add test

integration-tests/src/test_loop/tests/resharding_v3.rs

@@ -50,7 +50,7 @@ const INCREASED_EPOCH_LENGTH: u64 = 8;
 const GC_NUM_EPOCHS_TO_KEEP: u64 = 3;
 
 /// Maximum number of epochs under which the test should finish.
-const TESTLOOP_NUM_EPOCHS_TO_WAIT: u64 = 8;
+const TESTLOOP_NUM_EPOCHS_TO_WAIT: u64 = 10;
 
 /// Default shard layout version used in resharding tests.
 const DEFAULT_SHARD_LAYOUT_VERSION: u64 = 2;
@@ -135,7 +135,7 @@ struct TestReshardingParameters {
 impl TestReshardingParametersBuilder {
     fn build(self) -> TestReshardingParameters {
         // Give enough time for GC to kick in after resharding.
-        assert!(GC_NUM_EPOCHS_TO_KEEP + 2 < TESTLOOP_NUM_EPOCHS_TO_WAIT);
+        assert!(GC_NUM_EPOCHS_TO_KEEP + 3 < TESTLOOP_NUM_EPOCHS_TO_WAIT);
         let epoch_length = self.epoch_length.unwrap_or(DEFAULT_EPOCH_LENGTH);
         let tracked_shard_schedule = self.tracked_shard_schedule.unwrap_or(None);
 
@@ -513,7 +513,7 @@ fn test_resharding_v3_base(params: TestReshardingParameters) {
             resharding_block_hash.set(Some(tip.prev_block_hash));
             epoch_height_after_resharding.set(Some(epoch_height));
             // Assert that we will have a chance for gc to kick in before the test is over.
-            assert!(epoch_height + GC_NUM_EPOCHS_TO_KEEP < TESTLOOP_NUM_EPOCHS_TO_WAIT);
+            assert!(epoch_height + GC_NUM_EPOCHS_TO_KEEP + 1 < TESTLOOP_NUM_EPOCHS_TO_WAIT);
             println!("State after resharding:");
             print_and_assert_shard_accounts(&clients, &tip);
         }
@@ -528,7 +528,7 @@ fn test_resharding_v3_base(params: TestReshardingParameters) {
         }
 
         // Return false if garbage collection window has not passed yet since resharding.
-        if epoch_height <= epoch_height_after_resharding.get().unwrap() + GC_NUM_EPOCHS_TO_KEEP {
+        if epoch_height <= TESTLOOP_NUM_EPOCHS_TO_WAIT {
             return false;
         }
         for loop_action in &params.loop_actions {
@@ -539,7 +539,7 @@ fn test_resharding_v3_base(params: TestReshardingParameters) {
 
     env.test_loop.run_until(
         success_condition,
-        // Give enough time to produce ~TESTLOOP_NUM_EPOCHS_TO_WAIT epochs.
+        // Give enough time to produce TESTLOOP_NUM_EPOCHS_TO_WAIT epochs.
         Duration::seconds((TESTLOOP_NUM_EPOCHS_TO_WAIT * params.epoch_length) as i64),
     );
     let client = &env.test_loop.data.get(&client_handles[client_index]).client;
@@ -621,6 +621,40 @@ fn test_resharding_v3_do_not_track_children_after_resharding() {
     );
 }
 
+#[test]
+fn test_resharding_v3_stop_track_child_for_2_epochs() {
+    // Track parent shard before resharding, and a child shard after resharding.
+    // Then do not track the child for 2 epochs and start tracking it again.
+    let account_in_stable_shard: AccountId = "account0".parse().unwrap();
+    let split_boundary_account: AccountId = NEW_BOUNDARY_ACCOUNT.parse().unwrap();
+    let base_shard_layout = get_base_shard_layout(DEFAULT_SHARD_LAYOUT_VERSION);
+    let new_shard_layout =
+        ShardLayout::derive_shard_layout(&base_shard_layout, split_boundary_account.clone());
+    let parent_shard_id = base_shard_layout.account_id_to_shard_id(&split_boundary_account);
+    let child_shard_id = new_shard_layout.account_id_to_shard_id(&split_boundary_account);
+    let unrelated_shard_id = new_shard_layout.account_id_to_shard_id(&account_in_stable_shard);
+
+    let tracked_shard_sequence = vec![
+        parent_shard_id,
+        parent_shard_id,
+        child_shard_id,
+        unrelated_shard_id,
+        unrelated_shard_id,
+        child_shard_id,
+    ];
+    let num_clients = 8;
+    let tracked_shard_schedule = TrackedShardSchedule {
+        client_index: (num_clients - 1) as usize,
+        schedule: shard_sequence_to_schedule(tracked_shard_sequence),
+    };
+    test_resharding_v3_base(
+        TestReshardingParametersBuilder::default()
+            .num_clients(num_clients)
+            .tracked_shard_schedule(Some(tracked_shard_schedule))
+            .build(),
+    );
+}
+
 #[test]
 fn test_resharding_v3_track_all_shards() {
     test_resharding_v3_base(