test: test for the actual better clone- and make sure we use the JSON stringify and parse for this since tests are weird

ref: N25B-371

test/pages/visProgPage/visualProgrammingUI/nodes/PhaseNode.test.tsx

@@ -0,0 +1,22 @@
+import { resetFlowStore } from "../../../../test-utils/test-utils";
+import useFlowStore from '../../../../../src/pages/VisProgPage/visualProgrammingUI/VisProgStores';
+import addNode from "../../../../../src/pages/VisProgPage/visualProgrammingUI/utils/AddNode";
+
+
+describe('PhaseNode', () => {
+  beforeEach(() => resetFlowStore());
+
+  it('each created phase gets its own children array (store-level)', () => {
+    addNode("phase", {x:10,y:10})
+    addNode("phase", {x:20,y:20})
+
+    const nodes = useFlowStore.getState().nodes;
+    const p1 = nodes.find((x) => x.id === 'phase-1')!;
+    const p2 = nodes.find((x) => x.id === 'phase-2')!;
+
+    // not the same reference
+    expect(p1.data.children).not.toBe(p2.data.children);
+    // but same initial value
+    expect(p1.data.children).toEqual(p2.data.children);
+  });
+});