@Test
  protected void getSpanNames_doesNotMapNameToRemoteServiceName(TestInfo testInfo)
    throws Exception {
    String testSuffix = testSuffix(testInfo);
    Span clientSpan = newClientSpan(testSuffix);

    accept(clientSpan);

    assertThat(names().getSpanNames(clientSpan.remoteServiceName()).execute())
      .isEmpty();
  }
Ensures the service name index returns distinct results
zipkin-tests/src/main/java/zipkin2/storage/ITServiceAndSpanNames.java