From f2a781545b636d19eb45fb61a5d9db90ab30be16 Mon Sep 17 00:00:00 2001
From: Rostyslav Tyshko <tyshko.rostyslav@gmail.com>
Date: Mon, 27 Jan 2025 13:44:30 +0100
Subject: [PATCH] add test_transaction_pre_check_fail_mempool_full

---
 sequencer_core/src/lib.rs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/sequencer_core/src/lib.rs b/sequencer_core/src/lib.rs
index 75a4abb..8e20480 100644
--- a/sequencer_core/src/lib.rs
+++ b/sequencer_core/src/lib.rs
@@ -354,5 +354,35 @@ mod tests {
         assert!(result.is_ok());
     }
 
+    #[test]
+    fn test_transaction_pre_check_fail_mempool_full() {
+        let config = SequencerConfig {
+            max_num_tx_in_block: 1,
+            ..setup_sequencer_config()
+        };
+        let mut sequencer = SequencerCore::start_from_config(config);
+
+        common_setup(&mut sequencer);
+
+        let tx = create_dummy_transaction(
+            [2; 32], 
+            vec![[92; 32]],
+            vec![[72; 32]],
+            vec![[82; 32]]
+        );
+        let tx_roots = sequencer.get_tree_roots();
+
+        // Fill the mempool
+        let dummy_tx = TransactionMempool { tx: tx.clone() };
+        sequencer.mempool.push_item(dummy_tx);
+
+        let result = sequencer.transaction_pre_check(&tx, tx_roots);
+
+        assert!(matches!(
+            result,
+            Err(TransactionMalformationErrorKind::MempoolFullForRound { .. })
+        ));
+    }
+
 
 }
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