mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-24 22:55:23 +00:00
9710856b33
Provide a simple interface for other tests to lookup the testDebug variable. Also remove a redundant error message in interface tests. If anyone feels inclined to change this env variable to match the existing LIBVIRT_* format, it should now be easier to do so.
530 lines
13 KiB
C
530 lines
13 KiB
C
/*
|
|
* testutils.c: basic test utils
|
|
*
|
|
* Copyright (C) 2005-2009 Red Hat, Inc.
|
|
*
|
|
* See COPYING.LIB for the License of this software
|
|
*
|
|
* Karel Zak <kzak@redhat.com>
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#ifndef WIN32
|
|
#include <sys/wait.h>
|
|
#endif
|
|
#ifdef HAVE_REGEX_H
|
|
#include <regex.h>
|
|
#endif
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <fcntl.h>
|
|
#include <limits.h>
|
|
#include "testutils.h"
|
|
#include "internal.h"
|
|
#include "memory.h"
|
|
#include "util.h"
|
|
#include "threads.h"
|
|
#include "virterror_internal.h"
|
|
|
|
#if TEST_OOM_TRACE
|
|
#include <execinfo.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_PATHS_H
|
|
#include <paths.h>
|
|
#endif
|
|
|
|
#define GETTIMEOFDAY(T) gettimeofday(T, NULL)
|
|
#define DIFF_MSEC(T, U) \
|
|
((((int) ((T)->tv_sec - (U)->tv_sec)) * 1000000.0 + \
|
|
((int) ((T)->tv_usec - (U)->tv_usec))) / 1000.0)
|
|
|
|
static unsigned int testDebug = -1;
|
|
|
|
static unsigned int testOOM = 0;
|
|
static unsigned int testCounter = 0;
|
|
|
|
double
|
|
virtTestCountAverage(double *items, int nitems)
|
|
{
|
|
long double sum = 0;
|
|
int i;
|
|
|
|
for (i=1; i < nitems; i++)
|
|
sum += items[i];
|
|
|
|
return (double) (sum / nitems);
|
|
}
|
|
|
|
/*
|
|
* Runs test and count average time (if the nloops is grater than 1)
|
|
*
|
|
* returns: -1 = error, 0 = success
|
|
*/
|
|
int
|
|
virtTestRun(const char *title, int nloops, int (*body)(const void *data), const void *data)
|
|
{
|
|
int i, ret = 0;
|
|
double *ts = NULL;
|
|
|
|
testCounter++;
|
|
|
|
if (testOOM < 2) {
|
|
fprintf(stderr, "%2d) %-65s ... ", testCounter, title);
|
|
fflush(stderr);
|
|
}
|
|
|
|
if (nloops > 1 && (ts = calloc(nloops,
|
|
sizeof(double)))==NULL)
|
|
return -1;
|
|
|
|
for (i=0; i < nloops; i++) {
|
|
struct timeval before, after;
|
|
|
|
if (ts)
|
|
GETTIMEOFDAY(&before);
|
|
if ((ret = body(data)) != 0)
|
|
break;
|
|
if (ts) {
|
|
GETTIMEOFDAY(&after);
|
|
ts[i] = DIFF_MSEC(&after, &before);
|
|
}
|
|
}
|
|
if (testOOM < 2) {
|
|
if (ret == 0 && ts)
|
|
fprintf(stderr, "OK [%.5f ms]\n",
|
|
virtTestCountAverage(ts, nloops));
|
|
else if (ret == 0)
|
|
fprintf(stderr, "OK\n");
|
|
else
|
|
fprintf(stderr, "FAILED\n");
|
|
}
|
|
|
|
free(ts);
|
|
return ret;
|
|
}
|
|
|
|
/* Read FILE into buffer BUF of length BUFLEN.
|
|
Upon any failure, or if FILE appears to contain more than BUFLEN bytes,
|
|
diagnose it and return -1, but don't bother trying to preserve errno.
|
|
Otherwise, return the number of bytes read (and copied into BUF). */
|
|
int virtTestLoadFile(const char *file,
|
|
char **buf,
|
|
int buflen) {
|
|
FILE *fp = fopen(file, "r");
|
|
struct stat st;
|
|
|
|
if (!fp) {
|
|
fprintf (stderr, "%s: failed to open: %s\n", file, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (fstat(fileno(fp), &st) < 0) {
|
|
fprintf (stderr, "%s: failed to fstat: %s\n", file, strerror(errno));
|
|
fclose(fp);
|
|
return -1;
|
|
}
|
|
|
|
if (st.st_size > (buflen-1)) {
|
|
fprintf (stderr, "%s: larger than buffer (> %d)\n", file, buflen-1);
|
|
fclose(fp);
|
|
return -1;
|
|
}
|
|
|
|
if (st.st_size) {
|
|
if (fread(*buf, st.st_size, 1, fp) != 1) {
|
|
fprintf (stderr, "%s: read failed: %s\n", file, strerror(errno));
|
|
fclose(fp);
|
|
return -1;
|
|
}
|
|
}
|
|
(*buf)[st.st_size] = '\0';
|
|
|
|
fclose(fp);
|
|
return st.st_size;
|
|
}
|
|
|
|
#ifndef WIN32
|
|
static
|
|
void virtTestCaptureProgramExecChild(const char *const argv[],
|
|
int pipefd) {
|
|
int i;
|
|
int open_max;
|
|
int stdinfd = -1;
|
|
const char *const env[] = {
|
|
"LANG=C",
|
|
#if WITH_DRIVER_MODULES
|
|
"LIBVIRT_DRIVER_DIR=" TEST_DRIVER_DIR,
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
if ((stdinfd = open("/dev/null", O_RDONLY)) < 0)
|
|
goto cleanup;
|
|
|
|
open_max = sysconf (_SC_OPEN_MAX);
|
|
for (i = 0; i < open_max; i++) {
|
|
if (i != stdinfd &&
|
|
i != pipefd)
|
|
close(i);
|
|
}
|
|
|
|
if (dup2(stdinfd, STDIN_FILENO) != STDIN_FILENO)
|
|
goto cleanup;
|
|
if (dup2(pipefd, STDOUT_FILENO) != STDOUT_FILENO)
|
|
goto cleanup;
|
|
if (dup2(pipefd, STDERR_FILENO) != STDERR_FILENO)
|
|
goto cleanup;
|
|
|
|
/* SUS is crazy here, hence the cast */
|
|
execve(argv[0], (char *const*)argv, (char *const*)env);
|
|
|
|
cleanup:
|
|
if (stdinfd != -1)
|
|
close(stdinfd);
|
|
}
|
|
|
|
int virtTestCaptureProgramOutput(const char *const argv[],
|
|
char **buf,
|
|
int buflen) {
|
|
int pipefd[2];
|
|
|
|
if (pipe(pipefd) < 0)
|
|
return -1;
|
|
|
|
int pid = fork();
|
|
switch (pid) {
|
|
case 0:
|
|
close(pipefd[0]);
|
|
virtTestCaptureProgramExecChild(argv, pipefd[1]);
|
|
|
|
close(pipefd[1]);
|
|
_exit(1);
|
|
|
|
case -1:
|
|
return -1;
|
|
|
|
default:
|
|
{
|
|
int got = 0;
|
|
int ret = -1;
|
|
int want = buflen-1;
|
|
|
|
close(pipefd[1]);
|
|
|
|
while (want) {
|
|
if ((ret = read(pipefd[0], (*buf)+got, want)) <= 0)
|
|
break;
|
|
got += ret;
|
|
want -= ret;
|
|
}
|
|
close(pipefd[0]);
|
|
|
|
if (!ret)
|
|
(*buf)[got] = '\0';
|
|
|
|
waitpid(pid, NULL, 0);
|
|
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
#endif /* !WIN32 */
|
|
|
|
|
|
/**
|
|
* @param stream: output stream write to differences to
|
|
* @param expect: expected output text
|
|
* @param actual: actual output text
|
|
*
|
|
* Display expected and actual output text, trimmed to
|
|
* first and last characters at which differences occur
|
|
*/
|
|
int virtTestDifference(FILE *stream,
|
|
const char *expect,
|
|
const char *actual)
|
|
{
|
|
const char *expectStart = expect;
|
|
const char *expectEnd = expect + (strlen(expect)-1);
|
|
const char *actualStart = actual;
|
|
const char *actualEnd = actual + (strlen(actual)-1);
|
|
|
|
if (!virtTestGetDebug())
|
|
return 0;
|
|
|
|
if (virtTestGetDebug() < 2) {
|
|
/* Skip to first character where they differ */
|
|
while (*expectStart && *actualStart &&
|
|
*actualStart == *expectStart) {
|
|
actualStart++;
|
|
expectStart++;
|
|
}
|
|
|
|
/* Work backwards to last character where they differ */
|
|
while (actualEnd > actualStart &&
|
|
expectEnd > expectStart &&
|
|
*actualEnd == *expectEnd) {
|
|
actualEnd--;
|
|
expectEnd--;
|
|
}
|
|
}
|
|
|
|
/* Show the trimmed differences */
|
|
fprintf(stream, "\nExpect [");
|
|
if ((expectEnd - expectStart + 1) &&
|
|
fwrite(expectStart, (expectEnd-expectStart+1), 1, stream) != 1)
|
|
return -1;
|
|
fprintf(stream, "]\n");
|
|
fprintf(stream, "Actual [");
|
|
if ((actualEnd - actualStart + 1) &&
|
|
fwrite(actualStart, (actualEnd-actualStart+1), 1, stream) != 1)
|
|
return -1;
|
|
fprintf(stream, "]\n");
|
|
|
|
/* Pad to line up with test name ... in virTestRun */
|
|
fprintf(stream, " ... ");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if TEST_OOM
|
|
static void
|
|
virtTestErrorFuncQuiet(void *data ATTRIBUTE_UNUSED,
|
|
virErrorPtr err ATTRIBUTE_UNUSED)
|
|
{ }
|
|
#endif
|
|
|
|
#if TEST_OOM_TRACE
|
|
static void
|
|
virtTestErrorHook(int n, void *data ATTRIBUTE_UNUSED)
|
|
{
|
|
void *trace[30];
|
|
int ntrace = ARRAY_CARDINALITY(trace);
|
|
int i;
|
|
char **symbols = NULL;
|
|
|
|
ntrace = backtrace(trace, ntrace);
|
|
symbols = backtrace_symbols(trace, ntrace);
|
|
if (symbols) {
|
|
fprintf(stderr, "Failing allocation %d at:\n", n);
|
|
for (i = 0 ; i < ntrace ; i++) {
|
|
if (symbols[i])
|
|
fprintf(stderr, " TRACE: %s\n", symbols[i]);
|
|
}
|
|
free(symbols);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
unsigned int
|
|
virtTestGetDebug() {
|
|
char *debugStr;
|
|
unsigned int debug;
|
|
|
|
if (testDebug != -1)
|
|
return testDebug;
|
|
|
|
testDebug = 0;
|
|
|
|
if ((debugStr = getenv("VIR_TEST_DEBUG")) == NULL)
|
|
return 0;
|
|
|
|
if (virStrToLong_ui(debugStr, NULL, 10, &debug) < 0)
|
|
return 0;
|
|
|
|
testDebug = debug;
|
|
return testDebug;
|
|
}
|
|
|
|
int virtTestMain(int argc,
|
|
char **argv,
|
|
int (*func)(int, char **))
|
|
{
|
|
int ret;
|
|
#if TEST_OOM
|
|
int approxAlloc = 0;
|
|
int n;
|
|
char *oomStr = NULL;
|
|
int oomCount;
|
|
int mp = 0;
|
|
pid_t *workers;
|
|
int worker = 0;
|
|
#endif
|
|
|
|
if (virThreadInitialize() < 0 ||
|
|
virErrorInitialize() < 0 ||
|
|
virRandomInitialize(time(NULL) ^ getpid()))
|
|
return 1;
|
|
|
|
|
|
#if TEST_OOM
|
|
if ((oomStr = getenv("VIR_TEST_OOM")) != NULL) {
|
|
if (virStrToLong_i(oomStr, NULL, 10, &oomCount) < 0)
|
|
oomCount = 0;
|
|
|
|
if (oomCount < 0)
|
|
oomCount = 0;
|
|
if (oomCount)
|
|
testOOM = 1;
|
|
}
|
|
|
|
if (getenv("VIR_TEST_MP") != NULL) {
|
|
mp = sysconf(_SC_NPROCESSORS_ONLN);
|
|
fprintf(stderr, "Using %d worker processes\n", mp);
|
|
if (VIR_ALLOC_N(workers, mp) < 0) {
|
|
ret = EXIT_FAILURE;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
/* Run once to prime any static allocations & ensure it passes */
|
|
ret = (func)(argc, argv);
|
|
if (ret != EXIT_SUCCESS)
|
|
goto cleanup;
|
|
|
|
#if TEST_OOM_TRACE
|
|
if (virtTestGetDebug())
|
|
virAllocTestHook(virtTestErrorHook, NULL);
|
|
#endif
|
|
|
|
if (testOOM) {
|
|
/* Makes next test runs quiet... */
|
|
testOOM++;
|
|
virSetErrorFunc(NULL, virtTestErrorFuncQuiet);
|
|
|
|
virAllocTestInit();
|
|
|
|
/* Run again to count allocs, and ensure it passes :-) */
|
|
ret = (func)(argc, argv);
|
|
if (ret != EXIT_SUCCESS)
|
|
goto cleanup;
|
|
|
|
approxAlloc = virAllocTestCount();
|
|
testCounter++;
|
|
if (virtTestGetDebug())
|
|
fprintf(stderr, "%d) OOM...\n", testCounter);
|
|
else
|
|
fprintf(stderr, "%d) OOM of %d allocs ", testCounter, approxAlloc);
|
|
|
|
if (mp) {
|
|
int i;
|
|
for (i = 0 ; i < mp ; i++) {
|
|
workers[i] = fork();
|
|
if (workers[i] == 0) {
|
|
worker = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Run once for each alloc, failing a different one
|
|
and validating that the test case failed */
|
|
for (n = 0; n < approxAlloc && (!mp || worker) ; n++) {
|
|
if (mp &&
|
|
(n % mp) != (worker - 1))
|
|
continue;
|
|
if (!virtTestGetDebug()) {
|
|
if (mp)
|
|
fprintf(stderr, "%d", worker);
|
|
else
|
|
fprintf(stderr, ".");
|
|
fflush(stderr);
|
|
}
|
|
virAllocTestOOM(n+1, oomCount);
|
|
|
|
if (((func)(argc, argv)) != EXIT_FAILURE) {
|
|
ret = EXIT_FAILURE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (mp) {
|
|
if (worker) {
|
|
_exit(ret);
|
|
} else {
|
|
int i, status;
|
|
for (i = 0 ; i < mp ; i++) {
|
|
waitpid(workers[i], &status, 0);
|
|
if (WEXITSTATUS(status) != EXIT_SUCCESS)
|
|
ret = EXIT_FAILURE;
|
|
}
|
|
VIR_FREE(workers);
|
|
}
|
|
}
|
|
|
|
if (virtTestGetDebug())
|
|
fprintf(stderr, " ... OOM of %d allocs", approxAlloc);
|
|
|
|
if (ret == EXIT_SUCCESS)
|
|
fprintf(stderr, " OK\n");
|
|
else
|
|
fprintf(stderr, " FAILED\n");
|
|
}
|
|
cleanup:
|
|
#else
|
|
ret = (func)(argc, argv);
|
|
#endif
|
|
|
|
virResetLastError();
|
|
return ret;
|
|
}
|
|
|
|
|
|
#ifdef HAVE_REGEX_H
|
|
int virtTestClearLineRegex(const char *pattern,
|
|
char *str)
|
|
{
|
|
regex_t reg;
|
|
char *lineStart = str;
|
|
char *lineEnd = strchr(str, '\n');
|
|
|
|
if (regcomp(®, pattern, REG_EXTENDED | REG_NOSUB) != 0)
|
|
return -1;
|
|
|
|
while (lineStart) {
|
|
int ret;
|
|
if (lineEnd)
|
|
*lineEnd = '\0';
|
|
|
|
|
|
ret = regexec(®, lineStart, 0, NULL, 0);
|
|
//fprintf(stderr, "Match %d '%s' '%s'\n", ret, lineStart, pattern);
|
|
if (ret == 0) {
|
|
if (lineEnd) {
|
|
memmove(lineStart, lineEnd + 1, strlen(lineEnd+1) + 1);
|
|
/* Don't update lineStart - just iterate again on this
|
|
location */
|
|
lineEnd = strchr(lineStart, '\n');
|
|
} else {
|
|
*lineStart = '\0';
|
|
lineStart = NULL;
|
|
}
|
|
} else {
|
|
if (lineEnd) {
|
|
*lineEnd = '\n';
|
|
lineStart = lineEnd + 1;
|
|
lineEnd = strchr(lineStart, '\n');
|
|
} else {
|
|
lineStart = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
regfree(®);
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
int virtTestClearLineRegex(const char *pattern ATTRIBUTE_UNUSED,
|
|
char *str ATTRIBUTE_UNUSED)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|