How to use

_conf

function

in

Agent

test('#startSpan() - not sampled', setup(function (t) {
 const agent = getAgent()
 agent._conf.transactionSampleRate = 0

 const tracer = new Tracer(agent)
 const span1 = tracer.startSpan()

 t.ok(span1, 'should return span')
 t.ok(span1._span, 'should hold reference to span/transaction')
 t.equal(span1._isTransaction, true, 'first span should be a transaction')
 t.equal(span1._span.sampled, false)

 const span2 = tracer.startSpan()

 t.ok(span2 instanceof UnsampledSpan)

 agent._conf.transactionSampleRate = 1

 t.end()
}))

test('#inject(noop, http, {})', setup(function (t) {
 const agent = getAgent()
 agent._conf.transactionSampleRate = 0

 const tracer = new Tracer(agent)

 const span1 = tracer.startSpan('foo')
 t.equal(span1._isTransaction, true)
 t.equal(span1._span.sampled, false)

 const span2 = tracer.startSpan('foo')
 t.ok(span2 instanceof UnsampledSpan)

 const carrier = {}

 tracer.inject(span2, opentracing.FORMAT_HTTP_HEADERS, carrier)

 t.equal(carrier['elastic-apm-traceparent'], span1.context().toString())

 agent._conf.transactionSampleRate = 1

 t.end()
}))