First unit tests

Bugs that still remain:

• The socketaddr factory (DNS lookup) does not yet seam to be fully functional.
• UDP socket test needs to pass
• TCP socket test needs to pass
• Unit Test for socketaddr Factory lookups
• Segfault at test shutdown needs to be fixed.
• fcntl needs to be checked for correct flag retuns

test/address_tests.cpp

+#define BOOST_AUTO_TEST_MAIN
+#define BOOST_TEST_MODULE RMRF_TESTS
+#include <boost/test/included/unit_test.hpp>
+
+#include "net/socketaddress.hpp"
+#include "net/sock_address_factory.hpp"
+
+
+using namespace rmrf::net;
+
+BOOST_AUTO_TEST_CASE(Socketaddr_IPv4_Construction_Test) {
+    sockaddr_in addr_ip4;
+    addr_ip4.sin_family = AF_INET;
+    addr_ip4.sin_addr.s_addr = htonl(INADDR_ANY);
+    addr_ip4.sin_port = htons(80);
+    socketaddr sa{addr_ip4};
+    BOOST_CHECK_EQUAL(sa.str(), "SocketAddress: IPv4 0.0.0.0:80");
+}
+
+BOOST_AUTO_TEST_CASE(Socketaddr_Lookup_Localhost_IPv6) {
+    const auto sa = get_first_general_socketaddr("::1", 443);
+    BOOST_CHECK_EQUAL(sa.str(), "SocketAddress: IPv6 [::1]:443");
+}
+
+BOOST_AUTO_TEST_CASE(Socketaddr_Lookup_Localhost_through_indirect_IPv6) {
+    const auto sa = get_first_general_socketaddr("[::1]", 443);
+    BOOST_CHECK_EQUAL(sa.str(), "SocketAddress: IPv6 [::1]:443");
+}
+
+BOOST_AUTO_TEST_CASE(Socketaddr_Lookup_Localhost_through_direct_IPv6) {
+    const auto sa = get_first_general_socketaddr("::1", 443);
+    BOOST_CHECK_EQUAL(sa.str(), "SocketAddress: IPv6 [::1]:443");
+}
+
+BOOST_AUTO_TEST_CASE(Socketaddr_Lookup_Localhost_through_IPv4) {
+    const auto sa = get_first_general_socketaddr("127.0.0.1", "443");
+    BOOST_CHECK_EQUAL(sa.str(), "SocketAddress: IPv4 127.0.0.1:443");
+}
+
+BOOST_AUTO_TEST_CASE(Socketaddr_IPv6_Construction_Test) {
+    sockaddr_in6 addr_ip6;
+    addr_ip6.sin6_family = AF_INET6;
+    addr_ip6.sin6_addr = in6addr_any;
+    addr_ip6.sin6_port = htons(80);
+    socketaddr sa{addr_ip6};
+    BOOST_CHECK_EQUAL(sa.str(), "SocketAddress: IPv6 [::]:80");
+}
+
+BOOST_AUTO_TEST_CASE(Socketaddr_IPv6_Localhost_Construction_Test) {
+    sockaddr_in6 addr_ip6;
+    addr_ip6.sin6_family = AF_INET6;
+    addr_ip6.sin6_addr = in6addr_loopback;
+    addr_ip6.sin6_port = htons(80);
+    socketaddr sa{addr_ip6};
+    BOOST_CHECK_EQUAL(sa.str(), "SocketAddress: IPv6 [::1]:80");
+}
+
+BOOST_AUTO_TEST_CASE(Socketaddr_comparison) {
+    BOOST_CHECK_NE(get_first_general_socketaddr("127.0.0.1", "443"), get_first_general_socketaddr("127.0.0.1", "80"));
+    BOOST_CHECK_EQUAL(get_first_general_socketaddr("127.0.0.1", "443"), get_first_general_socketaddr("127.0.0.1", "443"));
+    BOOST_CHECK_NE(get_first_general_socketaddr("::1", "443"), get_first_general_socketaddr("127.0.0.1", "80"));
+    BOOST_CHECK_NE(get_first_general_socketaddr("[::1]", "443"), get_first_general_socketaddr("::1", "80"));
+    BOOST_CHECK_EQUAL(get_first_general_socketaddr("[::1]", "443"), get_first_general_socketaddr("::1", "443"));
+}