diff --git a/.gitignore b/.gitignore
index 1b78d29f7d..ac4bdda13c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -58,3 +58,4 @@ config/settings.local.yml
 
 app/javascript/i18n/.env
 vendor/bundle/
+ruby-3.4.4/
diff --git a/test/commands/solution/complete_test.rb b/test/commands/solution/complete_test.rb
index ea09785b7f..7894dc3423 100644
--- a/test/commands/solution/complete_test.rb
+++ b/test/commands/solution/complete_test.rb
@@ -52,7 +52,9 @@ class Solution::CompleteTest < ActiveSupport::TestCase
     solution = create(:practice_solution, user:, exercise:)
     create(:iteration, solution:)
 
-    Solution::Complete.(solution, user_track)
+    perform_enqueued_jobs do
+      Solution::Complete.(solution, user_track)
+    end
 
     activity = User::Activities::CompletedExerciseActivity.last
     assert_equal user, activity.user
@@ -73,7 +75,9 @@ class Solution::CompleteTest < ActiveSupport::TestCase
       # Sanity check
       assert solution.completed?
 
-      Solution::Complete.(solution, user_track)
+      perform_enqueued_jobs do
+        Solution::Complete.(solution, user_track)
+      end
 
       solution.reload
       assert solution.completed?
diff --git a/test/commands/solution/publish_iteration_test.rb b/test/commands/solution/publish_iteration_test.rb
index 13797bdfdc..5346c44e11 100644
--- a/test/commands/solution/publish_iteration_test.rb
+++ b/test/commands/solution/publish_iteration_test.rb
@@ -68,7 +68,7 @@ class Solution::PublishIterationTest < ActiveSupport::TestCase
     solution = create(:concept_solution)
     create(:iteration, submission: create(:submission, solution:))
 
-    Solution::UpdatePublishedExerciseRepresentation.expects(:call).with(solution)
+    Solution::UpdatePublishedExerciseRepresentation.expects(:defer).with(solution)
 
     Solution::Publish.(solution, user_track, nil)
   end
@@ -83,7 +83,7 @@ class Solution::PublishIterationTest < ActiveSupport::TestCase
     solution = create(:concept_solution)
     create(:iteration, submission: create(:submission, solution:))
 
-    Solution::UpdateTags.expects(:call).with(solution)
+    Solution::UpdateTags.expects(:defer).with(solution)
 
     Solution::Publish.(solution, user_track, nil)
   end
diff --git a/test/commands/solution/publish_test.rb b/test/commands/solution/publish_test.rb
index cd66e7d5fc..4e8c3bfd37 100644
--- a/test/commands/solution/publish_test.rb
+++ b/test/commands/solution/publish_test.rb
@@ -100,7 +100,9 @@ class Solution::PublishTest < ActiveSupport::TestCase
     solution = create(:practice_solution, user:, exercise:)
     iteration = create(:iteration, solution:)
 
-    Solution::Publish.(solution, solution.user_track, iteration.idx)
+    perform_enqueued_jobs do
+      Solution::Publish.(solution, solution.user_track, iteration.idx)
+    end
 
     activity = User::Activities::PublishedExerciseActivity.last
     assert_equal user, activity.user
@@ -594,7 +596,7 @@ class Solution::PublishTest < ActiveSupport::TestCase
     solution = create(:concept_solution, user:, exercise:)
     create(:iteration, solution:)
 
-    Solution::UpdatePublishedExerciseRepresentation.expects(:call).with(solution)
+    Solution::UpdatePublishedExerciseRepresentation.expects(:defer).with(solution)
     Solution::Publish.(solution, user_track, nil)
   end
 end
diff --git a/test/integration/test_runner_flow_test.rb b/test/integration/test_runner_flow_test.rb
index 9299e5063d..16c0abb7d2 100644
--- a/test/integration/test_runner_flow_test.rb
+++ b/test/integration/test_runner_flow_test.rb
@@ -28,7 +28,10 @@ class TestRunnerFlowTest < ActionDispatch::IntegrationTest
   test "runs the tests for an iteration submission" do
     # Stub things we don't care about here
     Iteration::GenerateSnippet.any_instance.stubs(:call)
-    Solution::UpdateNumLoc.any_instance.stubs(:call)
+    Solution::UpdateNumLoc.stubs(:defer)
+    Solution::UpdateTags.stubs(:defer)
+    Solution::UpdatePublishedExerciseRepresentation.stubs(:defer)
+    Solution::UpdateSnippet.stubs(:defer)
     Iteration::CountLinesOfCode.any_instance.stubs(:call)
 
     solution = create(:concept_solution)
@@ -75,7 +78,10 @@ class TestRunnerFlowTest < ActionDispatch::IntegrationTest
   test "handles a new git sha being pushed: failing" do
     # Stub things we don't care about here
     Iteration::GenerateSnippet.any_instance.stubs(:call)
-    Solution::UpdateNumLoc.any_instance.stubs(:call)
+    Solution::UpdateNumLoc.stubs(:defer)
+    Solution::UpdateTags.stubs(:defer)
+    Solution::UpdatePublishedExerciseRepresentation.stubs(:defer)
+    Solution::UpdateSnippet.stubs(:defer)
     Iteration::CountLinesOfCode.any_instance.stubs(:call)
 
     exercise = create :practice_exercise, git_sha: '0b04b8976650d993ecf4603cf7413f3c6b898eff'
@@ -178,7 +184,10 @@ class TestRunnerFlowTest < ActionDispatch::IntegrationTest
   test "handles a new git sha being pushed: passing auto updates" do
     # Stub things we don't care about here
     Iteration::GenerateSnippet.any_instance.stubs(:call)
-    Solution::UpdateNumLoc.any_instance.stubs(:call)
+    Solution::UpdateNumLoc.stubs(:defer)
+    Solution::UpdateTags.stubs(:defer)
+    Solution::UpdatePublishedExerciseRepresentation.stubs(:defer)
+    Solution::UpdateSnippet.stubs(:defer)
     Iteration::CountLinesOfCode.any_instance.stubs(:call)
 
     exercise = create :practice_exercise, git_sha: '0b04b8976650d993ecf4603cf7413f3c6b898eff'
@@ -271,7 +280,10 @@ class TestRunnerFlowTest < ActionDispatch::IntegrationTest
   test "honours [no important files changed] and auto-updates" do
     # Stub things we don't care about here
     Iteration::GenerateSnippet.any_instance.stubs(:call)
-    Solution::UpdateNumLoc.any_instance.stubs(:call)
+    Solution::UpdateNumLoc.stubs(:defer)
+    Solution::UpdateTags.stubs(:defer)
+    Solution::UpdatePublishedExerciseRepresentation.stubs(:defer)
+    Solution::UpdateSnippet.stubs(:defer)
     Iteration::CountLinesOfCode.any_instance.stubs(:call)
 
     # This exercise contains the right set of things to