public void JsonMessageDeserializer_WhenGivenNullTextWriter_ThrowsArgumentNullException() {
// given
IMessageTypeResolver resolver = new UnitTestMessageTypeResolver();
TextReader textReader = null;
// when
ArgumentNullException exception =
Assert.Throws<ArgumentNullException>(
() => new JsonMessageDeserializer(resolver, textReader));
// then
Assert.That(() => exception.ParamName, Is.EqualTo("textReader"));
}
public void JsonMessageSerializer_WhenGivenNullMessage_ThrowsArgumentNullException() {
// given
IMessageTypeResolver resolver = new UnitTestMessageTypeResolver();
TextWriter textWriter = new StringWriter();
// when
ArgumentNullException exception =
Assert.Throws<ArgumentNullException>(
() => new JsonMessageSerializer(resolver, textWriter).SerializeMessage(null));
// then
Assert.That(() => exception.ParamName, Is.EqualTo("message"));
}
public void JsonMessageSerializer_WhenUnderlyingMediumFails_ThrowsMessageException() {
// given
IMessageTypeResolver resolver = new UnitTestMessageTypeResolver();
TextWriter textWriter = new StringWriter();
textWriter.Dispose(); // so stringwriter will throw ObjectDisposedException
// when / then
MessageTransferException exception =
Assert.Throws<MessageTransferException>(
() => new JsonMessageSerializer(resolver, textWriter).SerializeMessage(new FakeMessage()));
// then
Assert.That(() => exception.InnerException, Is.InstanceOf<ObjectDisposedException>());
}