diff --git a/crates/apollo_integration_tests/tests/bootstrap_declare.rs b/crates/apollo_integration_tests/tests/bootstrap_declare.rs
index a65ce104c7f..79c4288dd2e 100644
--- a/crates/apollo_integration_tests/tests/bootstrap_declare.rs
+++ b/crates/apollo_integration_tests/tests/bootstrap_declare.rs
@@ -6,12 +6,12 @@ use crate::common::{end_to_end_flow, test_single_tx, EndToEndFlowArgs, TestScena
 
 mod common;
 
-fn create_bootstrap_declare_scenario() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_bootstrap_declare_scenario() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: |_| vec![generate_bootstrap_declare()],
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: test_single_tx,
-    }]
+    }
 }
 
 /// Bootstrap declare txs are unique: they are sent from a special address and do not increment its
diff --git a/crates/apollo_integration_tests/tests/common/mod.rs b/crates/apollo_integration_tests/tests/common/mod.rs
index 215e31e85e4..d643e68a94a 100644
--- a/crates/apollo_integration_tests/tests/common/mod.rs
+++ b/crates/apollo_integration_tests/tests/common/mod.rs
@@ -29,7 +29,7 @@ use tracing::info;
 
 pub struct EndToEndFlowArgs {
     pub test_identifier: TestIdentifier,
-    pub test_blocks_scenarios: Vec<TestScenario>,
+    pub test_scenario: TestScenario,
     pub block_max_capacity_gas: GasAmount, // Used to max both sierra and proving gas.
     pub expecting_full_blocks: bool,
     pub expecting_reverted_transactions: bool,
@@ -39,12 +39,12 @@ pub struct EndToEndFlowArgs {
 impl EndToEndFlowArgs {
     pub fn new(
         test_identifier: TestIdentifier,
-        test_blocks_scenarios: Vec<TestScenario>,
+        test_scenario: TestScenario,
         block_max_capacity_gas: GasAmount,
     ) -> Self {
         Self {
             test_identifier,
-            test_blocks_scenarios,
+            test_scenario,
             block_max_capacity_gas,
             expecting_full_blocks: false,
             expecting_reverted_transactions: false,
@@ -71,7 +71,7 @@ impl EndToEndFlowArgs {
 pub async fn end_to_end_flow(args: EndToEndFlowArgs) {
     let EndToEndFlowArgs {
         test_identifier,
-        test_blocks_scenarios,
+        test_scenario,
         block_max_capacity_gas,
         expecting_full_blocks,
         expecting_reverted_transactions,
@@ -114,58 +114,54 @@ pub async fn end_to_end_flow(args: EndToEndFlowArgs) {
     let mut total_expected_batched_txs_count = 0;
 
     // Build multiple heights to ensure heights are committed.
-    for (
-        i,
-        TestScenario { create_rpc_txs_fn, create_l1_to_l2_messages_args_fn, test_tx_hashes_fn },
-    ) in test_blocks_scenarios.into_iter().enumerate()
-    {
-        info!("Starting scenario {i}.");
-        // Create and send transactions.
-        // TODO(Arni): move send messages to l2 into [run_test_scenario].
-        let l1_handlers = create_l1_to_l2_messages_args_fn(&mut tx_generator);
-        mock_running_system.send_messages_to_l2(&l1_handlers).await;
-
-        // Run the test scenario and get the expected batched tx hashes of the current scenario.
-        let expected_batched_tx_hashes = run_test_scenario(
-            &mut tx_generator,
-            create_rpc_txs_fn,
-            l1_handlers,
-            &mut send_rpc_tx_fn,
-            test_tx_hashes_fn,
-            &chain_id,
-        )
-        .await;
-
-        // Each sequencer increases the same BATCHED_TRANSACTIONS metric because they are running
-        // in the same process in this test.
-        total_expected_batched_txs_count += NUM_OF_SEQUENCERS * expected_batched_tx_hashes.len();
-        let mut current_batched_txs_count = 0;
-
-        tokio::time::timeout(TEST_SCENARIO_TIMEOUT, async {
-            loop {
-                info!(
-                    "Waiting for more txs to be batched in a block. Expected batched txs: \
-                     {total_expected_batched_txs_count}, Currently batched txs: \
-                     {current_batched_txs_count}"
-                );
-
-                current_batched_txs_count = get_total_batched_txs_count(&global_recorder_handle);
-                if current_batched_txs_count == total_expected_batched_txs_count {
-                    break;
-                }
-
-                tokio::time::sleep(Duration::from_millis(2000)).await;
+    let TestScenario { create_rpc_txs_fn, create_l1_to_l2_messages_args_fn, test_tx_hashes_fn } =
+        test_scenario;
+
+    // Create and send transactions.
+    // TODO(Arni): move send messages to l2 into [run_test_scenario].
+    let l1_handlers = create_l1_to_l2_messages_args_fn(&mut tx_generator);
+    mock_running_system.send_messages_to_l2(&l1_handlers).await;
+
+    // Run the test scenario and get the expected batched tx hashes of the current scenario.
+    let expected_batched_tx_hashes = run_test_scenario(
+        &mut tx_generator,
+        create_rpc_txs_fn,
+        l1_handlers,
+        &mut send_rpc_tx_fn,
+        test_tx_hashes_fn,
+        &chain_id,
+    )
+    .await;
+
+    // Each sequencer increases the same BATCHED_TRANSACTIONS metric because they are running
+    // in the same process in this test.
+    total_expected_batched_txs_count += NUM_OF_SEQUENCERS * expected_batched_tx_hashes.len();
+    let mut current_batched_txs_count = 0;
+
+    tokio::time::timeout(TEST_SCENARIO_TIMEOUT, async {
+        loop {
+            info!(
+                "Waiting for more txs to be batched in a block. Expected batched txs: \
+                 {total_expected_batched_txs_count}, Currently batched txs: \
+                 {current_batched_txs_count}"
+            );
+
+            current_batched_txs_count = get_total_batched_txs_count(&global_recorder_handle);
+            if current_batched_txs_count == total_expected_batched_txs_count {
+                break;
             }
-        })
-        .await
-        .unwrap_or_else(|_| {
-            panic!(
-                "Scenario {i}: Expected transactions should be included in a block by now, \
-                 Expected amount of batched txs: {total_expected_batched_txs_count}, Currently \
-                 amount of batched txs: {current_batched_txs_count}"
-            )
-        });
-    }
+
+            tokio::time::sleep(Duration::from_millis(2000)).await;
+        }
+    })
+    .await
+    .unwrap_or_else(|_| {
+        panic!(
+            "Expected transactions should be included in a block by now, Expected amount of \
+             batched txs: {total_expected_batched_txs_count}, Currently amount of batched txs: \
+             {current_batched_txs_count}"
+        )
+    });
 
     assert_full_blocks_flow(&global_recorder_handle, expecting_full_blocks);
     assert_on_number_of_reverted_transactions_flow(
diff --git a/crates/apollo_integration_tests/tests/declare_tx_flow_test.rs b/crates/apollo_integration_tests/tests/declare_tx_flow_test.rs
index f15fb286033..1eb7db7b1ac 100644
--- a/crates/apollo_integration_tests/tests/declare_tx_flow_test.rs
+++ b/crates/apollo_integration_tests/tests/declare_tx_flow_test.rs
@@ -20,12 +20,12 @@ async fn declare_tx_flow() {
     .await
 }
 
-fn create_test_scenarios() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_test_scenarios() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: create_declare_tx,
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: test_single_tx,
-    }]
+    }
 }
 
 fn create_declare_tx(tx_generator: &mut MultiAccountTransactionGenerator) -> Vec<RpcTransaction> {
diff --git a/crates/apollo_integration_tests/tests/deploy_account_and_invoke_flow_test.rs b/crates/apollo_integration_tests/tests/deploy_account_and_invoke_flow_test.rs
index 80c9b00012e..e20081bf939 100644
--- a/crates/apollo_integration_tests/tests/deploy_account_and_invoke_flow_test.rs
+++ b/crates/apollo_integration_tests/tests/deploy_account_and_invoke_flow_test.rs
@@ -23,12 +23,12 @@ async fn deploy_account_and_invoke_flow() {
     .await
 }
 
-fn create_test_scenarios() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_test_scenarios() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: deploy_account_and_invoke,
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: |tx_hashes| validate_tx_count(tx_hashes, 2),
-    }]
+    }
 }
 
 /// Generates a deploy account transaction followed by an invoke transaction from the same deployed
diff --git a/crates/apollo_integration_tests/tests/funding_txs_flow_test.rs b/crates/apollo_integration_tests/tests/funding_txs_flow_test.rs
index 8d5c10e5ff3..e9e9394b66e 100644
--- a/crates/apollo_integration_tests/tests/funding_txs_flow_test.rs
+++ b/crates/apollo_integration_tests/tests/funding_txs_flow_test.rs
@@ -20,12 +20,12 @@ async fn funding_txs_flow() {
     .await
 }
 
-fn create_test_scenarios() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_test_scenarios() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: create_funding_txs,
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: test_single_tx,
-    }]
+    }
 }
 
 fn create_funding_txs(tx_generator: &mut MultiAccountTransactionGenerator) -> Vec<RpcTransaction> {
diff --git a/crates/apollo_integration_tests/tests/l1_to_l2_message_flow_test.rs b/crates/apollo_integration_tests/tests/l1_to_l2_message_flow_test.rs
index 5adb0fa83d4..ffb549e592a 100644
--- a/crates/apollo_integration_tests/tests/l1_to_l2_message_flow_test.rs
+++ b/crates/apollo_integration_tests/tests/l1_to_l2_message_flow_test.rs
@@ -20,12 +20,12 @@ async fn l1_to_l2_message_flow() {
     .await
 }
 
-fn create_test_scenarios() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_test_scenarios() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: |_| vec![],
         create_l1_to_l2_messages_args_fn: |tx_generator| {
             create_l1_to_l2_messages_args(tx_generator, 1, false)
         },
         test_tx_hashes_fn: test_single_tx,
-    }]
+    }
 }
diff --git a/crates/apollo_integration_tests/tests/multiple_account_txs_flow_test.rs b/crates/apollo_integration_tests/tests/multiple_account_txs_flow_test.rs
index 3426d8cec95..25a82856a65 100644
--- a/crates/apollo_integration_tests/tests/multiple_account_txs_flow_test.rs
+++ b/crates/apollo_integration_tests/tests/multiple_account_txs_flow_test.rs
@@ -21,12 +21,12 @@ async fn multiple_account_txs_flow() {
     .await
 }
 
-fn create_test_scenarios() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_test_scenarios() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: create_multiple_account_txs,
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: test_multiple_account_txs,
-    }]
+    }
 }
 
 fn create_multiple_account_txs(
diff --git a/crates/apollo_integration_tests/tests/reverted_l1_handler_tx_flow_test.rs b/crates/apollo_integration_tests/tests/reverted_l1_handler_tx_flow_test.rs
index c0251d2a70d..06bc906bb65 100644
--- a/crates/apollo_integration_tests/tests/reverted_l1_handler_tx_flow_test.rs
+++ b/crates/apollo_integration_tests/tests/reverted_l1_handler_tx_flow_test.rs
@@ -22,12 +22,12 @@ async fn reverted_l1_handler_tx_flow() {
     .await
 }
 
-fn create_test_scenarios() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_test_scenarios() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: |_| vec![],
         create_l1_to_l2_messages_args_fn: create_l1_to_l2_reverted_message_args,
         test_tx_hashes_fn: test_single_tx,
-    }]
+    }
 }
 
 fn create_l1_to_l2_reverted_message_args(
diff --git a/crates/apollo_integration_tests/tests/test_custom_cairo0_txs.rs b/crates/apollo_integration_tests/tests/test_custom_cairo0_txs.rs
index 08afd2a3144..f5f174d58e8 100644
--- a/crates/apollo_integration_tests/tests/test_custom_cairo0_txs.rs
+++ b/crates/apollo_integration_tests/tests/test_custom_cairo0_txs.rs
@@ -31,12 +31,12 @@ async fn custom_cairo0_txs() {
     .await
 }
 
-fn create_custom_cairo0_txs_scenario() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_custom_cairo0_txs_scenario() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: create_custom_cairo0_test_txs,
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: |tx_hashes| validate_tx_count(tx_hashes, CUSTOM_CAIRO_0_INVOKE_TX_COUNT),
-    }]
+    }
 }
 
 /// Creates a set of transactions that test the Cairo 0 functionality.
diff --git a/crates/apollo_integration_tests/tests/test_custom_cairo1_txs.rs b/crates/apollo_integration_tests/tests/test_custom_cairo1_txs.rs
index eb624245745..13884affddd 100644
--- a/crates/apollo_integration_tests/tests/test_custom_cairo1_txs.rs
+++ b/crates/apollo_integration_tests/tests/test_custom_cairo1_txs.rs
@@ -37,12 +37,12 @@ async fn custom_cairo1_txs() {
     .await
 }
 
-fn create_custom_cairo1_txs_scenario() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_custom_cairo1_txs_scenario() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: create_custom_cairo1_test_txs,
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: |tx_hashes| validate_tx_count(tx_hashes, CUSTOM_INVOKE_TX_COUNT),
-    }]
+    }
 }
 
 /// Creates a set of transactions that test the Cairo 1.0 syscall functionality.
diff --git a/crates/apollo_integration_tests/tests/test_many.rs b/crates/apollo_integration_tests/tests/test_many.rs
index 59a73814295..7bd7f5fea09 100644
--- a/crates/apollo_integration_tests/tests/test_many.rs
+++ b/crates/apollo_integration_tests/tests/test_many.rs
@@ -26,12 +26,12 @@ async fn many_txs_fill_at_least_one_block() {
     .await
 }
 
-fn create_many_txs_scenario() -> Vec<TestScenario> {
-    vec![TestScenario {
+fn create_many_txs_scenario() -> TestScenario {
+    TestScenario {
         create_rpc_txs_fn: create_many_invoke_txs,
         create_l1_to_l2_messages_args_fn: |_| vec![],
         test_tx_hashes_fn: |tx_hashes| validate_tx_count(tx_hashes, N_TXS),
-    }]
+    }
 }
 
 /// Creates and sends more transactions than can fit in a block.