gnu: fabric: Enable tests.

* gnu/packages/patches/fabric-tests.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/admin.scm (fabric)[source]: Use it.
[native-inputs]: Add PYTHON2-FUDGE, PYTHON2-JINJA2 and PYTHON2-NOSE.
[arguments]<#:tests>: Remove.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu/local.mk

@@ -552,6 +552,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/eudev-conflicting-declaration.patch	\
   %D%/packages/patches/evilwm-lost-focus-bug.patch		\
   %D%/packages/patches/expat-CVE-2016-0718-fix-regression.patch	\
+  %D%/packages/patches/fabric-tests.patch			\
   %D%/packages/patches/fastcap-mulGlobal.patch			\
   %D%/packages/patches/fastcap-mulSetup.patch			\
   %D%/packages/patches/fasthenry-spAllocate.patch		\

gnu/packages/admin.scm

@@ -12,10 +12,10 @@
 ;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Peter Feigl <peter.feigl@nexoid.at>
 ;;; Copyright © 2016 John J. Foerch <jjfoerch@earthlink.net>
-;;; Coypright © 2016, 2017 ng0 <contact.ng0@cryptolab.net>
+;;; Copyright © 2016, 2017 ng0 <contact.ng0@cryptolab.net>
-;;; Coypright © 2016 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2016 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Coypright © 2016 John Darrington <jmd@gnu.org>
+;;; Copyright © 2016 John Darrington <jmd@gnu.org>
-;;; Coypright © 2017 Ben Sturmfels <ben@sturm.com.au>
+;;; Copyright © 2017 Ben Sturmfels <ben@sturm.com.au>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -2060,11 +2060,15 @@ Intel DRM Driver.")
        (uri (pypi-uri "Fabric" version))
        (sha256
         (base32
-         "1z17hw0yiqp1blq217zxkg2jzkv8qd79saqhscgsw14mwlcqpwd0"))))
+         "1z17hw0yiqp1blq217zxkg2jzkv8qd79saqhscgsw14mwlcqpwd0"))
+       (patches (search-patches "fabric-tests.patch"))))
     (build-system python-build-system)
     (arguments
-     `(#:tests? #f     ;XXX: Tests attempt to download Python "fudge" package.
+     `(#:python ,python-2))                       ;Python 2 only
-       #:python ,python-2))                       ;Python 2 only
+    (native-inputs
+     `(("python2-fudge" ,python2-fudge) ; Requires < 1.0
+       ("python2-jinja2" ,python2-jinja2) ; Requires < 3.0
+       ("python2-nose" ,python2-nose))) ; Requires < 2.0
     (propagated-inputs
      ;; Required upgrading python-paramiko 1.17.4 to fix an incompatibility
      ;; between python-paramiko and newer python-pycrypto. Without this, the

gnu/packages/patches/fabric-tests.patch

@@ -0,0 +1,15 @@
+The `fab` excecutable doesn't exist during the test phase as it is created
+dynamically during installation. Refer to the equivalent Python module
+directly.
+
+--- a/tests/test_utils.py
++++ b/tests/test_utils.py
+@@ -93,7 +93,7 @@
+     # perform when they are allowed to bubble all the way to the top. So, we
+     # invoke a subprocess and look at its stderr instead.
+     with quiet():
+-        result = local("fab -f tests/support/aborts.py kaboom", capture=True)
++        result = local("python -m fabric -f tests/support/aborts.py kaboom", capture=True)
+     # When error in #1318 is present, this has an extra "It burns!" at end of
+     # stderr string.
+     eq_(result.stderr, "Fatal error: It burns!\n\nAborting.")