public void Write_Object()
{
TestType value = new TestType
{
StringProperty = "string value",
IntProperty = 72,
AdditionalProperty = "Not part of the interface"
};
// This is horrible, but we need a JSON comparer.
string expected = "{\"IntProperty\":72,\"StringProperty\":\"string value\",\"AdditionalProperty\":\"Not part of the interface\"}";
JsonSerializerOptions serializerOptions = new JsonSerializerOptions();
using var stream = new MemoryStream();
using (var writer = new Utf8JsonWriter(stream, new JsonWriterOptions()))
{
InterfaceJsonConverter <ITestInterface> converter = new InterfaceJsonConverter <ITestInterface>();
converter.Write(writer, value, serializerOptions);
}
stream.Seek(0, SeekOrigin.Begin); // Reset stream to beginning.
using StreamReader sr = new StreamReader(stream);
string actual = sr.ReadToEnd();
Assert.Equal(expected, actual);
}
public void Write_NullObject()
{
TestType value = null;
JsonSerializerOptions serializerOptions = new JsonSerializerOptions();
using var stream = new MemoryStream();
using (var writer = new Utf8JsonWriter(stream, new JsonWriterOptions()))
{
InterfaceJsonConverter <ITestInterface> converter = new InterfaceJsonConverter <ITestInterface>();
converter.Write(writer, value, serializerOptions);
}
stream.Seek(0, SeekOrigin.Begin); // Reset stream to beginning.
using StreamReader sr = new StreamReader(stream);
string actual = sr.ReadToEnd();
Assert.Equal("null", actual);
}
public void Read_ExpectFailure()
{
InterfaceJsonConverter <object> converter = new InterfaceJsonConverter <object>();
Utf8JsonReader reader = new Utf8JsonReader();
Type type = typeof(ITestInterface);
JsonSerializerOptions options = new JsonSerializerOptions();
Exception actualEx = null;
// This can't use Assert.Throws because refs can't be passed from within a lambda.
try
{
converter.Read(ref reader, type, options);
}
catch (Exception ex)
{
actualEx = ex;
}
Assert.NotNull(actualEx);
Assert.IsType <NotImplementedException>(actualEx);
}