test(glob-import): cover absolute base resolving to files outside root

playground/glob-import/__tests__/glob-import.spec.ts

@@ -367,3 +367,14 @@ test('import.meta.glob and dynamic import vars transformations should be visible
       JSON.stringify({ globTransformed: true, dynamicImportTransformed: true }),
     )
 })
+
+test('absolute base with files outside of root', async () => {
+  await expect
+    .poll(async () =>
+      JSON.parse(await page.textContent('.absolute-base-outside-root')),
+    )
+    .toStrictEqual({
+      '../external/x.js': 'hello from x',
+      '../external/y.js': 'hello from y',
+    })
+})

playground/glob-import/external/x.js

@@ -0,0 +1 @@
+export const msg = 'hello from x'

playground/glob-import/external/y.js

@@ -0,0 +1 @@
+export const msg = 'hello from y'

playground/glob-import/root/index.html

@@ -313,3 +313,24 @@ <h2>Transform visibility</h2>
   document.querySelector('.transform-visibility').textContent =
     JSON.stringify(result)
 </script>
+
+<h2>Absolute base outside root</h2>
+<pre class="absolute-base-outside-root"></pre>
+
+<script type="module">
+  // Regression test for https://github.com/rolldown/rolldown/issues/9144:
+  // `import.meta.glob` with `base: '/'` matching files outside of vite's root
+  // must emit a root-relative import path (prefixed with `/`) rather than an
+  // importer-relative one, otherwise the bundler resolves it against the
+  // importer and lands on a non-existent file.
+  const modules = import.meta.glob('../external/*.js', {
+    eager: true,
+    base: '/',
+  })
+  document.querySelector('.absolute-base-outside-root').textContent =
+    JSON.stringify(
+      Object.fromEntries(Object.entries(modules).map(([k, v]) => [k, v.msg])),
+      null,
+      2,
+    )
+</script>