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_("Make sure various combinations of deferGetSet arguments correctly defer getting/setting properties to another object");
Cu.import("resource://services-sync/util.js");
function run_test() {
let base = function() {};
base.prototype = {
dst: {},
get a() "a",
set b(val) this.dst.b = val + "!!!"
};
let src = new base();
_("get/set a single property");
Utils.deferGetSet(base, "dst", "foo");
src.foo = "bar";
do_check_eq(src.dst.foo, "bar");
do_check_eq(src.foo, "bar");
_("editing the target also updates the source");
src.dst.foo = "baz";
do_check_eq(src.dst.foo, "baz");
do_check_eq(src.foo, "baz");
_("handle multiple properties");
Utils.deferGetSet(base, "dst", ["p1", "p2"]);
src.p1 = "v1";
src.p2 = "v2";
do_check_eq(src.p1, "v1");
do_check_eq(src.dst.p1, "v1");
do_check_eq(src.p2, "v2");
do_check_eq(src.dst.p2, "v2");
_("make sure existing getter keeps its functionality");
Utils.deferGetSet(base, "dst", "a");
src.a = "not a";
do_check_eq(src.dst.a, "not a");
do_check_eq(src.a, "a");
_("make sure existing setter keeps its functionality");
Utils.deferGetSet(base, "dst", "b");
src.b = "b";
do_check_eq(src.dst.b, "b!!!");
do_check_eq(src.b, "b!!!");
}
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