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

int process_numbers();

TEST_CASE("Sum excludes multiples of 3 and stops before 17", "[process_numbers]") {
    int result = process_numbers();
    // Numbers processed: 1,2,4,5,7,8,10,11,13,14,16
    // Sum = 1+2+4+5+7+8+10+11+13+14+16 = 91
    REQUIRE(result == 91);
}

TEST_CASE("Result is an integer", "[process_numbers]") {
    int result = process_numbers();
    REQUIRE((result == (int)result));
}

TEST_CASE("Does not include 17 or anything after", "[process_numbers]") {
    int sum = 0;
    for (int i = 1; i < 17; i++) {
        if (i % 3 != 0) sum += i;
    }
    int result = process_numbers();
    REQUIRE(result == sum);
}

TEST_CASE("Multiples of 3 are not included", "[process_numbers]") {
    int result = process_numbers();
    // Multiples of 3 between 1 and 16: 3,6,9,12,15
    // Ensure they are not included
    int sum_with_3s = 0;
    for (int i = 1; i < 17; i++) {
        sum_with_3s += i;
    }
    int multiples_of_3 = 3 + 6 + 9 + 12 + 15;
    REQUIRE(result == sum_with_3s - multiples_of_3);
}

test.cpp

Master the essential loop constructs in C, including while, for, and do-while loops, as well as control statements like break and continue. This course is designed for learners who already understand variables and conditionals, focusing on practical usage and concise explanations.

Explore the while loop in C, including its syntax, practical use cases, and related control statements.

Dive into the for loop in C, its structure, variations, and common use cases.

Discover how to use loops inside other loops to solve more complex problems.

Challenge: Practice with Continue and Break in C Loops

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Challenge: Practice with Continue and Break in C Loops

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