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require 'flipper/adapters/instrumented'
require 'flipper/instrumenters/memory'
RSpec.describe Flipper::Adapters::Instrumented do
let(:instrumenter) { Flipper::Instrumenters::Memory.new }
let(:adapter) { Flipper::Adapters::Memory.new }
let(:flipper) { Flipper.new(adapter) }
let(:feature) { flipper[:stats] }
let(:gate) { feature.gate(:percentage_of_actors) }
let(:thing) { flipper.actors(22) }
subject do
described_class.new(adapter, instrumenter: instrumenter)
end
it_should_behave_like 'a flipper adapter'
it 'forwards missing methods to underlying adapter' do
adapter = Class.new do
def foo
:foo
end
end.new
instrumented = described_class.new(adapter)
expect(instrumented.foo).to eq(:foo)
end
describe '#name' do
it 'is instrumented' do
expect(subject.name).to be(:instrumented)
end
end
describe '#get' do
it 'records instrumentation' do
result = subject.get(feature)
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:get)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:feature_name]).to eq(:stats)
expect(event.payload[:result]).to be(result)
end
end
describe '#get_multi' do
it 'records instrumentation' do
result = subject.get_multi([feature])
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:get_multi)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:feature_names]).to eq([:stats])
expect(event.payload[:result]).to be(result)
end
end
describe '#enable' do
it 'records instrumentation' do
result = subject.enable(feature, gate, thing)
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:enable)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:feature_name]).to eq(:stats)
expect(event.payload[:gate_name]).to eq(:percentage_of_actors)
expect(event.payload[:thing_value]).to eq(22)
expect(event.payload[:result]).to be(result)
end
end
describe '#disable' do
it 'records instrumentation' do
result = subject.disable(feature, gate, thing)
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:disable)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:feature_name]).to eq(:stats)
expect(event.payload[:gate_name]).to eq(:percentage_of_actors)
expect(event.payload[:thing_value]).to eq(22)
expect(event.payload[:result]).to be(result)
end
end
describe '#add' do
it 'records instrumentation' do
result = subject.add(feature)
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:add)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:feature_name]).to eq(:stats)
expect(event.payload[:result]).to be(result)
end
end
describe '#remove' do
it 'records instrumentation' do
result = subject.remove(feature)
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:remove)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:feature_name]).to eq(:stats)
expect(event.payload[:result]).to be(result)
end
end
describe '#clear' do
it 'records instrumentation' do
result = subject.clear(feature)
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:clear)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:feature_name]).to eq(:stats)
expect(event.payload[:result]).to be(result)
end
end
describe '#features' do
it 'records instrumentation' do
result = subject.features
event = instrumenter.events.last
expect(event).not_to be_nil
expect(event.name).to eq('adapter_operation.flipper')
expect(event.payload[:operation]).to eq(:features)
expect(event.payload[:adapter_name]).to eq(:memory)
expect(event.payload[:result]).to be(result)
end
end
end
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