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Make the output of the test case better suited for debugging (output full 

backtrace before failing any unclear asserts)
This commit is contained in:
martin 2014-01-11 19:13:41 +00:00
parent f8e313ca14
commit 030abcd2da
1 changed files with 13 additions and 5 deletions
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18
tests/lib/libexecinfo/t_backtrace.c
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@ -1,4 +1,4 @@
/* $NetBSD: t_backtrace.c,v 1.10 2013/08/16 11:57:15 martin Exp $ */
/* $NetBSD: t_backtrace.c,v 1.11 2014/01/11 19:13:41 martin Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@ -29,11 +29,12 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_backtrace.c,v 1.10 2013/08/16 11:57:15 martin Exp $");
__RCSID("$NetBSD: t_backtrace.c,v 1.11 2014/01/11 19:13:41 martin Exp $");
#include <atf-c.h>
#include <atf-c/config.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <execinfo.h>
#include <unistd.h>
@ -69,12 +70,19 @@ myfunc3(size_t ncalls)
++max_frames;
}
nptrs = backtrace(buffer, __arraycount(buffer));
ATF_REQUIRE(nptrs >= ncalls + 2 + min_frames);
ATF_REQUIRE(nptrs <= ncalls + 2 + max_frames);
strings = backtrace_symbols_fmt(buffer, nptrs, "%n");
ATF_CHECK(strings != NULL);
printf("got nptrs=%zu ncalls=%zu (min_frames: %zu, max_frames: %zu)\n",
nptrs, ncalls, min_frames, max_frames);
printf("backtrace is:\n");
for (j = 0; j < nptrs; j++) {
printf("#%zu: %s\n", j, strings[j]);
}
ATF_REQUIRE(nptrs >= ncalls + 2 + min_frames);
ATF_REQUIRE(nptrs <= ncalls + 2 + max_frames);
ATF_CHECK_STREQ(strings[0], "myfunc3");
ATF_CHECK_STREQ(strings[1], "myfunc2");