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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::Count::ReltuplesCountStrategy do
before do
create_list(:project, 3)
create_list(:ci_instance_variable, 2)
end
subject { described_class.new(models).count }
describe '#count' do
let(:models) { [Project, Ci::InstanceVariable] }
context 'when reltuples is up to date' do
before do
Project.connection.execute('ANALYZE projects')
Ci::InstanceVariable.connection.execute('ANALYZE ci_instance_variables')
end
it 'uses statistics to do the count' do
models.each { |model| expect(model).not_to receive(:count) }
expect(subject).to eq({ Project => 3, Ci::InstanceVariable => 2 })
end
end
context 'when models using single-type inheritance are used' do
let(:models) { [Group, Integrations::BaseCi, Namespace] }
before do
models.each do |model|
model.connection.execute("ANALYZE #{model.table_name}")
end
end
it 'returns nil counts for inherited tables' do
models.each { |model| expect(model).not_to receive(:count) }
# 3 Namespaces as parents for each Project and 3 ProjectNamespaces(for each Project)
expect(subject).to eq({ Namespace => 6 })
end
end
context 'insufficient permissions' do
it 'returns an empty hash' do
Gitlab::Database.database_base_models.each_value do |base_model|
allow(base_model).to receive(:transaction).and_raise(PG::InsufficientPrivilege)
end
expect(subject).to eq({})
end
end
end
end
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