// Stringify
-assertEquals("true", JSON.stringify(true));
-assertEquals("false", JSON.stringify(false));
-assertEquals("null", JSON.stringify(null));
-assertEquals("false", JSON.stringify({toJSON: function () { return false; }}));
-assertEquals("4", JSON.stringify(4));
-assertEquals('"foo"', JSON.stringify("foo"));
-assertEquals("null", JSON.stringify(Infinity));
-assertEquals("null", JSON.stringify(-Infinity));
-assertEquals("null", JSON.stringify(NaN));
-assertEquals("4", JSON.stringify(new Number(4)));
-assertEquals('"bar"', JSON.stringify(new String("bar")));
-
-assertEquals('"foo\\u0000bar"', JSON.stringify("foo\0bar"));
-assertEquals('"f\\"o\'o\\\\b\\ba\\fr\\nb\\ra\\tz"',
- JSON.stringify("f\"o\'o\\b\ba\fr\nb\ra\tz"));
-
-assertEquals("[1,2,3]", JSON.stringify([1, 2, 3]));
+function TestStringify(expected, input) {
+ assertEquals(expected, JSON.stringify(input));
+ assertEquals(expected, JSON.stringify(input, null, 0));
+}
+
+TestStringify("true", true);
+TestStringify("false", false);
+TestStringify("null", null);
+TestStringify("false", {toJSON: function () { return false; }});
+TestStringify("4", 4);
+TestStringify('"foo"', "foo");
+TestStringify("null", Infinity);
+TestStringify("null", -Infinity);
+TestStringify("null", NaN);
+TestStringify("4", new Number(4));
+TestStringify('"bar"', new String("bar"));
+
+TestStringify('"foo\\u0000bar"', "foo\0bar");
+TestStringify('"f\\"o\'o\\\\b\\ba\\fr\\nb\\ra\\tz"',
+ "f\"o\'o\\b\ba\fr\nb\ra\tz");
+
+TestStringify("[1,2,3]", [1, 2, 3]);
assertEquals("[\n 1,\n 2,\n 3\n]", JSON.stringify([1, 2, 3], null, 1));
assertEquals("[\n 1,\n 2,\n 3\n]", JSON.stringify([1, 2, 3], null, 2));
assertEquals("[\n 1,\n 2,\n 3\n]",
JSON.stringify([1, 2, [3, [4], 5], 6, 7], null));
assertEquals("[2,4,[6,[8],10],12,14]",
JSON.stringify([1, 2, [3, [4], 5], 6, 7], DoubleNumbers));
-assertEquals('["a","ab","abc"]', JSON.stringify(["a","ab","abc"]));
-assertEquals('{"a":1,"c":true}',
- JSON.stringify({ a : 1,
- b : function() { 1 },
- c : true,
- d : function() { 2 } }));
-assertEquals('[1,null,true,null]',
- JSON.stringify([1, function() { 1 }, true, function() { 2 }]));
-assertEquals('"toJSON 123"',
- JSON.stringify({ toJSON : function() { return 'toJSON 123'; } }));
-assertEquals('{"a":321}',
- JSON.stringify({ a : { toJSON : function() { return 321; } } }));
+TestStringify('["a","ab","abc"]', ["a","ab","abc"]);
+TestStringify('{"a":1,"c":true}', { a : 1,
+ b : function() { 1 },
+ c : true,
+ d : function() { 2 } });
+TestStringify('[1,null,true,null]',
+ [1, function() { 1 }, true, function() { 2 }]);
+TestStringify('"toJSON 123"',
+ { toJSON : function() { return 'toJSON 123'; } });
+TestStringify('{"a":321}',
+ { a : { toJSON : function() { return 321; } } });
var counter = 0;
assertEquals('{"getter":123}',
JSON.stringify({ get getter() { counter++; return 123; } }));
assertEquals(1, counter);
-assertEquals('{"a":"abc","b":"\u1234bc"}',
- JSON.stringify({ a : "abc", b : "\u1234bc" }));
+assertEquals('{"getter":123}',
+ JSON.stringify({ get getter() { counter++; return 123; } },
+ null,
+ 0));
+assertEquals(2, counter);
+
+TestStringify('{"a":"abc","b":"\u1234bc"}',
+ { a : "abc", b : "\u1234bc" });
var a = { a : 1, b : 2 };
delete a.a;
-assertEquals('{"b":2}', JSON.stringify(a));
+TestStringify('{"b":2}', a);
var b = {};
b.__proto__ = { toJSON : function() { return 321;} };
-assertEquals("321", JSON.stringify(b));
+TestStringify("321", b);
var array = [""];
var expected = '""';
expected = '"",' + expected;
}
expected = '[' + expected + ']';
-assertEquals(expected, JSON.stringify(array));
+TestStringify(expected, array);
var circular = [1, 2, 3];
circular[2] = circular;
assertThrows(function () { JSON.stringify(circular); }, TypeError);
+assertThrows(function () { JSON.stringify(circular, null, 0); }, TypeError);
var singleton = [];
var multiOccurrence = [singleton, singleton, singleton];
-assertEquals("[[],[],[]]", JSON.stringify(multiOccurrence));
+TestStringify("[[],[],[]]", multiOccurrence);
-assertEquals('{"x":5,"y":6}', JSON.stringify({x:5,y:6}));
+TestStringify('{"x":5,"y":6}', {x:5,y:6});
assertEquals('{"x":5}', JSON.stringify({x:5,y:6}, ['x']));
assertEquals('{\n "a": "b",\n "c": "d"\n}',
JSON.stringify({a:"b",c:"d"}, null, 1));
var checker = {};
var array = [checker];
checker.toJSON = function(key) { return 1 + key; };
-assertEquals('["10"]', JSON.stringify(array));
+TestStringify('["10"]', array);
// The gap is capped at ten characters if specified as string.
assertEquals('{\n "a": "b",\n "c": "d"\n}',
assertEquals('{"x":42}', JSON.stringify({x: Number}, newx));
assertEquals('{"x":true}', JSON.stringify({x: Boolean}, newx));
-assertEquals(undefined, JSON.stringify(undefined));
-assertEquals(undefined, JSON.stringify(function () { }));
+TestStringify(undefined, undefined);
+TestStringify(undefined, function () { });
// Arrays with missing, undefined or function elements have those elements
// replaced by null.
-assertEquals("[null,null,null]",
- JSON.stringify([undefined,,function(){}]));
+TestStringify("[null,null,null]", [undefined,,function(){}]);
// Objects with undefined or function properties (including replaced properties)
// have those properties ignored.
var reJSON = /Is callable/;
reJSON.toJSON = function() { return "has toJSON"; };
-assertEquals(
- '[37,null,1,"foo","37","true",null,"has toJSON",{},"has toJSON"]',
- JSON.stringify([num37, numFoo, numTrue,
- strFoo, str37, strTrue,
- func, funcJSON, re, reJSON]));
+TestStringify('[37,null,1,"foo","37","true",null,"has toJSON",{},"has toJSON"]',
+ [num37, numFoo, numTrue,
+ strFoo, str37, strTrue,
+ func, funcJSON, re, reJSON]);
var oddball = Object(42);
oddball.__proto__ = { __proto__: null, toString: function() { return true; } };
-assertEquals('1', JSON.stringify(oddball));
+TestStringify('1', oddball);
var getCount = 0;
var callCount = 0;
return 42; }; } };
// RegExps are not callable, so they are stringified as objects.
-assertEquals('{}', JSON.stringify(/regexp/));
-assertEquals('42', JSON.stringify(counter));
-assertEquals(1, getCount);
-assertEquals(1, callCount);
+TestStringify('{}', /regexp/);
+TestStringify('42', counter);
+assertEquals(2, getCount);
+assertEquals(2, callCount);
var oddball2 = Object(42);
var oddball3 = Object("foo");
valueOf: function() { return true; } };
oddball2.__proto__ = { __proto__: null,
toJSON: function () { return oddball3; } }
-assertEquals('"true"', JSON.stringify(oddball2));
+TestStringify('"true"', oddball2);
var falseNum = Object("37");
falseNum.__proto__ = Number.prototype;
falseNum.toString = function() { return 42; };
-assertEquals('"42"', JSON.stringify(falseNum));
+TestStringify('"42"', falseNum);
// Parse an object value as __proto__.
var o1 = JSON.parse('{"__proto__":[]}');
assertTrue(Object.prototype.isPrototypeOf(o2));
var json = '{"stuff before slash\\\\stuff after slash":"whatever"}';
-assertEquals(json, JSON.stringify(JSON.parse(json)));
+TestStringify(json, JSON.parse(json));
// Test JSON.stringify on the global object.
var a = 12345;
assertTrue(JSON.stringify(this).indexOf('"a":12345') > 0);
+assertTrue(JSON.stringify(this, null, 0).indexOf('"a":12345') > 0);
// Test JSON.stringify of array in dictionary mode.
+function TestStringify(expected, input) {
+ assertEquals(expected, JSON.stringify(input));
+ assertEquals(expected, JSON.stringify(input, null, 0));
+}
+
var array_1 = [];
var array_2 = [];
array_1[100000] = 1;
}
expected_1 = '[' + nulls + '1]';
expected_2 = '[' + nulls + 'null]';
-assertEquals(expected_1, JSON.stringify(array_1));
-assertEquals(expected_2, JSON.stringify(array_2));
+TestStringify(expected_1, array_1);
+TestStringify(expected_2, array_2);
// Test JSValue with custom prototype.
var num_wrapper = Object(42);
num_wrapper.__proto__ = { __proto__: null,
toString: function() { return true; } };
-assertEquals('1', JSON.stringify(num_wrapper));
+TestStringify('1', num_wrapper);
var str_wrapper = Object('2');
str_wrapper.__proto__ = { __proto__: null,
toString: function() { return true; } };
-assertEquals('"true"', JSON.stringify(str_wrapper));
+TestStringify('"true"', str_wrapper);
var bool_wrapper = Object(false);
bool_wrapper.__proto__ = { __proto__: null,
toString: function() { return true; } };
// Note that toString function is not evaluated here!
-assertEquals('false', JSON.stringify(bool_wrapper));
+TestStringify('false', bool_wrapper);
// Test getters.
var counter = 0;
counter++;
return 123;
} };
-assertEquals('{"getter":123}', JSON.stringify(getter_obj));
-assertEquals(1, counter);
+TestStringify('{"getter":123}', getter_obj);
+assertEquals(2, counter);
// Test toJSON function.
var tojson_obj = { toJSON: function() {
return [1, 2];
},
a: 1};
-assertEquals('[1,2]', JSON.stringify(tojson_obj));
-assertEquals(2, counter);
+TestStringify('[1,2]', tojson_obj);
+assertEquals(4, counter);
// Test that we don't recursively look for the toJSON function.
var tojson_proto_obj = { a: 'fail' };
counter++;
return tojson_obj;
} };
-assertEquals('{"a":1}', JSON.stringify(tojson_proto_obj));
+TestStringify('{"a":1}', tojson_proto_obj);
// Test toJSON produced by a getter.
var tojson_via_getter = { get toJSON() {
};
},
a: 1 };
-assertEquals('321', JSON.stringify(tojson_via_getter));
+TestStringify('321', tojson_via_getter);
// Test toJSON with key.
tojson_obj = { toJSON: function(key) { return key + key; } };
var tojson_with_key_1 = { a: tojson_obj, b: tojson_obj };
-assertEquals('{"a":"aa","b":"bb"}', JSON.stringify(tojson_with_key_1));
+TestStringify('{"a":"aa","b":"bb"}', tojson_with_key_1);
var tojson_with_key_2 = [ tojson_obj, tojson_obj ];
-assertEquals('["00","11"]', JSON.stringify(tojson_with_key_2));
+TestStringify('["00","11"]', tojson_with_key_2);
// Test toJSON with exception.
var tojson_ex = { toJSON: function(key) { throw "123" } };
assertThrows(function() { JSON.stringify(tojson_ex); });
+assertThrows(function() { JSON.stringify(tojson_ex, null, 0); });
// Test toJSON with access to this.
var obj = { toJSON: function(key) { return this.a + key; }, a: "x" };
-assertEquals('{"y":"xy"}', JSON.stringify({y: obj}));
+TestStringify('{"y":"xy"}', {y: obj});
// Test holes in arrays.
var fast_smi = [1, 2, 3, 4];
fast_smi.__proto__ = [7, 7, 7, 7];
delete fast_smi[2];
assertTrue(%HasFastSmiElements(fast_smi));
-assertEquals("[1,2,7,4]", JSON.stringify(fast_smi));
+TestStringify("[1,2,7,4]", fast_smi);
var fast_double = [1.1, 2, 3, 4];
fast_double.__proto__ = [7, 7, 7, 7];
delete fast_double[2];
assertTrue(%HasFastDoubleElements(fast_double));
-assertEquals("[1.1,2,7,4]", JSON.stringify(fast_double));
+TestStringify("[1.1,2,7,4]", fast_double);
var fast_obj = [1, 2, {}, {}];
fast_obj.__proto__ = [7, 7, 7, 7];
delete fast_obj[2];
assertTrue(%HasFastObjectElements(fast_obj));
-assertEquals("[1,2,7,{}]", JSON.stringify(fast_obj));
+TestStringify("[1,2,7,{}]", fast_obj);
var getter_side_effect = { a: 1,
get b() {
assertEquals('{"a":1,"b":2,"d":4}', JSON.stringify(getter_side_effect));
assertEquals('{"b":2,"d":4,"e":5}', JSON.stringify(getter_side_effect));
+getter_side_effect = { a: 1,
+ get b() {
+ delete this.a;
+ delete this.c;
+ this.e = 5;
+ return 2;
+ },
+ c: 3,
+ d: 4 };
+assertEquals('{"a":1,"b":2,"d":4}',
+ JSON.stringify(getter_side_effect, null, 0));
+assertEquals('{"b":2,"d":4,"e":5}',
+ JSON.stringify(getter_side_effect, null, 0));
+
var non_enum = {};
non_enum.a = 1;
Object.defineProperty(non_enum, "b", { value: 2, enumerable: false });
non_enum.c = 3;
-assertEquals('{"a":1,"c":3}', JSON.stringify(non_enum));
+TestStringify('{"a":1,"c":3}', non_enum);