michael@0: "use strict";
michael@0: 
michael@0: Components.utils.import("resource:///modules/ContentUtil.jsm");
michael@0: let Util = ContentUtil;
michael@0: 
michael@0: function run_test() {
michael@0:   do_print("Testing Util.extend");
michael@0: 
michael@0:   do_print("Check if function is defined");
michael@0:   do_check_true(!!Util.extend);
michael@0: 
michael@0:   do_print("No parameter or null should return a new object");
michael@0:   let noArgRes = Util.extend();
michael@0:   do_check_true(noArgRes && typeof noArgRes == "object");
michael@0: 
michael@0:   let nullRes = Util.extend(null);
michael@0:   do_check_true(nullRes && typeof nullRes == "object");
michael@0: 
michael@0:   do_print("Simple extend");
michael@0:   let simpleExtend = {a: 1, b: 2};
michael@0:   let simpleExtendResult = Util.extend(simpleExtend, {b: 3, c: 4});
michael@0: 
michael@0:   do_check_true(simpleExtend.a === 1 && simpleExtend.b === 3 && simpleExtend.c === 4);
michael@0:   do_check_true(simpleExtendResult === simpleExtend);
michael@0: 
michael@0:   do_print("Cloning");
michael@0:   let cloneExtend = {a: 1, b: 2};
michael@0:   let cloned = Util.extend({}, cloneExtend);
michael@0: 
michael@0:   do_check_true(cloneExtend.a === cloned.a && cloneExtend.b === cloned.b);
michael@0:   do_check_true(cloneExtend !== cloned);
michael@0: 
michael@0:   do_print("Multiple extend");
michael@0:   let multiExtend1 = {a: 1, b: 2};
michael@0:   let multiExtend2 = {c: 3, d: 4};
michael@0:   let multiExtend3 = {b: 5, e: 6};
michael@0:   let multiExtend4 = {e: 7, a: 8};
michael@0:   let multiResult = Util.extend({}, multiExtend1, multiExtend2, multiExtend3, multiExtend4);
michael@0: 
michael@0:   do_check_true(multiResult.a === 8 && multiResult.b === 5 && multiResult.c === 3 && multiResult.d === 4 && multiResult.e === 7);
michael@0: }