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[bug#35812] [PATCH] fix hackage cabal tests


From: Ludovic Courtès
Subject: [bug#35812] [PATCH] fix hackage cabal tests
Date: Tue, 21 May 2019 16:48:34 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux)

Hello Robert,

Robert Vollmert <address@hidden> skribis:

> Hackage cabal tests didn’t run independently due to memoization,
> and test-cabal-6 was failing.

I don’t think memoization can get in the way here: the argument list is
used as a key in the memoization hash table.  Thus, if you pass
different arguments, you get a cache miss and call the underlying
procedure.

Or am I missing something?

> From 8b6dac85a9f6c4e851c1a75a4958dff7915fb2f1 Mon Sep 17 00:00:00 2001
> From: Robert Vollmert <address@hidden>
> Date: Fri, 17 May 2019 10:48:42 +0200
> Subject: [PATCH] tests: fix cabal tests to test and pass
>
> * guix/import/hackage.scm: export unmemoized import function
> * tests/hackage.scm: use unmemoized import function to make tests independent
> * tests/hackage.scm: fix failing test-cabal-6 by providing expected output

[...]

>  (test-assert "hackage->guix-package test 6"
> -  (eval-test-with-cabal test-cabal-6
> -                        #:cabal-environment '(("impl" . "ghc-7.8"))))
> +  (mock
> +   ((guix import hackage) hackage-fetch
> +    (lambda (name-version)
> +      (call-with-input-string test-cabal-6
> +        read-cabal)))
> +   (match (hackage->guix-package-impl "foo")
> +     (('package
> +        ('name "ghc-foo")
> +        ('version "1.0.0")
> +        ('source
> +         ('origin
> +           ('method 'url-fetch)
> +           ('uri ('string-append
> +                  "https://hackage.haskell.org/package/foo/foo-";
> +                  'version
> +                  ".tar.gz"))
> +           ('sha256
> +            ('base32
> +             (? string? hash)))))
> +        ('build-system 'haskell-build-system)
> +        ('inputs
> +         ('quasiquote
> +          (("ghc-b" ('unquote 'ghc-b))
> +           ("ghc-http" ('unquote 'ghc-http))
> +           ("ghc-mtl" ('unquote 'ghc-mtl)))))
> +        ('native-inputs
> +         ('quasiquote
> +          (("ghc-haskell-gi" ('unquote 'ghc-haskell-gi)))))
> +        ('home-page "http://test.org";)
> +        ('synopsis (? string?))
> +        ('description (? string?))
> +        ('license 'bsd-3))
> +      #t)
> +     (x
> +      (pk 'fail x #f)))))

So this test needed to be changed as a result of turning off
memoization?

Thanks,
Ludo’.





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