1 files changed, 112 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/structured-clone/Map.js b/js/src/jit-test/tests/structured-clone/Map.js
new file mode 100644
index 0000000000..51ac240961
--- /dev/null
+++ b/js/src/jit-test/tests/structured-clone/Map.js
@@ -0,0 +1,112 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+load(libdir + "asserts.js");
+
+var map = new Map();
+map.set("self", map);
+
+var magic = deserialize(serialize(map));
+assertEq(magic.get("self"), magic);
+assertEq(magic.size, 1);
+
+map = new Map();
+map.set(map, "self");
+
+magic = deserialize(serialize(map));
+assertEq(magic.get(magic), "self");
+assertEq(magic.size, 1);
+
+var values = [
+    "a", "\uDEFF", undefined, null, -3.5, true, false, NaN, 155, -2
+]
+
+map = new Map();
+for (var value of values) {
+    map.set(value, value);
+}
+
+magic = deserialize(serialize(map));
+var i = 0;
+for (value of magic) {
+    assertEq(value[0], value[1]);
+    assertEq(value[0], values[i++]);
+}
+
+assertDeepEq([...map.keys()], [...magic.keys()]);
+assertDeepEq([...map.values()], [...magic.values()]);
+
+var obj = {a: 1};
+obj.map = new Map();
+obj.map.set("obj", obj);
+
+magic = deserialize(serialize(obj));
+
+assertEq(magic.map.get("obj"), magic);
+assertEq(magic.a, 1);
+
+map = new Map();
+map.set("a", new Number(1));
+map.set("b", new String("aaaa"));
+map.set("c", new Date(NaN));
+
+magic = deserialize(serialize(map));
+
+assertEq(magic.get("a").valueOf(), 1);
+assertEq(magic.get("b").valueOf(), "aaaa");
+assertEq(magic.get("c").valueOf(), NaN);
+
+assertDeepEq([...map.keys()], ["a", "b", "c"]);
+
+map = new Map();
+map.set("x", new Map());
+map.get("x").set("x", map);
+map.get("x").set("b", null);
+
+magic = deserialize(serialize(map));
+
+assertEq(magic.get("x").get("x"), magic);
+assertEq(magic.get("x").get("b"), null);
+
+map = new Map()
+map.set({a: 1}, "b");
+
+magic = deserialize(serialize(map));
+
+obj = [...magic.keys()][0];
+assertEq(obj.a, 1);
+assertEq(magic.get(obj), "b");
+
+// Make sure expandos aren't cloned (Bug 1041172)
+map = new Map();
+map.a = "aaaaa";
+magic = deserialize(serialize(map));
+assertEq("a" in magic, false);
+assertEq(Object.keys(magic).length, 0);
+
+// Busted [[Prototype]] shouldn't matter
+map = new Map();
+Object.setPrototypeOf(map, null);
+Map.prototype.set.call(map, "self", map);
+magic = deserialize(serialize(map));
+assertEq(magic.get("self"), magic);
+assertEq(magic.size, 1);
+
+// Can't fuzz around with Map after it is cloned
+obj = {
+    a: new Map(),
+    get b() {
+        obj.a.delete("test");
+        return "invoked";
+    }
+}
+obj.a.set("test", "hello");
+assertEq(obj.a.has("test"), true);
+magic = deserialize(serialize(obj));
+assertEq(obj.a.has("test"), false);
+assertEq(magic.a.size, 1);
+assertEq(magic.a.get("test"), "hello");
+assertEq([...magic.a.keys()].toString(), "test");
+assertEq(magic.b, "invoked");
+\ No newline at end of file