diff --git a/rs/nervous_system/integration_tests/src/pocket_ic_helpers.rs b/rs/nervous_system/integration_tests/src/pocket_ic_helpers.rs
index 3da089a125f..7bd5304516a 100644
--- a/rs/nervous_system/integration_tests/src/pocket_ic_helpers.rs
+++ b/rs/nervous_system/integration_tests/src/pocket_ic_helpers.rs
@@ -1228,6 +1228,33 @@ pub mod nns {
             version.insert(canister_type, wasm);
             version
         }
+
+        /// Modify the WASM for a given canister type and add it to SNS-W.
+        /// Returns the new (modified) version that is now at the tip of SNS-W.
+        pub async fn modify_and_add_master_wasm(
+            pocket_ic: &PocketIc,
+            mut version: SnsWasms,
+            canister_type: SnsCanisterType,
+            nonce: u32,
+        ) -> SnsWasms {
+            let wasm = match canister_type {
+                SnsCanisterType::Root => build_root_sns_wasm(),
+                SnsCanisterType::Governance => build_governance_sns_wasm(),
+                SnsCanisterType::Ledger => build_ledger_sns_wasm(),
+                SnsCanisterType::Swap => build_swap_sns_wasm(),
+                SnsCanisterType::Index => build_index_ng_sns_wasm(),
+                SnsCanisterType::Unspecified => {
+                    panic!("Where did you get this canister type from?")
+                }
+                SnsCanisterType::Archive => build_archive_sns_wasm(),
+            };
+            let wasm = create_modified_sns_wasm(&wasm, Some(nonce));
+            add_wasm_via_nns_proposal(pocket_ic, wasm.clone())
+                .await
+                .unwrap();
+            version.insert(canister_type, wasm);
+            version
+        }
     }
 }
 
diff --git a/rs/nervous_system/integration_tests/tests/sns_upgrade_test_utils.rs b/rs/nervous_system/integration_tests/tests/sns_upgrade_test_utils.rs
index a39fc395e2b..f101f6982cc 100644
--- a/rs/nervous_system/integration_tests/tests/sns_upgrade_test_utils.rs
+++ b/rs/nervous_system/integration_tests/tests/sns_upgrade_test_utils.rs
@@ -11,6 +11,7 @@ use ic_nervous_system_integration_tests::{
     },
 };
 use ic_sns_governance::governance::UPGRADE_STEPS_INTERVAL_REFRESH_BACKOFF_SECONDS;
+use ic_sns_governance::pb::v1::upgrade_journal_entry;
 use ic_sns_swap::pb::v1::Lifecycle;
 use ic_sns_wasm::pb::v1::SnsCanisterType;
 
@@ -72,15 +73,17 @@ pub async fn test_sns_upgrade(sns_canisters_to_upgrade: Vec<SnsCanisterType>) {
         eprintln!("Upgrade pass {}", upgrade_pass);
 
         eprintln!("Adding all WASMs ...");
+        let mut expected_upgrade_steps = vec![];
         for canister_type in &sns_canisters_to_upgrade {
-            eprintln!("modify_and_add_wasm for {:?} ...", canister_type);
-            latest_sns_version = nns::sns_wasm::modify_and_add_wasm(
+            eprintln!("modify_and_add_master_wasm for {:?} ...", canister_type);
+            latest_sns_version = nns::sns_wasm::modify_and_add_master_wasm(
                 &pocket_ic,
                 latest_sns_version,
                 *canister_type,
                 upgrade_pass,
             )
             .await;
+            expected_upgrade_steps.push(hash_sns_wasms(&latest_sns_version));
         }
 
         eprintln!("wait for the upgrade steps to be refreshed ...");
@@ -101,6 +104,18 @@ pub async fn test_sns_upgrade(sns_canisters_to_upgrade: Vec<SnsCanisterType>) {
         .await
         .unwrap();
 
+        eprintln!("assert that the upgrade steps are correct ...");
+        {
+            assert_eq!(
+                sns::governance::get_upgrade_journal(&pocket_ic, sns.governance.canister_id)
+                    .await
+                    .upgrade_steps
+                    .unwrap()
+                    .versions[1..],
+                expected_upgrade_steps
+            );
+        }
+
         eprintln!("advance the target version to the latest version. ...");
         sns::governance::propose_to_advance_sns_target_version(
             &pocket_ic,
@@ -124,4 +139,37 @@ pub async fn test_sns_upgrade(sns_canisters_to_upgrade: Vec<SnsCanisterType>) {
         .await
         .unwrap();
     }
+
+    eprintln!(
+        "Asserting that there have been {} successful upgrades",
+        2 * sns_canisters_to_upgrade.len()
+    );
+    {
+        let upgrade_journal =
+            sns::governance::get_upgrade_journal(&pocket_ic, sns.governance.canister_id)
+                .await
+                .upgrade_journal
+                .unwrap()
+                .entries;
+        let upgrade_successes = upgrade_journal
+            .into_iter()
+            .filter_map(|entry| entry.event)
+            .filter(|event| {
+                matches!(
+                    event,
+                    upgrade_journal_entry::Event::UpgradeOutcome(
+                        upgrade_journal_entry::UpgradeOutcome {
+                            status: Some(upgrade_journal_entry::upgrade_outcome::Status::Success(
+                                _
+                            )),
+                            ..
+                        }
+                    )
+                )
+            });
+        assert_eq!(
+            upgrade_successes.count(),
+            2 * sns_canisters_to_upgrade.len()
+        );
+    }
 }