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And the contents of the operation.cpp looks like this:

#include "operations.h"

float divide(int numerator, int denominator){
    if(denominator == 0){
        throw std::overflow_error("Divide by zero exception!!! Verify the denominator value!");
    }
    return float(numerator) / float(denominator);
}

float divide(float numerator, float denominator){
    if(abs(denominator) <= 1e-5){
        throw std::overflow_error("Divide by zero exception!!! The denominator value close to zero!");
    }
    return numerator / denominator;
}

The presented function has a verification mechanism whether the divisor (denominator) is equal to zero, or in the case of a floating point number, it is close to zero.

_tests:

We also need to create a folder for our tests. In this tutorial, this folder is called tst. To start writing tests, we will create run_tests.cpp and test_operations.cpp. We want GoogleTest to search for test files automatically, and we do this thanks to the code stored in the run_tests.cpp source file. Typically, this code will be universal for all kinds of projects:

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