test: confirm behavior of repo span attribute

Author: diegomarquezp

java-showcase/gapic-showcase/src/test/java/com/google/showcase/v1beta1/it/ITOtelTracing.java

@@ -60,6 +60,7 @@
 class ITOtelTracing {
   private static final String SHOWCASE_SERVER_PORT = "7469";
   private static final String SHOWCASE_SERVER_ADDRESS = "localhost";
+  private static final String SHOWCASE_CLIENT_REPO = "googleapis/sdk-platform-java";
 
   private InMemorySpanExporter spanExporter;
   private OpenTelemetrySdk openTelemetrySdk;
@@ -123,6 +124,11 @@ void testTracing_successfulEcho_grpc() throws Exception {
                   .getAttributes()
                   .get(AttributeKey.stringKey(OpenTelemetryTracingTracer.SERVER_ADDRESS_ATTRIBUTE)))
           .isEqualTo(SHOWCASE_SERVER_ADDRESS);
+      assertThat(
+              attemptSpan
+                  .getAttributes()
+                  .get(AttributeKey.stringKey(OpenTelemetryTracingTracer.REPO_ATTRIBUTE)))
+          .isEqualTo(SHOWCASE_CLIENT_REPO);
     }
   }
 
@@ -154,6 +160,11 @@ void testTracing_successfulEcho_httpjson() throws Exception {
                   .getAttributes()
                   .get(AttributeKey.stringKey(OpenTelemetryTracingTracer.SERVER_ADDRESS_ATTRIBUTE)))
           .isEqualTo(SHOWCASE_SERVER_ADDRESS);
+      assertThat(
+              attemptSpan
+                  .getAttributes()
+                  .get(AttributeKey.stringKey(OpenTelemetryTracingTracer.REPO_ATTRIBUTE)))
+          .isEqualTo(SHOWCASE_CLIENT_REPO);
     }
   }