libvirt/tests/testutils.h
Eric Blake 38d4bf49a0 tests: add helper to determine when to skip expensive tests
The logic set up in previous patch for exposing VIR_TEST_EXPENSIVE
to individual tests is as follows:

make check VIR_TEST_EXPENSIVE=0   => getenv("VIR_TEST_EXPENSIVE") sees "0"
make check VIR_TEST_EXPENSIVE=1   => getenv("VIR_TEST_EXPENSIVE") sees "1"
make check                        => getenv("VIR_TEST_EXPENSIVE") sees
either "0" or "1", based on configure options
cd tests; ./FOOtest               => getenv("VIR_TEST_EXPENSIVE") sees
whatever is in your environment (usually NULL, but possibly garbage)

Merely checking if VIR_TEST_EXPENSIVE is set in the environment
does the wrong thing; likewise, it is unsafe to assume the
variable will always contain a valid number.

As such, it helps to have helper functions, instead of making each
expensive test repeat the probe of the environment.

* tests/testutils.h (virTestGetExpensive): New prototype.
* tests/testutils.c (virTestGetExpensive): Implement it.
* tests/test-lib.sh (very_expensive_): Rename...
(test_expensive): ...and tweak to use VIR_TEST_EXPENSIVE.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-08-12 10:06:41 -06:00

104 lines
3.9 KiB
C

/*
* utils.c: test utils
*
* Copyright (C) 2005, 2008-2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Karel Zak <kzak@redhat.com>
*/
#ifndef __VIT_TEST_UTILS_H__
# define __VIT_TEST_UTILS_H__
# include <stdio.h>
# include "viralloc.h"
# include "virfile.h"
# include "virstring.h"
# define EXIT_AM_SKIP 77 /* tell Automake we're skipping a test */
# define EXIT_AM_HARDFAIL 99 /* tell Automake that the framework is broken */
/* Work around lack of gnulib support for fprintf %z */
# ifndef NO_LIBVIRT
# undef fprintf
# define fprintf virFilePrintf
# endif
extern char *progname;
extern char *abs_srcdir;
double virtTestCountAverage(double *items,
int nitems);
void virtTestResult(const char *name, int ret, const char *msg, ...)
ATTRIBUTE_FMT_PRINTF(3,4);
int virtTestRun(const char *title,
int nloops,
int (*body)(const void *data),
const void *data);
int virtTestLoadFile(const char *file, char **buf);
int virtTestCaptureProgramOutput(const char *const argv[], char **buf, int maxlen);
int virtTestClearLineRegex(const char *pattern,
char *string);
int virtTestDifference(FILE *stream,
const char *expect,
const char *actual);
int virtTestDifferenceBin(FILE *stream,
const char *expect,
const char *actual,
size_t length);
unsigned int virTestGetDebug(void);
unsigned int virTestGetVerbose(void);
unsigned int virTestGetExpensive(void);
char *virtTestLogContentAndReset(void);
int virtTestMain(int argc,
char **argv,
int (*func)(void));
/* Setup, then call func() */
# define VIRT_TEST_MAIN(func) \
int main(int argc, char **argv) { \
return virtTestMain(argc, argv, func); \
}
# define VIRT_TEST_MAIN_PRELOAD(func, lib) \
int main(int argc, char **argv) { \
const char *preload = getenv("LD_PRELOAD"); \
if (preload == NULL || strstr(preload, lib) == NULL) { \
char *newenv; \
if (!virFileIsExecutable(lib)) { \
perror(lib); \
return EXIT_FAILURE; \
} \
if (!preload) { \
newenv = (char *) lib; \
} else if (virAsprintf(&newenv, "%s:%s", lib, preload) < 0) { \
perror("virAsprintf"); \
return EXIT_FAILURE; \
} \
setenv("LD_PRELOAD", newenv, 1); \
execv(argv[0], argv); \
} \
return virtTestMain(argc, argv, func); \
}
#endif /* __VIT_TEST_UTILS_H__ */