Function test_capacity_management

tests/misc/containers.cpp:846–862

template<typename Container>
void test_capacity_management() {
    Container c;

    // Test capacity contract
    FL_CHECK(c.capacity() >= c.size());

    // Test reserve
    c.reserve(100);
    FL_CHECK(c.capacity() >= 100);

    // Add elements and test shrink_to_fit
    c.push_back(10);
    c.push_back(20);
    FL_CHECK(c.size() == 2);
    c.shrink_to_fit();
    FL_CHECK(c.capacity() >= 2);
}

// ============================================================================
// Iterator Arithmetic Contract Test Functions