config).not.toContain('"@"');
});
it("still works without info (backward compatible)", () => {
const config = generatePagesRouterViteConfig();
expect(config).toContain("vinext()");
expect(config).toContain("cloudflare()");
expect(config).not.toContain("resolve:");
});
});
// โโโ getMissingDeps with MDX โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("getMissingDeps โ MDX", () => {
it("reports @mdx-js/rollup when MDX detected but not installed", () => {
mkdir(tmpDir, "app");
writeFile(tmpDir, "app/about/page.mdx", "# About");
const info = detectProject(tmpDir);
info.hasCloudflarePlugin = true;
info.hasWrangler = true;
info.hasRscPlugin = true;
const missing = getMissingDeps(info);
expect(missing).toContainEqual(expect.objectContaining({ name: "@mdx-js/rollup" }));
});
});
// โโโ Integration: Full Detection of Real Fixtures โโโโโโโโโโโโโโโโโโโโโโโโโโโโ
describe("detectProject on real fixtures", () => {
const fixturesDir = path.resolve(import.meta.dirname, "../fixtures");
it("detects app-router-cloudflare fixture correctly", () => {
const cfApp = path.join(fixturesDir, "app-router-cloudflare");
if (!fs.existsSync(cfApp)) return; // skip if not available
const info = detectProject(cfApp);
expect(info.isAppRouter).toBe(true);
expect(info.hasViteConfig).toBe(true);
expect(info.hasWranglerConfig).toBe(true);
expect(info.hasWorkerEntry).toBe(true);
});
it("detects pages-router-cloudflare fixture correctly", () => {
const cfPages = path.join(fixturesDir, "pages-router-cloudflare");
if (!fs.existsSync(cfPages)) return; // skip if not available
const info = detectProject(cfPages);
expect(info.isPagesRouter).toBe(true);
expect(info.hasViteConfig).toBe(true);
expect(info.hasWranglerConfig).toBe(true);
expect(info.hasWorkerEntry).toBe(true);
});
it("generates zero files for fully-configured app-router-cloudflare", () => {
const cfApp = path.join(fixturesDir, "app-router-cloudflare");
if (!fs.existsSync(cfApp)) return;
const info = detectProject(cfApp);
const files = getFilesToGenerate(info);
expect(files).toHaveLength(0);
});
it("generates zero files for fully-configured pages-router-cloudflare", () => {
const cfPages = path.join(fixturesDir, "pages-router-cloudflare");
if (!fs.existsSync(cfPages)) return;
const info = detectProject(cfPages);
const files = getFilesToGenerate(info);
expect(files).toHaveLength(0);
});
it("would report missing deps for non-cloudflare fixture", () => {
const pagesBasic = path.join(fixturesDir, "pages-basic");
if (!fs.existsSync(pagesBasic)) return;
const info = detectProject(pagesBasic);
// pages-basic doesn't have @cloudflare/vite-plugin or wrangler in its own node_modules
// (it uses the hoisted root node_modules), but the check is per-project
// The important thing: getMissingDeps respects the detected flags
info.hasCloudflarePlugin = false;
info.hasWrangler = false;
const missing = getMissingDeps(info);
expect(missing.length).toBeGreaterThan(0);
});
});
// โโโ Cloudflare _headers generation โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
// These tests exercise the same logic used by the vinext:cloudflare-build
// plugin's closeBundle hook to generate a _headers file for static asset
// caching on Cloudflare Workers.
describe("Cloudflare _headers file generation", () => {
/** Replicates the _headers generation logic from the closeBundle hook. */
function generateHeaders(clientDir: string, assetsDir = "assets"): void {
const headersPath = path.join(clientDir, "_headers");
if (!fs.existsSync(headersPath)) {
const headersContent = [
"# Cache content-hashed assets immutably (generated by vinext)",
`/${assetsDir}/*`,
" Cache-Control: public, max-age=31536000, immutable",
"",
].join("\n");
fs.writeFileSync(headersPath, headersContent);
}
}
it("generates _headers with correct Cloudflare format", () => {
const clientDir = path.join(tmpDir, "dist", "client");
fs.mkdirSync(clientDir, { recursive: true });
generateHeaders(clientDir);
const content = fs.readFileSync(path.join(clientDir, "_headers"), "utf-8");
expect(content).toContain("/assets/*");
expect(content).toContain("Cache-Control: public, max-age=31536000, immutable");
// Verify Cloudflare _headers format: path on its own line, indented header below
const lines = content.split("\n");
const pathLine = lines.findIndex((l) => l === "/assets/*");
expect(pathLine).toBeGreaterThanOrEqual(0);
expect(lines[pathLine + 1]).toBe(" Cache-Control: public, max-age=31536000, immutable");
});
it("skips generation when _headers already exists", () => {
const clientDir = path.join(tmpDir, "dist", "client");
fs.mkdirSync(clientDir, { recursive: true });
const userContent = "/custom/*\n X-Custom: true\n";
fs.writeFileSync(path.join(clientDir, "_headers"), userContent);
generateHeaders(clientDir);
const content = fs.readFileSync(path.join(clientDir, "_headers"), "utf-8");
expect(content).toBe(userContent);
expect(content).not.toContain("/assets/*");
});
it("respects custom assetsDir", () => {
const clientDir = path.join(tmpDir, "dist", "client");
fs.mkdirSync(clientDir, { recursive: true });
generateHeaders(clientDir, "static");
const content = fs.readFileSync(path.join(clientDir, "_headers"), "utf-8");
expect(content).toContain("/static/*");
expect(content).not.toContain("/assets/*");
});
it("ends with a trailing newline", () => {
const clientDir = path.join(tmpDir, "dist", "client");
fs.mkdirSync(clientDir, { recursive: true });
generateHeaders(clientDir);
const content = fs.readFileSync(path.join(clientDir, "_headers"), "utf-8");
expect(content.endsWith("\n")).toBe(true);
});
});
// โโโ Cloudflare closeBundle: lazy chunk injection โโโโโโโโโโโโโโโโโโโโโโโโโโโโ
// These tests verify that the vinext:cloudflare-build closeBundle hook correctly
// injects __VINEXT_LAZY_CHUNKS__ and other globals into the worker entry for
// BOTH App Router and Pages Router builds. This was regressed by PR #358 which
// added an early return for App Router builds, skipping lazy chunk injection.
describe("Cloudflare closeBundle lazy chunk injection", () => {
/**
* Replicates the closeBundle hook logic for App Router builds.
* In #358's architecture, the RSC env IS the worker, so the worker entry
* is at dist/server/index.js. The RSC plugin handles __VINEXT_CLIENT_ENTRY__,
* but we still need to inject __VINEXT_LAZY_CHUNKS__ and __VINEXT_SSR_MANIFEST__.
*/
function simulateCloseBundleAppRouter(buildRoot: string): void {
const distDir = path.resolve(buildRoot, "dist");
if (!fs.existsSync(distDir)) return;
const clientDir = path.resolve(buildRoot, "dist", "client");
// Read build manifest and compute lazy chunks
let lazyChunksData: string[] | null = null;
const buildManifestPath = path.join(clientDir, ".vite", "manifest.json");
if (fs.existsSync(buildManifestPath)) {
try {
const buildManifest = JSON.parse(fs.readFileSync(buildManifestPath, "utf-8"));
const lazy = computeLazyChunks(buildManifest);
if (lazy.length > 0) lazyChunksData = lazy;
} catch { /* ignore */ }
}
// Read SSR manifest
let ssrManifestData: Record<string, string[]> | null = null;
const ssrManifestPath = path.join(clientDir, ".vite", "ssr-manifest.json");
if (fs.existsSync(ssrManifestPath)) {
try {
ssrManifestData = JSON.parse(fs.readFileSync(ssrManifestPath, "utf-8"));
} catch { /* ignore */ }
}
// App Router: inject into dist/server/index.js (NOT __VINEXT_CLIENT_ENTRY__)
const workerEntry = path.resolve(distDir, "server", "index.js");
if (fs.existsSync(workerEntry) && (lazyChunksData || ssrManifestData)) {
let code = fs.readFileSync(workerEntry, "utf-8");
const globals: string[] = [];
if (ssrManifestData) {
globals.push(`globalThis.__VINEXT_SSR_MANIFEST__ = ${JSON.stringify(ssrManifestData)};`);
}
if (lazyChunksData) {
globals.push(`globalThis.__VINEXT_LAZY_CHUNKS__ = ${JSON.stringify(lazyChunksData)};`);
}
code = globals.join("\n") + "\n" + code;
fs.writeFileSync(workerEntry, code);
}
}
/**
* Replicates the closeBundle hook logic for Pages Router builds.
* The worker entry is found by scanning dist/ for a directory containing
* wrangler.json. All three globals are injected.
*/
function simulateCloseBundlePagesRouter(buildRoot: string): void {
const distDir = path.resolve(buildRoot, "dist");
if (!fs.existsSync(distDir)) return;
const clientDir = path.resolve(buildRoot, "dist", "client");
// Find worker output directory (contains wrangler.json)
let workerOutDir: string | null = null;
for (const entry of fs.readdirSync(distDir)) {
const candidate = path.join(distDir, entry);
if (entry === "client") continue;
if (fs.statSync(candidate).isDirectory() &&
fs.existsSync(path.join(candidate, "wrangler.json"))) {
workerOutDir = candidate;
break;
}
}
if (!workerOutDir) return;
const workerEntry = path.join(workerOutDir, "index.js");
if (!fs.existsSync(workerEntry)) return;
// Read build manifest and compute lazy chunks
let lazyChunksData: string[] | null = null;
let clientEntryFile: string | null = null;
const buildManifestPath = path.join(clientDir, ".vite", "manifest.json");
if (fs.existsSync(buildManifestPath)) {
try {
const buildManifest = JSON.parse(fs.readFileSync(buildManifestPath, "utf-8"));
for (const [, value] of Object.entries(buildManifest) as [string, any][]) {
if (value && value.isEntry && value.file) {
clientEntryFile = value.file;
break;
}
}
const lazy = computeLazyChunks(buildManifest);
if (lazy.length > 0) lazyChunksData = lazy;
} catch { /* ignore */ }
}
// Read SSR manifest
let ssrManifestData: Record<string, string[]> | null = null;
const ssrManifestPath = path.join(clientDir, ".vite", "ssr-manifest.json");
if (fs.existsSync(ssrManifestPath)) {
try {
ssrManifestData = JSON.parse(fs.readFileSync(ssrManifestPath, "utf-8"));
} catch { /* ignore */ }
}
// Pages Router: inject all three globals
if (clientEntryFile || ssrManifestData || lazyChunksData) {
let code = fs.readFileSync(workerEntry, "utf-8");
const globals: string[] = [];
if (clientEntryFile) {
globals.push(`globalThis.__VINEXT_CLIENT_ENTRY__ = ${JSON.stringify(clientEntryFile)};`);
}
if (ssrManifestData) {
globals.push(`globalThis.__VINEXT_SSR_MANIFEST__ = ${JSON.stringify(ssrManifestData)};`);
}
if (lazyChunksData) {
globals.push(`globalThis.__VINEXT_LAZY_CHUNKS__ = ${JSON.stringify(lazyChunksData)};`);
}
code = globals.join("\n") + "\n" + code;
fs.writeFileSync(workerEntry, code);
}
}
/** Sets up a mock App Router build output directory structure. */
function setupAppRouterBuildOutput(
root: string,
manifest: Record<string, any>,
ssrManifest?: Record<string, string[]>,
): void {
// dist/server/index.js โ the RSC worker entry
fs.mkdirSync(path.join(root, "dist", "server"), { recursive: true });
fs.writeFileSync(
path.join(root, "dist", "server", "index.js"),
"// RSC worker entry\nexport default { fetch() {} };",
);
// dist/client/.vite/manifest.json
fs.mkdirSync(path.join(root, "dist", "client", ".vite"), { recursive: true });
fs.writeFileSync(
path.join(root, "dist", "client", ".vite", "manifest.json"),
JSON.stringify(manifest),
);
// dist/client/.vite/ssr-manifest.json (optional)
if (ssrManifest) {
fs.writeFileSync(
path.join(root, "dist", "client", ".vite", "ssr-manifest.json"),
JSON.stringify(ssrManifest),
);
}
}
/** Sets up a mock Pages Router build output directory structure. */
function setupPagesRouterBuildOutput(
root: string,
manifest: Record<string, any>,
ssrManifest?: Record<string, string[]>,
): void {
// dist/worker/ with wrangler.json and index.js
const workerDir = path.join(root, "dist", "worker");
fs.mkdirSync(workerDir, { recursive: true });
fs.writeFileSync(path.join(workerDir, "wrangler.json"), "{}");
fs.writeFileSync(
path.join(workerDir, "index.js"),
"// Pages Router worker entry\nexport default { fetch() {} };",
);
// dist/client/.vite/manifest.json
fs.mkdirSync(path.join(root, "dist", "client", ".vite"), { recursive: true });
fs.writeFileSync(
path.join(root, "dist", "client", ".vite", "manifest.json"),
JSON.stringify(manifest),
);
// dist/client/.vite/ssr-manifest.json (optional)
if (ssrManifest) {
fs.writeFileSync(
path.join(root, "dist", "client", ".vite", "ssr-manifest.json"),
JSON.stringify(ssrManifest),
);
}
}
// A realistic manifest with both eager and lazy chunks
const manifestWithLazyChunks = {
"virtual:vinext-app-browser-entry": {
file: "assets/app-entry.js",
isEntry: true,
imports: ["node_modules/react/index.js"],
dynamicImports: ["src/components/MermaidChart.tsx"],
},
"node_modules/react/index.js": {
file: "assets/framework.js",
},
"src/components/MermaidChart.tsx": {
file: "assets/mermaid-chart.js",
isDynamicEntry: true,
imports: ["node_modules/mermaid/dist/mermaid.js"],
},
"node_modules/mermaid/dist/mermaid.js": {
file: "assets/mermaid-vendor.js",
},
};
// โโ App Router tests โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
it("App Router: injects __VINEXT_LAZY_CHUNKS__ into dist/server/index.js", () => {
setupAppRouterBuildOutput(tmpDir, manifestWithLazyChunks);
simulateCloseBundleAppRouter(tmpDir);
const code = fs.readFileSync(path.join(tmpDir, "dist", "server", "index.js"), "utf-8");
expect(code).toContain("globalThis.__VINEXT_LAZY_CHUNKS__");
// Verify the lazy chunks are correct (mermaid-chart and mermaid-vendor are lazy)
const match = code.match(/globalThis\.__VINEXT_LAZY_CHUNKS__\s*=\s*(\[.*?\]);/);
expect(match).not.toBeNull();
const lazyChunks = JSON.parse(match![1]);
expect(lazyChunks).toContain("assets/mermaid-chart.js");
expect(lazyChunks).toContain("assets/mermaid-vendor.js");
// Eager chunks should NOT be in the lazy list
expect(lazyChunks).not.toContain("assets/app-entry.js");
expect(lazyChunks).not.toContain("assets/framework.js");
});
it("App Router: does NOT inject __VINEXT_CLIENT_ENTRY__", () => {
setupAppRouterBuildOutput(tmpDir, manifestWithLazyChunks);
simulateCloseBundleAppRouter(tmpDir);
const code = fs.readFileSync(path.join(tmpDir, "dist", "server", "index.js"), "utf-8");
// RSC plugin handles client entry via loadBootstrapScriptContent()
expect(code).not.toContain("__VINEXT_CLIENT_ENTRY__");
});
it("App Router: injects __VINEXT_SSR_MANIFEST__ when present", () => {
const ssrManifest = {
"src/app/page.tsx": ["/assets/page.js", "/assets/page.css"],
};
setupAppRouterBuildOutput(tmpDir, manifestWithLazyChunks, ssrManifest);
simulateCloseBundleAppRouter(tmpDir);
const code = fs.readFileSync(path.join(tmpDir, "dist", "server", "index.js"), "utf-8");
expect(code).toContain("globalThis.__VINEXT_SSR_MANIFEST__");
expect(code).toContain("src/app/page.tsx");
});
it("App Router: preserves original worker entry code after injection", () => {
setupAppRouterBuildOutput(tmpDir, manifestWithLazyChunks);
simulateCloseBundleAppRouter(tmpDir);
const code = fs.readFileSync(path.join(tmpDir, "dist", "server", "index.js"), "utf-8");
// Original code should still be present after the injected globals
expect(code).toContain("// RSC worker entry");
expect(code).toContain("export default { fetch() {} };");
});
it("App Router: skips injection when no lazy chunks and no SSR manifest", () => {
// Manifest with only eager (statically imported) chunks
const eagerOnlyManifest = {
"src/entry.ts": {
file: "assets/entry.js",
isEntry: true,
imports: ["src/utils.ts"],
},
"src/utils.ts": {
file: "assets/utils.js",
},
};
setupAppRouterBuildOutput(tmpDir, eagerOnlyManifest);
simulateCloseBundleAppRouter(tmpDir);
const code = fs.readFileSync(path.join(tmpDir, "dist", "server", "index.js"), "utf-8");
// No globals should be injected since there are no lazy chunks and no SSR manifest
expect(code).not.toContain("globalThis.__VINEXT_LAZY_CHUNKS__");
expect(code).not.toContain("globalThis.__VINEXT_SSR_MANIFEST__");
// Original code untouched
expect(code).toBe("// RSC worker entry\nexport default { fetch() {} };");
});
it("App Router: handles missing dist/server/index.js gracefully", () => {
// Only set up client manifest, no server output
fs.mkdirSync(path.join(tmpDir, "dist", "client", ".vite"), { recursive: true });
fs.writeFileSync(
path.join(tmpDir, "dist", "client", ".vite", "manifest.json"),
JSON.stringify(manifestWithLazyChunks),
);
// Should not throw
expect(() => simulateCloseBundleAppRouter(tmpDir)).not.toThrow();
});
// โโ Pages Router tests โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
it("Pages Router: injects all three globals into worker entry", () => {
const ssrManifest = {
"pages/index.tsx": ["/assets/page-index.js", "/assets/page-index.css"],
};
setupPagesRouterBuildOutput(tmpDir, manifestWithLazyChunks, ssrManifest);
simulateCloseBundlePagesRouter(tmpDir);
const code = fs.readFileSync(path.join(tmpDir, "dist", "worker", "index.js"), "utf-8");
expect(code).toContain("globalThis.__VINEXT_CLIENT_ENTRY__");
expect(code).toContain("globalThis.__VINEXT_SSR_MANIFEST__");
expect(code).toContain("globalThis.__VINEXT_LAZY_CHUNKS__");
});
it("Pages Router: injects correct lazy chunks", () => {
setupPagesRouterBuildOutput(tmpDir, manifestWithLazyChunks);
simulateCloseBundlePagesRouter(tmpDir);
const code = fs.readFileSync(path.join(tmpDir, "dist", "worker", "index.js"), "utf-8");
const match = code.match(/globalThis\.__VINEXT_LAZY_CHUNKS__\s*=\s*(\[.*?\]);/);
expect(match).not.toBeNull();
const lazyChunks = JSON.parse(match![1]);
expect(lazyChunks).toContain("assets/mermaid-chart.js");
expect(lazyChunks).toContain("assets/mermaid-vendor.js");
expect(lazyChunks).not.toContain("assets/app-entry.js");
expect(lazyChunks).not.toContain("assets/framework.js");
});
it("Pages Router: finds worker entry via wrangler.json directory scan", () => {
setupPagesRouterBuildOutput(tmpDir, manifestWithLazyChunks);
simulateCloseBundlePagesRouter(tmpDir);
// Worker entry should have been modified
const code = fs.readFileSync(path.join(tmpDir, "dist", "worker", "index.js"), "utf-8");
expect(code).toContain("globalThis.");
expect(code).toContain("// Pages Router worker entry");
});
it("Pages Router: skips client dir when no wrangler.json found", () => {
// Set up worker dir without wrangler.json
const workerDir = path.join(tmpDir, "dist", "worker");
fs.mkdirSync(workerDir, { recursive: true });
fs.writeFileSync(
path.join(workerDir, "index.js"),
"// unmodified",
);
fs.mkdirSync(path.join(tmpDir, "dist", "client", ".vite"), { recursive: true });
fs.writeFileSync(
path.join(tmpDir, "dist", "client", ".vite", "manifest.json"),
JSON.stringify(manifestWithLazyChunks),
);
simulateCloseBundlePagesRouter(tmpDir);
// Worker entry should NOT have been modified (no wrangler.json found)
const code = fs.readFileSync(path.join(workerDir, "index.js"), "utf-8");
expect(code).toBe("// unmodified");
});
// โโ Shared behavior tests โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
it("both routers: computeLazyChunks correctly identifies dynamic-only chunks", () => {
const lazy = computeLazyChunks(manifestWithLazyChunks);
// mermaid-chart.js and mermaid-vendor.js are only reachable via dynamicImports
expect(lazy).toContain("assets/mermaid-chart.js");
expect(lazy).toContain("assets/mermaid-vendor.js");
// app-entry.js (entry) and framework.js (static import) are eager
expect(lazy).not.toContain("assets/app-entry.js");
expect(lazy).not.toContain("assets/framework.js");
});
it("both routers: mermaid-like deep dynamic chains are fully lazy", () => {
// Simulates a real-world case: mermaid imports d3 which imports d3-selection etc.
const deepDynamicManifest = {
"virtual:vinext-app-browser-entry": {
file: "assets/entry.js",
isEntry: true,
imports: ["node_modules/react/index.js"],
dynamicImports: ["src/components/Chart.tsx"],
},
"node_modules/react/index.js": {
file: "assets/framework.js",
},
"src/components/Chart.tsx": {
file: "assets/chart.js",
isDynamicEntry: true,
imports: ["node_modules/mermaid/dist/mermaid.js"],
},
"node_modules/mermaid/dist/mermaid.js": {
file: "assets/mermaid.js",
imports: ["node_modules/d3/src/index.js"],
},
"node_modules/d3/src/index.js": {
file: "assets/d3.js",
imports: ["node_modules/d3-selection/src/index.js"],
},
"node_modules/d3-selection/src/index.js": {
file: "assets/d3-selection.js",
},
};
const lazy = computeLazyChunks(deepDynamicManifest);
// All chunks behind the dynamic boundary should be lazy
expect(lazy).toContain("assets/chart.js");
expect(lazy).toContain("assets/mermaid.js");
expect(lazy).toContain("assets/d3.js");
expect(lazy).toContain("assets/d3-selection.js");
// Entry and framework are eager
expect(lazy).not.toContain("assets/entry.js");
expect(lazy).not.toContain("assets/framework.js");
});
});