@Test
    public void testRemoveKeys() throws Exception {
        setUpPrettyFullBufferWithChangingEbc(6);
        setUpDeepKey(104);
        int foundAt1 = b1.findKey(ex.getKey());
        setUpDeepKey(112);
        int foundAt2 = b1.findKey(ex.getKey());
        if ((foundAt1 & Buffer.P_MASK) > (foundAt2 & Buffer.P_MASK)) {
            int t = foundAt1;
            foundAt1 = foundAt2;
            foundAt2 = t;
        }
        b1.removeKeys(foundAt1, foundAt1, ex.getAuxiliaryKey1());
        assertTrue("Verify failed", b1.verify(null, null) == null);
        b1.removeKeys(foundAt1 & ~EXACT_MASK, foundAt2, ex.getAuxiliaryKey1());
    }