get gtest
---------
get gtest from googlecode.com

  wget https://googletest.googlecode.com/files/gtest-1.7.0.zip

unzip it and put it in source/gtest

  unzip gtest-1.7.0.zip
  mv gtest-1.7.0 gtest

build the tests

  mkdir build && cd build
  cmake ../source
  make -j8
