var binary = require('../'); var test = require('tap').test; test('negbs', function (t) { t.plan(4); // note: can't store -12667700813876161 exactly in an ieee float var buf = new Buffer([ 226, // a == -30 246, 219, // b == -2341 255, 243, 245, 236, // c == -789012 255, 210, 254, 203, 16, 222, 52, 63, // d == -12667700813876161 ]); binary.parse(buf) .word8bs('a') .word16bs('b') .word32bs('c') .word64bs('d') .tap(function (vars) { t.same(vars.a, -30); t.same(vars.b, -2341); t.same(vars.c, -789012); t.ok( Math.abs(vars.d - -12667700813876161) < 1500 ); }) ; });