add have_encrypt_attribute_matcher to test usage of the encrypts macro

[theforestvn88]

Since Rails 7.0, Active Record supports application-level encryption.
So i think it would be nice to have a matcher that help to test usage of the encrypts macro:

RSpec.describe Survey, type: :model do
    it { should have_encrypt_attribute(:access_code).downcase(true)  }
end

[matsales28]

Thanks a lot for your contribution! I left some comments, please let me know if I can help you with anything to move this PR forward. There are also some linting issues. You can check them here.

Once again, thank you for contributing.

[danielolivaresd]

This would be a great addition. May I suggest a name change? have_encrypt_attribute have_encrypted_attribute

[matsales28]

This would be a great addition. May I suggest a name change? have_encrypt_attribute have_encrypted_attribute

After a second look, this new method/matcher is quite similar to the serialize one, and our matcher is just serialize in that case. I'd say to keep a pattern across the matches to change to encrypts(:attr) instead of have_encrypt_attribute. I'd love to hear your thoughts on this @vsppedro.

[matsales28]

@theforestvn88 I think it would be better to name this method as encrypts(:attr). Do you mind updating your PR with this change? Also, there's a small conflict on the README.md file, can you resolve it?

[vsppedro]

Sorry for taking so long to respond. I agree. I think your suggestion it's a good idea.

[theforestvn88]

At the first time i use shoulda, i surprised that it uses should have_many() meanwhile Rails use has_many() because i thought that it provide some thing like should <whatever rails do> to test <whatever rails do>. Turn out, you guys try to correct the grammar here.

Anyway, i just want to know that in this case what will we should use: should encrypts(:attr) or should encrypt(:attr) without s ?

[vsppedro]

Good question! should encrypt(:attr), without s, has my vote.

[matsales28]

I'm fine either way. Let's use encrypt(:attr) then.

[vsppedro]

LGTM!