1 files changed, 48 insertions, 0 deletions
diff --git a/spec/migrations/20211012134316_clean_up_migrate_merge_request_diff_commit_users_spec.rb b/spec/migrations/20211012134316_clean_up_migrate_merge_request_diff_commit_users_spec.rb
new file mode 100644
index 00000000000..910e6d1d91b
--- /dev/null
+++ b/spec/migrations/20211012134316_clean_up_migrate_merge_request_diff_commit_users_spec.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require_migration! 'clean_up_migrate_merge_request_diff_commit_users'
+
+RSpec.describe CleanUpMigrateMergeRequestDiffCommitUsers, :migration do
+  describe '#up' do
+    context 'when there are pending jobs' do
+      it 'processes the jobs immediately' do
+        Gitlab::Database::BackgroundMigrationJob.create!(
+          class_name: 'MigrateMergeRequestDiffCommitUsers',
+          status: :pending,
+          arguments: [10, 20]
+        )
+
+        spy = Gitlab::BackgroundMigration::MigrateMergeRequestDiffCommitUsers
+        migration = described_class.new
+
+        allow(Gitlab::BackgroundMigration::MigrateMergeRequestDiffCommitUsers)
+          .to receive(:new)
+          .and_return(spy)
+
+        expect(migration).to receive(:say)
+        expect(spy).to receive(:perform).with(10, 20)
+
+        migration.up
+      end
+    end
+
+    context 'when all jobs are completed' do
+      it 'does nothing' do
+        Gitlab::Database::BackgroundMigrationJob.create!(
+          class_name: 'MigrateMergeRequestDiffCommitUsers',
+          status: :succeeded,
+          arguments: [10, 20]
+        )
+
+        migration = described_class.new
+
+        expect(migration).not_to receive(:say)
+        expect(Gitlab::BackgroundMigration::MigrateMergeRequestDiffCommitUsers)
+          .not_to receive(:new)
+
+        migration.up
+      end
+    end
+  end
+end