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-rw-r--r--tests/functional/eval.sh4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/functional/eval.sh b/tests/functional/eval.sh
index 2b34caddb..9c125b569 100644
--- a/tests/functional/eval.sh
+++ b/tests/functional/eval.sh
@@ -51,3 +51,7 @@ mkdir -p $TEST_ROOT/xyzzy $TEST_ROOT/foo
ln -sfn ../xyzzy $TEST_ROOT/foo/bar
printf 123 > $TEST_ROOT/xyzzy/default.nix
[[ $(nix eval --impure --expr "import $TEST_ROOT/foo/bar") = 123 ]]
+
+# Test that unknown settings are warned about
+out="$(expectStderr 0 nix eval --option foobar baz --expr '""' --raw)"
+[[ "$(echo "$out" | grep foobar | wc -l)" = 1 ]]