92 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			92 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Ruby
		
	
	
	
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Metrics::BackgroundTransaction do
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  let(:transaction) { described_class.new }
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  describe '#run' do
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    let(:prometheus_metric) { instance_double(Prometheus::Client::Metric, base_labels: {}) }
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    before do
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      allow(described_class).to receive(:prometheus_metric).and_return(prometheus_metric)
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    end
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    it 'yields the supplied block' do
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      expect { |b| transaction.run(&b) }.to yield_control
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    end
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    it 'stores the transaction in the current thread' do
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      transaction.run do
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        expect(Thread.current[described_class::THREAD_KEY]).to eq(transaction)
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      end
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    end
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    it 'removes the transaction from the current thread upon completion' do
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      transaction.run { }
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      expect(Thread.current[described_class::THREAD_KEY]).to be_nil
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    end
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  end
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  describe '#labels' do
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    context 'when the worker queue is accessible' do
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      before do
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        test_worker_class = Class.new do
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          def self.queue
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            'test_worker'
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          end
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        end
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        stub_const('TestWorker', test_worker_class)
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      end
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      it 'provides labels with endpoint_id, feature_category and queue' do
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        Gitlab::ApplicationContext.with_raw_context(feature_category: 'projects', caller_id: 'TestWorker') do
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          expect(transaction.labels).to eq({ endpoint_id: 'TestWorker', feature_category: 'projects', queue: 'test_worker' })
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        end
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      end
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    end
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    context 'when the worker name does not exist' do
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      it 'provides labels with endpoint_id and feature_category' do
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        # 123TestWorker is an invalid constant
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        Gitlab::ApplicationContext.with_raw_context(feature_category: 'projects', caller_id: '123TestWorker') do
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          expect(transaction.labels).to eq({ endpoint_id: '123TestWorker', feature_category: 'projects', queue: nil })
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        end
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      end
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    end
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    context 'when the worker queue is not accessible' do
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      before do
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        stub_const('TestWorker', Class.new)
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      end
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      it 'provides labels with endpoint_id and feature_category' do
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        Gitlab::ApplicationContext.with_raw_context(feature_category: 'projects', caller_id: 'TestWorker') do
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          expect(transaction.labels).to eq({ endpoint_id: 'TestWorker', feature_category: 'projects', queue: nil })
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        end
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      end
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    end
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  end
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  it_behaves_like 'transaction metrics with labels' do
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    let(:transaction_obj) { described_class.new }
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    let(:labels) { { endpoint_id: 'TestWorker', feature_category: 'projects', queue: 'test_worker' } }
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    before do
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      test_worker_class = Class.new do
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        def self.queue
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          'test_worker'
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        end
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      end
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      stub_const('TestWorker', test_worker_class)
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    end
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    around do |example|
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      Gitlab::ApplicationContext.with_raw_context(feature_category: 'projects', caller_id: 'TestWorker') do
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        example.run
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      end
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    end
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  end
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end
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