1 files changed, 35 insertions, 0 deletions
diff --git a/spec/migrations/20220502015011_clean_up_fix_merge_request_diff_commit_users_spec.rb b/spec/migrations/20220502015011_clean_up_fix_merge_request_diff_commit_users_spec.rb
new file mode 100644
index 00000000000..769c0993b67
--- /dev/null
+++ b/spec/migrations/20220502015011_clean_up_fix_merge_request_diff_commit_users_spec.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require_migration! 'clean_up_fix_merge_request_diff_commit_users'
+
+RSpec.describe CleanUpFixMergeRequestDiffCommitUsers, :migration do
+  let(:namespaces) { table(:namespaces) }
+  let(:projects) { table(:projects) }
+  let(:project_namespace) { namespaces.create!(name: 'project2', path: 'project2', type: 'Project') }
+  let(:namespace) { namespaces.create!(name: 'foo', path: 'foo') }
+
+  describe '#up' do
+    it 'finalizes the background migration' do
+      expect(described_class).to be_finalize_background_migration_of('FixMergeRequestDiffCommitUsers')
+
+      migrate!
+    end
+
+    it 'processes pending background jobs' do
+      project = projects.create!(name: 'p1', namespace_id: namespace.id, project_namespace_id: project_namespace.id)
+
+      Gitlab::Database::BackgroundMigrationJob.create!(
+        class_name: 'FixMergeRequestDiffCommitUsers',
+        arguments: [project.id]
+      )
+
+      migrate!
+
+      background_migrations = Gitlab::Database::BackgroundMigrationJob
+        .where(class_name: 'FixMergeRequestDiffCommitUsers')
+
+      expect(background_migrations.count).to eq(0)
+    end
+  end
+end