function assertStringify(v, expect) { assertEq(JSON.stringify(v), expect); } assertStringify({}, "{}"); assertStringify([], "[]"); assertStringify({"foo":"bar"}, '{"foo":"bar"}'); assertStringify({"null":null}, '{"null":null}'); assertStringify({"five":5}, '{"five":5}'); assertStringify({"five":5, "six":6}, '{"five":5,"six":6}'); assertStringify({"x":{"y":"z"}}, '{"x":{"y":"z"}}'); assertStringify({"w":{"x":{"y":"z"}}}, '{"w":{"x":{"y":"z"}}}'); assertStringify([1,2,3], '[1,2,3]'); assertStringify({"w":{"x":{"y":[1,2,3]}}}, '{"w":{"x":{"y":[1,2,3]}}}'); assertStringify({"false":false}, '{"false":false}'); assertStringify({"true":true}, '{"true":true}'); assertStringify({"child has two members": {"this":"one", 2:"and this one"}}, '{"child has two members":{"2":"and this one","this":"one"}}'); assertStringify({"x":{"a":"b","c":{"y":"z"},"f":"g"}}, '{"x":{"a":"b","c":{"y":"z"},"f":"g"}}'); assertStringify({"x":[1,{"y":"z"},3]}, '{"x":[1,{"y":"z"},3]}'); assertStringify([new String("hmm")], '["hmm"]'); assertStringify([new Boolean(true)], '[true]'); assertStringify([new Number(42)], '[42]'); assertStringify([new Date(Date.UTC(1978, 8, 13, 12, 24, 34, 23))], '["1978-09-13T12:24:34.023Z"]'); assertStringify([1,,3], '[1,null,3]'); assertStringify({"mm\"mm":"hmm"}, '{"mm\\\"mm":"hmm"}'); assertStringify({"mm\"mm\"mm":"hmm"}, '{"mm\\\"mm\\\"mm":"hmm"}'); assertStringify({'"':"hmm"}, '{"\\\"":"hmm"}'); assertStringify({'\\':"hmm"}, '{"\\\\":"hmm"}'); assertStringify({'mmm\\mmm':"hmm"}, '{"mmm\\\\mmm":"hmm"}'); assertStringify({'mmm\\mmm\\mmm':"hmm"}, '{"mmm\\\\mmm\\\\mmm":"hmm"}'); assertStringify({"mm\u000bmm":"hmm"}, '{"mm\\u000bmm":"hmm"}'); assertStringify({"mm\u0000mm":"hmm"}, '{"mm\\u0000mm":"hmm"}'); var x = {"free":"variable"}; assertStringify(x, '{"free":"variable"}'); assertStringify({"y":x}, '{"y":{"free":"variable"}}'); // array prop assertStringify({ a: [1,2,3] }, '{"a":[1,2,3]}'); assertStringify({"y": { foo: function(hmm) { return hmm; } } }, '{"y":{}}'); // test toJSON var hmm = { toJSON: function() { return {"foo":"bar"} } }; assertStringify({"hmm":hmm}, '{"hmm":{"foo":"bar"}}'); assertStringify(hmm, '{"foo":"bar"}'); // on the root // toJSON on prototype var Y = function() { this.not = "there?"; this.d = "e"; }; Y.prototype = { not: "there?", toJSON: function() { return {"foo":"bar"}} }; var y = new Y(); assertStringify(y.toJSON(), '{"foo":"bar"}'); assertStringify(y, '{"foo":"bar"}'); // return undefined from toJSON assertStringify({"hmm": { toJSON: function() { return; } } }, '{}'); // array with named prop var x = new Array(); x[0] = 1; x.foo = "bar"; assertStringify(x, '[1]'); // prototype var X = function() { this.a = "b" }; X.prototype = { c: "d" }; assertStringify(new X(), '{"a":"b"}'); /******************************************************************************/ if (typeof reportCompare === "function") reportCompare(true, true); print("Tests complete");