diff --git a/tests/test_utils_namespace.py b/tests/test_utils_namespace.py
new file mode 100644
index 000000000..618799b24
--- /dev/null
+++ b/tests/test_utils_namespace.py
@@ -0,0 +1,29 @@
+from types import SimpleNamespace
+from slic.utils.namespace import Namespace
+
+
+def test_namespace_pretty_repr_mixed_and_nested():
+    laser = SimpleNamespace(power="5W", wavelength="1030nm", mode="CW")
+    detector = SimpleNamespace(model="X-500")
+    stage = SimpleNamespace()  
+    experiment = SimpleNamespace(id=42, meta=SimpleNamespace(author="Dr. X", approved=True))
+
+    ns = Namespace()
+    ns.laser = laser
+    ns.detector = detector
+    ns.stage = stage
+    ns.experiment = experiment
+
+    output = repr(ns)
+
+    expected = """\
+laser    : namespace(power='5W', wavelength='1030nm', mode='CW')
+detector : namespace(model='X-500')
+stage    : namespace()
+experiment: namespace(id=42, meta=namespace(author='Dr. X', approved=True))
+"""
+
+    if not output.endswith("\n"):
+        output += "\n"
+
+    assert output == expected