diff --git a/Cargo.lock b/Cargo.lock
index d3b2a62b90..cfdf3eef5f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "Inflector"
@@ -10383,6 +10383,7 @@ name = "starknet_mempool_p2p_types"
 version = "0.0.0"
 dependencies = [
  "async-trait",
+ "mockall",
  "papyrus_network_types",
  "papyrus_proc_macros",
  "serde",
diff --git a/crates/starknet_mempool/Cargo.toml b/crates/starknet_mempool/Cargo.toml
index efd35caccd..6c692229d9 100644
--- a/crates/starknet_mempool/Cargo.toml
+++ b/crates/starknet_mempool/Cargo.toml
@@ -28,6 +28,7 @@ rstest.workspace = true
 starknet_api = { workspace = true, features = ["testing"] }
 # Enable test utils feature for integration tests.
 starknet_mempool = { workspace = true, features = ["testing"] }
+starknet_mempool_p2p_types = { workspace = true, features = ["testing"] }
 
 [features]
 testing = ["mempool_test_utils", "pretty_assertions", "starknet-types-core"]
diff --git a/crates/starknet_mempool/src/mempool_test.rs b/crates/starknet_mempool/src/mempool_test.rs
index 4a257c5a4b..e9d41d3a23 100644
--- a/crates/starknet_mempool/src/mempool_test.rs
+++ b/crates/starknet_mempool/src/mempool_test.rs
@@ -687,3 +687,61 @@ fn test_update_gas_price_threshold_decreases_threshold() {
         .build();
     expected_mempool_content.assert_eq(&mempool);
 }
+
+#[rstest]
+#[tokio::test]
+async fn test_new_tx_sent_to_p2p(mempool: Mempool) {
+    // add_tx_input! creates an Invoke Transaction
+    let tx_args = add_tx_input!(tx_hash: 1, address: "0x0", tx_nonce: 2, account_nonce: 2);
+    let propagateor_args =
+        AddTransactionArgsWrapper { args: tx_args.clone(), p2p_message_metadata: None };
+    // TODO: use regular conversion once we have a compiler component
+    let rpc_tx = match tx_args.tx {
+        AccountTransaction::Declare(_declare_tx) => {
+            panic!("No implementation for converting DeclareTransaction to an RpcTransaction")
+        }
+        AccountTransaction::DeployAccount(deploy_account_transaction) => {
+            RpcTransaction::DeployAccount(RpcDeployAccountTransaction::V3(
+                deploy_account_transaction.clone().into(),
+            ))
+        }
+        AccountTransaction::Invoke(invoke_transaction) => {
+            RpcTransaction::Invoke(RpcInvokeTransaction::V3(invoke_transaction.clone().into()))
+        }
+    };
+
+    let mut mock_mempool_p2p_propagator_client = MockMempoolP2pPropagatorClient::new();
+    mock_mempool_p2p_propagator_client
+        .expect_add_transaction()
+        .times(1)
+        .with(predicate::eq(rpc_tx))
+        .returning(|_| Ok(()));
+    let mut mempool_wrapper =
+        MempoolCommunicationWrapper::new(mempool, Arc::new(mock_mempool_p2p_propagator_client));
+
+    mempool_wrapper.add_tx(propagateor_args).await.unwrap();
+}
+
+#[rstest]
+#[tokio::test]
+async fn test_propagated_tx_sent_to_p2p(mempool: Mempool) {
+    // add_tx_input! creates an Invoke Transaction
+    let tx_args = add_tx_input!(tx_hash: 2, address: "0x0", tx_nonce: 3, account_nonce: 2);
+    let expected_message_metadata = BroadcastedMessageMetadata::get_test_instance(&mut get_rng());
+    let propagated_args = AddTransactionArgsWrapper {
+        args: tx_args.clone(),
+        p2p_message_metadata: Some(expected_message_metadata.clone()),
+    };
+
+    let mut mock_mempool_p2p_propagator_client = MockMempoolP2pPropagatorClient::new();
+    mock_mempool_p2p_propagator_client
+        .expect_continue_propagation()
+        .times(1)
+        .with(predicate::eq(expected_message_metadata.clone()))
+        .returning(|_| Ok(()));
+
+    let mut mempool_wrapper =
+        MempoolCommunicationWrapper::new(mempool, Arc::new(mock_mempool_p2p_propagator_client));
+
+    mempool_wrapper.add_tx(propagated_args).await.unwrap();
+}
diff --git a/crates/starknet_mempool_p2p_types/Cargo.toml b/crates/starknet_mempool_p2p_types/Cargo.toml
index 352de1ab63..7554957fc9 100644
--- a/crates/starknet_mempool_p2p_types/Cargo.toml
+++ b/crates/starknet_mempool_p2p_types/Cargo.toml
@@ -10,9 +10,16 @@ workspace = true
 
 [dependencies]
 async-trait.workspace = true
+mockall = { workspace = true, optional = true }
 papyrus_network_types.workspace = true
 papyrus_proc_macros.workspace = true
 serde = { workspace = true, features = ["derive"] }
 starknet_api.workspace = true
 starknet_sequencer_infra.workspace = true
 thiserror.workspace = true
+
+[dev-dependencies]
+mockall.workspace = true
+
+[features]
+testing = ["mockall"]
\ No newline at end of file
diff --git a/crates/starknet_mempool_p2p_types/src/communication.rs b/crates/starknet_mempool_p2p_types/src/communication.rs
index 09878fe764..42a9a190d6 100644
--- a/crates/starknet_mempool_p2p_types/src/communication.rs
+++ b/crates/starknet_mempool_p2p_types/src/communication.rs
@@ -19,6 +19,7 @@ use thiserror::Error;
 use crate::errors::MempoolP2pPropagatorError;
 use crate::mempool_p2p_types::MempoolP2pPropagatorResult;
 
+#[cfg_attr(any(feature = "testing", test), mockall::automock)]
 #[async_trait]
 pub trait MempoolP2pPropagatorClient: Send + Sync {
     /// Adds a transaction to be propagated to other peers. This should only be called on a new