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# frozen_string_literal: true
RSpec.describe Faraday::Request::Instrumentation do
class FakeInstrumenter
attr_reader :instrumentations
def initialize
@instrumentations = []
end
def instrument(name, env)
@instrumentations << [name, env]
yield
end
end
let(:config) { {} }
let(:options) { Faraday::Request::Instrumentation::Options.from config }
let(:instrumenter) { FakeInstrumenter.new }
let(:conn) do
Faraday.new do |f|
f.request :instrumentation, config.merge(instrumenter: instrumenter)
f.adapter :test do |stub|
stub.get '/' do
[200, {}, 'ok']
end
end
end
end
it { expect(options.name).to eq('request.faraday') }
it 'defaults to ActiveSupport::Notifications' do
res = options.instrumenter
rescue NameError => e
expect(e.to_s).to match('ActiveSupport')
else
expect(res).to eq(ActiveSupport::Notifications)
end
it 'instruments with default name' do
expect(instrumenter.instrumentations.size).to eq(0)
res = conn.get '/'
expect(res.body).to eq('ok')
expect(instrumenter.instrumentations.size).to eq(1)
name, env = instrumenter.instrumentations.first
expect(name).to eq('request.faraday')
expect(env[:url].path).to eq('/')
end
context 'with custom name' do
let(:config) { { name: 'custom' } }
it { expect(options.name).to eq('custom') }
it 'instruments with custom name' do
expect(instrumenter.instrumentations.size).to eq(0)
res = conn.get '/'
expect(res.body).to eq('ok')
expect(instrumenter.instrumentations.size).to eq(1)
name, env = instrumenter.instrumentations.first
expect(name).to eq('custom')
expect(env[:url].path).to eq('/')
end
end
context 'with custom instrumenter' do
let(:config) { { instrumenter: :custom } }
it { expect(options.instrumenter).to eq(:custom) }
end
end
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