protected static String testSuffix(TestInfo testInfo) {
    String result;
    if (testInfo.getTestMethod().isPresent()) {
      result = testInfo.getTestMethod().get().getName();
    } else {
      assert testInfo.getTestClass().isPresent();
      result = testInfo.getTestClass().get().getSimpleName();
    }
    result = result.toLowerCase();
    return result.length() <= 48 ? result : result.substring(result.length() - 48);
  }
Used to help tests from colliding too much
zipkin-tests/src/main/java/zipkin2/storage/ITStorage.java