1 files changed, 13 insertions, 0 deletions
diff --git a/test/t/unit/test_unit_expand.py b/test/t/unit/test_unit_expand.py
new file mode 100644
index 00000000..7c0a9836
--- /dev/null
+++ b/test/t/unit/test_unit_expand.py
@@ -0,0 +1,13 @@
+import pytest
+
+from conftest import assert_bash_exec
+
+
+@pytest.mark.bashcomp(cmd=None)
+class TestUnitExpand:
+    def test_1(self, bash):
+        assert_bash_exec(bash, "_expand >/dev/null")
+
+    def test_2(self, bash):
+        """Test environment non-pollution, detected at teardown."""
+        assert_bash_exec(bash, "foo() { _expand; }; foo; unset foo")