1 files changed, 7 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/write-frozen-property.js b/js/src/jit-test/tests/basic/write-frozen-property.js
new file mode 100644
index 0000000000..a6228fbb00
--- /dev/null
+++ b/js/src/jit-test/tests/basic/write-frozen-property.js
@@ -0,0 +1,7 @@
+function foo(x) {
+  x.a = 10;
+  assertEq(x.a, 0);
+}
+x = {a:0,b:1};
+Object.freeze(x);
+foo(x);