Don't use ExUnit in production code

[tshakah]

This changes the use of assert to raise on nil, and removes the commented out asserts

I'm actually not sure what tests to write to get this to fail

[g-andrade]

It's OK, I think there's no need to test it since the check is only there to ensure that, in the rare event that the caller of this module is handling it wrong, a more obscure exception won't be produced in later stages of decoding - it is indeed an assertion.

Now, for some reason CI isn't being triggered... I'm going to close and reopen the PR to see if that does it.

[tshakah]

Github has been playing up for me today, although their status page says nothing is wrong

[g-andrade]

Ah, CI is failing because of the infamous test coverage threshold, which I can never get to 100 because of Elixir structs... we just need to set it in mix.exs to whatever value is now failing with.

[tshakah]

You can get structs to be covered by using them in pattern matches in tests, I'll push a commit with an example

[tshakah]

Those two commits have gotten me another 1% coverage locally

[g-andrade]

You can get structs to be covered by using them in pattern matches in tests, I'll push a commit with an example

Ohh, thanks for the tip! And for your contribution as well. I’ll merge it and tag a new version tomorrow if I get a chance; if not, later this week for sure.

[g-andrade]

Closes #19

[g-andrade]

0.1.3 tagged and published to Hex 🎉

[tshakah]

Thanks 🎉