• Ubuntu 20.04

1. download googletest

    git clone https://github.com/google/googletest
    
    cd googletest
    
    sudo apt install g++
   
    cmake -DCMAKE_CXX_FLAGS=-std=c++11 -Dgtest_build_samples=ON
    
    make -j4
   

   output library is lib/libgtest.a

   header files at googletest/googletest/include/

2. compile test sample

    make clean; make
   

3. execute test

    ./test_xml_module
   

reference