hash forward first 7 characters concode_field_sep PlaceHolder placeHolder concode_field_sep void testCollisionsFail concode_elem_sep void testGenNCollisions concode_elem_sep void testCompare2CollisionString concode_elem_sep void TestPrecomputedFileExists concode_elem_sep void MeetInTheMiddleHashBackTest concode_elem_sep void setUp concode_elem_sep void testGetHash concode_elem_sep void tearDown concode_elem_sep void testCollisionsOk concode_elem_sep void testReadRandomStringForCollision