Calculator Program

Simple command-line calculator for basic arithmetic operations.

Prerequisites

Install g++, make, gtest, lcov, lcov-cobertura (until lcov is natively supported):

sudo apt-get update
sudo apt-get install g++ cmake make lcov libgtest-dev
pip install lcov_cobertura

Build Google Test

cd /usr/src/gtest
sudo cmake CMakeLists.txt
sudo make
sudo find . -type f -name "*.a" -exec cp {} /usr/lib \;

Compile and Run

Compile the calculator:

cmake .
make

Run the calculator:

./calculator # get usage
./calculator --add 5 3  # Replace `--add 5 3` with your operation and operands

Testing

Compile the tests with coverage:

cmake .
make

Run tests and generate coverage report:

./test_calculator
lcov --capture --directory . --output-file coverage.info
lcov --remove coverage.info '/usr/*' '*/test_*' --output-file coverage_filtered.info
lcov --list coverage_filtered.info

See build_and_test_with_coverage.sh for a complete script to build and run the tests with coverage