From 97fa4a760e67f4f553dbe18a3a75fa14e855916d Mon Sep 17 00:00:00 2001 From: jdoubleu Date: Thu, 7 Apr 2022 17:30:01 +0200 Subject: [PATCH] add tests for tzset(3) --- newlib/testsuite/newlib.time/time.exp | 12 ++ newlib/testsuite/newlib.time/tzset.c | 163 ++++++++++++++++++++++++++ 2 files changed, 175 insertions(+) create mode 100644 newlib/testsuite/newlib.time/time.exp create mode 100644 newlib/testsuite/newlib.time/tzset.c diff --git a/newlib/testsuite/newlib.time/time.exp b/newlib/testsuite/newlib.time/time.exp new file mode 100644 index 000000000..3fce2306e --- /dev/null +++ b/newlib/testsuite/newlib.time/time.exp @@ -0,0 +1,12 @@ +# Copyright (C) 2022 jdoubleu. All rights reserved. +# +# Permission to use, copy, modify, and distribute this software +# is freely granted, provided that this notice is preserved. +# + +load_lib passfail.exp + +set exclude_list { +} + +newlib_pass_fail_all -x $exclude_list diff --git a/newlib/testsuite/newlib.time/tzset.c b/newlib/testsuite/newlib.time/tzset.c new file mode 100644 index 000000000..0e5b196c6 --- /dev/null +++ b/newlib/testsuite/newlib.time/tzset.c @@ -0,0 +1,163 @@ +/* Test that valid POSIX timezone strings are correctly parsed by tzset(3). */ +#include +#include + +// BEGIN test vectors +#include +#include + +#define IN_SECONDS(h, m, s) ((h) * 3600 + (m) * 60 + (s)) +#define NO_TIME INT_MIN + +struct tz_test { + const char* tzstr; + int offset_seconds; + int dst_offset_seconds; +}; + +extern struct tm winter_tm; +extern struct tm summer_tm; +extern const time_t winter_time; +extern const time_t summer_time; +extern struct tz_test test_timezones[]; + +// winter time is March, 21st 2022 at 8:15pm and 20 seconds +struct tm winter_tm = { + .tm_sec = 20, + .tm_min = 15, + .tm_hour = 20, + .tm_mday = 21, + .tm_mon = 3 - 1, + .tm_year = 2022 - 1900, + .tm_isdst = 0 +}; + +// summer time is July, 15th 2022 at 10:50am and 40 seconds +struct tm summer_tm = { + .tm_sec = 40, + .tm_min = 50, + .tm_hour = 10, + .tm_mday = 15, + .tm_mon = 7 - 1, + .tm_year = 2022 - 1900, + .tm_isdst = 1 +}; + +// UTC unix time for the winter time +const time_t winter_time = 1647893720; +const time_t summer_time = 1657882240; + +struct tz_test test_timezones[] = { + /* + * creating test vectors based on the POSIX spec (https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_03) + */ + // normal std names + {"MAR1", IN_SECONDS(1, 0, 0), NO_TIME}, + {"MAR-1", -IN_SECONDS(1, 0, 0), NO_TIME}, + {"MAR+2", IN_SECONDS(2, 0, 0), NO_TIME}, + {"MAR7", IN_SECONDS(7, 0, 0), NO_TIME}, + {"MAR-7", -IN_SECONDS(7, 0, 0), NO_TIME}, + {"MARS5", IN_SECONDS(5, 0, 0), NO_TIME}, + {"MARSM5", IN_SECONDS(5, 0, 0), NO_TIME}, + {"MARSMOON5", IN_SECONDS(5, 0, 0), NO_TIME}, // assuming TZNAME_MAX >= 8 + {"MARS5:23:42", IN_SECONDS(5, 23, 42), NO_TIME}, + {"SUN-7:14:24", -IN_SECONDS(7, 14, 24), NO_TIME}, + // with DST + {"MAR5SMAR", IN_SECONDS(5, 0, 0), IN_SECONDS(4, 0, 0)}, // only DST name + {"MAR5SMAR2", IN_SECONDS(5, 0, 0), IN_SECONDS(2, 0, 0)}, // DST name with offset + {"MAR3SMAR-3", IN_SECONDS(3, 0, 0), -IN_SECONDS(3, 0, 0)}, + {"MARSWINTER4MARSUMMER", IN_SECONDS(4, 0, 0), IN_SECONDS(3, 0, 0)}, + {"MARSWINTER4MARSUMMER3", IN_SECONDS(4, 0, 0), IN_SECONDS(3, 0, 0)}, + // with DST IN_SECONDSs + {"WMARS3SMARS,J80", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"WMARS3SMARS,J80,J134", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"WMARS3SMARS,79", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"WMARS3SMARS,76,134", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"WMARS3SMARS,76/02,134/03", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"WMARS3SMARS,76/02:15:45,134/03:40:20", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"WMARS3SMARS,M3.4.1/02:15:45,M8.3.1/03:40:20", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + + // special std names + {"-1", -IN_SECONDS(1, 0, 0), NO_TIME}, + {"-2", -IN_SECONDS(2, 0, 0), NO_TIME}, // require TZNAME_MAX >= 7 + 1 + {"<003>3", IN_SECONDS(3, 0, 0), NO_TIME}, + {"<+04>4", IN_SECONDS(4, 0, 0), NO_TIME}, + {"<-05>-5", -IN_SECONDS(5, 0, 0), NO_TIME}, + {"6", IN_SECONDS(6, 0, 0), NO_TIME}, + {"<+A5>-7", -IN_SECONDS(7, 0, 0), NO_TIME}, + {"<0123456>8", IN_SECONDS(8, 0, 0), NO_TIME}, + {"<0A1B2C3>9", IN_SECONDS(9, 0, 0), NO_TIME}, + {"-45", -IN_SECONDS(4, 0, 0), IN_SECONDS(5, 0, 0)}, + {"3", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"32", IN_SECONDS(3, 0, 0), IN_SECONDS(2, 0, 0)}, + {"3:152:30:15", IN_SECONDS(3, 15, 0), IN_SECONDS(2, 30, 15)}, + {"3:152:30:15", IN_SECONDS(3, 15, 0), IN_SECONDS(2, 30, 15)}, // requires TZNAME_MAX >= 8 + 1 + {"<+H6M20S12>6:20:12<-H4M40S14>-4:40:14", IN_SECONDS(6, 20, 12), -IN_SECONDS(4, 40, 14)}, // requires TZNAME_MAX >= 9 + 1 + {"<+0123456789ABCDEF>3:33:33", IN_SECONDS(3, 33, 33), NO_TIME}, // truncates the name (17 + 1) + + /* + * real-world test vectors. + * IN_SECONDSzones extracted from the tzdb (https://github.com/eggert/tz#2019e). + * The IN_SECONDSzone strings can also be obtained from https://raw.githubusercontent.com/nayarsystems/posix_tz_db/master/zones.csv. + */ + { /* Etc/GMT-14 */ "<+14>-14", -IN_SECONDS(14, 0, 0), NO_TIME}, + { /* Etc/GMT+12 */ "<-12>12", IN_SECONDS(12, 0, 0), NO_TIME}, + { /* Africa/Casablanca */ "<+01>-1", -IN_SECONDS(1, 0, 0), NO_TIME}, + { /* America/Araguaina */ "<-03>3", IN_SECONDS(3, 0, 0), NO_TIME}, + { /* America/Asuncion */ "<-04>4<-03>,M10.1.0/0,M3.4.0/0", IN_SECONDS(4, 0, 0), IN_SECONDS(3, 0, 0)}, + { /* America/Los_Angeles */ "PST8PDT,M3.2.0,M11.1.0", IN_SECONDS(8, 0, 0), IN_SECONDS(7, 0, 0)}, + { /* America/New_York */ "EST5EDT,M3.2.0,M11.1.0", IN_SECONDS(5, 0, 0), IN_SECONDS(4, 0, 0)}, + { /* America/Scoresbysund */ "<-01>1<+00>,M3.5.0/0,M10.5.0/1", IN_SECONDS(1, 0, 0), IN_SECONDS(0, 0, 0)}, + { /* Asia/Colombo */ "<+0530>-5:30", -IN_SECONDS(5, 30, 0), NO_TIME}, + { /* Europe/Berlin */ "CET-1CEST,M3.5.0,M10.5.0/3", -IN_SECONDS(1, 0, 0), -IN_SECONDS(2, 0, 0)}, + + // END of list + {NULL, NO_TIME, NO_TIME} +}; + +// helper macros +#define FOR_TIMEZONES(iter_name) for (struct tz_test* iter_name = test_timezones; iter_name->tzstr != NULL; ++iter_name) + +// END test vectors + +static int failed = 0; + +#define TEST_ASSERT_EQUAL_INT_MESSAGE(...) assert_equal(__VA_ARGS__) +void assert_equal(int lhs, int rhs, const char* msg) +{ + if (lhs != rhs) + { + printf("Assertion failed! Expected %d to equal %d. %s\n", lhs, rhs, msg); + ++failed; + } +} + +void test_TimezoneStrings(void) +{ + char buffer[128]; + + FOR_TIMEZONES(ptr) + { + setenv("TZ", ptr->tzstr, 1); + tzset(); + + snprintf(buffer, 128, "winter time, timezone = \"%s\"", ptr->tzstr); + + struct tm winter_tm_copy = winter_tm; // copy + TEST_ASSERT_EQUAL_INT_MESSAGE(winter_time + ptr->offset_seconds, mktime(&winter_tm_copy), buffer); + + if (ptr->dst_offset_seconds != NO_TIME) + { + snprintf(buffer, 128, "summer time, timezone = \"%s\"", ptr->tzstr); + + struct tm summer_tm_copy = summer_tm; // copy + TEST_ASSERT_EQUAL_INT_MESSAGE(summer_time + ptr->dst_offset_seconds, mktime(&summer_tm_copy), buffer); + } + } +} + +int main() +{ + test_TimezoneStrings(); + exit (failed); +} \ No newline at end of file -- 2.35.1