🚧 WIP

tests/test_webui.py

@@ -480,13 +480,32 @@ class TestChannelRanges:
         assert ai["range"] == {"min": 0, "max": 32000}
         assert app.node.channel_ranges["AO0.0"] == (400, 2000)
 
-    async def test_default_range_dropped_from_store(self, client, app):
+    async def test_default_range_kept_in_dense_store(self, client, app):
+        # the store is DENSE (FR-10.2.14): a default-equal entry is
+        # materialized like any other — no sparse-override dropping
         r = await client.put("/api/config/channel-ranges", json={
             "channel_ranges": {"AI0.0": {"min": 0, "max": 4095}},  # == default
             "persist": False,
         })
         assert r.status_code == 200
-        assert app.node.channel_ranges == {}   # kept clean
+        assert app.node.channel_ranges["AI0.0"] == (0, 4095)
+        # every analog channel of the layout is present
+        analog = {c for c in app.node.channel_ranges}
+        assert {"AI0.0", "AI0.1", "AO0.0", "AO0.1"} <= analog
+        # and digital codes never are
+        assert not any(c.startswith(("DI", "DO")) for c in analog)
+
+    async def test_dense_store_pruned_on_module_save(self, client, app, tmp_path):
+        app.node_config_path = str(tmp_path / "node.yaml")
+        await client.put("/api/config/channel-ranges", json={
+            "channel_ranges": {"AI0.0": {"min": 0, "max": 32000}}, "persist": False,
+        })
+        r = await client.put("/api/config/modules", json={
+            "modules": ["750-430", "750-530"], "persist": False,
+        })
+        assert r.status_code == 200
+        # no analog modules left -> the range store is empty (pruned)
+        assert app.node.channel_ranges == {}
 
     async def test_range_validation(self, client):
         base = {"persist": False}
@@ -569,6 +588,20 @@ class TestChannelRanges:
         ranges = load_channel_ranges(load_yaml(cfg_file))
         assert ranges == {"AI0.0": (0, 32000)}
 
+    async def test_ranges_yaml_lean_defaults(self, client, app, tmp_path):
+        # dense store, lean YAML: default-equal entries are NOT written
+        cfg_file = tmp_path / "node.yaml"
+        app.node_config_path = str(cfg_file)
+        r = await client.put("/api/config/channel-ranges", json={
+            "channel_ranges": {"AI0.0": {"min": 0, "max": 4095},
+                               "AO0.0": {"min": 0, "max": 32000}},
+            "persist": True,
+        })
+        assert r.status_code == 200
+        text = cfg_file.read_text(encoding="utf-8")
+        assert "AO0.0" in text and "AI0.0" not in text
+        assert app.node.channel_ranges["AI0.0"] == (0, 4095)  # store dense
+
     async def test_ranges_survive_module_save(self, client, app, tmp_path):
         app.node_config_path = str(tmp_path / "node.yaml")
         await client.put("/api/config/channel-ranges", json={