Nrt_Event needs unit tests to ensure functionality

[capnkenny]

Describe the issue:

With that said, we'll need unit tests added to ensure that Nrt_Event_* and friends work properly as our original concern was that since it could be of type T, C obviously does not have a very good way of handling this (although your solution looks to do just that).

Originally posted by @capnkenny in #486 (comment)

Please provide the steps to reproduce if possible:
N/A

Expected behaviour:
Unit tests should exist for the Nrt_Event_* functions.

Please tell us about your environment:
N/A

Additional context:
N/A

[capnkenny]

Dependent on #486 being merged

[Pheubel]

Now that #486 is merged, this can be unblocked, right

[capnkenny]

Yup, that's correct - thanks for the reminder @Pheubel