Correct test to use Unsigned version of function

Jan Breuer

2015-10-04 4133f2d8ba0d49c6d9a6a93650a81743aef81fa4

 .travis.yml

@@ -1,5 +1,9 @@
install:
        - sudo apt-get install libcunit1-dev
addons:
  apt:
    packages:
    - libcunit1-dev

sudo: false

script:
        - make test
    - make test