### Question:
InstallStatusEvent { public void setType(InstallEventType type) { Utilities.checkNull("setType", "type", type); this._type = type; } InstallStatusEvent(InstallEventType type); String getArtifactName(); void setArtifactName(String name); InstallEventType getType(); void setType(InstallEventType type); void setNumFilesToUpdate(int numFilesToUpdate); int getNumFilesToUpdate();  }### Answer:
@Test public final void testSetType() { classUnderTest = new InstallStatusEvent(BACKUP_COMPLETE); classUnderTest.setType(BACKUP_STARTED); assertEquals(BACKUP_STARTED, classUnderTest.getType()); }