1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/isArray.js b/js/src/jit-test/tests/ion/isArray.js
new file mode 100644
index 000000000..1c9ff2810
--- /dev/null
+++ b/js/src/jit-test/tests/ion/isArray.js
@@ -0,0 +1,15 @@
+function f() {
+    assertEq(Array.isArray(10), false);
+    assertEq(Array.isArray([]), true);
+    assertEq(Array.isArray(Math), false);
+
+    var objs = [{}, []];
+    for (var i=0; i<objs.length; i++)
+        assertEq(Array.isArray(objs[i]), i === 1);
+    var arr = [[], [], 1];
+    for (var i=0; i<arr.length; i++)
+        assertEq(Array.isArray(arr[i]), i < 2);
+}
+f();
+f();
+f();