minor test improvements

test/test.js

@@ -1,25 +1,30 @@
+// @ts-check
+
+import { build, dev } from 'astro';
 import assert from 'node:assert';
-import { existsSync, readdirSync } from 'node:fs';
+import { existsSync } from 'node:fs';
+import { readdir } from 'node:fs/promises';
+import { join } from 'node:path';
 import { describe, it } from 'node:test';
-import { build, dev } from 'astro';
+import { fileURLToPath } from 'node:url';
 
-const templatesDir = './templates/';
-const templates = readdirSync(templatesDir);
+const templatesDir = join(fileURLToPath(import.meta.url), '../../templates');
 
-for (const template of templates) {
+for (const template of await readdir(templatesDir)) {
  describe(template, () => {
- const root = templatesDir + template;
+ const root = join(templatesDir, template);
 
  it('builds successfully', async () => {
- await build({ root, logLevel: 'silent' });
+ await build({ root, logLevel: 'error' });
+ const distDir = join(root, 'dist');
  assert.ok(
- existsSync(`${root}/dist`),
- `Expected "dist/" directory for template "${template}", but found none.`,
+ existsSync(distDir),
+ `Expected "dist" directory for template "${template}", but ${distDir} does not exist.`,
  );
  });
 
  it('runs the dev server successfully', async () => {
- const server = await dev({ root, logLevel: 'silent' });
+ const server = await dev({ root, logLevel: 'error' });
  const res = await fetch(`http://localhost:${server.address.port}/`);
  assert.strictEqual(
  res.status,