115 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			115 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Instrumentation::Redis do
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  def stub_storages(method, value)
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    described_class::STORAGES.each do |storage|
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      allow(storage).to receive(method) { value }
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    end
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  end
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  shared_examples 'aggregation of redis storage data' do |method|
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    describe "#{method} sum" do
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      it "sums data from all Redis storages" do
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        amount = 0.3
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        stub_storages(method, amount)
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        expect(described_class.public_send(method)).to eq(described_class::STORAGES.size * amount)
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      end
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    end
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  end
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  it_behaves_like 'aggregation of redis storage data', :get_request_count
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  it_behaves_like 'aggregation of redis storage data', :query_time
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  it_behaves_like 'aggregation of redis storage data', :read_bytes
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  it_behaves_like 'aggregation of redis storage data', :write_bytes
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  describe '.known_payload_keys' do
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    it 'returns all known payload keys' do
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      expected_keys = [
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        :redis_calls,
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        :redis_duration_s,
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        :redis_read_bytes,
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        :redis_write_bytes,
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        :redis_action_cable_calls,
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        :redis_action_cable_duration_s,
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        :redis_action_cable_read_bytes,
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        :redis_action_cable_write_bytes,
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        :redis_cache_calls,
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        :redis_cache_duration_s,
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        :redis_cache_read_bytes,
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        :redis_cache_write_bytes,
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        :redis_queues_calls,
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        :redis_queues_duration_s,
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        :redis_queues_read_bytes,
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        :redis_queues_write_bytes,
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        :redis_shared_state_calls,
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        :redis_shared_state_duration_s,
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        :redis_shared_state_read_bytes,
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        :redis_shared_state_write_bytes
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      ]
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      expect(described_class.known_payload_keys).to eq(expected_keys)
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    end
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    it 'does not call storage calculation methods' do
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      described_class::STORAGES.each do |storage|
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        expect(storage).not_to receive(:get_request_count)
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        expect(storage).not_to receive(:query_time)
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        expect(storage).not_to receive(:read_bytes)
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        expect(storage).not_to receive(:write_bytes)
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      end
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      described_class.known_payload_keys
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    end
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  end
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  describe '.payload', :request_store do
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    before do
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      Gitlab::Redis::Cache.with { |redis| redis.set('cache-test', 321) }
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      Gitlab::Redis::SharedState.with { |redis| redis.set('shared-state-test', 123) }
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    end
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    it 'returns payload filtering out zeroed values' do
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      expected_payload = {
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        # Aggregated results
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        redis_calls: 2,
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        redis_duration_s: be >= 0,
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        redis_read_bytes: be >= 0,
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        redis_write_bytes: be >= 0,
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        # Cache results
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        redis_cache_calls: 1,
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        redis_cache_duration_s: be >= 0,
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        redis_cache_read_bytes: be >= 0,
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        redis_cache_write_bytes: be >= 0,
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        # Shared state results
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        redis_shared_state_calls: 1,
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        redis_shared_state_duration_s: be >= 0,
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        redis_shared_state_read_bytes: be >= 0,
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        redis_shared_state_write_bytes: be >= 0
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      }
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      expect(described_class.payload).to include(expected_payload)
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      expect(described_class.payload.keys).to match_array(expected_payload.keys)
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    end
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  end
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  describe '.detail_store' do
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    it 'returns a flat array of detail stores with the storage name added to each item' do
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      details_row = { cmd: 'GET foo', duration: 1 }
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      stub_storages(:detail_store, [details_row])
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      expect(described_class.detail_store)
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        .to contain_exactly(details_row.merge(storage: 'ActionCable'),
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                            details_row.merge(storage: 'Cache'),
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                            details_row.merge(storage: 'Queues'),
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                            details_row.merge(storage: 'SharedState'))
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    end
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  end
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end
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