src/lib/test-time-util.c

	test-time-util.c revision 27a33f6aaa3d02d88c020315ae613e0c4910e950
5f5870385cff47efd2f58e7892f251cf13761528Timo Sirainen/* Copyright (c) 2009-2017 Dovecot authors, see the included COPYING file */
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen
60bdf7c0422caeb08cc615c60b659d4d1ff30614Timo Sirainen#include "test-lib.h"
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen#include "time-util.h"
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen#include <time.h>
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainenstatic void test_timeval_cmp(void)
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen{
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    static const struct timeval input[] = {
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 0, 0 }, { 0, 0 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { INT_MAX, 999999 }, { INT_MAX, 999999 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 0, 0 }, { 0, 1 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 0, 0 }, { 1, 0 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 0, 999999 }, { 1, 0 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 1, 0 }, { 1, 1 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { -INT_MAX, 0 }, { INT_MAX, 0 }
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    };
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    static int output[] = {
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        0,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        0,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        -1,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        -1,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        -1,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        -1,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        -1
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    };
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    unsigned int i;
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    test_begin("timeval_cmp()");
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    for (i = 0; i < N_ELEMENTS(input); i += 2) {
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        test_assert(timeval_cmp(&input[i], &input[i+1]) == output[i/2]);
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        test_assert(timeval_cmp(&input[i+1], &input[i]) == -output[i/2]);
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    }
5cc9289a900f5d40d126ca663790dca2a7456416Timo Sirainen    test_end();
5cc9289a900f5d40d126ca663790dca2a7456416Timo Sirainen}
5cc9289a900f5d40d126ca663790dca2a7456416Timo Sirainen
5cc9289a900f5d40d126ca663790dca2a7456416Timo Sirainenstatic void test_timeval_diff(void)
5cc9289a900f5d40d126ca663790dca2a7456416Timo Sirainen{
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    static const struct timeval input[] = {
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 1, 0 }, { 0, 999999 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 1, 0 }, { 0, 999001 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 1, 1 }, { 0, 999001 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { 2, 1 }, { 1, 0 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { INT_MAX, 0 }, { INT_MAX-1, 1 }
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    };
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    static int output[] = {
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        1,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        999,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        1000,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        1000001,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        999999
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    };
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    unsigned int i;
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    long long udiff;
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    int mdiff;
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    test_begin("timeval_diff_*()");
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    for (i = 0; i < N_ELEMENTS(input); i += 2) {
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        udiff = timeval_diff_usecs(&input[i], &input[i+1]);
9a1a4c2ca1b9a8bbadd38224b15a364c78cb9938Timo Sirainen        mdiff = timeval_diff_msecs(&input[i], &input[i+1]);
9a1a4c2ca1b9a8bbadd38224b15a364c78cb9938Timo Sirainen        test_assert(udiff == output[i/2]);
9a1a4c2ca1b9a8bbadd38224b15a364c78cb9938Timo Sirainen        test_assert(mdiff == udiff/1000);
9a1a4c2ca1b9a8bbadd38224b15a364c78cb9938Timo Sirainen
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        udiff = timeval_diff_usecs(&input[i+1], &input[i]);
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        mdiff = timeval_diff_msecs(&input[i+1], &input[i]);
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        test_assert(udiff == -output[i/2]);
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        test_assert(mdiff == udiff/1000);
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    }
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    test_end();
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen}
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainenstatic void test_time_to_local_day_start(void)
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen{
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    /* Try this around days when DST changes in some of the more popular
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen       timezones. If that works, everything else probably works too. */
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen    const struct tm tests[] = {
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        /* Europe winter -> summer */
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 2, .tm_mday = 26 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 2, .tm_mday = 26,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen          .tm_hour = 23, .tm_min = 59, .tm_sec = 59 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        /* Europe summer -> winter */
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 9, .tm_mday = 29 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 9, .tm_mday = 29,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen          .tm_hour = 23, .tm_min = 59, .tm_sec = 59 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        /* USA winter -> summer */
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 2, .tm_mday = 12 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 2, .tm_mday = 12,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen          .tm_hour = 23, .tm_min = 59, .tm_sec = 59 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        /* USA summer -> winter */
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 10, .tm_mday = 5 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 10, .tm_mday = 5,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen          .tm_hour = 23, .tm_min = 59, .tm_sec = 59 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        /* (some of) Australia summer -> winter */
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 3, .tm_mday = 2 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        { .tm_year = 2017-1900, .tm_mon = 3, .tm_mday = 2,
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen          .tm_hour = 23, .tm_min = 59, .tm_sec = 59 },
596f582a422eddef951ee445f9a0ed3d4bf14ff8Timo Sirainen        /* (some of) Australia winter -> summer */
        { .tm_year = 2017-1900, .tm_mon = 9, .tm_mday = 1 },
        { .tm_year = 2017-1900, .tm_mon = 9, .tm_mday = 1,
          .tm_hour = 23, .tm_min = 59, .tm_sec = 59 },
    };
    const struct tm *tm;
    struct tm tm_copy;
    time_t t;

    test_begin("time_to_local_day_start()");
    for (unsigned i = 0; i < N_ELEMENTS(tests); i++) {
        tm_copy = tests[i];
        tm_copy.tm_isdst = -1;
        t = mktime(&tm_copy);
        test_assert_idx(t != (time_t)-1, i);

        t = time_to_local_day_start(t);
        tm = localtime(&t);
        test_assert_idx(tm->tm_year == tests[i].tm_year &&
                tm->tm_mon == tests[i].tm_mon &&
                tm->tm_mday == tests[i].tm_mday, i);
        test_assert_idx(tm->tm_hour == 0 && tm->tm_min == 0 &&
                tm->tm_sec == 0, i);
    }
    test_end();
}

static void test_timestamp(const char *ts, int idx)
{
    /* %G:%H:%M:%S */
    const char **t = t_strsplit(ts, ":");
    unsigned len = str_array_length(t);
    test_assert_idx(len == 4, idx);

    /* %G - ISO 8601 year */
    test_assert_idx(strlen(t[0]) == 4, idx);
    unsigned v;
    test_assert_idx(str_to_uint(t[0], &v) == 0, idx);
    test_assert_idx(1000 <= v, idx);
    test_assert_idx(v <= 3000, idx);

    /* %H - hour from 00 to 23 */
    test_assert_idx(strlen(t[1]) == 2, idx);
    test_assert_idx(str_to_uint(t[1], &v) == 0, idx);
    test_assert_idx(v <= 23, idx);

    /* %M - minute from 00 to 59 */
    test_assert_idx(strlen(t[2]) == 2, idx);
    test_assert_idx(str_to_uint(t[2], &v) == 0, idx);
    test_assert_idx(v <= 59, idx);

    /* %S - second from 00 to 60 */
    test_assert_idx(strlen(t[3]) == 2, idx);
    test_assert_idx(str_to_uint(t[3], &v) == 0, idx);
    test_assert_idx(v <= 60, idx);
}

#define TS_FMT "%G:%H:%M:%S"
static void test_strftime_now(void)
{
    test_begin("t_strftime and variants now");

    time_t now = time(NULL);
    test_timestamp(t_strftime(TS_FMT, gmtime(&now)), 0);
    test_timestamp(t_strfgmtime(TS_FMT, now), 1);
    test_timestamp(t_strflocaltime(TS_FMT, now), 2);

    test_end();
}

#define RFC2822_FMT "%a, %d %b %Y %T"
static void test_strftime_fixed(void)
{
    test_begin("t_strftime and variants fixed timestamp");

    time_t ts = 1481222536;
    const char *exp = "Thu, 08 Dec 2016 18:42:16";
    test_assert(strcmp(t_strftime(RFC2822_FMT, gmtime(&ts)), exp) == 0);
    test_assert(strcmp(t_strfgmtime(RFC2822_FMT, ts), exp) == 0);

    test_end();
}

void test_time_util(void)
{
    test_timeval_cmp();
    test_timeval_diff();
    test_time_to_local_day_start();
    test_strftime_now();
    test_strftime_fixed();
}