
#define CATCH_CONFIG_MAIN
#include <catch2/catch.hpp>


int sumArray(const int arr[], int size);

TEST_CASE("Sum of positive numbers", "[sumArray]") {
    int arr[] = {1, 2, 3, 4, 5};
    REQUIRE(sumArray(arr, 5) == 15);
}

TEST_CASE("Sum with negative numbers", "[sumArray]") {
    int arr[] = {-2, 4, -1, 3, 0};
    REQUIRE(sumArray(arr, 5) == 4);
}

TEST_CASE("Sum of single element array", "[sumArray]") {
    int arr[] = {42};
    REQUIRE(sumArray(arr, 1) == 42);
}

TEST_CASE("Sum of empty array is zero", "[sumArray]") {
    int arr[] = {};
    REQUIRE(sumArray(arr, 0) == 0);
}

TEST_CASE("Sum with all zeros", "[sumArray]") {
    int arr[] = {0, 0, 0, 0};
    REQUIRE(sumArray(arr, 4) == 0);
}

test.cpp

Master arrays in modern C++. Learn how arrays work, how to use them safely, and how to apply them in practical C++ programs. This course guides you from the basics of array declaration to advanced usage, including pitfalls and modern alternatives.

Learn what arrays are, why they exist, and how they fit into C++ programming.

Explore how to access, modify, and safely use array elements.

Apply arrays in practical scenarios: looping, modifying, and passing to functions.

Go beyond basics: multidimensional arrays, common bugs, and modern alternatives.

Challenge: Safe Array Access

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