public LoggingConfiguration setVerbose(boolean verbose) {
    return setRootLevel(verbose ? LEVEL_ROOT_VERBOSE : LEVEL_ROOT_DEFAULT);
  }
@Test
  public void testSetVerbose() {
    assertThat(new LoggingConfiguration(null).setVerbose(true)
      .getSubstitutionVariable(LoggingConfiguration.PROPERTY_ROOT_LOGGER_LEVEL)).isEqualTo(LoggingConfiguration.LEVEL_ROOT_VERBOSE);

    assertThat(new LoggingConfiguration(null).setVerbose(false)
      .getSubstitutionVariable(LoggingConfiguration.PROPERTY_ROOT_LOGGER_LEVEL)).isEqualTo(LoggingConfiguration.LEVEL_ROOT_DEFAULT);

    assertThat(new LoggingConfiguration(null).setRootLevel("ERROR")
      .getSubstitutionVariable(LoggingConfiguration.PROPERTY_ROOT_LOGGER_LEVEL)).isEqualTo("ERROR");
  }