test: added socket base tests

test/unit/test_socket_base.py

@@ -0,0 +1,55 @@
+import mock
+import zmq
+from robot_interface.endpoints.socket_base import SocketBase
+
+
+def test_close_covers_both_branches():
+    """
+    Exercise both possible paths inside SocketBase.close():
+    - when no socket exists (should just return),
+    - when a socket object is present (its close() method should be called).
+    """
+    sb = SocketBase("x")
+
+    # First check the case where socket is None. Nothing should happen here.
+    sb.close()
+
+    # Now simulate a real socket so the close() call is triggered.
+    fake_socket = mock.Mock()
+    sb.socket = fake_socket
+    sb.close()
+
+    fake_socket.close.assert_called_once()
+
+
+def test_create_socket_and_endpoint_description_full_coverage():
+    """
+    Test the less-commonly used branch of create_socket() where bind=False.
+    This covers:
+      - the loop that sets socket options,
+      - the connect() path,
+      - the logic in endpoint_description() that inverts self.bound.
+    """
+    fake_context = mock.Mock()
+    fake_socket = mock.Mock()
+
+    # The context should hand back our fake socket object.
+    fake_context.socket.return_value = fake_socket
+
+    sb = SocketBase("id")
+
+    # Calling create_socket with bind=False forces the connect() code path.
+    sb.create_socket(
+        zmq_context=fake_context,
+        socket_type=zmq.SUB,
+        port=9999,
+        options=[(zmq.CONFLATE, 1)],  # one option is enough to hit the loop
+        bind=False,
+    )
+
+    fake_socket.setsockopt.assert_called_once_with(zmq.CONFLATE, 1)
+    fake_socket.connect.assert_called_once_with("tcp://localhost:9999")
+
+    # Check that endpoint_description reflects bound=False -> "bind": True
+    desc = sb.endpoint_description()
+    assert desc == {"id": "id", "port": 9999, "bind": True}