diff options
Diffstat (limited to 'spec/support/shared_examples/metrics/active_record_subscriber_shared_examples.rb')
| -rw-r--r-- | spec/support/shared_examples/metrics/active_record_subscriber_shared_examples.rb | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/spec/support/shared_examples/metrics/active_record_subscriber_shared_examples.rb b/spec/support/shared_examples/metrics/active_record_subscriber_shared_examples.rb new file mode 100644 index 00000000000..7bf2456c548 --- /dev/null +++ b/spec/support/shared_examples/metrics/active_record_subscriber_shared_examples.rb @@ -0,0 +1,137 @@ +# frozen_string_literal: true + +RSpec.shared_examples 'store ActiveRecord info in RequestStore' do |db_role| + it 'prevents db counters from leaking to the next transaction' do + 2.times do + Gitlab::WithRequestStore.with_request_store do + subscriber.sql(event) + + if db_role == :primary + expect(described_class.db_counter_payload).to eq( + db_count: record_query ? 1 : 0, + db_write_count: record_write_query ? 1 : 0, + db_cached_count: record_cached_query ? 1 : 0, + db_primary_cached_count: record_cached_query ? 1 : 0, + db_primary_count: record_query ? 1 : 0, + db_primary_duration_s: record_query ? 0.002 : 0, + db_replica_cached_count: 0, + db_replica_count: 0, + db_replica_duration_s: 0.0 + ) + elsif db_role == :replica + expect(described_class.db_counter_payload).to eq( + db_count: record_query ? 1 : 0, + db_write_count: record_write_query ? 1 : 0, + db_cached_count: record_cached_query ? 1 : 0, + db_primary_cached_count: 0, + db_primary_count: 0, + db_primary_duration_s: 0.0, + db_replica_cached_count: record_cached_query ? 1 : 0, + db_replica_count: record_query ? 1 : 0, + db_replica_duration_s: record_query ? 0.002 : 0 + ) + else + expect(described_class.db_counter_payload).to eq( + db_count: record_query ? 1 : 0, + db_write_count: record_write_query ? 1 : 0, + db_cached_count: record_cached_query ? 1 : 0 + ) + end + end + end + end +end + +RSpec.shared_examples 'record ActiveRecord metrics in a metrics transaction' do |db_role| + it 'increments only db counters' do + if record_query + expect(transaction).to receive(:increment).with(:gitlab_transaction_db_count_total, 1) + expect(transaction).to receive(:increment).with("gitlab_transaction_db_#{db_role}_count_total".to_sym, 1) if db_role + else + expect(transaction).not_to receive(:increment).with(:gitlab_transaction_db_count_total, 1) + expect(transaction).not_to receive(:increment).with("gitlab_transaction_db_#{db_role}_count_total".to_sym, 1) if db_role + end + + if record_write_query + expect(transaction).to receive(:increment).with(:gitlab_transaction_db_write_count_total, 1) + else + expect(transaction).not_to receive(:increment).with(:gitlab_transaction_db_write_count_total, 1) + end + + if record_cached_query + expect(transaction).to receive(:increment).with(:gitlab_transaction_db_cached_count_total, 1) + expect(transaction).to receive(:increment).with("gitlab_transaction_db_#{db_role}_cached_count_total".to_sym, 1) if db_role + else + expect(transaction).not_to receive(:increment).with(:gitlab_transaction_db_cached_count_total, 1) + expect(transaction).not_to receive(:increment).with("gitlab_transaction_db_#{db_role}_cached_count_total".to_sym, 1) if db_role + end + + subscriber.sql(event) + end + + it 'observes sql_duration metric' do + if record_query + expect(transaction).to receive(:observe).with(:gitlab_sql_duration_seconds, 0.002) + expect(transaction).to receive(:observe).with("gitlab_sql_#{db_role}_duration_seconds".to_sym, 0.002) if db_role + else + expect(transaction).not_to receive(:observe) + end + + subscriber.sql(event) + end +end + +RSpec.shared_examples 'record ActiveRecord metrics' do |db_role| + context 'when both web and background transaction are available' do + let(:transaction) { double('Gitlab::Metrics::WebTransaction') } + let(:background_transaction) { double('Gitlab::Metrics::WebTransaction') } + + before do + allow(::Gitlab::Metrics::WebTransaction).to receive(:current) + .and_return(transaction) + allow(::Gitlab::Metrics::BackgroundTransaction).to receive(:current) + .and_return(background_transaction) + allow(transaction).to receive(:increment) + allow(transaction).to receive(:observe) + end + + it_behaves_like 'record ActiveRecord metrics in a metrics transaction', db_role + + it 'captures the metrics for web only' do + expect(background_transaction).not_to receive(:observe) + expect(background_transaction).not_to receive(:increment) + + subscriber.sql(event) + end + end + + context 'when web transaction is available' do + let(:transaction) { double('Gitlab::Metrics::WebTransaction') } + + before do + allow(::Gitlab::Metrics::WebTransaction).to receive(:current) + .and_return(transaction) + allow(::Gitlab::Metrics::BackgroundTransaction).to receive(:current) + .and_return(nil) + allow(transaction).to receive(:increment) + allow(transaction).to receive(:observe) + end + + it_behaves_like 'record ActiveRecord metrics in a metrics transaction', db_role + end + + context 'when background transaction is available' do + let(:transaction) { double('Gitlab::Metrics::BackgroundTransaction') } + + before do + allow(::Gitlab::Metrics::WebTransaction).to receive(:current) + .and_return(nil) + allow(::Gitlab::Metrics::BackgroundTransaction).to receive(:current) + .and_return(transaction) + allow(transaction).to receive(:increment) + allow(transaction).to receive(:observe) + end + + it_behaves_like 'record ActiveRecord metrics in a metrics transaction', db_role + end +end |