Defining command line options in CMakeLists.txt

Question

I have created small project for using catch2 testing framework. I set the specific command line option called --use-colour to yes in terminal like below:

root@ramil-instance:~/testing/build# ./testing --use-colour yes

How can I define this command line option in CMakeLists.txt file instead of terminal

This is my CMakeLists.txt file:

cmake_minimum_required(VERSION 3.0)

set(CMAKE_BUILD_TYPE Debug)

project(testing)

add_executable(
    testing
    test.cpp
)