void test_buffer()
{
char data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
buffer b;
TEST_CHECK(b.size() == 0);
TEST_CHECK(b.capacity() == 0);
TEST_CHECK(b.empty());
b.resize(10);
TEST_CHECK(b.size() == 10);
TEST_CHECK(b.capacity() == 10);
std::memcpy(b.begin(), data, 10);
b.reserve(50);
TEST_CHECK(std::memcmp(b.begin(), data, 10) == 0);
TEST_CHECK(b.capacity() == 50);
b.erase(b.begin() + 6, b.end());
TEST_CHECK(std::memcmp(b.begin(), data, 6) == 0);
TEST_CHECK(b.capacity() == 50);
TEST_CHECK(b.size() == 6);
b.insert(b.begin(), data + 5, data + 10);
TEST_CHECK(b.capacity() == 50);
TEST_CHECK(b.size() == 11);
TEST_CHECK(std::memcmp(b.begin(), data + 5, 5) == 0);
b.clear();
TEST_CHECK(b.size() == 0);
TEST_CHECK(b.capacity() == 50);
b.insert(b.end(), data, data + 10);
TEST_CHECK(b.size() == 10);
TEST_CHECK(std::memcmp(b.begin(), data, 10) == 0);
b.erase(b.begin(), b.end());
TEST_CHECK(b.capacity() == 50);
TEST_CHECK(b.size() == 0);
buffer().swap(b);
TEST_CHECK(b.capacity() == 0);
}
