Initial commit

server/tests/test_nickname_uniqueness.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from typing import cast
+
+from websockets.asyncio.server import ServerConnection
+
+from app.server import ClientConnection, SignalingServer
+
+
+def _fake_ws() -> ServerConnection:
+    return cast(ServerConnection, object())
+
+
+def test_nickname_taken_is_case_insensitive() -> None:
+    server = SignalingServer("127.0.0.1", 8765, None, None)
+    first_ws = _fake_ws()
+    second_ws = _fake_ws()
+    server.clients[first_ws] = ClientConnection(websocket=first_ws, id="1", nickname="Jage")
+    server.clients[second_ws] = ClientConnection(websocket=second_ws, id="2", nickname="Alice")
+
+    assert server._is_nickname_taken("jage", exclude_client_id="2")
+    assert server._is_nickname_taken("JAGE", exclude_client_id="2")
+    assert not server._is_nickname_taken("jage", exclude_client_id="1")
+
+
+def test_nickname_key_uses_casefold() -> None:
+    server = SignalingServer("127.0.0.1", 8765, None, None)
+    assert server._nickname_key("Jage") == server._nickname_key("jage")