diff --git a/tests/integration/test_sweep.py b/tests/integration/test_sweep.py
new file mode 100644
index 0000000..06b2bfc
--- /dev/null
+++ b/tests/integration/test_sweep.py
@@ -0,0 +1,27 @@
+"""Integration test for sweep updates."""
+import pytest_check as check
+
+from cliconfig import make_config, update_config
+
+
+def test_sweep() -> None:
+    """Integration test for sweep."""
+    config = make_config("tests/configs/integration/sweep.yaml", no_cli=True)
+    expected_dict = {
+        "args": {"a": 5, "b": 3, "c": True, "d": [1, 0]},
+        "res": [1, 0, 3, 6],
+    }
+    check.equal(config.dict, expected_dict)
+
+    config = update_config(
+        config, {"args": {"a": 2, "b": 7, "c": False, "d": [1, 2, 3]}}
+    )
+    expected_dict = {
+        "args": {"a": 2, "b": 7, "c": False, "d": [1, 2, 3]},
+        "res": [1, 2, 3, 0, 7],
+    }
+    check.equal(config.dict, expected_dict)
+    config = update_config(config, {"args": {"a": 2}, "res": 5})
+    check.equal(config.res, 5)
+    config = update_config(config, {"args": {"a": 3}})
+    check.equal(config.res, 5)