nixpkgs/pkgs/applications/science/math/sage/patches/dont-test-guess-gaproot.patch

diff --git a/src/sage/libs/gap/util.pyx b/src/sage/libs/gap/util.pyx
index 5ff67107c1..1318df86fd 100644
--- a/src/sage/libs/gap/util.pyx
+++ b/src/sage/libs/gap/util.pyx
@@ -165,7 +165,7 @@ def _guess_gap_root():
     EXAMPLES::
 
         sage: from sage.libs.gap.util import _guess_gap_root
-        sage: _guess_gap_root()
+        sage: _guess_gap_root() # not tested (not necessary on nixos)
         The gap-4.5.5.spkg (or later) seems to be not installed!
         ...
     """