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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::Reindexing do
include ExclusiveLeaseHelpers
describe '.perform' do
subject { described_class.perform(candidate_indexes) }
let(:coordinator) { instance_double(Gitlab::Database::Reindexing::Coordinator) }
let(:index_selection) { instance_double(Gitlab::Database::Reindexing::IndexSelection) }
let(:candidate_indexes) { double }
let(:indexes) { [double, double] }
it 'delegates to Coordinator' do
expect(Gitlab::Database::Reindexing::IndexSelection).to receive(:new).with(candidate_indexes).and_return(index_selection)
expect(index_selection).to receive(:take).with(2).and_return(indexes)
indexes.each do |index|
expect(Gitlab::Database::Reindexing::Coordinator).to receive(:new).with(index).and_return(coordinator)
expect(coordinator).to receive(:perform)
end
subject
end
end
describe '.cleanup_leftovers!' do
subject { described_class.cleanup_leftovers! }
before do
ApplicationRecord.connection.execute(<<~SQL)
CREATE INDEX foobar_ccnew ON users (id);
CREATE INDEX foobar_ccnew1 ON users (id);
SQL
end
it 'drops both leftover indexes' do
expect_query("SET lock_timeout TO '60000ms'")
expect_query("DROP INDEX CONCURRENTLY IF EXISTS \"public\".\"foobar_ccnew\"")
expect_query("RESET idle_in_transaction_session_timeout; RESET lock_timeout")
expect_query("SET lock_timeout TO '60000ms'")
expect_query("DROP INDEX CONCURRENTLY IF EXISTS \"public\".\"foobar_ccnew1\"")
expect_query("RESET idle_in_transaction_session_timeout; RESET lock_timeout")
subject
end
def expect_query(sql)
expect(ApplicationRecord.connection).to receive(:execute).ordered.with(sql).and_wrap_original do |method, sql|
method.call(sql.sub(/CONCURRENTLY/, ''))
end
end
end
end
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