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# encoding: UTF-8
require 'prometheus/client/summary'
require 'examples/metric_example'
describe Prometheus::Client::Summary do
let(:summary) { Prometheus::Client::Summary.new(:bar, 'bar description') }
it_behaves_like Prometheus::Client::Metric do
let(:type) { Float }
end
describe '#observe' do
it 'records the given value' do
expect do
summary.observe({}, 5)
end.to change { summary.get }
end
end
xdescribe '#get' do
before do
summary.observe({ foo: 'bar' }, 3)
summary.observe({ foo: 'bar' }, 5.2)
summary.observe({ foo: 'bar' }, 13)
summary.observe({ foo: 'bar' }, 4)
end
it 'returns a set of quantile values' do
expect(summary.get(foo: 'bar')).to eql(0.5 => 4, 0.9 => 5.2, 0.99 => 5.2)
end
it 'returns a value which responds to #sum and #total' do
value = summary.get(foo: 'bar')
expect(value.sum).to eql(25.2)
expect(value.total).to eql(4)
end
it 'uses nil as default value' do
expect(summary.get({})).to eql(0.5 => nil, 0.9 => nil, 0.99 => nil)
end
end
xdescribe '#values' do
it 'returns a hash of all recorded summaries' do
summary.observe({ status: 'bar' }, 3)
summary.observe({ status: 'foo' }, 5)
expect(summary.values).to eql(
{ status: 'bar' } => { 0.5 => 3, 0.9 => 3, 0.99 => 3 },
{ status: 'foo' } => { 0.5 => 5, 0.9 => 5, 0.99 => 5 },
)
end
end
end
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