diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/collections/Map-constructor-5.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/collections/Map-constructor-5.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+// Map(arr) throws if arr contains holes (or undefined values).
+
+load(libdir + "asserts.js");
+assertThrowsInstanceOf(function () { Map([undefined]); }, TypeError);
+assertThrowsInstanceOf(function () { Map([null]); }, TypeError);
+assertThrowsInstanceOf(function () { Map([[0, 0], [1, 1], , [3, 3]]); }, TypeError);
+assertThrowsInstanceOf(function () { Map([[0, 0], [1, 1], ,]); }, TypeError);
+
+// Map(iterable) throws if iterable doesn't have array-like objects
+
+assertThrowsInstanceOf(function () { Map([1, 2, 3]); }, TypeError);
+assertThrowsInstanceOf(function () {
+	let s = new Set([1, 2, "abc"]);
+	new Map(s);
+}, TypeError);