nodejs
diff --git a/‎test/parallel/test-intl.js‎
Lines changed: 11 additions & 0 deletions b/‎test/parallel/test-intl.js‎
Lines changed: 11 additions & 0 deletions
@@ -22,6 +22,7 @@
 'use strict';
 const common = require('../common');
 const assert = require('assert');
+const { execFile } = require('child_process');
 
 // does node think that i18n was enabled?
 let enablei18n = process.config.variables.v8_enable_i18n_support;
@@ -125,4 +126,14 @@ if (!common.hasIntl) {
   assert.strictEqual(coll.compare('Bluebird', 'bluebird'), 0);
   // ffi ligature (contraction)
   assert.strictEqual(coll.compare('\ufb03', 'ffi'), 0);
+
+  {
+    // Regression test for https://github.com/nodejs/node/issues/27379
+    const env = { ...process.env, LC_ALL: 'ja' };
+    execFile(
+      process.execPath, ['-p', 'new Date().toLocaleString()'],
+      { env },
+      common.mustCall((e) => assert.ifError(e))
+    );
+  }
 }