Fixed shutdown for server and client in tests

CHANGES.md

@@ -6,6 +6,11 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 
+#### 2026-01-13
+
+* `./tests/base.py`: Added close method for `MockClient` to properly shutdown the client.
+* `./tests/test_managesieve.py`: Fixed `tearDown` methods to shutdown the client and the server properly.
+
 #### 2025-12-05
 
 * `./pysieved/main.py`: Added file-based logging with `WatchedFileHandler` and removed syslog usage.

tests/base.py

@@ -99,6 +99,15 @@ def __init__(self, server: Server) -> None:
             self.conn.settimeout(self._default_timeout)
             self.conn.connect((address, port))
 
+    def close(self) -> None:
+        """Terminate client."""
+
+        try:
+            self.conn.shutdown(socket.SHUT_RDWR)
+            self.conn.close()
+        except Exception:
+            pass
+
     def get_full_response(self) -> bytes:
         """Read all the received lines until the server stops responding until the timeout."""
 
@@ -110,6 +119,9 @@ def get_full_response(self) -> bytes:
             except Exception:
                 break
 
+            if not part:
+                break
+
             full_response += part
 
         return full_response

tests/test_managesieve.py

@@ -43,7 +43,13 @@ def setUp(self) -> None:
         self.password = "12345"
 
     def tearDown(self) -> None:
+        try:
+            self.client.logout()
+        finally:
+            self.client.close()
+
         self.server.shutdown()
+        self.server.server_close()
         self._t.join()
 
         super().tearDown()
@@ -110,7 +116,13 @@ def tearDownClass(cls) -> None:
         # if not removed:
         #     warnings.warn(f"Could not remove filter '{cls.filter_name}'.")
 
+        try:
+            cls.client.logout()
+        finally:
+            cls.client.close()
+
         cls.server.shutdown()
+        cls.server.server_close()
         cls._t.join()
 
         super().tearDownClass()