skip symlinks tests when unsupported

Author: mrkishi

packages/kit/src/core/sync/create_manifest_data/index.spec.js

@@ -1,3 +1,4 @@
+import fs from 'fs';
 import path from 'path';
 import { fileURLToPath } from 'url';
 import { test } from 'uvu';
@@ -95,7 +96,13 @@ test('creates routes', () => {
 	]);
 });
 
-test('creates symlinked routes', () => {
+const symlink_survived_git = fs
+	.statSync(path.join(cwd, 'samples/symlinks/routes/foo'))
+	.isSymbolicLink();
+
+const test_symlinks = symlink_survived_git ? test : test.skip;
+
+test_symlinks('creates symlinked routes', () => {
 	const { components, routes } = create('samples/symlinks/routes');
 
 	const index = 'samples/symlinks/routes/index.svelte';