74 lines
2.5 KiB
Ruby
74 lines
2.5 KiB
Ruby
require 'spec_helper'
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describe Gitlab::BackgroundMigration::DeleteDiffFiles, :migration, :sidekiq, schema: 20180619121030 do
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describe '#perform' do
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context 'when diff files can be deleted' do
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let(:merge_request) { create(:merge_request, :merged) }
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let!(:merge_request_diff) do
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merge_request.create_merge_request_diff
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merge_request.merge_request_diffs.first
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end
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let(:perform) do
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described_class.new.perform(MergeRequestDiff.pluck(:id))
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end
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it 'deletes all merge request diff files' do
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expect { perform }
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.to change { merge_request_diff.merge_request_diff_files.count }
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.from(20).to(0)
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end
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it 'updates state to without_files' do
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expect { perform }
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.to change { merge_request_diff.reload.state }
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.from('collected').to('without_files')
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end
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it 'rollsback if something goes wrong' do
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expect(described_class::MergeRequestDiffFile).to receive_message_chain(:where, :delete_all)
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.and_raise
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expect { perform }
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.to raise_error
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merge_request_diff.reload
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expect(merge_request_diff.state).to eq('collected')
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expect(merge_request_diff.merge_request_diff_files.count).to eq(20)
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end
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end
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it 'reschedules itself when should_wait_deadtuple_vacuum' do
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merge_request = create(:merge_request, :merged)
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first_diff = merge_request.merge_request_diff
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second_diff = merge_request.create_merge_request_diff
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Sidekiq::Testing.fake! do
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worker = described_class.new
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allow(worker).to receive(:should_wait_deadtuple_vacuum?) { true }
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worker.perform([first_diff.id, second_diff.id])
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expect(described_class.name.demodulize).to be_scheduled_delayed_migration(5.minutes, [first_diff.id, second_diff.id])
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expect(BackgroundMigrationWorker.jobs.size).to eq(1)
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end
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end
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end
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describe '#should_wait_deadtuple_vacuum?' do
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it 'returns true when hitting merge_request_diff_files hits DEAD_TUPLES_THRESHOLD', :postgresql do
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worker = described_class.new
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threshold_query_result = [{ "n_dead_tup" => described_class::DEAD_TUPLES_THRESHOLD.to_s }]
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normal_query_result = [{ "n_dead_tup" => '3' }]
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allow(worker)
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.to receive(:execute_statement)
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.with(/SELECT n_dead_tup */)
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.and_return(threshold_query_result, normal_query_result)
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expect(worker.should_wait_deadtuple_vacuum?).to be(true)
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end
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end
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end
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