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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::Reindexing do
describe '.perform' do
before do
allow(Gitlab::Database::Reindexing::ReindexAction).to receive(:keep_track_of).and_yield
end
shared_examples_for 'reindexing' do
before do
indexes.zip(reindexers).each do |index, reindexer|
allow(Gitlab::Database::Reindexing::ConcurrentReindex).to receive(:new).with(index).and_return(reindexer)
allow(reindexer).to receive(:perform)
end
end
it 'performs concurrent reindexing for each index' do
indexes.zip(reindexers).each do |index, reindexer|
expect(Gitlab::Database::Reindexing::ConcurrentReindex).to receive(:new).with(index).ordered.and_return(reindexer)
expect(reindexer).to receive(:perform)
end
subject
end
it 'keeps track of actions and creates ReindexAction records' do
indexes.each do |index|
expect(Gitlab::Database::Reindexing::ReindexAction).to receive(:keep_track_of).with(index).and_yield
end
subject
end
end
context 'with multiple indexes' do
subject { described_class.perform(indexes) }
let(:indexes) { [instance_double('Gitlab::Database::PostgresIndex'), instance_double('Gitlab::Database::PostgresIndex')] }
let(:reindexers) { [instance_double('Gitlab::Database::Reindexing::ConcurrentReindex'), instance_double('Gitlab::Database::Reindexing::ConcurrentReindex')] }
it_behaves_like 'reindexing'
end
context 'single index' do
subject { described_class.perform(indexes.first) }
let(:indexes) { [instance_double('Gitlab::Database::PostgresIndex')] }
let(:reindexers) { [instance_double('Gitlab::Database::Reindexing::ConcurrentReindex')] }
it_behaves_like 'reindexing'
end
end
describe '.candidate_indexes' do
subject { described_class.candidate_indexes }
it 'retrieves regular indexes that are no left-overs from previous runs' do
result = double
expect(Gitlab::Database::PostgresIndex).to receive_message_chain('regular.not_match.not_match').with(no_args).with('^tmp_reindex_').with('^old_reindex_').and_return(result)
expect(subject).to eq(result)
end
end
end
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