Fas 2 steg 5: Scan-to-scan-diff + konfliktlösning, samt buggfix depleted-transaktion i reconciliation

2026-08-07 01:30:31 +07:00
parent 218bc44d08
commit 4a4f448e1c
26 changed files with 10590 additions and 13 deletions
@@ -0,0 +1,69 @@
+import { describe, expect, it } from "vitest";
+import { diffScans } from "../src/scan-diff.js";
+
+const PINNED = new Date("2026-08-07T00:00:00.000Z");
+
+function item(overrides: Partial<Parameters<typeof diffScans>[0][number]> = {}) {
+  return {
+    id: "prev-1",
+    displayName: "Mjölk",
+    quantity: 1,
+    unit: "LITER",
+    storageLocationId: "loc-fridge",
+    ...overrides,
+  };
+}
+
+function obs(overrides: Partial<Parameters<typeof diffScans>[1][number]> = {}) {
+  return {
+    displayName: "Mjölk",
+    quantity: 1,
+    unit: "LITER",
+    storageLocationId: "loc-fridge",
+    observationConfidence: 0.95,
+    ...overrides,
+  };
+}
+
+describe("diffScans", () => {
+  it("marks identical items unchanged", () => {
+    const result = diffScans([item()], [obs()], PINNED);
+    expect(result.rows).toHaveLength(1);
+    expect(result.rows[0]?.kind).toBe("unchanged");
+    expect(result.pendingVanishedIds).toEqual([]);
+  });
+
+  it("detects new item", () => {
+    const result = diffScans([], [obs({ displayName: "Ost" })], PINNED);
+    expect(result.rows).toHaveLength(1);
+    expect(result.rows[0]?.kind).toBe("new_item");
+  });
+
+  it("detects vanished item as proposal only", () => {
+    const result = diffScans([item()], [], PINNED);
+    expect(result.rows).toHaveLength(1);
+    expect(result.rows[0]?.kind).toBe("vanished");
+    expect(result.pendingVanishedIds).toEqual(["prev-1"]);
+  });
+
+  it("detects quantity change", () => {
+    const result = diffScans([item()], [obs({ quantity: 0.5 })], PINNED);
+    expect(result.rows[0]?.kind).toBe("quantity_changed");
+    expect(result.rows[0]?.previousQuantity).toBe(1);
+    expect(result.rows[0]?.newQuantity).toBe(0.5);
+  });
+
+  it("detects moved item", () => {
+    const result = diffScans([item()], [obs({ storageLocationId: "loc-freezer" })], PINNED);
+    expect(result.rows[0]?.kind).toBe("moved");
+  });
+
+  it("sorts changes before unchanged", () => {
+    const result = diffScans(
+      [item({ id: "a", displayName: "A" }), item({ id: "b", displayName: "B" })],
+      [obs({ displayName: "A", quantity: 0.5 }), obs({ displayName: "B" })],
+      PINNED,
+    );
+    expect(result.rows.map((r) => r.kind)).toEqual(["quantity_changed", "unchanged"]);
+  });
+});