1 files changed, 16 insertions, 0 deletions
diff --git a/tests/test_invalid.py b/tests/test_invalid.py
new file mode 100644
index 0000000..11aa1fd
--- /dev/null
+++ b/tests/test_invalid.py
@@ -0,0 +1,16 @@
+from datetime import time, timezone
+
+import pytest
+
+import tomli_w
+
+
+def test_invalid_type_nested():
+    with pytest.raises(TypeError):
+        tomli_w.dumps({"bytearr": bytearray()})
+
+
+def test_invalid_time():
+    offset_time = time(23, 59, 59, tzinfo=timezone.utc)
+    with pytest.raises(ValueError):
+        tomli_w.dumps({"offset time": offset_time})