1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/string-fromcodepoint.js b/js/src/jit-test/tests/cacheir/string-fromcodepoint.js
new file mode 100644
index 0000000000..254f41fd85
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/string-fromcodepoint.js
@@ -0,0 +1,15 @@
+function f() {
+  for (var i = 0x10F000; i <= 0x10FFFF + 1; ++i) {
+    String.fromCodePoint(i);
+  }
+}
+
+for (var i = 0; i < 2; ++i) {
+  var err;
+  try {
+    f();
+  } catch (e) {
+    err = e;
+  }
+  assertEq(err instanceof RangeError, true);
+}