1 files changed, 63 insertions, 0 deletions
diff --git a/test/mitmproxy/test_stateobject.py b/test/mitmproxy/test_stateobject.py
new file mode 100644
index 00000000..b9ffe7ae
--- /dev/null
+++ b/test/mitmproxy/test_stateobject.py
@@ -0,0 +1,63 @@
+from typing import List
+
+from mitmproxy.stateobject import StateObject
+
+
+class Child(StateObject):
+    def __init__(self, x):
+        self.x = x
+
+    _stateobject_attributes = dict(
+        x=int
+    )
+
+    @classmethod
+    def from_state(cls, state):
+        obj = cls(None)
+        obj.set_state(state)
+        return obj
+
+
+class Container(StateObject):
+    def __init__(self):
+        self.child = None
+        self.children = None
+
+    _stateobject_attributes = dict(
+        child=Child,
+        children=List[Child],
+    )
+
+    @classmethod
+    def from_state(cls, state):
+        obj = cls()
+        obj.set_state(state)
+        return obj
+
+
+def test_simple():
+    a = Child(42)
+    b = a.copy()
+    assert b.get_state() == {"x": 42}
+    a.set_state({"x": 44})
+    assert a.x == 44
+    assert b.x == 42
+
+
+def test_container():
+    a = Container()
+    a.child = Child(42)
+    b = a.copy()
+    assert a.child.x == b.child.x
+    b.child.x = 44
+    assert a.child.x != b.child.x
+
+
+def test_container_list():
+    a = Container()
+    a.children = [Child(42), Child(44)]
+    assert a.get_state() == {
+        "child": None,
+        "children": [{"x": 42}, {"x": 44}]
+    }
+    assert len(a.copy().children) == 2