72 lines
2 KiB
Ruby
72 lines
2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Gitlab::LoopingBatcher, :use_clean_rails_memory_store_caching do
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describe '#next_range!' do
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let(:model_class) { LfsObject }
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let(:key) { 'looping_batcher_spec' }
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let(:batch_size) { 2 }
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subject { described_class.new(model_class, key: key, batch_size: batch_size).next_range! }
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context 'when there are no records' do
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it { is_expected.to be_nil }
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end
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context 'when there are records' do
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let!(:records) { create_list(model_class.underscore, 3) }
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context 'when it has never been called before' do
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it { is_expected.to be_a Range }
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it 'starts from the beginning' do
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expect(subject.first).to eq(1)
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end
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it 'ends at a full batch' do
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expect(subject.last).to eq(records.second.id)
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end
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context 'when the batch size is greater than the number of records' do
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let(:batch_size) { 5 }
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it 'ends at the last ID' do
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expect(subject.last).to eq(records.last.id)
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end
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end
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end
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context 'when it was called before' do
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context 'when the previous batch included the end of the table' do
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before do
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described_class.new(model_class, key: key, batch_size: model_class.count).next_range!
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end
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it 'starts from the beginning' do
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expect(subject).to eq(1..records.second.id)
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end
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end
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context 'when the previous batch did not include the end of the table' do
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before do
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described_class.new(model_class, key: key, batch_size: model_class.count - 1).next_range!
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end
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it 'starts after the previous batch' do
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expect(subject).to eq(records.last.id..records.last.id)
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end
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end
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context 'if cache is cleared' do
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it 'starts from the beginning' do
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Rails.cache.clear
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expect(subject).to eq(1..records.second.id)
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end
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end
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end
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end
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end
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end
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