e0561ac68d
Detect file descriptor leaks in tests. Add a sanity test to verify that we catch the leaks. Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
147 lines
3.5 KiB
C
147 lines
3.5 KiB
C
/*
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* Copyright © 2012 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#define _GNU_SOURCE
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <string.h>
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#include <assert.h>
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#include <dlfcn.h>
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#include <errno.h>
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#include "test-runner.h"
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static int num_alloc;
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static void* (*sys_malloc)(size_t);
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static void (*sys_free)(void*);
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extern const struct test __start_test_section, __stop_test_section;
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__attribute__ ((visibility("default"))) void *
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malloc(size_t size)
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{
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num_alloc++;
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return sys_malloc(size);
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}
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__attribute__ ((visibility("default"))) void
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free(void* mem)
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{
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if (mem != NULL)
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num_alloc--;
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sys_free(mem);
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}
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static const struct test *
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find_test(const char *name)
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{
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const struct test *t;
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for (t = &__start_test_section; t < &__stop_test_section; t++)
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if (strcmp(t->name, name) == 0)
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return t;
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return NULL;
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}
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static void
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run_test(const struct test *t)
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{
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int cur_alloc = num_alloc;
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int cur_fds;
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cur_fds = count_open_fds();
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t->run();
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assert(cur_alloc == num_alloc && "memory leak detected in test.");
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assert(cur_fds == count_open_fds() && "fd leak detected");
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exit(EXIT_SUCCESS);
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}
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int main(int argc, char *argv[])
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{
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const struct test *t;
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pid_t pid;
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int total, pass;
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siginfo_t info;
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/* Load system malloc and free */
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sys_malloc = dlsym(RTLD_NEXT, "malloc");
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sys_free = dlsym(RTLD_NEXT, "free");
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if (argc == 2) {
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t = find_test(argv[1]);
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if (t == NULL) {
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fprintf(stderr, "unknown test: \"%s\"\n", argv[1]);
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exit(EXIT_FAILURE);
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}
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run_test(t);
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}
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pass = 0;
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for (t = &__start_test_section; t < &__stop_test_section; t++) {
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int success = 0;
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pid = fork();
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assert(pid >= 0);
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if (pid == 0)
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run_test(t); /* never returns */
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if (waitid(P_ALL, 0, &info, WEXITED)) {
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fprintf(stderr, "waitid failed: %m\n");
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abort();
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}
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fprintf(stderr, "test \"%s\":\t", t->name);
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switch (info.si_code) {
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case CLD_EXITED:
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fprintf(stderr, "exit status %d", info.si_status);
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if (info.si_status == EXIT_SUCCESS)
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success = 1;
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break;
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case CLD_KILLED:
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case CLD_DUMPED:
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fprintf(stderr, "signal %d", info.si_status);
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break;
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}
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if (t->must_fail)
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success = !success;
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if (success) {
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pass++;
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fprintf(stderr, ", pass.\n");
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} else
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fprintf(stderr, ", fail.\n");
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}
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total = &__stop_test_section - &__start_test_section;
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fprintf(stderr, "%d tests, %d pass, %d fail\n",
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total, pass, total - pass);
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return pass == total ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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