First upload, 18 controller version

tests/test_device_assignment.py

@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+import unittest
+
+from app.config.device_assignment import assign_device_to_tile, find_tile_for_device
+from app.config.models import InfinityMirrorConfig, LogicalDisplayConfig, TileConfig
+from app.network.wled import DiscoveredWledDevice
+
+
+class DeviceAssignmentTests(unittest.TestCase):
+    def _config(self) -> InfinityMirrorConfig:
+        return InfinityMirrorConfig(
+            logical_display=LogicalDisplayConfig(rows=1, cols=2),
+            tiles=[
+                TileConfig(tile_id="r1c1", row=1, col=1, controller_ip="192.0.2.10", controller_mac="AA:BB:CC:DD:EE:01"),
+                TileConfig(tile_id="r1c2", row=1, col=2, controller_ip="192.0.2.11", controller_mac="AA:BB:CC:DD:EE:02"),
+            ],
+        )
+
+    def test_find_tile_prefers_mac_match_over_stale_ip(self) -> None:
+        config = self._config()
+        device = DiscoveredWledDevice(ip_address="192.0.2.42", mac_address="AA:BB:CC:DD:EE:01")
+
+        matched = find_tile_for_device(config, device)
+
+        self.assertIsNotNone(matched)
+        self.assertEqual(matched.tile_id, "r1c1")
+
+    def test_assign_device_moves_previous_assignment_and_overwrites_target(self) -> None:
+        config = self._config()
+        device = DiscoveredWledDevice(
+            ip_address="192.0.2.42",
+            hostname="tile-42.local",
+            instance_name="Tile 42",
+            mac_address="AA:BB:CC:DD:EE:01",
+        )
+
+        assign_device_to_tile(config, device, "r1c2")
+
+        source_tile = config.tile_lookup()["r1c1"]
+        target_tile = config.tile_lookup()["r1c2"]
+        self.assertEqual(source_tile.controller_ip, "")
+        self.assertEqual(source_tile.controller_mac, "")
+        self.assertEqual(target_tile.controller_ip, "192.0.2.42")
+        self.assertEqual(target_tile.controller_host, "tile-42.local")
+        self.assertEqual(target_tile.controller_name, "Tile 42")
+        self.assertEqual(target_tile.controller_mac, "AA:BB:CC:DD:EE:01")
+
+
+if __name__ == "__main__":
+    unittest.main()