Hi,

Noé Lopez <noe@noé.eu> skribis:

> Here is a working version of the tests, though I don’t really understand why
> the tests are GEXPs?

The tests build derivations, each of which runs Guile code; that Guile
code is represented as gexps because it is staged to be executed when
those derivations get built.

> What is the point of using #$output and checking outside of the gexp instead
> of just using assert? And why do I need to use #$output in order for the test
> to run?

If you do (gexp->derivation "foo" #~(display "hi!")), you end up with a
derivation with zero outputs.  In that case, its builder is never
executed because we know in advance that it won’t produce anything.

If you do (gexp->derivation "bar" #~(pk #$output)), then the resulting
derivation has one output, “out”.

>   pack: Support localstatedir in AppImage format.
>   tests: pack: Improve AppImage tests.

Applied with the cosmetic change below.

Thanks!

Ludo’.