tests: Make the STORE test more robust in a "pure" environment.

Otherwise, the test crashes (not fails) when run in `guix environment --pure guix`.

Fixes <https://bugs.gnu.org/46445>.

* tests/store.scm (%shell): Fallback to "/bin/sh".

diff --git a/tests/store.scm b/tests/store.scm
index cda0e03..9c25adf 100644 (file)
--- a/tests/store.scm
+++ b/tests/store.scm
@@ -50,7 +50,7 @@
   (open-connection-for-tests))
 
 (define %shell
-  (or (getenv "SHELL") (getenv "CONFIG_SHELL")))
+  (or (getenv "SHELL") (getenv "CONFIG_SHELL") "/bin/sh"))
 
 \f
 (test-begin "store")