Format scheduled task intervals

test/background-tasks-page.test.js

@@ -91,4 +91,44 @@ test('background task pages opt into 24-hour timestamps, confirm clearing tasks,
   assert.match(queueDateSearchHtml, /Example task/);
   assert.match(scheduledHtml, /data-local-datetime-format="24h"/);
   assert.match(scheduledHtml, /Player:\s+Player Beta/);
+});
+
+test('scheduled task interval labels use the largest exact unit while sorting stays numeric', () => {
+  const scheduledHtml = renderBackgroundTasksScheduledPage(
+    {
+      recurringTasks: [
+        {
+          title: 'Hourly task',
+          key: 'hourly',
+          intervalMs: 7200000,
+          metadata: {}
+        },
+        {
+          title: 'Second task',
+          key: 'seconds',
+          intervalMs: 3000,
+          metadata: {}
+        },
+        {
+          title: 'Minute task',
+          key: 'minutes',
+          intervalMs: 60000,
+          metadata: {}
+        }
+      ],
+      sort: 'interval',
+      direction: 'asc',
+      summary: { counts: {}, total: 3, activeCount: 0, scheduledCount: 3 }
+    },
+    '',
+    {
+      permissions: ['scheduled-tasks.allow']
+    }
+  );
+
+  assert.match(scheduledHtml, /Every 3 seconds/);
+  assert.match(scheduledHtml, /Every minute/);
+  assert.match(scheduledHtml, /Every 2 hours/);
+  assert.ok(scheduledHtml.indexOf('Every 3 seconds') < scheduledHtml.indexOf('Every minute'));
+  assert.ok(scheduledHtml.indexOf('Every minute') < scheduledHtml.indexOf('Every 2 hours'));
 });