use smaller DefaultPendingCooldown for fast-blocks

pallets/subtensor/src/lib.rs

@@ -728,6 +728,10 @@ pub mod pallet {
     #[pallet::type_value]
     /// Default value for applying pending items (e.g. childkeys).
     pub fn DefaultPendingCooldown<T: Config>() -> u64 {
+        if cfg!(feature = "fast-blocks") {
+            return 15;
+        }
+
         7_200
     }
 

pallets/subtensor/src/tests/children.rs

@@ -3949,3 +3949,44 @@ fn test_dividend_distribution_with_children_same_coldkey_owner() {
         );
     });
 }
+
+#[test]
+fn test_pending_cooldown_one_day() {
+    let curr_block = 1;
+
+    let expected_cooldown = if cfg!(feature = "fast-blocks") {
+        15
+    } else {
+        7_200
+    };
+
+    new_test_ext(curr_block).execute_with(|| {
+        let coldkey = U256::from(1);
+        let hotkey = U256::from(2);
+        let child1 = U256::from(3);
+        let child2 = U256::from(4);
+        let netuid: u16 = 1;
+        let proportion1: u64 = 1000;
+        let proportion2: u64 = 2000;
+
+        // Add network and register hotkey
+        add_network(netuid, 13, 0);
+        register_ok_neuron(netuid, hotkey, coldkey, 0);
+
+        // Set multiple children
+        mock_schedule_children(
+            &coldkey,
+            &hotkey,
+            netuid,
+            &[(proportion1, child1), (proportion2, child2)],
+        );
+
+        // Verify pending map
+        let pending_children = PendingChildKeys::<Test>::get(netuid, hotkey);
+        assert_eq!(
+            pending_children.0,
+            vec![(proportion1, child1), (proportion2, child2)]
+        );
+        assert_eq!(pending_children.1, curr_block + expected_cooldown);
+    });
+}