assertNull(testBlock.getNext());
            assertFalse(testBlock.allowChain(mock(CommonServerMessageBlockRequest.class)));
            assertNull(testBlock.split());
            assertNull(testBlock.createCancel());
            assertNull(testBlock.getNextResponse());
            assertFalse(testBlock.isCancel());
            assertEquals(1, testBlock.getCreditCost());
            assertEquals(1, testBlock.getGrantedCredits());