build-system/python: Make sure 'check' returns failures.

* guix/build/python-build-system.scm (check): Wrap 'call-setuppy' in 'if' so
that it actually fails when the tests fail. Print informational message when
skipped.

1 files changed, 9 insertions, 5 deletions

diff --git a/guix/build/python-build-system.scm b/guix/build/python-build-system.scm
index 3f280b0ac0..dd07986b94 100644
--- a/guix/build/python-build-system.scm
+++ b/guix/build/python-build-system.scm
@@ -137,11 +137,15 @@
       ;; (given with `package_dir`). This will by copied to the output, too,
       ;; so we need to remove.
       (let ((before (find-files "build" "\\.egg-info$" #:directories? #t)))
-        (call-setuppy test-target '() use-setuptools?)
-        (let* ((after (find-files "build" "\\.egg-info$" #:directories? #t))
-               (inter (lset-difference eqv? after before)))
-          (for-each delete-file-recursively inter)))
-    #t))
+        (if (call-setuppy test-target '() use-setuptools?)
+            (let* ((after (find-files "build" "\\.egg-info$" #:directories? #t))
+                   (inter (lset-difference eqv? after before)))
+              (for-each delete-file-recursively inter)
+              #t)
+            #f))
+      (begin
+        (format #t "test suite not run~%")
+        #t)))
 
 (define (get-python-version python)
   (let* ((version     (last (string-split python #\-)))