Delete populated circuit groups safely

tests/circuit-group-numbering.test.ts

@@ -19,11 +19,13 @@ import {
   buildCircuitGroupMovePlan,
   buildCircuitGroupRenumberPlan,
   buildCircuitGroupReorderAssignments,
+  buildCircuitGroupSubtreeSnapshot,
   buildNewCircuitGroupSnapshot,
   canMoveCircuitToGroup,
   canRenumberCircuitGroups,
   canDeleteCircuitGroup,
   renameCircuitGroupSnapshot,
+  summarizeCircuitGroupSubtree,
 } from "../src/frontend/utils/circuit-group-editing.js";
 
 describe("circuit group numbering", () => {
@@ -294,6 +296,93 @@ describe("circuit group numbering", () => {
     );
   });
 
+  it("captures a complete populated group for warned deletion", () => {
+    const section = {
+      ...groupSection("lighting-1", "lighting", 1, 10),
+      components: [
+        {
+          id: "rcd-1",
+          circuitListId: "list-1",
+          sectionId: "lighting-1",
+          equipmentIdentifier: "-1Q1.0",
+          name: "Gruppen-FI",
+          role: "group_residual_current_protection" as const,
+          placement: "group" as const,
+          sortOrder: 10,
+          protectionDevice: {
+            type: "FI" as const,
+            ratedCurrentA: 40,
+            rcdType: "A" as const,
+            ratedResidualCurrentMa: 30,
+          },
+        },
+      ],
+      circuits: [
+        {
+          id: "circuit-1",
+          circuitListId: "list-1",
+          sectionId: "lighting-1",
+          equipmentIdentifier: "-1F1.1",
+          displayName: "Flurlicht",
+          sortOrder: 10,
+          voltage: 230,
+          isReserve: false,
+          circuitTotalPower: 0.1,
+          protectionDevice: {
+            type: "LS" as const,
+            ratedCurrentA: 10,
+            tripCharacteristic: "B" as const,
+          },
+          deviceRows: [
+            {
+              id: "row-1",
+              linkedProjectDeviceId: "device-1",
+              sortOrder: 10,
+              name: "Leuchte",
+              displayName: "Leuchte Flur",
+              phaseType: "single_phase",
+              quantity: 2,
+              powerPerUnit: 0.05,
+              simultaneityFactor: 1,
+              cosPhi: 0.95,
+              overriddenFields: "[\"displayName\"]",
+              rowTotalPower: 0.1,
+            },
+          ],
+        },
+      ],
+    };
+    const snapshot = buildCircuitGroupSubtreeSnapshot(
+      section,
+      "list-1"
+    );
+
+    assert.deepEqual(summarizeCircuitGroupSubtree(snapshot), {
+      circuitCount: 1,
+      deviceRowCount: 1,
+      protectionComponentCount: 1,
+    });
+    assert.equal(
+      snapshot.circuits[0].circuit.deviceRows[0]
+        .linkedProjectDeviceId,
+      "device-1"
+    );
+    assert.equal(
+      snapshot.circuits[0].circuit.deviceRows[0]
+        .overriddenFields,
+      "[\"displayName\"]"
+    );
+    assert.deepEqual(snapshot.circuits[0].protectionDevice, {
+      circuitId: "circuit-1",
+      type: "LS",
+      ratedCurrentA: 10,
+      fuseUtilizationCategory: null,
+      tripCharacteristic: "B",
+      rcdType: null,
+      ratedResidualCurrentMa: null,
+    });
+  });
+
   it("formats the agreed identifiers including the leading hyphen", () => {
     assert.equal(
       formatGroupUpstreamProtectionIdentifier("lighting", 1),