102 lines
3.5 KiB
Ruby
102 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe MergeRequests::Mergeability::Logger, :request_store do
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let_it_be(:merge_request) { create(:merge_request) }
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subject(:logger) { described_class.new(merge_request: merge_request) }
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let(:caller_id) { 'a' }
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before do
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allow(Gitlab::ApplicationContext).to receive(:current_context_attribute).with(:caller_id).and_return(caller_id)
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end
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def loggable_data(**extras)
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{
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'mergeability.expensive_operation.duration_s.values' => a_kind_of(Array),
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"mergeability_merge_request_id" => merge_request.id,
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"correlation_id" => a_kind_of(String),
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"mergeability_project_id" => merge_request.project.id
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}.merge(extras)
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end
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describe '#instrument' do
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let(:operation_count) { 1 }
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context 'when enabled' do
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it "returns the block's value" do
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expect(logger.instrument(mergeability_name: :expensive_operation) { 123 }).to eq(123)
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end
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it 'records durations of instrumented operations' do
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expect_next_instance_of(Gitlab::AppJsonLogger) do |app_logger|
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expect(app_logger).to receive(:info).with(match(a_hash_including(loggable_data)))
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end
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expect(logger.instrument(mergeability_name: :expensive_operation) { 123 }).to eq(123)
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logger.commit
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end
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context 'with multiple observations' do
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let(:operation_count) { 2 }
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it 'records durations of instrumented operations' do
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expect_next_instance_of(Gitlab::AppJsonLogger) do |app_logger|
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expect(app_logger).to receive(:info).with(match(a_hash_including(loggable_data)))
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end
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2.times do
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expect(logger.instrument(mergeability_name: :expensive_operation) { 123 }).to eq(123)
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end
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logger.commit
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end
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end
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context 'when its a query' do
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let(:extra_data) do
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{
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'mergeability.expensive_operation.db_count.values' => a_kind_of(Array),
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'mergeability.expensive_operation.db_main_count.values' => a_kind_of(Array),
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'mergeability.expensive_operation.db_main_duration_s.values' => a_kind_of(Array),
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'mergeability.expensive_operation.db_primary_count.values' => a_kind_of(Array),
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'mergeability.expensive_operation.db_primary_duration_s.values' => a_kind_of(Array)
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}
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end
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context 'with a single query' do
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it 'includes SQL metrics' do
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expect_next_instance_of(Gitlab::AppJsonLogger) do |app_logger|
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expect(app_logger).to receive(:info).with(match(a_hash_including(loggable_data(**extra_data))))
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end
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expect(logger.instrument(mergeability_name: :expensive_operation) { MergeRequest.count }).to eq(1)
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logger.commit
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end
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end
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context 'with multiple queries' do
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it 'includes SQL metrics' do
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expect_next_instance_of(Gitlab::AppJsonLogger) do |app_logger|
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expect(app_logger).to receive(:info).with(match(a_hash_including(loggable_data(**extra_data))))
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end
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expect(logger.instrument(mergeability_name: :expensive_operation) { Project.count + MergeRequest.count })
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.to eq(2)
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logger.commit
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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 'raises an error when block is not provided' do
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expect { logger.instrument(mergeability_name: :expensive_operation) }
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.to raise_error(ArgumentError, 'block not given')
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end
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end
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end
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