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_(
"Make sure various combinations of deferGetSet arguments correctly defer getting/setting properties to another object"
);
function run_test() {
let base = function () {};
base.prototype = {
dst: {},
get a() {
return "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";
Assert.equal(src.dst.foo, "bar");
Assert.equal(src.foo, "bar");
_("editing the target also updates the source");
src.dst.foo = "baz";
Assert.equal(src.dst.foo, "baz");
Assert.equal(src.foo, "baz");
_("handle multiple properties");
Utils.deferGetSet(base, "dst", ["p1", "p2"]);
src.p1 = "v1";
src.p2 = "v2";
Assert.equal(src.p1, "v1");
Assert.equal(src.dst.p1, "v1");
Assert.equal(src.p2, "v2");
Assert.equal(src.dst.p2, "v2");
_("make sure existing getter keeps its functionality");
Utils.deferGetSet(base, "dst", "a");
src.a = "not a";
Assert.equal(src.dst.a, "not a");
Assert.equal(src.a, "a");
_("make sure existing setter keeps its functionality");
Utils.deferGetSet(base, "dst", "b");
src.b = "b";
Assert.equal(src.dst.b, "b!!!");
Assert.equal(src.b, "b!!!");
}
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