private T AssertRoundtrip <T>(string json) where T : Geometry
{
var element = JsonDocument.Parse(json).RootElement;
var geometry = GeometryJsonConverter.Read(element);
var memoryStreamOutput = new MemoryStream();
using (Utf8JsonWriter writer = new Utf8JsonWriter(memoryStreamOutput))
{
GeometryJsonConverter.Write(writer, geometry);
}
var element2 = JsonDocument.Parse(memoryStreamOutput.ToArray()).RootElement;
var geometry2 = GeometryJsonConverter.Read(element2);
var options = new JsonSerializerOptions()
{
Converters = { new GeometryJsonConverter() }
};
// Serialize and deserialize as a base class
var bytes = JsonSerializer.SerializeToUtf8Bytes(geometry2, typeof(Geometry), options);
var geometry3 = JsonSerializer.Deserialize <Geometry>(bytes, options);
// Serialize and deserialize as a concrete class
var bytes2 = JsonSerializer.SerializeToUtf8Bytes(geometry3, options);
var geometry4 = JsonSerializer.Deserialize <T>(bytes2, options);
return(geometry4);
}
private T AssertRoundtrip <T>(string json) where T : Geometry
{
var element = JsonDocument.Parse(json).RootElement;
var geometry = GeometryJsonConverter.Read(element);
var memoryStreamOutput = new MemoryStream();
using (Utf8JsonWriter writer = new Utf8JsonWriter(memoryStreamOutput))
{
GeometryJsonConverter.Write(writer, geometry);
}
var element2 = JsonDocument.Parse(memoryStreamOutput.ToArray()).RootElement;
var geometry2 = GeometryJsonConverter.Read(element2);
return((T)geometry2);
}
public void Write(Geometry value, string expectedResult)
{
// Arrange
var options = new JsonSerializerOptions();
using var stream = new MemoryStream();
using var writer = new Utf8JsonWriter(stream);
var converter = new GeometryJsonConverter();
writer.WriteStartObject();
writer.WritePropertyName("test");
// Act
converter.Write(writer, value, options);
// Assert
writer.WriteEndObject();
writer.Flush();
var result = Encoding.UTF8.GetString(stream.ToArray());
Assert.Equal(expectedResult, result);
}
