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/* test.c - Infrastructure for unit tests.
* Copyright (C) 2015 g10 Code GmbH
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define INCLUDED_BY_MAIN_MODULE 1
#include "gpg.h"
/* A unit test consists of one or more tests. Tests can be broken
into groups and each group can consist of one or more tests. */
/* The number of test groups. */
static int test_groups;
/* The current test group. */
static char *test_group;
/* Whether there was already a failure in the current test group. */
static int current_test_group_failed;
/* The number of test groups with a failure. */
static int test_groups_failed;
/* The total number of tests. */
static int tests;
/* The total number of tests that failed. */
static int tests_failed;
/* Flag to request verbose diagnostics. This is set if the envvar
"verbose" exists and is not the empty string. */
static int verbose;
#define TEST_GROUP(description) \
do { \
test_group = (description); \
test_groups ++; \
current_test_group_failed = 0; \
} while (0)
#define STRINGIFY2(x) #x
#define STRINGIFY(x) STRINGIFY2(x)
/* Execute a test. */
#define TEST(description, test, expected) \
do { \
int test_result; \
int expected_result; \
\
tests ++; \
if (verbose) \
{ \
printf ("%d. Checking %s...", \
tests, (description) ?: ""); \
fflush (stdout); \
} \
test_result = (test); \
expected_result = (expected); \
\
if (test_result == expected_result) \
{ \
if (verbose) printf (" ok.\n"); \
} \
else \
{ \
if (!verbose) \
printf ("%d. Checking %s...", \
tests, (description) ?: ""); \
printf (" failed.\n"); \
printf (" %s == %s failed.\n", \
STRINGIFY(test), \
STRINGIFY(expected)); \
tests_failed ++; \
if (! current_test_group_failed) \
{ \
current_test_group_failed = 1; \
test_groups_failed ++; \
} \
} \
} while (0)
/* Test that a condition evaluates to true. */
#define TEST_P(description, test) \
TEST(description, !!(test), 1)
/* Like CHECK, but if the test fails, abort the program. */
#define ASSERT(description, test, expected) \
do { \
int tests_failed_pre = tests_failed; \
CHECK(description, test, expected); \
if (tests_failed_pre != tests_failed) \
exit_tests (1); \
} while (0)
/* Call this if something went wrong. */
#define ABORT(message) \
do { \
printf ("aborting..."); \
if (message) \
printf (" %s\n", (message)); \
\
exit_tests (1); \
} while (0)
/* You need to fill this function in. */
static void do_test (int argc, char *argv[]);
/* Print stats and call the real exit. If FORCE is set use
EXIT_FAILURE even if no test has failed. */
static void
exit_tests (int force)
{
if (tests_failed == 0)
{
if (verbose)
printf ("All %d tests passed.\n", tests);
exit (!!force);
}
else
{
printf ("%d of %d tests failed",
tests_failed, tests);
if (test_groups > 1)
printf (" (%d of %d groups)",
test_groups_failed, test_groups);
printf ("\n");
exit (1);
}
}
/* Prepend FNAME with the srcdir environment variable's value and
return a malloced filename. Caller must release the returned
string using test_free. */
char *
prepend_srcdir (const char *fname)
{
static const char *srcdir;
char *result;
if (!srcdir && !(srcdir = getenv ("abs_top_srcdir")))
srcdir = ".";
result = malloc (strlen (srcdir) + strlen ("/g10/") + strlen (fname) + 1);
strcpy (result, srcdir);
strcat (result, "/g10/");
strcat (result, fname);
return result;
}
void
test_free (void *a)
{
if (a)
free (a);
}
int
main (int argc, char *argv[])
{
const char *s;
(void) test_group;
s = getenv ("verbose");
if (s && *s)
verbose = 1;
do_test (argc, argv);
exit_tests (0);
return !!tests_failed;
}
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