### Question:
TransactionManagerFactory { public static TransactionManagerFactory getInstance() { return INSTANCE; } private  TransactionManagerFactory(); static TransactionManagerFactory getInstance(); PlatformTransactionManager create(); static final String JBOSS_USER_TRANSACTION; static final String JBOSS_TRANSACTION_MANANGER; static final String JBOSS_TRANSACTION_SYNC_REG; static final String OSGI_TRANSACTION_MANAGER; static final String TM; }### Answer:
@Test public void getInstance() { final TransactionManagerFactory factory = TransactionManagerFactory.getInstance(); assertThat(factory, is(notNullValue())); }