diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeExecuteTestBase.php b/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeExecuteTestBase.php
index 36925d2b84..eb3ff13cd9 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeExecuteTestBase.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeExecuteTestBase.php
@@ -108,6 +108,7 @@ public function testMigrateUpgradeExecute() {
     $this->drupalPostForm(NULL, [], t('Perform upgrade'));
     $this->assertText(t('Congratulations, you upgraded Drupal!'));
     $this->assertMigrationResults($this->getEntityCounts(), $version);
+    $this->assertFollowUpMigrationResults($this->getFollowUpMigrationExpectedResults());
 
     \Drupal::service('module_installer')->install(['forum']);
     \Drupal::service('module_installer')->install(['book']);
diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php b/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php
index c09b7ca723..45598dfa9b 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php
@@ -166,6 +166,14 @@ protected function assertUpgradePaths(WebAssert $session, array $available_paths
   abstract protected function getEntityCountsIncremental();
 
   /**
+   * Gets expected number of results per follow-up migrations.
+   *
+   * @return int[]
+   *   An array of expected counts keyed by migration ID.
+   */
+  abstract protected function getFollowUpMigrationExpectedResults();
+
+  /**
    * Helper method to assert the text on the 'Upgrade analysis report' page.
    *
    * @param \Drupal\Tests\WebAssert $session
@@ -260,4 +268,19 @@ protected function assertMigrationResults(array $expected_counts, $version) {
     }
   }
 
+  /**
+   * Checks that follow-up migrations have been performed successfully.
+   *
+   * @param array $expected_results
+   *   The follow-up migrations expected results.
+   */
+  protected function assertFollowUpMigrationResults(array $expected_results) {
+    $plugin_manager = $this->container->get('plugin.manager.migration');
+    foreach ($expected_results as $migration_id => $expected_result) {
+      /** @var \Drupal\migrate\Plugin\MigrationInterface $migration */
+      $migration = $plugin_manager->createInstance($migration_id);
+      $this->assertSame($migration->getIdMap()->importedCount(), $expected_result);
+    }
+  }
+
 }
diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/d6/MigrateUpgrade6Test.php b/core/modules/migrate_drupal_ui/tests/src/Functional/d6/MigrateUpgrade6Test.php
index 62c54cc0c4..c86f2377e5 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/d6/MigrateUpgrade6Test.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/d6/MigrateUpgrade6Test.php
@@ -183,6 +183,15 @@ protected function getMissingPaths() {
   }
 
   /**
+   * {@inheritdoc}
+   */
+  protected function getFollowUpMigrationExpectedResults() {
+    return [
+      'd6_entity_reference_translation:node__page' => 4,
+    ];
+  }
+
+  /**
    * Executes all steps of migrations upgrade.
    */
   public function testMigrateUpgradeExecute() {
diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php
index 72ce58fe55..c9130b2240 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/d7/MigrateUpgrade7Test.php
@@ -181,6 +181,15 @@ protected function getMissingPaths() {
   }
 
   /**
+   * {@inheritdoc}
+   */
+  protected function getFollowUpMigrationExpectedResults() {
+    return [
+      'd7_entity_reference_translation:node__article' => 2,
+    ];
+  }
+
+  /**
    * Executes all steps of migrations upgrade.
    */
   public function testMigrateUpgradeExecute() {