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

void fillPowersOfTwo(int arr[], int size);

TEST_CASE("Array of size 8 is filled with correct powers of two", "[fillPowersOfTwo]") {
    int arr[8] = {0};
    fillPowersOfTwo(arr, 8);
    int expected[8] = {1, 2, 4, 8, 16, 32, 64, 128};
    for (int i = 0; i < 8; ++i) {
        REQUIRE(arr[i] == expected[i]);
    }
}

TEST_CASE("Array of size 1 is filled with 1", "[fillPowersOfTwo]") {
    int arr[1] = {0};
    fillPowersOfTwo(arr, 1);
    REQUIRE(arr[0] == 1);
}

TEST_CASE("Array of size 5 is filled with correct powers of two", "[fillPowersOfTwo]") {
    int arr[5] = {0};
    fillPowersOfTwo(arr, 5);
    int expected[5] = {1, 2, 4, 8, 16};
    for (int i = 0; i < 5; ++i) {
        REQUIRE(arr[i] == expected[i]);
    }
}

test.cpp

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Challenge: Array With Powers of Two

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