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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Namespace::TraversalHierarchy, type: :model do
let_it_be(:root, reload: true) { create(:group, :with_hierarchy) }
describe '.for_namespace' do
let(:hierarchy) { described_class.for_namespace(group) }
context 'with root group' do
let(:group) { root }
it { expect(hierarchy.root).to eq root }
end
context 'with child group' do
let(:group) { root.children.first.children.first }
it { expect(hierarchy.root).to eq root }
end
context 'with group outside of hierarchy' do
let(:group) { create(:namespace) }
it { expect(hierarchy.root).not_to eq root }
end
end
describe '.new' do
let(:hierarchy) { described_class.new(group) }
context 'with root group' do
let(:group) { root }
it { expect(hierarchy.root).to eq root }
end
context 'with child group' do
let(:group) { root.children.first }
it { expect { hierarchy }.to raise_error(StandardError, 'Must specify a root node') }
end
end
shared_examples 'locked update query' do
it 'locks query with FOR UPDATE' do
qr = ActiveRecord::QueryRecorder.new do
subject
end
expect(qr.count).to eq 1
expect(qr.log.first).to match /FOR UPDATE/
end
end
describe '#incorrect_traversal_ids' do
let!(:hierarchy) { described_class.new(root) }
subject { hierarchy.incorrect_traversal_ids }
before do
Namespace.update_all(traversal_ids: [])
end
it { is_expected.to match_array Namespace.all }
context 'when lock is true' do
subject { hierarchy.incorrect_traversal_ids(lock: true).load }
it_behaves_like 'locked update query'
end
end
describe '#sync_traversal_ids!' do
let!(:hierarchy) { described_class.new(root) }
subject { hierarchy.sync_traversal_ids! }
it { expect(hierarchy.incorrect_traversal_ids).to be_empty }
it_behaves_like 'hierarchy with traversal_ids'
it_behaves_like 'locked update query'
context 'when deadlocked' do
before do
connection_double = double(:connection)
allow(Namespace).to receive(:connection).and_return(connection_double)
allow(connection_double).to receive(:exec_query) { raise ActiveRecord::Deadlocked.new }
end
it { expect { subject }.to raise_error(ActiveRecord::Deadlocked) }
it 'increment db_deadlock counter' do
expect { subject rescue nil }.to change { db_deadlock_total('Namespace#sync_traversal_ids!') }.by(1)
end
end
end
def db_deadlock_total(source)
Gitlab::Metrics
.counter(:db_deadlock, 'Counts the times we have deadlocked in the database')
.get(source: source)
end
end
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