1 files changed, 5 insertions, 0 deletions

diff --git a/test/testdata/eval-okay-groupBy.nix b/test/testdata/eval-okay-groupBy.nix
new file mode 100644
index 0000000..862d89d
--- /dev/null
+++ b/test/testdata/eval-okay-groupBy.nix
@@ -0,0 +1,5 @@
+with import ./lib.nix;
+
+builtins.groupBy (n:
+  builtins.substring 0 1 (builtins.hashString "sha256" (toString n))
+) (range 0 31)