Fix Windows path escaping in Vitest config for fast-check alias

github-actions[bot] · dubzzz · github-actions[bot] · commit 452c3bab6e2c · 2026-03-23T19:38:29.000Z
Use JSON.stringify to properly escape backslashes in the fast-check
source path when writing the Vitest config file. On Windows, path.join
produces backslashes which were interpreted as escape characters in the
JS string literal, causing 'Cannot find package fast-check' errors.

Co-authored-by: Nicolas DUBIEN &lt;dubzzz@users.noreply.github.com&gt;
diff --git a/website/docs/tutorials/detect-race-conditions/snippets.spec.mjs b/website/docs/tutorials/detect-race-conditions/snippets.spec.mjs
@@ -82,7 +82,7 @@ describe('Playground', () => {
             await fs.writeFile(
               vitestConfigPath,
               `import { defineConfig } from 'vitest/config';\n` +
-                `export default defineConfig({ test: { include: ['queue.spec.mjs'] }, resolve: { alias: { 'fast-check': '${fastCheckSourcePath}' } } });`,
+                `export default defineConfig({ test: { include: ['queue.spec.mjs'] }, resolve: { alias: { 'fast-check': ${JSON.stringify(fastCheckSourcePath)} } } });`,
             );
             const specOutput = await runVitest(testDirectoryPath);
             if (expectedSuccess) {
