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package kamon.trace
import kamon.Kamon
import kamon.context.Context
import kamon.testkit.SpanInspection
import org.scalatest.{Matchers, WordSpec}
class SpanCustomizerSpec extends WordSpec with Matchers with SpanInspection {
"a SpanCustomizer" should {
"default to a Noop implementation when none is in the context" in {
val noopCustomizer = Context.Empty.get(SpanCustomizer.ContextKey)
val spanBuilder = noopCustomizer.customize(Kamon.buildSpan("noop"))
val span = inspect(spanBuilder.start())
span.operationName() shouldBe "noop"
span.metricTags() shouldBe empty
span.spanTags() shouldBe empty
}
"have a simple builder for customizing the operation name" in {
val operationNameCustomizer = SpanCustomizer.forOperationName("myCustomOperationName")
val spanBuilder = operationNameCustomizer.customize(Kamon.buildSpan("noop"))
val span = inspect(spanBuilder.start())
span.operationName() shouldBe "myCustomOperationName"
span.metricTags() shouldBe empty
span.spanTags() shouldBe empty
}
}
}
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