@Test
  public void serviceStateMarshalsToAndFromJsonWhenOnline() {
    launcher.setStatus(ONLINE);
    TestLauncher.TestState status = launcher.status();
    String json = status.toJson();
    validateJson(status, json);
    validateStatus(status, TestLauncher.TestState.fromJson(json));
  }
Unit tests for {@link AbstractLauncher.ServiceState}. Tests marshalling of ServiceState to and
from JSON.

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