1 files changed, 43 insertions, 0 deletions
diff --git a/spec/rubocop/batched_background_migrations_spec.rb b/spec/rubocop/batched_background_migrations_spec.rb
new file mode 100644
index 00000000000..a9b99bb466b
--- /dev/null
+++ b/spec/rubocop/batched_background_migrations_spec.rb
@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+require 'rubocop_spec_helper'
+
+require_relative '../../rubocop/batched_background_migrations'
+
+RSpec.describe RuboCop::BatchedBackgroundMigrations, feature_category: :database do
+  let(:bbm_dictionary_file_name) { "#{described_class::DICTIONARY_BASE_DIR}/test_migration.yml" }
+  let(:migration_version) { 20230307160250 }
+  let(:finalized_by_version) { 20230307160255 }
+  let(:bbm_dictionary_data) do
+    {
+      migration_job_name: 'TestMigration',
+      feature_category: :database,
+      introduced_by_url: 'https://test_url',
+      milestone: 16.5,
+      queued_migration_version: migration_version,
+      finalized_by: finalized_by_version
+    }
+  end
+
+  before do
+    File.open(bbm_dictionary_file_name, 'w') do |file|
+      file.write(bbm_dictionary_data.stringify_keys.to_yaml)
+    end
+  end
+
+  after do
+    FileUtils.rm(bbm_dictionary_file_name)
+  end
+
+  subject(:batched_background_migration) { described_class.new(migration_version) }
+
+  describe '#finalized_by' do
+    it 'returns the finalized_by version of the bbm with given version' do
+      expect(batched_background_migration.finalized_by).to eq(finalized_by_version.to_s)
+    end
+
+    it 'returns nothing for non-existing bbm dictionary' do
+      expect(described_class.new('random').finalized_by).to be_nil
+    end
+  end
+end