Improve Vert.x Redis stable metric test (#19009)

Author: trask

instrumentation/vertx/vertx-redis-client-4.0/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/vertx/redisclient/v4_0/VertxRedisClientTest.java

@@ -6,6 +6,7 @@
 package io.opentelemetry.javaagent.instrumentation.vertx.redisclient.v4_0;
 
 import static io.opentelemetry.instrumentation.api.internal.SemconvStability.emitStableDatabaseSemconv;
+import static io.opentelemetry.instrumentation.testing.junit.db.DbClientMetricsTestUtil.assertDurationMetric;
 import static io.opentelemetry.instrumentation.testing.junit.service.SemconvServiceStabilityUtil.maybeStablePeerService;
 import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.equalTo;
 import static io.opentelemetry.semconv.DbAttributes.DB_NAMESPACE;
@@ -89,11 +90,16 @@ void setCommand() throws Exception {
                         .hasKind(SpanKind.CLIENT)
                         .hasAttributesSatisfyingExactly(redisSpanAttributes("SET", "SET foo ?"))));
 
-    if (emitStableDatabaseSemconv()) {
-      testing.waitAndAssertMetrics(
-          "io.opentelemetry.vertx-redis-client-4.0",
-          metric -> metric.hasName("db.client.operation.duration"));
-    }
+    assertDurationMetric(
+        testing,
+        "io.opentelemetry.vertx-redis-client-4.0",
+        DB_SYSTEM_NAME,
+        DB_OPERATION_NAME,
+        DB_NAMESPACE,
+        SERVER_ADDRESS,
+        SERVER_PORT,
+        NETWORK_PEER_ADDRESS,
+        NETWORK_PEER_PORT);
   }
 
   @Test