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-rw-r--r--tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.exp1
-rw-r--r--tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.nix4
2 files changed, 5 insertions, 0 deletions
diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.exp b/tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.exp
new file mode 100644
index 000000000000..bbb332a5eea0
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.exp
@@ -0,0 +1 @@
+[ "x" "y" ]
diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.nix b/tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.nix
new file mode 100644
index 000000000000..684c88f80067
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/eval-okay-observe-infinite-attrs.nix
@@ -0,0 +1,4 @@
+# The below attribute set is infinitely large, but we should be able
+# to observe it as long as we don't access its entire value.
+
+let as = { x = 123; y = as; }; in builtins.attrNames as.y.y