@Test
  public void testGetArchiveFileSizeLimit() {
    String value = String.valueOf(DistributionConfig.MIN_ARCHIVE_FILE_SIZE_LIMIT);
    Properties props = new Properties();
    // a loner is all this test needs
    props.setProperty(MCAST_PORT, "0");
    props.setProperty(LOCATORS, "");
    props.put(ARCHIVE_FILE_SIZE_LIMIT, value);
    DistributionConfig config = createSystem(props).getConfig();
    assertThat(Integer.parseInt(value)).isEqualTo(config.getArchiveFileSizeLimit());
  }
Tests that getting the log level is what we expect.
geode-core/src/integrationTest/java/org/apache/geode/distributed/internal/InternalDistributedSystemIntegrationTest.java