public void Path()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
string text = "Hello world.";
byte[] data = Encoding.UTF8.GetBytes(text);
using (JsonTextWriter writer = new JsonTextWriter(sw))
{
writer.Formatting = Formatting.Indented;
writer.WriteStartArray();
Assert.Equal("", writer.Path);
writer.WriteStartObject();
Assert.Equal("[0]", writer.Path);
writer.WritePropertyName("Property1");
Assert.Equal("[0].Property1", writer.Path);
writer.WriteStartArray();
Assert.Equal("[0].Property1", writer.Path);
writer.WriteValue(1);
Assert.Equal("[0].Property1[0]", writer.Path);
writer.WriteStartArray();
Assert.Equal("[0].Property1[1]", writer.Path);
writer.WriteStartArray();
Assert.Equal("[0].Property1[1][0]", writer.Path);
writer.WriteStartArray();
Assert.Equal("[0].Property1[1][0][0]", writer.Path);
writer.WriteEndObject();
Assert.Equal("[0]", writer.Path);
writer.WriteStartObject();
Assert.Equal("[1]", writer.Path);
writer.WritePropertyName("Property2");
Assert.Equal("[1].Property2", writer.Path);
writer.WriteStartConstructor("Constructor1");
Assert.Equal("[1].Property2", writer.Path);
writer.WriteNull();
Assert.Equal("[1].Property2[0]", writer.Path);
writer.WriteStartArray();
Assert.Equal("[1].Property2[1]", writer.Path);
writer.WriteValue(1);
Assert.Equal("[1].Property2[1][0]", writer.Path);
writer.WriteEnd();
Assert.Equal("[1].Property2[1]", writer.Path);
writer.WriteEndObject();
Assert.Equal("[1]", writer.Path);
writer.WriteEndArray();
Assert.Equal("", writer.Path);
}
StringAssert.Equal(@"[
{
""Property1"": [
1,
[
[
[]
]
]
]
},
{
""Property2"": new Constructor1(
null,
[
1
]
)
}
]", sb.ToString());
}
public void BadWriteEndArray()
{
AssertException.Throws<JsonWriterException>(() =>
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(0.0);
jsonWriter.WriteEndArray();
jsonWriter.WriteEndArray();
}
}, "No token to close. Path ''.");
}
public void WriteBytesInArray()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
string text = "Hello world.";
byte[] data = Encoding.UTF8.GetBytes(text);
using (JsonTextWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
Assert.Equal(Formatting.Indented, jsonWriter.Formatting);
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(data);
jsonWriter.WriteValue(data);
jsonWriter.WriteValue((object)data);
jsonWriter.WriteValue((byte[])null);
jsonWriter.WriteValue((Uri)null);
jsonWriter.WriteEndArray();
}
string expected = @"[
""SGVsbG8gd29ybGQu"",
""SGVsbG8gd29ybGQu"",
""SGVsbG8gd29ybGQu"",
null,
null
]";
string result = sb.ToString();
StringAssert.Equal(expected, result);
}
public void WriteFloatingPointNumber()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.FloatFormatHandling = FloatFormatHandling.Symbol;
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(0.0);
jsonWriter.WriteValue(0f);
jsonWriter.WriteValue(0.1);
jsonWriter.WriteValue(1.0);
jsonWriter.WriteValue(1.000001);
jsonWriter.WriteValue(0.000001);
jsonWriter.WriteValue(double.Epsilon);
jsonWriter.WriteValue(double.PositiveInfinity);
jsonWriter.WriteValue(double.NegativeInfinity);
jsonWriter.WriteValue(double.NaN);
jsonWriter.WriteValue(double.MaxValue);
jsonWriter.WriteValue(double.MinValue);
jsonWriter.WriteValue(float.PositiveInfinity);
jsonWriter.WriteValue(float.NegativeInfinity);
jsonWriter.WriteValue(float.NaN);
jsonWriter.WriteEndArray();
}
Assert.Equal(@"[0.0,0.0,0.1,1.0,1.000001,1E-06,4.94065645841247E-324,Infinity,-Infinity,NaN,1.7976931348623157E+308,-1.7976931348623157E+308,Infinity,-Infinity,NaN]", sb.ToString());
}
public void WriteIntegerNumber()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw) { Formatting = Formatting.Indented })
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(int.MaxValue);
jsonWriter.WriteValue(int.MinValue);
jsonWriter.WriteValue(0);
jsonWriter.WriteValue(-0);
jsonWriter.WriteValue(9L);
jsonWriter.WriteValue(9UL);
jsonWriter.WriteValue(long.MaxValue);
jsonWriter.WriteValue(long.MinValue);
jsonWriter.WriteValue(ulong.MaxValue);
jsonWriter.WriteValue(ulong.MinValue);
jsonWriter.WriteEndArray();
}
Console.WriteLine(sb.ToString());
StringAssert.Equal(@"[
2147483647,
-2147483648,
0,
0,
9,
9,
9223372036854775807,
-9223372036854775808,
18446744073709551615,
0
]", sb.ToString());
}
public void FloatingPointNonFiniteNumbers_QuoteChar()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonTextWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
jsonWriter.FloatFormatHandling = FloatFormatHandling.String;
jsonWriter.QuoteChar = '\'';
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(double.NaN);
jsonWriter.WriteValue(double.PositiveInfinity);
jsonWriter.WriteValue(double.NegativeInfinity);
jsonWriter.WriteValue(float.NaN);
jsonWriter.WriteValue(float.PositiveInfinity);
jsonWriter.WriteValue(float.NegativeInfinity);
jsonWriter.WriteEndArray();
jsonWriter.Flush();
}
string expected = @"[
'NaN',
'Infinity',
'-Infinity',
'NaN',
'Infinity',
'-Infinity'
]";
string result = sb.ToString();
StringAssert.Equal(expected, result);
}
public void WriteRawInArray()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
jsonWriter.FloatFormatHandling = FloatFormatHandling.Symbol;
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(double.NaN);
jsonWriter.WriteRaw(",[1,2,3,4,5]");
jsonWriter.WriteRaw(",[1,2,3,4,5]");
jsonWriter.WriteValue(float.NaN);
jsonWriter.WriteEndArray();
}
string expected = @"[
NaN,[1,2,3,4,5],[1,2,3,4,5],
NaN
]";
string result = sb.ToString();
StringAssert.Equal(expected, result);
}
public void StringEscaping()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(@"""These pretzels are making me thirsty!""");
jsonWriter.WriteValue("Jeff's house was burninated.");
jsonWriter.WriteValue("1. You don't talk about fight club.\r\n2. You don't talk about fight club.");
jsonWriter.WriteValue("35% of\t statistics\n are made\r up.");
jsonWriter.WriteEndArray();
}
string expected = @"[""\""These pretzels are making me thirsty!\"""",""Jeff's house was burninated."",""1. You don't talk about fight club.\r\n2. You don't talk about fight club."",""35% of\t statistics\n are made\r up.""]";
string result = sb.ToString();
Console.WriteLine("StringEscaping");
Console.WriteLine(result);
Assert.Equal(expected, result);
}
public void FloatingPointNonFiniteNumbers_Zero()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
jsonWriter.FloatFormatHandling = FloatFormatHandling.DefaultValue;
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(double.NaN);
jsonWriter.WriteValue(double.PositiveInfinity);
jsonWriter.WriteValue(double.NegativeInfinity);
jsonWriter.WriteValue(float.NaN);
jsonWriter.WriteValue(float.PositiveInfinity);
jsonWriter.WriteValue(float.NegativeInfinity);
jsonWriter.WriteValue((double?)double.NaN);
jsonWriter.WriteValue((double?)double.PositiveInfinity);
jsonWriter.WriteValue((double?)double.NegativeInfinity);
jsonWriter.WriteValue((float?)float.NaN);
jsonWriter.WriteValue((float?)float.PositiveInfinity);
jsonWriter.WriteValue((float?)float.NegativeInfinity);
jsonWriter.WriteEndArray();
jsonWriter.Flush();
}
string expected = @"[
0.0,
0.0,
0.0,
0.0,
0.0,
0.0,
null,
null,
null,
null,
null,
null
]";
string result = sb.ToString();
StringAssert.Equal(expected, result);
}
public void WriteValueObjectWithNullable()
{
StringWriter sw = new StringWriter();
using (JsonTextWriter jsonWriter = new JsonTextWriter(sw))
{
char? value = 'c';
jsonWriter.WriteStartArray();
jsonWriter.WriteValue((object)value);
jsonWriter.WriteEndArray();
}
string json = sw.ToString();
string expected = @"[""c""]";
Assert.Equal(expected, json);
}
public void WriteValueObjectWithUnsupportedValue()
{
AssertException.Throws<JsonWriterException>(() =>
{
StringWriter sw = new StringWriter();
using (JsonTextWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(new Version(1, 1, 1, 1));
jsonWriter.WriteEndArray();
}
}, @"Unsupported type: System.Version. Use the JsonSerializer class to get the object's JSON representation. Path ''.");
}
public void NullableValueFormatting()
{
StringWriter sw = new StringWriter();
using (JsonTextWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue((char?)null);
jsonWriter.WriteValue((char?)'c');
jsonWriter.WriteValue((bool?)null);
jsonWriter.WriteValue((bool?)true);
jsonWriter.WriteValue((byte?)null);
jsonWriter.WriteValue((byte?)1);
jsonWriter.WriteValue((sbyte?)null);
jsonWriter.WriteValue((sbyte?)1);
jsonWriter.WriteValue((short?)null);
jsonWriter.WriteValue((short?)1);
jsonWriter.WriteValue((ushort?)null);
jsonWriter.WriteValue((ushort?)1);
jsonWriter.WriteValue((int?)null);
jsonWriter.WriteValue((int?)1);
jsonWriter.WriteValue((uint?)null);
jsonWriter.WriteValue((uint?)1);
jsonWriter.WriteValue((long?)null);
jsonWriter.WriteValue((long?)1);
jsonWriter.WriteValue((ulong?)null);
jsonWriter.WriteValue((ulong?)1);
jsonWriter.WriteValue((double?)null);
jsonWriter.WriteValue((double?)1.1);
jsonWriter.WriteValue((float?)null);
jsonWriter.WriteValue((float?)1.1);
jsonWriter.WriteValue((decimal?)null);
jsonWriter.WriteValue((decimal?)1.1m);
jsonWriter.WriteValue((DateTime?)null);
jsonWriter.WriteValue((DateTime?)new DateTime(DateTimeUtils.InitialJavaScriptDateTicks, DateTimeKind.Utc));
#if !NET20
jsonWriter.WriteValue((DateTimeOffset?)null);
jsonWriter.WriteValue((DateTimeOffset?)new DateTimeOffset(DateTimeUtils.InitialJavaScriptDateTicks, TimeSpan.Zero));
#endif
jsonWriter.WriteEndArray();
}
string json = sw.ToString();
string expected;
#if !NET20
expected = @"[null,""c"",null,true,null,1,null,1,null,1,null,1,null,1,null,1,null,1,null,1,null,1.1,null,1.1,null,1.1,null,""1970-01-01T00:00:00Z"",null,""1970-01-01T00:00:00+00:00""]";
#else
expected = @"[null,""c"",null,true,null,1,null,1,null,1,null,1,null,1,null,1,null,1,null,1,null,1.1,null,1.1,null,1.1,null,""1970-01-01T00:00:00Z""]";
#endif
Assert.Equal(expected, json);
}
public void ValueFormatting()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue('@');
jsonWriter.WriteValue("\r\n\t\f\b?{\\r\\n\"\'");
jsonWriter.WriteValue(true);
jsonWriter.WriteValue(10);
jsonWriter.WriteValue(10.99);
jsonWriter.WriteValue(0.99);
jsonWriter.WriteValue(0.000000000000000001d);
jsonWriter.WriteValue(0.000000000000000001m);
jsonWriter.WriteValue((string)null);
jsonWriter.WriteValue((object)null);
jsonWriter.WriteValue("This is a string.");
jsonWriter.WriteNull();
jsonWriter.WriteUndefined();
jsonWriter.WriteEndArray();
}
string expected = @"[""@"",""\r\n\t\f\b?{\\r\\n\""'"",true,10,10.99,0.99,1E-18,0.000000000000000001,null,null,""This is a string."",null,undefined]";
string result = sb.ToString();
Console.WriteLine("ValueFormatting");
Console.WriteLine(result);
Assert.Equal(expected, result);
}
public void ReadLongJsonArray()
{
int valueCount = 10000;
StringWriter sw = new StringWriter();
JsonTextWriter writer = new JsonTextWriter(sw);
writer.WriteStartArray();
for (int i = 0; i < valueCount; i++)
{
writer.WriteValue(i);
}
writer.WriteEndArray();
string json = sw.ToString();
JsonTextReader reader = new JsonTextReader(new StringReader(json));
Assert.True(reader.Read());
for (int i = 0; i < valueCount; i++)
{
Assert.True(reader.Read());
Assert.Equal((long)i, reader.Value);
}
Assert.True(reader.Read());
Assert.False(reader.Read());
}
public void WriteReadBoundaryDecimals()
{
StringWriter sw = new StringWriter();
JsonTextWriter writer = new JsonTextWriter(sw);
writer.WriteStartArray();
writer.WriteValue(decimal.MaxValue);
writer.WriteValue(decimal.MinValue);
writer.WriteEndArray();
string json = sw.ToString();
StringReader sr = new StringReader(json);
JsonTextReader reader = new JsonTextReader(sr);
Assert.True(reader.Read());
decimal? max = reader.ReadAsDecimal();
Assert.Equal(decimal.MaxValue, max);
decimal? min = reader.ReadAsDecimal();
Assert.Equal(decimal.MinValue, min);
Assert.True(reader.Read());
}
public void WriteReadWrite()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw)
{
Formatting = Formatting.Indented
})
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(true);
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("integer");
jsonWriter.WriteValue(99);
jsonWriter.WritePropertyName("string");
jsonWriter.WriteValue("how now brown cow?");
jsonWriter.WritePropertyName("array");
jsonWriter.WriteStartArray();
for (int i = 0; i < 5; i++)
{
jsonWriter.WriteValue(i);
}
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("decimal");
jsonWriter.WriteValue(990.00990099m);
jsonWriter.WriteEndObject();
jsonWriter.WriteValue(5);
jsonWriter.WriteEndArray();
jsonWriter.WriteEndObject();
jsonWriter.WriteValue("This is a string.");
jsonWriter.WriteNull();
jsonWriter.WriteNull();
jsonWriter.WriteEndArray();
}
string json = sb.ToString();
JsonSerializer serializer = new JsonSerializer();
object jsonObject = serializer.Deserialize(new JsonTextReader(new StringReader(json)));
sb = new StringBuilder();
sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw)
{
Formatting = Formatting.Indented
})
{
serializer.Serialize(jsonWriter, jsonObject);
}
Assert.Equal(json, sb.ToString());
}