# tag: posix

from libc.stdlib  cimport getenv

from posix.stdlib cimport setenv, unsetenv

from libc.time    cimport *

def test_time():

    """

    >>> test_time()

    """

    cdef time_t t1, t2

    t1 = time(NULL)

    assert t1 != 0

    t1 = time(&t2)

    assert t1 == t2

def test_mktime():

    """

    >>> test_mktime()  # doctest:+ELLIPSIS

    (986138177, ...'Sun Apr  1 15:16:17 2001\\n')

    """

    cdef tm t, gmt

    cdef time_t tt

    cdef char *ct

    cdef char *tz

    tz = getenv("TZ")

    setenv("TZ", "UTC", 1)

    tzset()

    t.tm_sec = 17

    t.tm_min = 16

    t.tm_hour = 15

    t.tm_year = 101

    t.tm_mon = 3

    t.tm_mday = 1

    t.tm_isdst = 0

    tt = mktime(&t)

    assert tt != -1

    ct = ctime(&tt)

    assert ct != NULL

    if tz:

        setenv("TZ", tz, 1)

    else:

        unsetenv("TZ")

    tzset()

    return tt, ct