1 files changed, 27 insertions, 0 deletions
diff --git a/test/netlib/test_utils.py b/test/netlib/test_utils.py
index b096e5bc..fcb63eb2 100644
--- a/test/netlib/test_utils.py
+++ b/test/netlib/test_utils.py
@@ -139,3 +139,30 @@ def test_parse_content_type():
 
     v = p("text/html; charset=UTF-8")
     assert v == ('text', 'html', {'charset': 'UTF-8'})
+
+
+class SerializableDummy(utils.Serializable):
+    def __init__(self, i):
+        self.i = i
+
+    def get_state(self):
+        return self.i
+
+    def set_state(self, i):
+        self.i = i
+
+    def from_state(self, state):
+        return type(self)(state)
+
+
+class TestSerializable:
+
+    def test_copy(self):
+        a = SerializableDummy(42)
+        assert a.i == 42
+        b = a.copy()
+        assert b.i == 42
+
+        a.set_state(1)
+        assert a.i == 1
+        assert b.i == 42