Allow passing null to JsonArray.Add()
[mono.git] / mcs / class / System.Json / Test / System.Json / JsonValueTest.cs
index 2459c1fc3ad0f27478d902ffaccc6f2ec3f0d371..baff3cc32b181579cbcbb199970fde60290d7cb4 100644 (file)
@@ -11,6 +11,8 @@ using System;
 using System.IO;
 using System.Text;
 using System.Json;
+using System.Globalization;
+using System.Threading;
 
 namespace MonoTests.System
 {
@@ -24,6 +26,14 @@ namespace MonoTests.System
                        Assert.AreEqual (1, j.Count, "itemcount");
                        Assert.AreEqual (JsonType.String, j ["a"].JsonType, "type");
                        Assert.AreEqual ("b", (string) j ["a"], "value");
+
+                       JsonValue.Parse ("[{ \"a\": \"b\",}]");
+               }
+
+               [Test]
+               public void LoadWithTrailingComma2 ()
+               {
+                       JsonValue.Parse ("[{ \"a\": \"b\",}]");
                }
 
                // Test that we correctly serialize JsonArray with null elements.
@@ -34,6 +44,255 @@ namespace MonoTests.System
                        Assert.AreEqual (JsonType.Array, j.JsonType, "type");
                        var str = j.ToString ();
                        Assert.AreEqual (str, "[1, 2, 3, null]");
+                       ((JsonArray) j).Add (null);
+                       str = j.ToString ();
+                       Assert.AreEqual (str, "[1, 2, 3, null, null]");
+               }
+
+               // Test that we correctly serialize JsonObject with null elements.
+               [Test]
+               public void ToStringOnJsonObjectWithNulls () {
+                       var j = JsonValue.Load (new StringReader ("{\"a\":null,\"b\":2}"));
+                       Assert.AreEqual (2, j.Count, "itemcount");
+                       Assert.AreEqual (JsonType.Object, j.JsonType, "type");
+                       var str = j.ToString ();
+                       Assert.AreEqual (str, "{\"a\": null, \"b\": 2}");
+               }
+
+               [Test]
+               public void JsonObjectOrder () {
+                       var obj = new JsonObject ();
+                       obj["a"] = 1;
+                       obj["c"] = 3;
+                       obj["b"] = 2;
+                       var str = obj.ToString ();
+                       Assert.AreEqual (str, "{\"a\": 1, \"b\": 2, \"c\": 3}");
+               }
+
+               [Test]
+               public void QuoteEscapeBug_20869 () 
+               {
+                       Assert.AreEqual ((new JsonPrimitive ("\"\"")).ToString (), "\"\\\"\\\"\"");
+               }
+
+               void ExpectError (string s)
+               {
+                       try {
+                               JsonValue.Parse (s);
+                               Assert.Fail ("Expected ArgumentException for `" + s + "'");
+                       } catch (ArgumentException) {
+                       }
+               }
+
+               // Test whether an exception is thrown for invalid JSON
+               [Test]
+               public void CheckErrors () 
+               {
+                       ExpectError (@"-");
+                       ExpectError (@"- ");
+                       ExpectError (@"1.");
+                       ExpectError (@"1. ");
+                       ExpectError (@"1e+");
+                       ExpectError (@"1 2");
+                       ExpectError (@"077");
+
+                       ExpectError (@"[1,]");
+
+                       //ExpectError (@"{""a"":1,}"); // Not valid JSON, allowed anyway
+               }
+
+               // Parse a json string and compare to the expected value
+               void CheckDouble (double expected, string json)
+               {
+                       double jvalue = (double) JsonValue.Parse (json);
+                       Assert.AreEqual (expected, jvalue);
+               }
+
+               // Convert a number to json and parse the string, then compare the result to the original value
+               void CheckDouble (double number)
+               {
+                       double jvalue = (double) JsonValue.Parse (new JsonPrimitive (number).ToString ());
+                       Assert.AreEqual (number, jvalue); // should be exactly the same
+               }
+
+               [Test]
+               public void CheckIntegers ()
+               {
+                       Assert.AreEqual (sbyte.MinValue, (sbyte) JsonValue.Parse (new JsonPrimitive (sbyte.MinValue).ToString ()));
+                       Assert.AreEqual (sbyte.MaxValue, (sbyte) JsonValue.Parse (new JsonPrimitive (sbyte.MaxValue).ToString ()));
+                       Assert.AreEqual (byte.MinValue, (byte) JsonValue.Parse (new JsonPrimitive (byte.MinValue).ToString ()));
+                       Assert.AreEqual (byte.MaxValue, (byte) JsonValue.Parse (new JsonPrimitive (byte.MaxValue).ToString ()));
+
+                       Assert.AreEqual (short.MinValue, (short) JsonValue.Parse (new JsonPrimitive (short.MinValue).ToString ()));
+                       Assert.AreEqual (short.MaxValue, (short) JsonValue.Parse (new JsonPrimitive (short.MaxValue).ToString ()));
+                       Assert.AreEqual (ushort.MinValue, (ushort) JsonValue.Parse (new JsonPrimitive (ushort.MinValue).ToString ()));
+                       Assert.AreEqual (ushort.MaxValue, (ushort) JsonValue.Parse (new JsonPrimitive (ushort.MaxValue).ToString ()));
+
+                       Assert.AreEqual (int.MinValue, (int) JsonValue.Parse (new JsonPrimitive (int.MinValue).ToString ()));
+                       Assert.AreEqual (int.MaxValue, (int) JsonValue.Parse (new JsonPrimitive (int.MaxValue).ToString ()));
+                       Assert.AreEqual (uint.MinValue, (uint) JsonValue.Parse (new JsonPrimitive (uint.MinValue).ToString ()));
+                       Assert.AreEqual (uint.MaxValue, (uint) JsonValue.Parse (new JsonPrimitive (uint.MaxValue).ToString ()));
+
+                       Assert.AreEqual (long.MinValue, (long) JsonValue.Parse (new JsonPrimitive (long.MinValue).ToString ()));
+                       Assert.AreEqual (long.MaxValue, (long) JsonValue.Parse (new JsonPrimitive (long.MaxValue).ToString ()));
+                       Assert.AreEqual (ulong.MinValue, (ulong) JsonValue.Parse (new JsonPrimitive (ulong.MinValue).ToString ()));
+                       Assert.AreEqual (ulong.MaxValue, (ulong) JsonValue.Parse (new JsonPrimitive (ulong.MaxValue).ToString ()));
+               }
+
+               [Test]
+               public void CheckNumbers () 
+               {
+                       CheckDouble (0, "0");
+                       CheckDouble (0, "-0");
+                       CheckDouble (0, "0.00");
+                       CheckDouble (0, "-0.00");
+                       CheckDouble (1, "1");
+                       CheckDouble (1.1, "1.1");
+                       CheckDouble (-1, "-1");
+                       CheckDouble (-1.1, "-1.1");
+                       CheckDouble (1e-10, "1e-10");
+                       CheckDouble (1e+10, "1e+10");
+                       CheckDouble (1e-30, "1e-30");
+                       CheckDouble (1e+30, "1e+30");
+
+                       CheckDouble (1, "\"1\"");
+                       CheckDouble (1.1, "\"1.1\"");
+                       CheckDouble (-1, "\"-1\"");
+                       CheckDouble (-1.1, "\"-1.1\"");
+
+                       CheckDouble (double.NaN, "\"NaN\"");
+                       CheckDouble (double.PositiveInfinity, "\"Infinity\"");
+                       CheckDouble (double.NegativeInfinity, "\"-Infinity\"");
+
+                       ExpectError ("NaN");
+                       ExpectError ("Infinity");
+                       ExpectError ("-Infinity");
+
+                       Assert.AreEqual ("1.1", new JsonPrimitive (1.1).ToString ());
+                       Assert.AreEqual ("-1.1", new JsonPrimitive (-1.1).ToString ());
+                       Assert.AreEqual ("1E-20", new JsonPrimitive (1e-20).ToString ());
+                       Assert.AreEqual ("1E+20", new JsonPrimitive (1e+20).ToString ());
+                       Assert.AreEqual ("1E-30", new JsonPrimitive (1e-30).ToString ());
+                       Assert.AreEqual ("1E+30", new JsonPrimitive (1e+30).ToString ());
+                       Assert.AreEqual ("\"NaN\"", new JsonPrimitive (double.NaN).ToString ());
+                       Assert.AreEqual ("\"Infinity\"", new JsonPrimitive (double.PositiveInfinity).ToString ());
+                       Assert.AreEqual ("\"-Infinity\"", new JsonPrimitive (double.NegativeInfinity).ToString ());
+
+                       Assert.AreEqual ("1E-30", JsonValue.Parse ("1e-30").ToString ());
+                       Assert.AreEqual ("1E+30", JsonValue.Parse ("1e+30").ToString ());
+
+                       CheckDouble (1);
+                       CheckDouble (1.1);
+                       CheckDouble (1.25);
+                       CheckDouble (-1);
+                       CheckDouble (-1.1);
+                       CheckDouble (-1.25);
+                       CheckDouble (1e-20);
+                       CheckDouble (1e+20);
+                       CheckDouble (1e-30);
+                       CheckDouble (1e+30);
+                       CheckDouble (3.1415926535897932384626433);
+                       CheckDouble (3.1415926535897932384626433e-20);
+                       CheckDouble (3.1415926535897932384626433e+20);
+                       CheckDouble (double.NaN);
+                       CheckDouble (double.PositiveInfinity);
+                       CheckDouble (double.NegativeInfinity);
+                       CheckDouble (double.MinValue);
+                       CheckDouble (double.MaxValue);
+
+                       // A number which needs 17 digits (see http://stackoverflow.com/questions/6118231/why-do-i-need-17-significant-digits-and-not-16-to-represent-a-double)
+                       CheckDouble (18014398509481982.0);
+
+                       // Values around the smallest positive decimal value
+                       CheckDouble (1.123456789e-29);
+                       CheckDouble (1.123456789e-28);
+
+                       CheckDouble (1.1E-29, "0.000000000000000000000000000011");
+                       // This is being parsed as a decimal and rounded to 1e-28, even though it can be more accurately be represented by a double
+                       //CheckDouble (1.1E-28, "0.00000000000000000000000000011");
+               }
+
+               // Retry the test with different locales
+               [Test]
+               public void CheckNumbersCulture () 
+               {
+                       CultureInfo old = Thread.CurrentThread.CurrentCulture;
+                       try {
+                               Thread.CurrentThread.CurrentCulture = new CultureInfo ("en");
+                               CheckNumbers ();
+                               Thread.CurrentThread.CurrentCulture = new CultureInfo ("fr");
+                               CheckNumbers ();
+                               Thread.CurrentThread.CurrentCulture = new CultureInfo ("de");
+                               CheckNumbers ();
+                       } finally {
+                               Thread.CurrentThread.CurrentCulture = old;
+                       }
+               }
+
+               // Convert a string to json and parse the string, then compare the result to the original value
+               void CheckString (string str)
+               {
+                       var json = new JsonPrimitive (str).ToString ();
+                       // Check whether the string is valid Unicode (will throw for broken surrogate pairs)
+                       new UTF8Encoding (false, true).GetBytes (json);
+                       string jvalue = (string) JsonValue.Parse (json);
+                       Assert.AreEqual (str, jvalue);
+               }
+               
+               // String handling: http://tools.ietf.org/html/rfc7159#section-7
+               [Test]
+               public void CheckStrings () 
+               {
+                       Assert.AreEqual ("\"test\"", new JsonPrimitive ("test").ToString ());
+                       // Handling of characters
+                       Assert.AreEqual ("\"f\"", new JsonPrimitive ('f').ToString ());
+                       Assert.AreEqual ('f', (char) JsonValue.Parse ("\"f\""));
+
+                       // Control characters with special escape sequence
+                       Assert.AreEqual ("\"\\b\\f\\n\\r\\t\"", new JsonPrimitive ("\b\f\n\r\t").ToString ());
+                       // Other characters which must be escaped
+                       Assert.AreEqual (@"""\""\\""", new JsonPrimitive ("\"\\").ToString ());
+                       // Control characters without special escape sequence
+                       for (int i = 0; i < 32; i++)
+                               if (i != '\b' && i != '\f' && i != '\n' && i != '\r' && i != '\t')
+                                       Assert.AreEqual ("\"\\u" + i.ToString ("x04") + "\"", new JsonPrimitive ("" + (char) i).ToString ());
+
+                       // JSON does not require U+2028 and U+2029 to be escaped, but
+                       // JavaScript does require this:
+                       // http://stackoverflow.com/questions/2965293/javascript-parse-error-on-u2028-unicode-character/9168133#9168133
+                       Assert.AreEqual ("\"\\u2028\\u2029\"", new JsonPrimitive ("\u2028\u2029").ToString ());
+
+                       // '/' also does not have to be escaped, but escaping it when
+                       // preceeded by a '<' avoids problems with JSON in HTML <script> tags
+                       Assert.AreEqual ("\"<\\/\"", new JsonPrimitive ("</").ToString ());
+                       // Don't escape '/' in other cases as this makes the JSON hard to read
+                       Assert.AreEqual ("\"/bar\"", new JsonPrimitive ("/bar").ToString ());
+                       Assert.AreEqual ("\"foo/bar\"", new JsonPrimitive ("foo/bar").ToString ());
+
+                       CheckString ("test\b\f\n\r\t\"\\/</\0x");
+                       for (int i = 0; i < 65536; i++)
+                               CheckString ("x" + ((char) i));
+
+                       // Check broken surrogate pairs
+                       CheckString ("\ud800");
+                       CheckString ("x\ud800");
+                       CheckString ("\udfff\ud800");
+                       CheckString ("\ude03\ud912");
+                       CheckString ("\uc000\ubfff");
+                       CheckString ("\udfffx");
+                       // Valid strings should not be escaped:
+                       Assert.AreEqual ("\"\ud7ff\"", new JsonPrimitive ("\ud7ff").ToString ());
+                       Assert.AreEqual ("\"\ue000\"", new JsonPrimitive ("\ue000").ToString ());
+                       Assert.AreEqual ("\"\ud800\udc00\"", new JsonPrimitive ("\ud800\udc00").ToString ());
+                       Assert.AreEqual ("\"\ud912\ude03\"", new JsonPrimitive ("\ud912\ude03").ToString ());
+                       Assert.AreEqual ("\"\udbff\udfff\"", new JsonPrimitive ("\udbff\udfff").ToString ());
                }
        }
 }
+
+// vim: noexpandtab
+// Local Variables:
+// tab-width: 4
+// c-basic-offset: 4
+// indent-tabs-mode: t
+// End: