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-rw-r--r--tvix/eval/src/tests/nix_tests/eval-okay-groupBy.nix5
1 files changed, 5 insertions, 0 deletions
diff --git a/tvix/eval/src/tests/nix_tests/eval-okay-groupBy.nix b/tvix/eval/src/tests/nix_tests/eval-okay-groupBy.nix
new file mode 100644
index 000000000000..862d89dbd670
--- /dev/null
+++ b/tvix/eval/src/tests/nix_tests/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)