booking operations and trains scheduling also allocations

apps/edr-freight-web/backoffice/src/utils/compareSchedulingPriority.test.ts

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+import { describe, expect, it } from "vitest";
+
+import { compareSchedulingPriority } from "./compareSchedulingPriority";
+
+describe("compareSchedulingPriority", () => {
+  it("ranks government above commercial regardless of date gap", () => {
+    const gov = {
+      isGovernment: true,
+      priorityScore: 100,
+      scheduledDate: "2026-06-25T08:00:00.000Z",
+    };
+    const commercial = {
+      isGovernment: false,
+      priorityScore: 50000,
+      scheduledDate: "2026-06-20T08:00:00.000Z",
+    };
+    expect(compareSchedulingPriority(gov, commercial)).toBeLessThan(0);
+  });
+
+  it("sorts by priority score within same tier", () => {
+    const high = { priorityScore: 100, scheduledDate: "2026-06-20T08:00:00.000Z" };
+    const low = { priorityScore: 10, scheduledDate: "2026-06-20T08:00:00.000Z" };
+    expect(compareSchedulingPriority(high, low)).toBeLessThan(0);
+  });
+});