flanksource
diff --git a/‎cli/test/remote-rendering.test.ts‎
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+import { execFile } from 'node:child_process';
+import { mkdir, mkdtemp, readFile, rm, writeFile } from 'node:fs/promises';
+import { join, resolve } from 'node:path';
+import { promisify } from 'node:util';
+
+import { PDFDocument } from 'pdf-lib';
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+
+import { createServer, type ServerHandle } from '../src/server/preview.js';
+
+const execFileAsync = promisify(execFile);
+const cliRoot = resolve(import.meta.dirname, '..');
+const repositoryRoot = resolve(cliRoot, '..');
+const scratchRoot = resolve(cliRoot, '.tmp');
+
+describe('remote CLI rendering', () => {
+  let server: ServerHandle;
+  let workspace: string;
+  let template: string;
+  let data: string;
+  let outputDirectory: string;
+
+  beforeAll(async () => {
+    process.env['FACET_PACKAGE_PATH'] = repositoryRoot;
+    process.env['FACET_LOW_PRIORITY'] = '0';
+    await mkdir(scratchRoot, { recursive: true });
+    workspace = await mkdtemp(join(scratchRoot, 'remote-rendering-'));
+    const project = join(workspace, 'project');
+    outputDirectory = join(workspace, 'output');
+    template = join(project, 'RemoteReport.tsx');
+    data = join(project, 'data.json');
+
+    await mkdir(project, { recursive: true });
+    await writeFile(join(project, 'package.json'), JSON.stringify({
+      name: 'remote-rendering-fixture',
+      private: true,
+    }));
+    await writeFile(template, `
+import React from 'react';
+
+export default function RemoteReport({ data }: { data: { title: string } }) {
+  return <html><body><h1>{data.title}</h1></body></html>;
+}
+`);
+    await writeFile(data, JSON.stringify({ title: 'Rendered by remote Facet' }));
+
+    server = await createServer({
+      port: 0,
+      templatesDir: join(cliRoot, 'examples'),
+      workers: 1,
+      renderTimeout: 180000,
+      maxUploadSize: 52428800,
+      cacheMaxSize: 104857600,
+      cacheDir: join(workspace, 'cache'),
+      verbose: false,
+    });
+  }, 30000);
+
+  afterAll(async () => {
+    await server?.stop();
+    await rm(workspace, { recursive: true, force: true });
+  }, 15000);
+
+  it('renders HTML through the server selected by FACET_URL', async () => {
+    const output = join(outputDirectory, 'remote.html');
+
+    await execFileAsync(process.execPath, [
+      '--import', 'tsx',
+      'src/cli.ts',
+      'html', template,
+      '--data', data,
+      '--output', output,
+    ], {
+      cwd: cliRoot,
+      env: { ...process.env, FACET_URL: server.url },
+      timeout: 180000,
+    });
+
+    await expect(readFile(output, 'utf-8')).resolves.toContain('Rendered by remote Facet');
+  }, 180000);
+
+  it('renders PDF through --facet-url when FACET_URL points elsewhere', async () => {
+    const output = join(outputDirectory, 'remote.pdf');
+
+    await execFileAsync(process.execPath, [
+      '--import', 'tsx',
+      'src/cli.ts',
+      '--facet-url', server.url,
+      'pdf', template,
+      '--data', data,
+      '--output', output,
+    ], {
+      cwd: cliRoot,
+      env: { ...process.env, FACET_URL: 'http://127.0.0.1:1' },
+      timeout: 180000,
+    });
+
+    const pdf = await PDFDocument.load(await readFile(output));
+    expect(pdf.getPageCount()).toBeGreaterThanOrEqual(1);
+  }, 180000);
+});