You can find my test program here http://www.briangough.ukfsn.org/unsymm/ It's not totally finished, example output below.
-- Brian Gough Network Theory Ltd, Publishing Free Software Manuals --- http://www.network-theory.co.uk/ $ ./a.out -n 3 -i -l -1 -u 1 testing N=3 incrementally on element range [-1,1] ==== CASE 17 ========================== A = [ 0, 1, 0; -1, -1, -1; -1, -1, -1; ] === eval - lapack dgees === -1.813985266369727769e-32 0.000000000000000000e+00 -9.999999999999996669e-01 1.950115636758225308e-08 -9.999999999999996669e-01 -1.950115636758225308e-08 === eval - alken === -6.631056343480628004e-33 0.000000000000000000e+00 -9.999999999999997780e-01 1.633303231307825499e-08 -9.999999999999997780e-01 -1.633303231307825499e-08 max abserr = 3.16812e-09 max relerr = 0.162458
