1 files changed, 58 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/migration_helpers/loose_foreign_key_helpers_spec.rb b/spec/lib/gitlab/database/migration_helpers/loose_foreign_key_helpers_spec.rb
new file mode 100644
index 00000000000..708d1be6e00
--- /dev/null
+++ b/spec/lib/gitlab/database/migration_helpers/loose_foreign_key_helpers_spec.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Database::MigrationHelpers::LooseForeignKeyHelpers do
+  let_it_be(:migration) do
+    ActiveRecord::Migration.new.extend(described_class)
+  end
+
+  let(:model) do
+    Class.new(ApplicationRecord) do
+      self.table_name = 'loose_fk_test_table'
+    end
+  end
+
+  before(:all) do
+    migration.create_table :loose_fk_test_table do |t|
+      t.timestamps
+    end
+  end
+
+  before do
+    3.times { model.create! }
+  end
+
+  context 'when the record deletion tracker trigger is not installed' do
+    it 'does store record deletions' do
+      model.delete_all
+
+      expect(LooseForeignKeys::DeletedRecord.count).to eq(0)
+    end
+  end
+
+  context 'when the record deletion tracker trigger is installed' do
+    before do
+      migration.track_record_deletions(:loose_fk_test_table)
+    end
+
+    it 'stores the record deletion' do
+      records = model.all
+      record_to_be_deleted = records.last
+
+      record_to_be_deleted.delete
+
+      expect(LooseForeignKeys::DeletedRecord.count).to eq(1)
+      deleted_record = LooseForeignKeys::DeletedRecord.all.first
+
+      expect(deleted_record.deleted_table_primary_key_value).to eq(record_to_be_deleted.id)
+      expect(deleted_record.deleted_table_name).to eq('loose_fk_test_table')
+    end
+
+    it 'stores multiple record deletions' do
+      model.delete_all
+
+      expect(LooseForeignKeys::DeletedRecord.count).to eq(3)
+    end
+  end
+end