diff options
Diffstat (limited to 'src/libnm-glib-aux/tests')
| -rw-r--r-- | src/libnm-glib-aux/tests/test-shared-general.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/libnm-glib-aux/tests/test-shared-general.c b/src/libnm-glib-aux/tests/test-shared-general.c index 931c25c6..95255c7e 100644 --- a/src/libnm-glib-aux/tests/test-shared-general.c +++ b/src/libnm-glib-aux/tests/test-shared-general.c @@ -2380,6 +2380,60 @@ test_inet_utils(void) /*****************************************************************************/ +static void +test_ip6_addr_common_prefix_len(void) +{ + struct in6_addr a; + struct in6_addr b; + + /* identical addresses -> 128 */ + a = nmtst_inet6_from_string("2001:db8::1"); + b = nmtst_inet6_from_string("2001:db8::1"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 128); + + /* completely different -> 0 */ + a = nmtst_inet6_from_string("8000::"); + b = nmtst_inet6_from_string("::"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 0); + + /* first 64 bits in common, differ at bit 65 */ + a = nmtst_inet6_from_string("2001:db8:abcd:1234:8000::"); + b = nmtst_inet6_from_string("2001:db8:abcd:1234::"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 64); + + /* same /48 prefix */ + a = nmtst_inet6_from_string("2001:db8:abcd::"); + b = nmtst_inet6_from_string("2001:db8:abcd:ffff::"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 48); + + /* differ in 5th bit -> 4 common bits */ + a = nmtst_inet6_from_string("f800::"); + b = nmtst_inet6_from_string("f000::"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 4); + + /* differ in 2nd bit -> 1 common bit */ + a = nmtst_inet6_from_string("c000::"); + b = nmtst_inet6_from_string("8000::"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 1); + + /* both zero -> 128 */ + a = nmtst_inet6_from_string("::"); + b = nmtst_inet6_from_string("::"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 128); + + /* first 120 bits in common, differ at MSB of last byte */ + a = nmtst_inet6_from_string("2001:db8::80"); + b = nmtst_inet6_from_string("2001:db8::"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 120); + + /* first 127 bits in common, differ only in last bit */ + a = nmtst_inet6_from_string("2001:db8::fe"); + b = nmtst_inet6_from_string("2001:db8::ff"); + g_assert_cmpuint(nm_ip6_addr_common_prefix_len(&a, &b), ==, 127); +} + +/*****************************************************************************/ + static gboolean _inet_parse(int addr_family, const char *str, gboolean accept_legacy, gpointer out_addr) { @@ -2940,6 +2994,7 @@ main(int argc, char **argv) g_test_add_func("/general/test_path_simplify", test_path_simplify); g_test_add_func("/general/test_hostname_is_valid", test_hostname_is_valid); g_test_add_func("/general/test_inet_utils", test_inet_utils); + g_test_add_func("/general/test_ip6_addr_common_prefix_len", test_ip6_addr_common_prefix_len); g_test_add_func("/general/test_inet_parse_ip4_legacy", test_inet_parse_ip4_legacy); g_test_add_func("/general/test_garray", test_garray); g_test_add_func("/general/test_nm_prioq", test_nm_prioq); |