55 lines
1.3 KiB
Ruby
55 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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# The calling spec should use `:use_clean_rails_memory_store_caching`
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# when including this shared example. E.g.:
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#
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# describe MyCountService, :use_clean_rails_memory_store_caching do
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# it_behaves_like 'a counter caching service'
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# end
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RSpec.shared_examples 'a counter caching service' do
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describe '#count' do
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it 'caches the count', :request_store do
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subject.delete_cache
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control_count = ActiveRecord::QueryRecorder.new { subject.count }.count
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subject.delete_cache
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expect { 2.times { subject.count } }.not_to exceed_query_limit(control_count)
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end
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end
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describe '#refresh_cache' do
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it 'refreshes the cache' do
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original_count = subject.count
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Rails.cache.write(subject.cache_key, original_count + 1, raw: subject.raw?)
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subject.refresh_cache
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expect(fetch_cache || 0).to eq(original_count)
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end
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end
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describe '#delete_cache' do
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it 'removes the cache' do
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subject.count
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subject.delete_cache
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expect(fetch_cache).to be_nil
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end
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end
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describe '#uncached_count' do
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it 'does not cache the count' do
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subject.delete_cache
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subject.uncached_count
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expect(fetch_cache).to be_nil
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end
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end
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private
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def fetch_cache
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Rails.cache.read(subject.cache_key, raw: subject.raw?)
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end
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end
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