Improve logging of endorsements expirations

ts/test-node/util/groupSendEndorsements_test.ts

@@ -0,0 +1,46 @@
+// Copyright 2024 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import assert from 'node:assert/strict';
+import { isValidGroupSendEndorsementsExpiration } from '../../util/groupSendEndorsements';
+import { DAY, HOUR, SECOND } from '../../util/durations';
+
+describe('groupSendEndorsements', () => {
+  describe('isValidGroupSendEndorsementsExpiration', () => {
+    function validateDistance(distance: number) {
+      const expiration = Date.now() + distance;
+      return isValidGroupSendEndorsementsExpiration(expiration);
+    }
+
+    function checkValid(label: string, distance: number) {
+      it(label, () => {
+        const actual = validateDistance(distance);
+        assert.equal(actual.valid, true);
+        assert.equal(actual.reason, undefined);
+      });
+    }
+
+    function checkInvalid(label: string, distance: number, reason: RegExp) {
+      it(label, () => {
+        const actual = validateDistance(distance);
+        assert.equal(actual.valid, false);
+        assert.match(actual.reason, reason);
+      });
+    }
+
+    const TWO_HOURS = HOUR * 2;
+    const TWO_DAYS = DAY * 2;
+
+    checkInvalid('2d ago', -TWO_DAYS, /already expired/);
+    checkInvalid('2h ago', -TWO_HOURS, /already expired/);
+    checkInvalid('1s ago', -SECOND, /already expired/);
+    checkInvalid('now', 0, /already expired/);
+    checkInvalid('in 1s', SECOND, /expires soon/);
+    checkInvalid('in <2h', TWO_HOURS - SECOND, /expires soon/);
+    checkInvalid('in 2h', TWO_HOURS, /expires soon/);
+    checkValid('in >2h', TWO_HOURS + SECOND);
+    checkValid('in <2d', TWO_DAYS - SECOND);
+    checkInvalid('in 2d', TWO_DAYS, /expires too far in future/);
+    checkInvalid('in >2d', TWO_DAYS + SECOND, /expires too far in future/);
+  });
+});