#include "pointer_basics.hpp"
#include <gtest/gtest.h>

TEST(PointerBasics, GetSetValue) {
    int x = 42;
    pointers::set_value(&x, 100);
    EXPECT_EQ(pointers::get_value(&x), 100);
}

TEST(PointerBasics, IsNull) {
    EXPECT_TRUE(pointers::is_null(nullptr));
    int x = 1;
    EXPECT_FALSE(pointers::is_null(&x));
}

TEST(PointerBasics, SwapViaPointers) {
    int a = 1, b = 2;
    pointers::swap_via_pointers(&a, &b);
    EXPECT_EQ(a, 2);
    EXPECT_EQ(b, 1);
}