question: public void testRadix2Neg ( ) { String value = "-101001100010010001001010101110000101010110001010010101010101010101010101010101010101010101010010101" ; int radix = 2 ; BigInteger aNumber = new BigInteger ( value , radix ) ; String result = aNumber . toString ( radix ) ; assertTrue ( result . equals ( value ) ) ; }
target:  test negative number of radix 2