Bug 557591 - Add tests for Utils.deferGetSet.

This commit is contained in:
Edward Lee 2010-05-14 17:31:24 -07:00
parent 36f17f2c20
commit cdf7defc20

View File

@ -0,0 +1,52 @@
_("Make sure various combinations of deferGetSet arguments correctly defer getting/setting properties to another object");
Cu.import("resource://weave/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");
_("handle dotted properties");
src.dst.nest = {};
Utils.deferGetSet(base, "dst.nest", "prop");
src.prop = "val";
do_check_eq(src.prop, "val");
do_check_eq(src.dst.nest.prop, "val");
_("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!!!");
}