1 files changed, 6 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Map-clear-6.js b/js/src/jit-test/tests/collections/Map-clear-6.js
new file mode 100644
index 000000000..4df7388f5
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Map-clear-6.js
@@ -0,0 +1,6 @@
+// Clearing a Map doesn't affect expando properties.
+
+var m = new Map();
+m.x = 3;
+m.clear();
+assertEq(m.x, 3);