question: public void testDoublesRoundTrip ( ) { byte [ ] encoded = new byte [ Double . BYTES ] ; for ( int i = 0 ; i < 10000 ; i ++ ) { double value = Double . longBitsToDouble ( TestUtil . nextLong ( random ( ) , Long . MIN_VALUE , Long . MAX_VALUE ) ) ; NumericUtils . longToSortableBytes ( NumericUtils . doubleToSortableLong ( value ) , encoded , 0 ) ; double actual = NumericUtils . sortableLongToDouble ( NumericUtils . sortableBytesToLong ( encoded , 0 ) ) ; assertEquals ( Double . doubleToLongBits ( value ) , Double . doubleToLongBits ( actual ) ) ; } }
target:  test round-trip encoding of random doubles 