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Diffstat (limited to 'spec/lib/gitlab/metrics/method_call_spec.rb')
-rw-r--r-- | spec/lib/gitlab/metrics/method_call_spec.rb | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/spec/lib/gitlab/metrics/method_call_spec.rb b/spec/lib/gitlab/metrics/method_call_spec.rb new file mode 100644 index 00000000000..8d05081eecb --- /dev/null +++ b/spec/lib/gitlab/metrics/method_call_spec.rb @@ -0,0 +1,91 @@ +require 'spec_helper' + +describe Gitlab::Metrics::MethodCall do + let(:method_call) { described_class.new('Foo#bar', 'foo') } + + describe '#measure' do + it 'measures the performance of the supplied block' do + method_call.measure { 'foo' } + + expect(method_call.real_time).to be_a_kind_of(Numeric) + expect(method_call.cpu_time).to be_a_kind_of(Numeric) + expect(method_call.call_count).to eq(1) + end + end + + describe '#to_metric' do + it 'returns a Metric instance' do + method_call.measure { 'foo' } + metric = method_call.to_metric + + expect(metric).to be_an_instance_of(Gitlab::Metrics::Metric) + expect(metric.series).to eq('foo') + + expect(metric.values[:duration]).to be_a_kind_of(Numeric) + expect(metric.values[:cpu_duration]).to be_a_kind_of(Numeric) + expect(metric.values[:call_count]).to an_instance_of(Fixnum) + + expect(metric.tags).to eq({ method: 'Foo#bar' }) + end + end + + describe '#above_threshold?' do + it 'returns false when the total call time is not above the threshold' do + expect(method_call.above_threshold?).to eq(false) + end + + it 'returns true when the total call time is above the threshold' do + expect(method_call).to receive(:real_time).and_return(9000) + + expect(method_call.above_threshold?).to eq(true) + end + end + + describe '#call_count' do + context 'without any method calls' do + it 'returns 0' do + expect(method_call.call_count).to eq(0) + end + end + + context 'with method calls' do + it 'returns the number of method calls' do + method_call.measure { 'foo' } + + expect(method_call.call_count).to eq(1) + end + end + end + + describe '#cpu_time' do + context 'without timings' do + it 'returns 0.0' do + expect(method_call.cpu_time).to eq(0.0) + end + end + + context 'with timings' do + it 'returns the total CPU time' do + method_call.measure { 'foo' } + + expect(method_call.cpu_time >= 0.0).to be(true) + end + end + end + + describe '#real_time' do + context 'without timings' do + it 'returns 0.0' do + expect(method_call.real_time).to eq(0.0) + end + end + + context 'with timings' do + it 'returns the total real time' do + method_call.measure { 'foo' } + + expect(method_call.real_time >= 0.0).to be(true) + end + end + end +end |