1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/S15.10.4.1_A5_T4.js b/js/src/tests/test262/built-ins/RegExp/S15.10.4.1_A5_T4.js
new file mode 100644
index 0000000000..79a64437da
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/S15.10.4.1_A5_T4.js
@@ -0,0 +1,24 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    If F contains any character other than 'g', 'i', or 'm', or if it
+    contains the same one more than once, then throw a SyntaxError exception
+es5id: 15.10.4.1_A5_T4
+description: Checking if using "z" as F leads to throwing the correct exception
+---*/
+
+try {
+    throw new Test262Error('#1.1: new RegExp("a|b","z") throw SyntaxError. Actual: ' + (new RegExp("a|b","z")));
+} catch (e) {
+  assert.sameValue(
+    e instanceof SyntaxError,
+    true,
+    'The result of evaluating (e instanceof SyntaxError) is expected to be true'
+  );
+}
+
+// TODO: Convert to assert.throws() format.
+
+reportCompare(0, 0);