1 files changed, 84 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/structured-clone/Set.js b/js/src/jit-test/tests/structured-clone/Set.js
new file mode 100644
index 0000000000..76c1651715
--- /dev/null
+++ b/js/src/jit-test/tests/structured-clone/Set.js
@@ -0,0 +1,84 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+load(libdir + "asserts.js");
+
+var set = new Set();
+set.add(set);
+
+var magic = deserialize(serialize(set));
+assertEq(magic.size, 1);
+assertEq(magic.values().next().value, magic);
+
+var values = [
+    "a", "\uDEFF", undefined, null, -3.5, true, false, NaN, 155, -2
+]
+
+set = new Set();
+for (var value of values) {
+    set.add(value)
+}
+
+magic = deserialize(serialize(set));
+var i = 0;
+for (value of magic) {
+    assertEq(value, values[i++]);
+}
+
+assertDeepEq([...set.keys()], [...magic.keys()]);
+assertDeepEq([...set.values()], [...magic.values()]);
+
+var obj = {a: 1};
+obj.set = new Set();
+obj.set.add(obj);
+
+magic = deserialize(serialize(obj));
+
+assertEq(magic.set.values().next().value, magic);
+assertEq(magic.a, 1);
+
+set = new Set();
+set.add(new Number(1));
+set.add(new String("aaaa"));
+set.add(new Date(NaN));
+
+magic = deserialize(serialize(set));
+
+values = magic.values();
+assertEq(values.next().value.valueOf(), 1);
+assertEq(values.next().value.valueOf(), "aaaa");
+assertEq(values.next().value.valueOf(), NaN);
+assertEq(values.next().done, true);
+
+// Make sure expandos aren't cloned (Bug 1041172)
+set = new Set();
+set.a = "aaaaa";
+magic = deserialize(serialize(set));
+assertEq("a" in magic, false);
+assertEq(Object.keys(magic).length, 0);
+
+// Busted [[Prototype]] shouldn't matter
+set = new Set();
+Object.setPrototypeOf(set, null);
+Set.prototype.add.call(set, "aaa");
+magic = deserialize(serialize(set));
+assertEq(magic.has("aaa"), true);
+assertEq(magic.size, 1);
+
+// Can't fuzz around with Set after it is cloned
+obj = {
+    a: new Set(),
+    get b() {
+        obj.a.delete("test");
+        return "invoked";
+    }
+}
+obj.a.add("test");
+assertEq(obj.a.has("test"), true);
+magic = deserialize(serialize(obj));
+assertEq(obj.a.has("test"), false);
+assertEq(magic.a.size, 1);
+assertEq([...magic.a.keys()].toString(), "test");
+assertEq(magic.b, "invoked");
+\ No newline at end of file