202 lines
5.4 KiB
C
202 lines
5.4 KiB
C
/* tst-strptime2 - Test strptime %z timezone offset specifier. */
|
|
|
|
#include <limits.h>
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
|
|
/* Dummy string is used to match strptime's %s specifier. */
|
|
|
|
static const char dummy_string[] = "1113472456";
|
|
|
|
/* buffer_size contains the maximum test string length, including
|
|
trailing NUL. */
|
|
|
|
enum
|
|
{
|
|
buffer_size = 20,
|
|
};
|
|
|
|
/* Verbose execution, set with --verbose command line option. */
|
|
|
|
static bool verbose;
|
|
|
|
|
|
/* mkbuf - Write a test string for strptime with the specified time
|
|
value and number of digits into the supplied buffer, and return
|
|
the expected strptime test result.
|
|
|
|
The test string, buf, is written with the following content:
|
|
a dummy string matching strptime "%s" format specifier,
|
|
whitespace matching strptime " " format specifier, and
|
|
timezone string matching strptime "%z" format specifier.
|
|
|
|
Note that a valid timezone string contains the following fields:
|
|
Sign field consisting of a '+' or '-' sign,
|
|
Hours field in two decimal digits, and
|
|
optional Minutes field in two decimal digits.
|
|
|
|
This function may write test strings with minutes values outside
|
|
the valid range 00-59. These are invalid strings and useful for
|
|
testing strptime's rejection of invalid strings.
|
|
|
|
The ndigits parameter is used to limit the number of timezone
|
|
string digits to be written and may range from 0 to 4. Note that
|
|
only 2 and 4 digit strings are valid input to strptime; strings
|
|
with 0, 1 or 3 digits are invalid and useful for testing strptime's
|
|
rejection of invalid strings.
|
|
|
|
This function returns the behavior expected of strptime resulting
|
|
from parsing the the test string. For valid strings, the function
|
|
returns the expected tm_gmtoff value. For invalid strings,
|
|
LONG_MAX is returned. LONG_MAX indicates the expectation that
|
|
strptime will return NULL; for example, if the number of digits
|
|
are not correct, or minutes part of the time is outside the valid
|
|
range of 00 to 59. */
|
|
|
|
static long int
|
|
mkbuf (char *buf, bool neg, unsigned int hhmm, size_t ndigits)
|
|
{
|
|
const int mm_max = 59;
|
|
char sign = neg ? '-' : '+';
|
|
int i;
|
|
unsigned int hh = hhmm / 100;
|
|
unsigned int mm = hhmm % 100;
|
|
long int expect = LONG_MAX;
|
|
|
|
i = sprintf (buf, "%s %c", dummy_string, sign);
|
|
snprintf (buf + i, ndigits + 1, "%04u", hhmm);
|
|
|
|
if (mm <= mm_max && (ndigits == 2 || ndigits == 4))
|
|
{
|
|
long int tm_gmtoff = hh * 3600 + mm * 60;
|
|
|
|
expect = neg ? -tm_gmtoff : tm_gmtoff;
|
|
}
|
|
|
|
return expect;
|
|
}
|
|
|
|
|
|
/* Write a description of expected or actual test result to stdout. */
|
|
|
|
static void
|
|
describe (bool string_valid, long int tm_gmtoff)
|
|
{
|
|
if (string_valid)
|
|
printf ("valid, tm.tm_gmtoff %ld", tm_gmtoff);
|
|
else
|
|
printf ("invalid, return value NULL");
|
|
}
|
|
|
|
|
|
/* Using buffer buf, run strptime. Compare results against expect,
|
|
the expected result. Report failures and verbose results to stdout.
|
|
Update the result counts. Return 1 if test failed, 0 if passed. */
|
|
|
|
static int
|
|
compare (const char *buf, long int expect, unsigned int *nresult)
|
|
{
|
|
struct tm tm;
|
|
char *p;
|
|
bool test_string_valid;
|
|
long int test_result;
|
|
bool fail;
|
|
int result;
|
|
|
|
p = strptime (buf, "%s %z", &tm);
|
|
test_string_valid = p != NULL;
|
|
test_result = test_string_valid ? tm.tm_gmtoff : LONG_MAX;
|
|
fail = test_result != expect;
|
|
|
|
if (fail || verbose)
|
|
{
|
|
bool expect_string_valid = expect != LONG_MAX;
|
|
|
|
printf ("%s: input \"%s\", expected: ", fail ? "FAIL" : "PASS", buf);
|
|
describe (expect_string_valid, expect);
|
|
|
|
if (fail)
|
|
{
|
|
printf (", got: ");
|
|
describe (test_string_valid, test_result);
|
|
}
|
|
|
|
printf ("\n");
|
|
}
|
|
|
|
result = fail ? 1 : 0;
|
|
nresult[result]++;
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
char buf[buffer_size];
|
|
long int expect;
|
|
int result = 0;
|
|
/* Number of tests run with passing (index==0) and failing (index==1)
|
|
results. */
|
|
unsigned int nresult[2];
|
|
unsigned int ndigits;
|
|
unsigned int step;
|
|
unsigned int hhmm;
|
|
|
|
nresult[0] = 0;
|
|
nresult[1] = 0;
|
|
|
|
/* Create and test input string with no sign and four digits input
|
|
(invalid format). */
|
|
|
|
sprintf (buf, "%s 1030", dummy_string);
|
|
expect = LONG_MAX;
|
|
result |= compare (buf, expect, nresult);
|
|
|
|
/* Create and test input strings with sign and digits:
|
|
0 digits (invalid format),
|
|
1 digit (invalid format),
|
|
2 digits (valid format),
|
|
3 digits (invalid format),
|
|
4 digits (valid format if and only if minutes is in range 00-59,
|
|
otherwise invalid).
|
|
If format is valid, the returned tm_gmtoff is checked. */
|
|
|
|
for (ndigits = 0, step = 10000; ndigits <= 4; ndigits++, step /= 10)
|
|
for (hhmm = 0; hhmm <= 9999; hhmm += step)
|
|
{
|
|
/* Test both positive and negative signs. */
|
|
|
|
expect = mkbuf (buf, false, hhmm, ndigits);
|
|
result |= compare (buf, expect, nresult);
|
|
|
|
expect = mkbuf (buf, true, hhmm, ndigits);
|
|
result |= compare (buf, expect, nresult);
|
|
}
|
|
|
|
if (result > 0 || verbose)
|
|
printf ("%s: %u input strings: %u fail, %u pass\n",
|
|
result > 0 ? "FAIL" : "PASS",
|
|
nresult[1] + nresult[0], nresult[1], nresult[0]);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/* Add a "--verbose" command line option to test-skeleton.c. */
|
|
|
|
#define OPT_VERBOSE 10000
|
|
|
|
#define CMDLINE_OPTIONS \
|
|
{ "verbose", no_argument, NULL, OPT_VERBOSE, },
|
|
|
|
#define CMDLINE_PROCESS \
|
|
case OPT_VERBOSE: \
|
|
verbose = true; \
|
|
break;
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|