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|
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::Transaction::Observer do
# Use the delete DB strategy so that the test won't be wrapped in a transaction
describe '.instrument_transactions', :delete do
let(:transaction_context) { ActiveRecord::Base.connection.transaction_manager.transaction_context }
let(:context) { transaction_context.context }
around do |example|
# Emulate production environment when SQL comments come first to avoid truncation
Marginalia::Comment.prepend_comment = true
subscriber = described_class.register!
example.run
ActiveSupport::Notifications.unsubscribe(subscriber)
Marginalia::Comment.prepend_comment = false
end
it 'tracks transaction data', :aggregate_failures do
ActiveRecord::Base.transaction do
ActiveRecord::Base.transaction(requires_new: true) do
User.first
expect(transaction_context).to be_a(::Gitlab::Database::Transaction::Context)
expect(context.keys).to match_array(%i(start_time depth savepoints queries backtraces external_http_count_start external_http_duration_start))
expect(context[:depth]).to eq(2)
expect(context[:savepoints]).to eq(1)
expect(context[:queries].length).to eq(1)
end
end
expect(context[:depth]).to eq(2)
expect(context[:savepoints]).to eq(1)
expect(context[:releases]).to eq(1)
expect(context[:backtraces].length).to eq(1)
end
describe 'tracking external network requests', :request_store do
it 'tracks external requests' do
perform_stubbed_external_http_request(duration: 0.25)
perform_stubbed_external_http_request(duration: 1.25)
ActiveRecord::Base.transaction do
User.first
expect(context[:external_http_count_start]).to eq(2)
expect(context[:external_http_duration_start]).to eq(1.5)
perform_stubbed_external_http_request(duration: 1)
perform_stubbed_external_http_request(duration: 3)
expect(transaction_context.external_http_requests_count).to eq 2
expect(transaction_context.external_http_requests_duration).to eq 4
end
end
context 'when external HTTP requests duration has been exceeded' do
it 'logs transaction details including exceeding thresholds' do
expect(Gitlab::AppJsonLogger).to receive(:info).with(
hash_including(
external_http_requests_count: 2,
external_http_requests_duration: 12
)
)
ActiveRecord::Base.transaction do
User.first
perform_stubbed_external_http_request(duration: 2)
perform_stubbed_external_http_request(duration: 10)
end
end
end
context 'when external HTTP requests count has been exceeded' do
it 'logs transaction details including exceeding thresholds' do
expect(Gitlab::AppJsonLogger).to receive(:info).with(
hash_including(external_http_requests_count: 55)
)
ActiveRecord::Base.transaction do
User.first
55.times { perform_stubbed_external_http_request(duration: 0.01) }
end
end
end
def perform_stubbed_external_http_request(duration:)
::Gitlab::Metrics::Subscribers::ExternalHttp.new.request(
instance_double(
'ActiveSupport::Notifications::Event',
payload: {
method: 'GET', code: '200', duration: duration,
scheme: 'http', host: 'example.gitlab.com', port: 80, path: '/'
},
time: Time.current
)
)
end
end
describe '.extract_sql_command' do
using RSpec::Parameterized::TableSyntax
where(:sql, :expected) do
'SELECT 1' | 'SELECT 1'
'/* test comment */ SELECT 1' | 'SELECT 1'
'/* test comment */ ROLLBACK TO SAVEPOINT point1' | 'ROLLBACK TO SAVEPOINT '
'SELECT 1 /* trailing comment */' | 'SELECT 1 /* trailing comment */'
end
with_them do
it do
expect(described_class.extract_sql_command(sql)).to eq(expected)
end
end
end
end
end
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