public void QuoteNameAndStrings()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
JsonTextWriter writer = new JsonTextWriter(sw) { QuoteName = false };
writer.WriteStartObject();
writer.WritePropertyName("name");
writer.WriteValue("value");
writer.WriteEndObject();
writer.Flush();
Assert.Equal(@"{name:""value""}", sb.ToString());
}
public void NewLine()
{
MemoryStream ms = new MemoryStream();
using (var streamWriter = new StreamWriter(ms, new UTF8Encoding(false)) { NewLine = "\n" })
using (var jsonWriter = new JsonTextWriter(streamWriter)
{
CloseOutput = true,
Indentation = 2,
Formatting = Formatting.Indented
})
{
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("prop");
jsonWriter.WriteValue(true);
jsonWriter.WriteEndObject();
}
byte[] data = ms.ToArray();
string json = Encoding.UTF8.GetString(data, 0, data.Length);
Assert.Equal(@"{" + '\n' + @" ""prop"": true" + '\n' + "}", json);
}
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 Indentation()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonTextWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
jsonWriter.FloatFormatHandling = FloatFormatHandling.Symbol;
Assert.Equal(Formatting.Indented, jsonWriter.Formatting);
jsonWriter.Indentation = 5;
Assert.Equal(5, jsonWriter.Indentation);
jsonWriter.IndentChar = '_';
Assert.Equal('_', jsonWriter.IndentChar);
jsonWriter.QuoteName = true;
Assert.Equal(true, jsonWriter.QuoteName);
jsonWriter.QuoteChar = '\'';
Assert.Equal('\'', jsonWriter.QuoteChar);
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("propertyName");
jsonWriter.WriteValue(double.NaN);
jsonWriter.IndentChar = '?';
Assert.Equal('?', jsonWriter.IndentChar);
jsonWriter.Indentation = 6;
Assert.Equal(6, jsonWriter.Indentation);
jsonWriter.WritePropertyName("prop2");
jsonWriter.WriteValue(123);
jsonWriter.WriteEndObject();
}
string expected = @"{
_____'propertyName': NaN,
??????'prop2': 123
}";
string result = sb.ToString();
StringAssert.Equal(expected, result);
}
public void WriteObjectNestedInConstructor()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("con");
jsonWriter.WriteStartConstructor("Ext.data.JsonStore");
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("aa");
jsonWriter.WriteValue("aa");
jsonWriter.WriteEndObject();
jsonWriter.WriteEndConstructor();
jsonWriter.WriteEndObject();
}
Assert.Equal(@"{""con"":new Ext.data.JsonStore({""aa"":""aa""})}", sb.ToString());
}
public void WriteRawValue()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
int i = 0;
string rawJson = "[1,2]";
jsonWriter.WriteStartObject();
while (i < 3)
{
jsonWriter.WritePropertyName("d" + i);
jsonWriter.WriteRawValue(rawJson);
i++;
}
jsonWriter.WriteEndObject();
}
Assert.Equal(@"{""d0"":[1,2],""d1"":[1,2],""d2"":[1,2]}", sb.ToString());
}
public void State()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
Assert.Equal(WriteState.Start, jsonWriter.WriteState);
jsonWriter.WriteStartObject();
Assert.Equal(WriteState.Object, jsonWriter.WriteState);
Assert.Equal("", jsonWriter.Path);
jsonWriter.WritePropertyName("CPU");
Assert.Equal(WriteState.Property, jsonWriter.WriteState);
Assert.Equal("CPU", jsonWriter.Path);
jsonWriter.WriteValue("Intel");
Assert.Equal(WriteState.Object, jsonWriter.WriteState);
Assert.Equal("CPU", jsonWriter.Path);
jsonWriter.WritePropertyName("Drives");
Assert.Equal(WriteState.Property, jsonWriter.WriteState);
Assert.Equal("Drives", jsonWriter.Path);
jsonWriter.WriteStartArray();
Assert.Equal(WriteState.Array, jsonWriter.WriteState);
jsonWriter.WriteValue("DVD read/writer");
Assert.Equal(WriteState.Array, jsonWriter.WriteState);
Assert.Equal("Drives[0]", jsonWriter.Path);
jsonWriter.WriteEnd();
Assert.Equal(WriteState.Object, jsonWriter.WriteState);
Assert.Equal("Drives", jsonWriter.Path);
jsonWriter.WriteEndObject();
Assert.Equal(WriteState.Start, jsonWriter.WriteState);
Assert.Equal("", jsonWriter.Path);
}
}
public void Indenting()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("CPU");
jsonWriter.WriteValue("Intel");
jsonWriter.WritePropertyName("PSU");
jsonWriter.WriteValue("500W");
jsonWriter.WritePropertyName("Drives");
jsonWriter.WriteStartArray();
jsonWriter.WriteValue("DVD read/writer");
jsonWriter.WriteComment("(broken)");
jsonWriter.WriteValue("500 gigabyte hard drive");
jsonWriter.WriteValue("200 gigabype hard drive");
jsonWriter.WriteEnd();
jsonWriter.WriteEndObject();
Assert.Equal(WriteState.Start, jsonWriter.WriteState);
}
// {
// "CPU": "Intel",
// "PSU": "500W",
// "Drives": [
// "DVD read/writer"
// /*(broken)*/,
// "500 gigabyte hard drive",
// "200 gigabype hard drive"
// ]
// }
string expected = @"{
""CPU"": ""Intel"",
""PSU"": ""500W"",
""Drives"": [
""DVD read/writer""
/*(broken)*/,
""500 gigabyte hard drive"",
""200 gigabype hard drive""
]
}";
string result = sb.ToString();
StringAssert.Equal(expected, result);
}
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());
}