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319 lines
12 KiB
319 lines
12 KiB
// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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function GenericToJSONChecks(Constructor, value, alternative) {
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var n1 = new Constructor(value);
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n1.valueOf = function () { return alternative; };
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assertEquals(alternative, n1.toJSON());
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var n2 = new Constructor(value);
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n2.valueOf = null;
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assertThrows(function () { n2.toJSON(); }, TypeError);
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var n3 = new Constructor(value);
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n3.valueOf = function () { return {}; };
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assertThrows(function () { n3.toJSON(); }, TypeError, 'result_not_primitive');
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var n4 = new Constructor(value);
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n4.valueOf = function () {
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assertEquals(0, arguments.length);
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assertEquals(this, n4);
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return null;
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};
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assertEquals(null, n4.toJSON());
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}
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// Number toJSON
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assertEquals(3, (3).toJSON());
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assertEquals(3, (3).toJSON(true));
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assertEquals(4, (new Number(4)).toJSON());
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GenericToJSONChecks(Number, 5, 6);
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// Boolean toJSON
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assertEquals(true, (true).toJSON());
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assertEquals(true, (true).toJSON(false));
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assertEquals(false, (false).toJSON());
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assertEquals(true, (new Boolean(true)).toJSON());
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GenericToJSONChecks(Boolean, true, false);
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GenericToJSONChecks(Boolean, false, true);
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// String toJSON
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assertEquals("flot", "flot".toJSON());
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assertEquals("flot", "flot".toJSON(3));
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assertEquals("tolf", (new String("tolf")).toJSON());
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GenericToJSONChecks(String, "x", "y");
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// Date toJSON
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assertEquals("1970-01-01T00:00:00.000Z", new Date(0).toJSON());
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assertEquals("1979-01-11T08:00:00.000Z", new Date("1979-01-11 08:00 GMT").toJSON());
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assertEquals("2005-05-05T05:05:05.000Z", new Date("2005-05-05 05:05:05 GMT").toJSON());
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var n1 = new Date(10000);
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n1.toISOString = function () { return "foo"; };
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assertEquals("foo", n1.toJSON());
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var n2 = new Date(10001);
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n2.toISOString = null;
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assertThrows(function () { n2.toJSON(); }, TypeError);
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var n3 = new Date(10002);
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n3.toISOString = function () { return {}; };
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assertThrows(function () { n3.toJSON(); }, TypeError, "result_not_primitive");
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var n4 = new Date(10003);
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n4.toISOString = function () {
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assertEquals(0, arguments.length);
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assertEquals(this, n4);
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return null;
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};
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assertEquals(null, n4.toJSON());
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assertTrue(Object.prototype === JSON.__proto__);
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assertEquals("[object JSON]", Object.prototype.toString.call(JSON));
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// DontEnum
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for (var p in this)
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assertFalse(p == "JSON");
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// Parse
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assertEquals({}, JSON.parse("{}"));
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assertEquals({42:37}, JSON.parse('{"42":37}'));
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assertEquals(null, JSON.parse("null"));
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assertEquals(true, JSON.parse("true"));
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assertEquals(false, JSON.parse("false"));
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assertEquals("foo", JSON.parse('"foo"'));
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assertEquals("f\no", JSON.parse('"f\\no"'));
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assertEquals("\b\f\n\r\t\"\u2028\/\\",
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JSON.parse('"\\b\\f\\n\\r\\t\\"\\u2028\\/\\\\"'));
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assertEquals([1.1], JSON.parse("[1.1]"));
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assertEquals([1], JSON.parse("[1.0]"));
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assertEquals(0, JSON.parse("0"));
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assertEquals(1, JSON.parse("1"));
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assertEquals(0.1, JSON.parse("0.1"));
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assertEquals(1.1, JSON.parse("1.1"));
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assertEquals(1.1, JSON.parse("1.100000"));
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assertEquals(1.111111, JSON.parse("1.111111"));
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assertEquals(-0, JSON.parse("-0"));
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assertEquals(-1, JSON.parse("-1"));
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assertEquals(-0.1, JSON.parse("-0.1"));
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assertEquals(-1.1, JSON.parse("-1.1"));
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assertEquals(-1.1, JSON.parse("-1.100000"));
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assertEquals(-1.111111, JSON.parse("-1.111111"));
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assertEquals(11, JSON.parse("1.1e1"));
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assertEquals(11, JSON.parse("1.1e+1"));
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assertEquals(0.11, JSON.parse("1.1e-1"));
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assertEquals(11, JSON.parse("1.1E1"));
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assertEquals(11, JSON.parse("1.1E+1"));
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assertEquals(0.11, JSON.parse("1.1E-1"));
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assertEquals([], JSON.parse("[]"));
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assertEquals([1], JSON.parse("[1]"));
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assertEquals([1, "2", true, null], JSON.parse('[1, "2", true, null]'));
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assertEquals("", JSON.parse('""'));
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assertEquals(["", "", -0, ""], JSON.parse('[ "" , "" , -0, ""]'));
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assertEquals("", JSON.parse('""'));
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function GetFilter(name) {
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function Filter(key, value) {
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return (key == name) ? undefined : value;
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}
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return Filter;
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}
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var pointJson = '{"x": 1, "y": 2}';
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assertEquals({'x': 1, 'y': 2}, JSON.parse(pointJson));
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assertEquals({'x': 1}, JSON.parse(pointJson, GetFilter('y')));
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assertEquals({'y': 2}, JSON.parse(pointJson, GetFilter('x')));
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assertEquals([1, 2, 3], JSON.parse("[1, 2, 3]"));
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assertEquals([1, undefined, 3], JSON.parse("[1, 2, 3]", GetFilter(1)));
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assertEquals([1, 2, undefined], JSON.parse("[1, 2, 3]", GetFilter(2)));
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function DoubleNumbers(key, value) {
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return (typeof value == 'number') ? 2 * value : value;
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}
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var deepObject = '{"a": {"b": 1, "c": 2}, "d": {"e": {"f": 3}}}';
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assertEquals({"a": {"b": 1, "c": 2}, "d": {"e": {"f": 3}}},
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JSON.parse(deepObject));
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assertEquals({"a": {"b": 2, "c": 4}, "d": {"e": {"f": 6}}},
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JSON.parse(deepObject, DoubleNumbers));
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function TestInvalid(str) {
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assertThrows(function () { JSON.parse(str); }, SyntaxError);
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}
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TestInvalid('abcdef');
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TestInvalid('isNaN()');
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TestInvalid('{"x": [1, 2, deepObject]}');
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TestInvalid('[1, [2, [deepObject], 3], 4]');
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TestInvalid('function () { return 0; }');
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TestInvalid("[1, 2");
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TestInvalid('{"x": 3');
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// JavaScript number literals not valid in JSON.
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TestInvalid('[01]');
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TestInvalid('[.1]');
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TestInvalid('[1.]');
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TestInvalid('[1.e1]');
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TestInvalid('[-.1]');
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TestInvalid('[-1.]');
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// Plain invalid number literals.
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TestInvalid('-');
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TestInvalid('--1');
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TestInvalid('-1e');
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TestInvalid('1e--1]');
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TestInvalid('1e+-1');
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TestInvalid('1e-+1');
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TestInvalid('1e++1');
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// JavaScript string literals not valid in JSON.
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TestInvalid("'single quote'"); // Valid JavaScript
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TestInvalid('"\\a invalid escape"');
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TestInvalid('"\\v invalid escape"'); // Valid JavaScript
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TestInvalid('"\\\' invalid escape"'); // Valid JavaScript
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TestInvalid('"\\x42 invalid escape"'); // Valid JavaScript
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TestInvalid('"\\u202 invalid escape"');
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TestInvalid('"\\012 invalid escape"');
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TestInvalid('"Unterminated string');
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TestInvalid('"Unterminated string\\"');
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TestInvalid('"Unterminated string\\\\\\"');
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// JavaScript RegExp literals not valid in JSON.
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TestInvalid('/true/');
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// Test bad JSON that would be good JavaScript (ES5).
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TestInvalid("{true:42}");
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TestInvalid("{false:42}");
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TestInvalid("{null:42}");
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TestInvalid("{'foo':42}");
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TestInvalid("{42:42}");
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TestInvalid("{0:42}");
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TestInvalid("{-1:42}");
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// Test for trailing garbage detection.
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TestInvalid('42 px');
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TestInvalid('42 .2');
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TestInvalid('42 2');
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TestInvalid('42 e1');
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TestInvalid('"42" ""');
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TestInvalid('"42" ""');
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TestInvalid('"" ""');
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TestInvalid('true ""');
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TestInvalid('false ""');
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TestInvalid('null ""');
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TestInvalid('null ""');
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TestInvalid('[] ""');
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TestInvalid('[true] ""');
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TestInvalid('{} ""');
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TestInvalid('{"x":true} ""');
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TestInvalid('"Garbage""After string"');
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// Stringify
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assertEquals("true", JSON.stringify(true));
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assertEquals("false", JSON.stringify(false));
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assertEquals("null", JSON.stringify(null));
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assertEquals("false", JSON.stringify({toJSON: function () { return false; }}));
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assertEquals("4", JSON.stringify(4));
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assertEquals('"foo"', JSON.stringify("foo"));
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assertEquals("null", JSON.stringify(Infinity));
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assertEquals("null", JSON.stringify(-Infinity));
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assertEquals("null", JSON.stringify(NaN));
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assertEquals("4", JSON.stringify(new Number(4)));
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assertEquals('"bar"', JSON.stringify(new String("bar")));
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assertEquals('"foo\\u0000bar"', JSON.stringify("foo\0bar"));
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assertEquals('"f\\"o\'o\\\\b\\ba\\fr\\nb\\ra\\tz"',
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JSON.stringify("f\"o\'o\\b\ba\fr\nb\ra\tz"));
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assertEquals("[1,2,3]", JSON.stringify([1, 2, 3]));
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assertEquals("[\n 1,\n 2,\n 3\n]", JSON.stringify([1, 2, 3], null, 1));
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assertEquals("[\n 1,\n 2,\n 3\n]", JSON.stringify([1, 2, 3], null, 2));
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assertEquals("[\n 1,\n 2,\n 3\n]",
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JSON.stringify([1, 2, 3], null, new Number(2)));
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assertEquals("[\n^1,\n^2,\n^3\n]", JSON.stringify([1, 2, 3], null, "^"));
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assertEquals("[\n^1,\n^2,\n^3\n]",
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JSON.stringify([1, 2, 3], null, new String("^")));
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assertEquals("[\n 1,\n 2,\n [\n 3,\n [\n 4\n ],\n 5\n ],\n 6,\n 7\n]",
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JSON.stringify([1, 2, [3, [4], 5], 6, 7], null, 1));
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assertEquals("[]", JSON.stringify([], null, 1));
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assertEquals("[1,2,[3,[4],5],6,7]",
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JSON.stringify([1, 2, [3, [4], 5], 6, 7], null));
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assertEquals("[2,4,[6,[8],10],12,14]",
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JSON.stringify([1, 2, [3, [4], 5], 6, 7], DoubleNumbers));
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var circular = [1, 2, 3];
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circular[2] = circular;
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assertThrows(function () { JSON.stringify(circular); }, TypeError);
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var singleton = [];
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var multiOccurrence = [singleton, singleton, singleton];
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assertEquals("[[],[],[]]", JSON.stringify(multiOccurrence));
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assertEquals('{"x":5,"y":6}', JSON.stringify({x:5,y:6}));
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assertEquals('{"x":5}', JSON.stringify({x:5,y:6}, ['x']));
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assertEquals('{\n "a": "b",\n "c": "d"\n}',
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JSON.stringify({a:"b",c:"d"}, null, 1));
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assertEquals('{"y":6,"x":5}', JSON.stringify({x:5,y:6}, ['y', 'x']));
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// The gap is capped at ten characters if specified as string.
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assertEquals('{\n "a": "b",\n "c": "d"\n}',
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JSON.stringify({a:"b",c:"d"}, null,
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" /*characters after 10th*/"));
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//The gap is capped at ten characters if specified as number.
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assertEquals('{\n "a": "b",\n "c": "d"\n}',
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JSON.stringify({a:"b",c:"d"}, null, 15));
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// Replaced wrapped primitives are unwrapped.
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function newx(k, v) { return (k == "x") ? new v(42) : v; }
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assertEquals('{"x":"42"}', JSON.stringify({x: String}, newx));
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assertEquals('{"x":42}', JSON.stringify({x: Number}, newx));
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assertEquals('{"x":true}', JSON.stringify({x: Boolean}, newx));
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assertEquals(undefined, JSON.stringify(undefined));
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assertEquals(undefined, JSON.stringify(function () { }));
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// Arrays with missing, undefined or function elements have those elements
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// replaced by null.
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assertEquals("[null,null,null]",
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JSON.stringify([undefined,,function(){}]));
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// Objects with undefined or function properties (including replaced properties)
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// have those properties ignored.
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assertEquals('{}',
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JSON.stringify({a: undefined, b: function(){}, c: 42, d: 42},
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function(k, v) { if (k == "c") return undefined;
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if (k == "d") return function(){};
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return v; }));
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TestInvalid('1); throw "foo"; (1');
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var x = 0;
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eval("(1); x++; (1)");
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TestInvalid('1); x++; (1');
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// Test string conversion of argument.
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var o = { toString: function() { return "42"; } };
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assertEquals(42, JSON.parse(o));
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