add dispute functionality for contract duty and implement collection dates

apps/edr-freight-api/src/modules/contracts/do-collection-dates.spec.ts

@@ -0,0 +1,46 @@
+import { BadRequestException } from '@nestjs/common';
+
+import { assertDoCollectionDates } from './contract-clearance.util';
+
+describe('assertDoCollectionDates', () => {
+  it('requires both dates', () => {
+    expect(() => assertDoCollectionDates(undefined)).toThrow(BadRequestException);
+    expect(() =>
+      assertDoCollectionDates({ vesselArrivalDate: '2026-07-01' }),
+    ).toThrow(/DO collected date is required/);
+    expect(() =>
+      assertDoCollectionDates({ doCollectedDate: '2026-07-01' }),
+    ).toThrow(/Vessel arrival date is required/);
+    // Whitespace is not a date.
+    expect(() =>
+      assertDoCollectionDates({ vesselArrivalDate: '  ', doCollectedDate: '  ' }),
+    ).toThrow(BadRequestException);
+  });
+
+  it('rejects a DO collected before the vessel arrived', () => {
+    expect(() =>
+      assertDoCollectionDates({
+        vesselArrivalDate: '2026-07-10',
+        doCollectedDate: '2026-07-09',
+      }),
+    ).toThrow(/cannot be earlier than the vessel arrival date/);
+  });
+
+  it('normalizes an ISO datetime down to its date part', () => {
+    expect(
+      assertDoCollectionDates({
+        vesselArrivalDate: '2026-07-10T21:00:00.000Z',
+        doCollectedDate: '2026-07-10T05:00:00.000Z',
+      }),
+    ).toEqual({ vesselArrivalDate: '2026-07-10', doCollectedDate: '2026-07-10' });
+  });
+
+  it('rejects a malformed date', () => {
+    expect(() =>
+      assertDoCollectionDates({
+        vesselArrivalDate: '10/07/2026',
+        doCollectedDate: '2026-07-10',
+      }),
+    ).toThrow(/not a valid date/);
+  });
+});