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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::Transaction::Context do
subject { described_class.new }
let(:data) { subject.context }
before do
stub_const("#{described_class}::LOG_THROTTLE", 100)
end
describe '#set_start_time' do
before do
subject.set_start_time
end
it 'sets start_time' do
expect(data).to have_key(:start_time)
end
end
describe '#increment_savepoints' do
before do
2.times { subject.increment_savepoints }
end
it { expect(data[:savepoints]).to eq(2) }
end
describe '#increment_rollbacks' do
before do
3.times { subject.increment_rollbacks }
end
it { expect(data[:rollbacks]).to eq(3) }
end
describe '#increment_releases' do
before do
4.times { subject.increment_releases }
end
it { expect(data[:releases]).to eq(4) }
end
describe '#set_depth' do
before do
subject.set_depth(2)
end
it { expect(data[:depth]).to eq(2) }
end
describe '#track_sql' do
before do
subject.track_sql('SELECT 1')
subject.track_sql('SELECT * FROM users')
end
it { expect(data[:queries]).to eq(['SELECT 1', 'SELECT * FROM users']) }
end
describe '#track_backtrace' do
before do
subject.track_backtrace(caller)
end
it { expect(data[:backtraces]).to be_a(Array) }
it { expect(data[:backtraces]).to all(be_a(Array)) }
it { expect(data[:backtraces].length).to eq(1) }
it { expect(data[:backtraces][0][0]).to be_a(String) }
it 'appends the backtrace' do
subject.track_backtrace(caller)
expect(data[:backtraces].length).to eq(2)
expect(subject.backtraces).to be_a(Array)
expect(subject.backtraces).to all(be_a(Array))
expect(subject.backtraces[1][0]).to be_a(String)
end
end
describe '#duration' do
before do
subject.set_start_time
end
it { expect(subject.duration).to be >= 0 }
end
shared_examples 'logs transaction data' do
it 'logs once upon COMMIT' do
expect(subject).to receive(:application_info).and_call_original
2.times { subject.commit }
end
it 'logs once upon ROLLBACK' do
expect(subject).to receive(:application_info).once
2.times { subject.rollback }
end
it 'logs again when log throttle duration passes' do
expect(subject).to receive(:application_info).twice.and_call_original
2.times { subject.commit }
data[:last_log_timestamp] -= (described_class::LOG_THROTTLE_DURATION + 1)
subject.commit
end
it '#should_log? returns true' do
expect(subject.should_log?).to be true
end
end
context 'when savepoints count exceeds threshold' do
before do
data[:savepoints] = 1
end
it_behaves_like 'logs transaction data'
end
context 'when duration exceeds threshold' do
before do
subject.set_start_time
data[:start_time] -= (described_class::LOG_DURATION_S_THRESHOLD + 1)
end
it_behaves_like 'logs transaction data'
end
context 'when there are too many external HTTP requests' do
before do
allow(::Gitlab::Metrics::Subscribers::ExternalHttp)
.to receive(:request_count)
.and_return(100)
end
it_behaves_like 'logs transaction data'
end
context 'when there are too many too long external HTTP requests' do
before do
allow(::Gitlab::Metrics::Subscribers::ExternalHttp)
.to receive(:duration)
.and_return(5.5)
end
it_behaves_like 'logs transaction data'
end
end
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