@Test
  public void toDaysHoursMinutesSeconds_null_returnsEmptyString() throws Exception {
    assertThat(toDaysHoursMinutesSeconds(null)).isEqualTo("");
  }
Unit tests for {@link AbstractLauncher}.

@since GemFire 7.0
geode-core/src/test/java/org/apache/geode/distributed/AbstractLauncherTest.java