Ruby on Rails optimization for testing (flash messages and views) and I18N

Question

When testing flash messages and generated views, you should test the generated output in one language:

should_set_the_flash_to /Hello/i 

or you should bring I18N to your tests:

 should_set_the_flash_to I18n.t("sign_up.welcome") 

Maybe my question is simply not the right question to ask ... feel free to respond with a link if there are already good explanations for combining testing and i18n ...

Update : enter the correct internationalization code after Arsen7 answer, thanks Arsen7!

Answer 1

It depends on what you are trying to verify.

If you check if the flash text is “Hello”, you are sure that you know what your user will see.

On the other hand, checking whether the flash memory contains the same as the auxiliary "t" for a given line also makes sense sometimes - for example, when your translation file is changed frequently or its contents are created by someone else, after some time.

I personally verify the exact final translation ( assert_equal "Hello", flash[:message] ).

This assures me that: 1) the translation sounds normal, 2) the language is correctly recognized (you do not want the Polish messages to be for your English users?)

Regarding the second part of your question:

Maybe " should_set_the_flash_to I18n.t("sign_up.welcome") will work?