TransactionManagerImpl tm;
MockResourceManager mrm1, mrm2;
MockResource mr11, mr12, mr21, mr22;
protected void setUp() throws Exception {
tm = new TransactionManagerImpl(10, new UnrecoverableLog(), xidFactory);
mrm1 = new MockResourceManager(true);
mrm2 = new MockResourceManager(true);
mr11 = new MockResource(mrm1, "mr11");
mr12 = new MockResource(mrm1, "mr12");
mr21 = new MockResource(mrm2, "mr21");