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-rw-r--r--tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.exp1
-rw-r--r--tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.nix13
2 files changed, 14 insertions, 0 deletions
diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.exp b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.exp
new file mode 100644
index 000000000000..fb94ebaa492c
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.exp
@@ -0,0 +1 @@
+[ [ 1 2 3 4 5 ] [ ] [ 2 2 2 ] [ [ 1 2 ] [ 3 4 ] ] ]
diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.nix b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.nix
new file mode 100644
index 000000000000..b621fdb43e7c
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-filter.nix
@@ -0,0 +1,13 @@
+[
+  (builtins.filter (_: true) [ 1 2 3 4 5 ])
+  (builtins.filter (_: false) [ 1 2 3 4 5 ])
+  (builtins.filter (x: x == 2) [ 1 2 1 2 1 2 ])
+
+  (builtins.filter (x: (builtins.length x) > 0) [
+    [ ]
+    [ 1 2 ]
+    [ ]
+    [ ]
+    [ 3 4 ]
+  ])
+]