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require 'spec_helper'
describe Jaeger::Injectors::JaegerRackCodec do
let(:tracer) do
Jaeger::Tracer.new(
reporter: instance_spy(Jaeger::Reporters::RemoteReporter),
sampler: Jaeger::Samplers::Const.new(true),
injectors: Jaeger::Injectors.prepare({}),
extractors: Jaeger::Extractors.prepare({})
)
end
let(:span) { tracer.start_span('test') }
it 'sets trace information' do
carrier = {}
inject(span, carrier)
expect(carrier['uber-trace-id']).to eq(
[
span.context.trace_id.to_s(16),
span.context.span_id.to_s(16),
span.context.parent_id.to_s(16),
span.context.flags.to_s(16)
].join('%3A')
)
end
it 'sets baggage' do
span.set_baggage_item('foo', 'bar')
span.set_baggage_item('x', 'y')
carrier = {}
inject(span, carrier)
expect(carrier['uberctx-foo']).to eq('bar')
expect(carrier['uberctx-x']).to eq('y')
end
def inject(span, carrier)
described_class.inject(span.context, carrier)
end
end
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