@Test
    public void testFindKey() throws PersistitException {
        setUpPrettyFullBufferWithChangingEbc(RED_FOX.length());
        setUpDeepKey(10);
        int foundAt = b1.findKey(ex.getKey());
        assertTrue("Must be an exact match", (foundAt & EXACT_MASK) != 0);
        ex.append("z");
        foundAt = b1.findKey(ex.getKey());
        assertFalse("Must not be an exact match", (foundAt & EXACT_MASK) != 0);
    }