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Diffstat (limited to 'spec/lib/gitlab/metrics/transaction_spec.rb')
-rw-r--r-- | spec/lib/gitlab/metrics/transaction_spec.rb | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/spec/lib/gitlab/metrics/transaction_spec.rb b/spec/lib/gitlab/metrics/transaction_spec.rb new file mode 100644 index 00000000000..b9b94947afa --- /dev/null +++ b/spec/lib/gitlab/metrics/transaction_spec.rb @@ -0,0 +1,89 @@ +require 'spec_helper' + +describe Gitlab::Metrics::Transaction do + let(:transaction) { described_class.new } + + describe '#duration' do + it 'returns the duration of a transaction in seconds' do + transaction.run { sleep(0.5) } + + expect(transaction.duration).to be >= 0.5 + end + end + + describe '#run' do + it 'yields the supplied block' do + expect { |b| transaction.run(&b) }.to yield_control + end + + it 'stores the transaction in the current thread' do + transaction.run do + expect(Thread.current[described_class::THREAD_KEY]).to eq(transaction) + end + end + + it 'removes the transaction from the current thread upon completion' do + transaction.run { } + + expect(Thread.current[described_class::THREAD_KEY]).to be_nil + end + end + + describe '#add_metric' do + it 'adds a metric tagged with the transaction UUID' do + expect(Gitlab::Metrics::Metric).to receive(:new). + with('rails_foo', { number: 10 }, { transaction_id: transaction.uuid }) + + transaction.add_metric('foo', number: 10) + end + end + + describe '#increment' do + it 'increments a counter' do + transaction.increment(:time, 1) + transaction.increment(:time, 2) + + expect(transaction).to receive(:add_metric). + with('transactions', { duration: 0.0, time: 3 }, {}) + + transaction.track_self + end + end + + describe '#add_tag' do + it 'adds a tag' do + transaction.add_tag(:foo, 'bar') + + expect(transaction.tags).to eq({ foo: 'bar' }) + end + end + + describe '#finish' do + it 'tracks the transaction details and submits them to Sidekiq' do + expect(transaction).to receive(:track_self) + expect(transaction).to receive(:submit) + + transaction.finish + end + end + + describe '#track_self' do + it 'adds a metric for the transaction itself' do + expect(transaction).to receive(:add_metric). + with('transactions', { duration: transaction.duration }, {}) + + transaction.track_self + end + end + + describe '#submit' do + it 'submits the metrics to Sidekiq' do + transaction.track_self + + expect(Gitlab::Metrics).to receive(:submit_metrics). + with([an_instance_of(Hash)]) + + transaction.submit + end + end +end |