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Diffstat (limited to '')
| -rw-r--r-- | lib/test_utils.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/lib/test_utils.c b/lib/test_utils.c new file mode 100644 index 0000000..22f2483 --- /dev/null +++ b/lib/test_utils.c @@ -0,0 +1,147 @@ +/* Copyright (C) CZ.NIC, z.s.p.o. <knot-resolver@labs.nic.cz> + * SPDX-License-Identifier: GPL-3.0-or-later + */ + +#include <sys/socket.h> +#include <stdio.h> +#include <contrib/cleanup.h> + +#include "tests/unit/test.h" +#include "lib/utils.h" + +static void test_strcatdup(void **state) +{ + auto_free char *empty_res = kr_strcatdup(0); + assert_null(empty_res); + + auto_free char *null_res = kr_strcatdup(1, NULL); + assert_null(null_res); + + auto_free char *nullcat_res = kr_strcatdup(2, NULL, "beef"); + assert_string_equal(nullcat_res, "beef"); + + auto_free char *multi_res = kr_strcatdup(3, "need", "beef", "dead"); + assert_string_equal(multi_res, "needbeefdead"); + + /* Test fails if this leaks. */ + auto_fclose FILE* null_file = fopen("/dev/null", "r"); + (void)(null_file); + + /* Test fails if this leaks. */ + auto_close int null_sock = socket(AF_INET, SOCK_DGRAM, 0); + (void)(null_sock); +} + +static inline int test_bitcmp(const char *subnet, const char *str_addr, size_t len) +{ + char addr_buf[16] = {'\0'}; + kr_straddr_subnet(addr_buf, str_addr); + return kr_bitcmp(subnet, addr_buf, len); +} + +static void test_straddr(void **state) +{ + const char *ip4_ok = "1.2.3.0/30"; + const char *ip4_bad = "1.2.3.0/33"; + const char *ip4_in = "1.2.3.1"; + const char *ip4_out = "1.2.3.5"; + const char *ip6_ok = "7caa::/4"; + const char *ip6_bad = "7caa::/129"; + const char *ip6_in = "7caa::aa7c"; + const char *ip6_out = "8caa::aa7c"; + /* Parsing family */ + assert_int_equal(kr_straddr_family(ip4_ok), AF_INET); + assert_int_equal(kr_straddr_family(ip4_in), AF_INET); + assert_int_equal(kr_straddr_family(ip6_ok), AF_INET6); + assert_int_equal(kr_straddr_family(ip6_in), AF_INET6); + /* Parsing subnet */ + char ip4_sub[4], ip6_sub[16]; + assert_true(kr_straddr_subnet(ip4_sub, ip4_bad) < 0); + assert_int_equal(kr_straddr_subnet(ip4_sub, ip4_ok), 30); + assert_true(kr_straddr_subnet(ip6_sub, ip6_bad) < 0); + assert_int_equal(kr_straddr_subnet(ip6_sub, ip6_ok), 4); + /* Matching subnet */ + assert_int_equal(test_bitcmp(ip4_sub, ip4_in, 30), 0); + assert_int_not_equal(test_bitcmp(ip4_sub, ip4_out, 30), 0); + assert_int_equal(test_bitcmp(ip6_sub, ip6_in, 4), 0); + assert_int_not_equal(test_bitcmp(ip6_sub, ip6_out, 4), 0); +} + +static inline int assert_bitmask(const char *addr, const char *exp_masked) +{ + unsigned char addr_buf[16]; + unsigned char exp_masked_buf[16]; + + int bits = kr_straddr_subnet(addr_buf, addr); + size_t addr_len = (kr_straddr_family(addr) == AF_INET6) ? 16 : 4; + int exp_masked_bits = kr_straddr_subnet(exp_masked_buf, exp_masked); + size_t exp_masked_len = (kr_straddr_family(exp_masked) == AF_INET6) ? 16 : 4; + + /* sanity checks */ + assert_true(bits >= 0); + assert_int_equal(addr_len, exp_masked_len); + assert_int_equal(exp_masked_bits, exp_masked_len * 8); + + kr_bitmask(addr_buf, addr_len, bits); + return memcmp(addr_buf, exp_masked_buf, addr_len); +} + +static void test_bitmask(void **state) +{ + assert_int_equal(assert_bitmask("10.0.1.5/32", "10.0.1.5"), 0); + assert_int_equal(assert_bitmask("10.0.1.5", "10.0.1.5"), 0); + assert_int_equal(assert_bitmask("10.0.1.5/24", "10.0.1.0"), 0); + assert_int_equal(assert_bitmask("128.30.1.16/16", "128.30.0.0"), 0); + assert_int_equal(assert_bitmask("255.255.255.255/20", "255.255.240.0"), 0); + assert_int_equal(assert_bitmask("255.255.255.255/22", "255.255.252.0"), 0); + assert_int_equal(assert_bitmask("192.168.0.1/0", "0.0.0.0"), 0); + assert_int_equal(assert_bitmask("7caa::/4", "7000::"), 0); + assert_int_equal(assert_bitmask("dead:beef::/16", "dead::"), 0); + assert_int_equal(assert_bitmask("dead:beef::/20", "dead:b000::"), 0); + assert_int_equal(assert_bitmask("dead:beef::/0", "::"), 0); + assert_int_equal(assert_bitmask("64aa:22fa:1378:aaaa:bbbb::/36", "64aa:22fa:1000::"), 0); +} + +static void test_strptime_diff(void **state) +{ + char *format = "%Y-%m-%dT%H:%M:%S"; + const char *errmsg = NULL; + double output; + + errmsg = kr_strptime_diff(format, + "2019-01-09T12:06:04", + "2019-01-09T12:06:04", &output); + assert_true(errmsg == NULL); + /* double type -> equality is not reliable */ + assert_true(output > -0.01 && output < 0.01); + + errmsg = kr_strptime_diff(format, + "2019-01-09T12:06:04", + "2019-01-09T11:06:04", &output); + assert_true(errmsg == NULL); + /* double type -> equality is not reliable */ + assert_true(output > -3600.01 && output < 3600.01); + + /* invalid inputs */ + errmsg = kr_strptime_diff(format, + "2019-01-09T25:06:04", + "2019-01-09T11:06:04", &output); + assert_true(errmsg != NULL); + + errmsg = kr_strptime_diff("fail", + "2019-01-09T23:06:04", + "2019-01-09T11:06:04", &output); + assert_true(errmsg != NULL); +} + +int main(void) +{ + const UnitTest tests[] = { + unit_test(test_strcatdup), + unit_test(test_straddr), + unit_test(test_bitmask), + unit_test(test_strptime_diff) + }; + + return run_tests(tests); +} |