DistroResourceAttributesTest.java

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 *   http://www.apache.org/licenses/LICENSE-2.0
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import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.assertThat;

import io.opentelemetry.api.GlobalOpenTelemetry;
import io.opentelemetry.api.trace.Span;
import io.opentelemetry.instrumentation.testing.junit.AgentInstrumentationExtension;
import io.opentelemetry.sdk.resources.Resource;
import io.opentelemetry.semconv.TelemetryAttributes;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.RegisterExtension;

public class DistroResourceAttributesTest {

  @RegisterExtension
  static final AgentInstrumentationExtension testing = AgentInstrumentationExtension.create();

  @Test
  public void checkDistroName() {
    Span testSpan =
        GlobalOpenTelemetry.get().getTracer("dummy-tracer").spanBuilder("testSpan").startSpan();
    testSpan.end();
    assertThat(testing.spans()).hasSize(1);
    Resource resource = testing.spans().get(0).getResource();

    boolean isRunningDistro = System.getProperty("otel.javaagent.extensions") == null;

    if (isRunningDistro) {
      assertThat(resource.getAttributes())
          .containsEntry(TelemetryAttributes.TELEMETRY_DISTRO_NAME, "elastic");
      assertThat(resource.getAttributes())
          .containsKey(TelemetryAttributes.TELEMETRY_DISTRO_VERSION);
    } else {
      // we are running with the vanilla agent as extension: we should not be setting the distro
      // name
      assertThat(resource.getAttributes())
          .doesNotContainKey(TelemetryAttributes.TELEMETRY_DISTRO_NAME);
      assertThat(resource.getAttributes())
          .doesNotContainKey(TelemetryAttributes.TELEMETRY_DISTRO_VERSION);
    }
  }
}