59 lines
1.9 KiB
Ruby
59 lines
1.9 KiB
Ruby
require 'spec_helper'
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describe Gitlab::Database::Count do
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before do
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create_list(:project, 3)
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create(:identity)
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end
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let(:models) { [Project, Identity] }
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context '.approximate_counts' do
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context 'selecting strategies' do
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let(:strategies) { [double('s1', enabled?: true), double('s2', enabled?: false)] }
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it 'uses only enabled strategies' do
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expect(strategies[0]).to receive(:new).and_return(double('strategy1', count: {}))
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expect(strategies[1]).not_to receive(:new)
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described_class.approximate_counts(models, strategies: strategies)
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end
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end
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context 'fallbacks' do
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subject { described_class.approximate_counts(models, strategies: strategies) }
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let(:strategies) do
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[
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double('s1', enabled?: true, new: first_strategy),
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double('s2', enabled?: true, new: second_strategy)
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]
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end
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let(:first_strategy) { double('first strategy', count: {}) }
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let(:second_strategy) { double('second strategy', count: {}) }
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it 'gets results from first strategy' do
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expect(strategies[0]).to receive(:new).with(models).and_return(first_strategy)
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expect(first_strategy).to receive(:count)
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subject
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end
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it 'gets more results from second strategy if some counts are missing' do
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expect(first_strategy).to receive(:count).and_return({ Project => 3 })
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expect(strategies[1]).to receive(:new).with([Identity]).and_return(second_strategy)
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expect(second_strategy).to receive(:count).and_return({ Identity => 1 })
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expect(subject).to eq({ Project => 3, Identity => 1 })
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end
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it 'does not get more results as soon as all counts are present' do
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expect(first_strategy).to receive(:count).and_return({ Project => 3, Identity => 1 })
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expect(strategies[1]).not_to receive(:new)
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subject
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end
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end
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end
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end
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