Add m-esr52 at 52.6.0

1 files changed, 21 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/collections/Map-iterator-proxies-2.js b/js/src/jit-test/tests/collections/Map-iterator-proxies-2.js
new file mode 100644
index 000000000..9b1c8bb98
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Map-iterator-proxies-2.js
@@ -0,0 +1,21 @@
+// map.iterator() and iter.next() are non-generic but work on cross-compartment wrappers.
+
+load(libdir + "asserts.js");
+load(libdir + "eqArrayHelper.js");
+load(libdir + "iteration.js");
+
+var g = newGlobal();
+
+var iterator_fn = Map.prototype[Symbol.iterator];
+assertThrowsInstanceOf(function () { iterator_fn.call({}); }, TypeError);
+assertThrowsInstanceOf(function () { iterator_fn.call(new Set()); }, TypeError);
+var mapw = g.eval("new Map([['x', 1], ['y', 2]])");
+assertEqArray(iterator_fn.call(mapw).next().value, ["x", 1]);
+
+var next_fn = (new Map())[Symbol.iterator]().next;
+assertThrowsInstanceOf(function () { next_fn.call({}); }, TypeError);
+assertThrowsInstanceOf(function () { next_fn.call((new Set())[Symbol.iterator]()); }, TypeError);
+var iterw = mapw[Symbol.iterator]();
+assertEqArray(next_fn.call(iterw).value, ["x", 1]);
+assertEqArray(next_fn.call(iterw).value, ["y", 2]);
+assertEq(next_fn.call(iterw).done, true);