public static void ReadAheadFromRoot(int stringSize)
{
string json = CreateTestStringProperty(stringSize);
var options = new JsonSerializerOptions();
options.Converters.Add(new ClassWithStringPropertyConverter());
// Ensure buffer size is small as possible for read-ahead.
options.DefaultBufferSize = 1;
byte[] data = Encoding.UTF8.GetBytes(json);
{
MemoryStream stream = new MemoryStream(data);
ClassWithStringProperties obj = JsonSerializer.DeserializeAsync <ClassWithStringProperties>(stream, options).Result;
VerifyClassWithStringProperties(obj, stringSize);
string jsonSerialized = JsonSerializer.Serialize(obj, options);
Assert.Equal(json, jsonSerialized);
}
{
// Verify extension data works with read-ahead. Extension data stored on JsonElement which has a custom converter.
MemoryStream stream = new MemoryStream(data);
ClassWithExtensionData obj = JsonSerializer.DeserializeAsync <ClassWithExtensionData>(stream, options).Result;
VerifyExtensionDataStringProperties(obj, stringSize);
string jsonSerialized = JsonSerializer.Serialize(obj, options);
Assert.Equal(json, jsonSerialized);
}
}
private static void VerifyClassWithStringProperties(ClassWithStringProperties obj, int stringSize)
{
// The 10 properties will cause buffer boundary cases where the converter requires read-ahead.
Assert.Equal(new string('0', stringSize), obj.MyString0);
Assert.Equal(new string('1', stringSize), obj.MyString1);
Assert.Equal(new string('2', stringSize), obj.MyString2);
Assert.Equal(new string('3', stringSize), obj.MyString3);
Assert.Equal(new string('4', stringSize), obj.MyString4);
Assert.Equal(new string('5', stringSize), obj.MyString5);
Assert.Equal(new string('6', stringSize), obj.MyString6);
Assert.Equal(new string('7', stringSize), obj.MyString7);
Assert.Equal(new string('8', stringSize), obj.MyString8);
Assert.Equal(new string('9', stringSize), obj.MyString9);
}
public static void ReadAheadFromRoot(int stringSize)
{
string json = CreateTestStringProperty(stringSize);
var options = new JsonSerializerOptions();
options.Converters.Add(new ClassWithStringPropertyConverter());
// Ensure buffer size is small as possible for read-ahead.
options.DefaultBufferSize = 1;
byte[] data = Encoding.UTF8.GetBytes(json);
MemoryStream stream = new MemoryStream(data);
ClassWithStringProperties obj = JsonSerializer.ReadAsync <ClassWithStringProperties>(stream, options).Result;
VerifyClassWithStringProperties(obj, stringSize);
string jsonSerialized = JsonSerializer.ToString(obj, options);
Assert.Equal(json, jsonSerialized);
}