Added validating JSON parser mode to parser.

test/mjsunit/json.js

Index: test/mjsunit/json.js
diff --git a/test/mjsunit/json.js b/test/mjsunit/json.js
index 35e16340ce10543695286dd36326d7a22490540b..5835a00c86fbab9fa3ad7866b1da726d28d56902 100644
--- a/test/mjsunit/json.js
+++ b/test/mjsunit/json.js
@@ -93,20 +93,46 @@ for (var p in this)
   assertFalse(p == "JSON");
 
 // Parse
-
 assertEquals({}, JSON.parse("{}"));
+assertEquals({42:37}, JSON.parse('{"42":37}'));
 assertEquals(null, JSON.parse("null"));
 assertEquals(true, JSON.parse("true"));
 assertEquals(false, JSON.parse("false"));
 assertEquals("foo", JSON.parse('"foo"'));
 assertEquals("f\no", JSON.parse('"f\\no"'));
+assertEquals("\b\f\n\r\t\"\u2028\/\\",
+             JSON.parse('"\\b\\f\\n\\r\\t\\"\\u2028\\/\\\\"'));
+assertEquals([1.1], JSON.parse("[1.1]"));
+assertEquals([1], JSON.parse("[1.0]"));
+
+assertEquals(0, JSON.parse("0"));
+assertEquals(1, JSON.parse("1"));
+assertEquals(0.1, JSON.parse("0.1"));
 assertEquals(1.1, JSON.parse("1.1"));
-assertEquals(1, JSON.parse("1.0"));
-assertEquals(0.0000000003, JSON.parse("3e-10"));
+assertEquals(1.1, JSON.parse("1.100000"));
+assertEquals(1.111111, JSON.parse("1.111111"));
+assertEquals(-0, JSON.parse("-0"));
+assertEquals(-1, JSON.parse("-1"));
+assertEquals(-0.1, JSON.parse("-0.1"));
+assertEquals(-1.1, JSON.parse("-1.1"));
+assertEquals(-1.1, JSON.parse("-1.100000"));
+assertEquals(-1.111111, JSON.parse("-1.111111"));
+assertEquals(11, JSON.parse("1.1e1"));
+assertEquals(11, JSON.parse("1.1e+1"));
+assertEquals(0.11, JSON.parse("1.1e-1"));
+assertEquals(11, JSON.parse("1.1E1"));
+assertEquals(11, JSON.parse("1.1E+1"));
+assertEquals(0.11, JSON.parse("1.1E-1"));
+
 assertEquals([], JSON.parse("[]"));
 assertEquals([1], JSON.parse("[1]"));
 assertEquals([1, "2", true, null], JSON.parse('[1, "2", true, null]'));
 
+assertEquals("", JSON.parse('""'));
+assertEquals(["", "", -0, ""], JSON.parse('[    ""  ,    ""  ,   -0,    ""]'));
+assertEquals("", JSON.parse('""'));
+
+
 function GetFilter(name) {
   function Filter(key, value) {
     return (key == name) ? undefined : value;
@@ -145,6 +171,56 @@ TestInvalid('function () { return 0; }');
 TestInvalid("[1, 2");
 TestInvalid('{"x": 3');
 
+// JavaScript number literals not valid in JSON.
+TestInvalid('[01]');
+TestInvalid('[.1]');
+TestInvalid('[1.]');
+TestInvalid('[1.e1]');
+TestInvalid('[-.1]');
+TestInvalid('[-1.]');
+
+// Plain invalid number literals.
+TestInvalid('-');
+TestInvalid('--1');
+TestInvalid('-1e');
+TestInvalid('1e--1]');
+TestInvalid('1e+-1');
+TestInvalid('1e-+1');
+TestInvalid('1e++1');
+
+// JavaScript string literals not valid in JSON.
+TestInvalid("'single quote'");
+TestInvalid('"\\a invalid escape"');
+TestInvalid('"\\x42 invalid escape"');
+TestInvalid('"\\u202 invalid escape"');
+TestInvalid('"\\012 invalid escape"');
+
+// Test bad JSON that would be good JavaScript (ES5).
+
+TestInvalid("{true:42}");
+TestInvalid("{false:42}");
+TestInvalid("{null:42}");
+TestInvalid("{'foo':42}");
+TestInvalid("{42:42}");
+TestInvalid("{0:42}");
+TestInvalid("{-1:42}");
+
+// Test for trailing garbage detection.
+
+TestInvalid('42 px');
+TestInvalid('42 .2');
+TestInvalid('"42" ""');
+TestInvalid('"42" ""');
+TestInvalid('"" ""');
+TestInvalid('true ""');
+TestInvalid('false ""');
+TestInvalid('null ""');
+TestInvalid('null ""');
+TestInvalid('[] ""');
+TestInvalid('[true] ""');
+TestInvalid('{} ""');
+TestInvalid('{"x":true} ""');
+
 // Stringify
 
 assertEquals("true", JSON.stringify(true));