Add m-esr52 at 52.6.0

1 files changed, 41 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/extensions/array-isArray-proxy-recursion.js b/js/src/tests/ecma_6/extensions/array-isArray-proxy-recursion.js
new file mode 100644
index 000000000..ca2907a99
--- /dev/null
+++ b/js/src/tests/ecma_6/extensions/array-isArray-proxy-recursion.js
@@ -0,0 +1,41 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 1282047;
+var summary = 'Infinite recursion via Array.isArray on a proxy';
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var proxy = Proxy.revocable([], {}).proxy;
+
+// A depth of 100000 ought to be enough for any platform to consume its entire
+// stack, hopefully without making any recalcitrant platforms time out.  If no
+// timeout happens, the assertEq checks for the proper expected value.
+for (var i = 0; i < 1e5; i++)
+  proxy = new Proxy(proxy, {});
+
+try
+{
+  assertEq(Array.isArray(proxy), true);
+
+  // If we reach here, it's cool, we just didn't consume the entire stack.
+}
+catch (e)
+{
+  assertEq(e instanceof InternalError, true,
+           "should have thrown for over-recursion");
+}
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");