[Port / PortList] raise PortError on missing port name

masque/test/test_ports.py

@@ -70,6 +70,25 @@ def test_port_list_rename() -> None:
     assert "B" in pl.ports
 
 
+def test_port_list_rename_missing_port_raises() -> None:
+    class MyPorts(PortList):
+        def __init__(self) -> None:
+            self._ports = {"A": Port((0, 0), 0)}
+
+        @property
+        def ports(self) -> dict[str, Port]:
+            return self._ports
+
+        @ports.setter
+        def ports(self, val: dict[str, Port]) -> None:
+            self._ports = val
+
+    pl = MyPorts()
+    with pytest.raises(PortError, match="Ports to rename were not found"):
+        pl.rename_ports({"missing": "B"})
+    assert set(pl.ports) == {"A"}
+
+
 def test_port_list_plugged() -> None:
     class MyPorts(PortList):
         def __init__(self) -> None:
@@ -88,6 +107,25 @@ def test_port_list_plugged() -> None:
     assert not pl.ports  # Both should be removed
 
 
+def test_port_list_plugged_empty_raises() -> None:
+    class MyPorts(PortList):
+        def __init__(self) -> None:
+            self._ports = {"A": Port((10, 10), 0), "B": Port((10, 10), pi)}
+
+        @property
+        def ports(self) -> dict[str, Port]:
+            return self._ports
+
+        @ports.setter
+        def ports(self, val: dict[str, Port]) -> None:
+            self._ports = val
+
+    pl = MyPorts()
+    with pytest.raises(PortError, match="Must provide at least one port connection"):
+        pl.plugged({})
+    assert set(pl.ports) == {"A", "B"}
+
+
 def test_port_list_plugged_mismatch() -> None:
     class MyPorts(PortList):
         def __init__(self) -> None: