1 files changed, 78 insertions, 0 deletions
diff --git a/spec/lib/gitlab/background_migration/backfill_issue_search_data_namespace_id_spec.rb b/spec/lib/gitlab/background_migration/backfill_issue_search_data_namespace_id_spec.rb
new file mode 100644
index 00000000000..ea5c7086ac2
--- /dev/null
+++ b/spec/lib/gitlab/background_migration/backfill_issue_search_data_namespace_id_spec.rb
@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::BackgroundMigration::BackfillIssueSearchDataNamespaceId,
+  schema: 20240105144908, feature_category: :team_planning do
+  let(:namespaces) { table(:namespaces) }
+  let(:projects) { table(:projects) }
+  let(:issues) { table(:issues) }
+  let(:issue_search_data) { table(:issue_search_data) }
+  let(:issue_type) { table(:work_item_types).find_by!(namespace_id: nil, base_type: 0) }
+
+  let(:namespace_1) { namespaces.create!(name: 'namespace1', type: 'Group', path: 'namespace1') }
+  let(:namespace_2) { namespaces.create!(name: 'namespace2', type: 'Group', path: 'namespace2') }
+
+  let(:proj_ns_1) { namespaces.create!(name: 'pn1', path: 'pn1', type: 'Project', parent_id: namespace_1.id) }
+  let(:proj_ns_2) { namespaces.create!(name: 'pn2', path: 'pn2', type: 'Project', parent_id: namespace_2.id) }
+
+  let(:proj_1) do
+    projects.create!(name: 'proj1', path: 'proj1', namespace_id: namespace_1.id, project_namespace_id: proj_ns_1.id)
+  end
+
+  let(:proj_2) do
+    projects.create!(name: 'proj2', path: 'proj2', namespace_id: namespace_2.id, project_namespace_id: proj_ns_2.id)
+  end
+
+  let(:proj_1_issue_1) do
+    issues.create!(title: 'issue1', project_id: proj_1.id, namespace_id: proj_ns_1.id, work_item_type_id: issue_type.id)
+  end
+
+  let(:proj_1_issue_2) do
+    issues.create!(title: 'issue2', project_id: proj_1.id, namespace_id: proj_ns_1.id, work_item_type_id: issue_type.id)
+  end
+
+  let(:proj_2_issue_1) do
+    issues.create!(title: 'issue1', project_id: proj_2.id, namespace_id: proj_ns_2.id, work_item_type_id: issue_type.id)
+  end
+
+  let(:proj_2_issue_2) do
+    issues.create!(title: 'issue2', project_id: proj_2.id, namespace_id: proj_ns_2.id, work_item_type_id: issue_type.id)
+  end
+
+  let!(:proj_1_issue_1_search_data) do
+    issue_search_data.create!(namespace_id: nil, project_id: proj_1.id, issue_id: proj_1_issue_1.id)
+  end
+
+  let!(:proj_1_issue_2_search_data) do
+    issue_search_data.create!(namespace_id: nil, project_id: proj_1.id, issue_id: proj_1_issue_2.id)
+  end
+
+  let!(:proj_2_issue_1_search_data) do
+    issue_search_data.create!(namespace_id: nil, project_id: proj_2.id, issue_id: proj_2_issue_1.id)
+  end
+
+  let!(:proj_2_issue_2_search_data) do
+    issue_search_data.create!(namespace_id: nil, project_id: proj_2.id, issue_id: proj_2_issue_2.id)
+  end
+
+  let(:migration) do
+    described_class.new(
+      start_id: proj_1_issue_1.id,
+      end_id: proj_2_issue_2.id,
+      batch_table: :issues,
+      batch_column: :id,
+      sub_batch_size: 2,
+      pause_ms: 2,
+      connection: ApplicationRecord.connection
+    )
+  end
+
+  it 'backfills namespace_id for the specified records' do
+    migration.perform
+
+    [proj_1_issue_1, proj_1_issue_2, proj_2_issue_1, proj_2_issue_2].each do |issue|
+      expect(issue_search_data.find_by_issue_id(issue.id).namespace_id).to eq(issue.namespace_id)
+    end
+  end
+end