mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-23 06:05:27 +00:00
9ba4eb3c08
Make virtTestLoadFile allocate the buffer to read the file into. Fix logic error in virtTestLoadFile, stop reading on the first empty line. Use virFileReadLimFD in virtTestCaptureProgramOutput to avoid manual buffer handling.
686 lines
17 KiB
C
686 lines
17 KiB
C
/*
|
|
* testutils.c: basic test utils
|
|
*
|
|
* Copyright (C) 2005-2011 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"
|
|
#include "buf.h"
|
|
#include "logging.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)
|
|
|
|
#include "files.h"
|
|
|
|
static unsigned int testDebug = -1;
|
|
static unsigned int testVerbose = -1;
|
|
|
|
static unsigned int testOOM = 0;
|
|
static unsigned int testCounter = 0;
|
|
|
|
char *progname;
|
|
char *abs_srcdir;
|
|
|
|
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);
|
|
}
|
|
|
|
ATTRIBUTE_FMT_PRINTF(3,4)
|
|
void virtTestResult(const char *name, int ret, const char *msg, ...)
|
|
{
|
|
va_list vargs;
|
|
va_start(vargs, msg);
|
|
|
|
testCounter++;
|
|
if (virTestGetVerbose()) {
|
|
fprintf(stderr, "%3d) %-60s ", testCounter, name);
|
|
if (ret == 0)
|
|
fprintf(stderr, "OK\n");
|
|
else {
|
|
fprintf(stderr, "FAILED\n");
|
|
if (msg) {
|
|
vfprintf(stderr, msg, vargs);
|
|
}
|
|
}
|
|
} else {
|
|
if (testCounter != 1 &&
|
|
!((testCounter-1) % 40)) {
|
|
fprintf(stderr, " %-3d\n", (testCounter-1));
|
|
fprintf(stderr, " ");
|
|
}
|
|
if (ret == 0)
|
|
fprintf(stderr, ".");
|
|
else
|
|
fprintf(stderr, "!");
|
|
}
|
|
|
|
va_end(vargs);
|
|
}
|
|
|
|
/*
|
|
* 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) {
|
|
if (virTestGetVerbose())
|
|
fprintf(stderr, "%2d) %-65s ... ", testCounter, title);
|
|
}
|
|
|
|
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);
|
|
|
|
virResetLastError();
|
|
ret = body(data);
|
|
virErrorPtr err = virGetLastError();
|
|
if (err) {
|
|
if (virTestGetVerbose() || virTestGetDebug())
|
|
virDispatchError(NULL);
|
|
}
|
|
|
|
if (ret != 0) {
|
|
break;
|
|
}
|
|
|
|
if (ts) {
|
|
GETTIMEOFDAY(&after);
|
|
ts[i] = DIFF_MSEC(&after, &before);
|
|
}
|
|
}
|
|
if (testOOM < 2) {
|
|
if (virTestGetVerbose()) {
|
|
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");
|
|
} else {
|
|
if (testCounter != 1 &&
|
|
!((testCounter-1) % 40)) {
|
|
fprintf(stderr, " %-3d\n", (testCounter-1));
|
|
fprintf(stderr, " ");
|
|
}
|
|
if (ret == 0)
|
|
fprintf(stderr, ".");
|
|
else
|
|
fprintf(stderr, "!");
|
|
}
|
|
}
|
|
|
|
free(ts);
|
|
return ret;
|
|
}
|
|
|
|
/* Allocate BUF to the size of FILE. Read FILE into buffer BUF.
|
|
Upon any failure, diagnose it and return -1, but don't bother trying
|
|
to preserve errno. Otherwise, return the number of bytes copied into BUF. */
|
|
int
|
|
virtTestLoadFile(const char *file, char **buf)
|
|
{
|
|
FILE *fp = fopen(file, "r");
|
|
struct stat st;
|
|
char *tmp;
|
|
int len, tmplen, buflen;
|
|
|
|
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));
|
|
VIR_FORCE_FCLOSE(fp);
|
|
return -1;
|
|
}
|
|
|
|
tmplen = buflen = st.st_size + 1;
|
|
|
|
if (VIR_ALLOC_N(*buf, buflen) < 0) {
|
|
fprintf (stderr, "%s: larger than available memory (> %d)\n", file, buflen);
|
|
VIR_FORCE_FCLOSE(fp);
|
|
return -1;
|
|
}
|
|
|
|
tmp = *buf;
|
|
(*buf)[0] = '\0';
|
|
if (st.st_size) {
|
|
/* read the file line by line */
|
|
while (fgets(tmp, tmplen, fp) != NULL) {
|
|
len = strlen(tmp);
|
|
/* stop on an empty line */
|
|
if (len == 0)
|
|
break;
|
|
/* remove trailing backslash-newline pair */
|
|
if (len >= 2 && tmp[len-2] == '\\' && tmp[len-1] == '\n') {
|
|
len -= 2;
|
|
tmp[len] = '\0';
|
|
}
|
|
/* advance the temporary buffer pointer */
|
|
tmp += len;
|
|
tmplen -= len;
|
|
}
|
|
if (ferror(fp)) {
|
|
fprintf (stderr, "%s: read failed: %s\n", file, strerror(errno));
|
|
VIR_FORCE_FCLOSE(fp);
|
|
free(*buf);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
VIR_FORCE_FCLOSE(fp);
|
|
return strlen(*buf);
|
|
}
|
|
|
|
#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) {
|
|
int tmpfd = i;
|
|
VIR_FORCE_CLOSE(tmpfd);
|
|
}
|
|
}
|
|
|
|
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:
|
|
VIR_FORCE_CLOSE(stdinfd);
|
|
}
|
|
|
|
int
|
|
virtTestCaptureProgramOutput(const char *const argv[], char **buf, int maxlen)
|
|
{
|
|
int pipefd[2];
|
|
int len;
|
|
|
|
if (pipe(pipefd) < 0)
|
|
return -1;
|
|
|
|
int pid = fork();
|
|
switch (pid) {
|
|
case 0:
|
|
VIR_FORCE_CLOSE(pipefd[0]);
|
|
virtTestCaptureProgramExecChild(argv, pipefd[1]);
|
|
|
|
VIR_FORCE_CLOSE(pipefd[1]);
|
|
_exit(1);
|
|
|
|
case -1:
|
|
return -1;
|
|
|
|
default:
|
|
VIR_FORCE_CLOSE(pipefd[1]);
|
|
len = virFileReadLimFD(pipefd[0], maxlen, buf);
|
|
VIR_FORCE_CLOSE(pipefd[0]);
|
|
waitpid(pid, NULL, 0);
|
|
|
|
return len;
|
|
}
|
|
}
|
|
#else /* !WIN32 */
|
|
int
|
|
virtTestCaptureProgramOutput(const char *const argv[] ATTRIBUTE_UNUSED,
|
|
char **buf ATTRIBUTE_UNUSED,
|
|
int maxlen ATTRIBUTE_UNUSED)
|
|
{
|
|
return -1;
|
|
}
|
|
#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 (!virTestGetDebug())
|
|
return 0;
|
|
|
|
if (virTestGetDebug() < 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
|
|
|
|
struct virtTestLogData {
|
|
virBuffer buf;
|
|
};
|
|
|
|
static struct virtTestLogData testLog = { VIR_BUFFER_INITIALIZER };
|
|
|
|
static int
|
|
virtTestLogOutput(const char *category ATTRIBUTE_UNUSED,
|
|
int priority ATTRIBUTE_UNUSED,
|
|
const char *funcname ATTRIBUTE_UNUSED,
|
|
long long lineno ATTRIBUTE_UNUSED,
|
|
const char *str, int len, void *data)
|
|
{
|
|
struct virtTestLogData *log = data;
|
|
virBufferAdd(&log->buf, str, len);
|
|
return len;
|
|
}
|
|
|
|
static void
|
|
virtTestLogClose(void *data)
|
|
{
|
|
struct virtTestLogData *log = data;
|
|
|
|
virBufferFreeAndReset(&log->buf);
|
|
}
|
|
|
|
/* Return a malloc'd string (possibly with strlen of 0) of all data
|
|
* logged since the last call to this function, or NULL on failure. */
|
|
char *
|
|
virtTestLogContentAndReset(void)
|
|
{
|
|
char *ret;
|
|
|
|
if (virBufferError(&testLog.buf))
|
|
return NULL;
|
|
ret = virBufferContentAndReset(&testLog.buf);
|
|
return ret ? ret : strdup("");
|
|
}
|
|
|
|
#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
|
|
|
|
static unsigned int
|
|
virTestGetFlag(const char *name) {
|
|
char *flagStr;
|
|
unsigned int flag;
|
|
|
|
if ((flagStr = getenv(name)) == NULL)
|
|
return 0;
|
|
|
|
if (virStrToLong_ui(flagStr, NULL, 10, &flag) < 0)
|
|
return 0;
|
|
|
|
return flag;
|
|
}
|
|
|
|
unsigned int
|
|
virTestGetDebug(void) {
|
|
if (testDebug == -1)
|
|
testDebug = virTestGetFlag("VIR_TEST_DEBUG");
|
|
return testDebug;
|
|
}
|
|
|
|
unsigned int
|
|
virTestGetVerbose(void) {
|
|
if (testVerbose == -1)
|
|
testVerbose = virTestGetFlag("VIR_TEST_VERBOSE");
|
|
return testVerbose || virTestGetDebug();
|
|
}
|
|
|
|
int virtTestMain(int argc,
|
|
char **argv,
|
|
int (*func)(void))
|
|
{
|
|
int ret;
|
|
bool abs_srcdir_cleanup = false;
|
|
#if TEST_OOM
|
|
int approxAlloc = 0;
|
|
int n;
|
|
char *oomStr = NULL;
|
|
int oomCount;
|
|
int mp = 0;
|
|
pid_t *workers;
|
|
int worker = 0;
|
|
#endif
|
|
|
|
abs_srcdir = getenv("abs_srcdir");
|
|
if (!abs_srcdir) {
|
|
abs_srcdir = getcwd(NULL, 0);
|
|
abs_srcdir_cleanup = true;
|
|
}
|
|
if (!abs_srcdir)
|
|
exit(EXIT_AM_HARDFAIL);
|
|
|
|
progname = argv[0];
|
|
if (STRPREFIX(progname, "./"))
|
|
progname += 2;
|
|
if (argc > 1) {
|
|
fprintf(stderr, "Usage: %s\n", argv[0]);
|
|
return EXIT_FAILURE;
|
|
}
|
|
fprintf(stderr, "TEST: %s\n", progname);
|
|
if (!virTestGetVerbose())
|
|
fprintf(stderr, " ");
|
|
|
|
if (virThreadInitialize() < 0 ||
|
|
virErrorInitialize() < 0 ||
|
|
virRandomInitialize(time(NULL) ^ getpid()))
|
|
return 1;
|
|
|
|
virLogSetFromEnv();
|
|
if (virLogDefineOutput(virtTestLogOutput, virtTestLogClose, &testLog,
|
|
0, 0, NULL, 0) < 0)
|
|
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)();
|
|
if (ret != EXIT_SUCCESS)
|
|
goto cleanup;
|
|
|
|
# if TEST_OOM_TRACE
|
|
if (virTestGetDebug())
|
|
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)();
|
|
if (ret != EXIT_SUCCESS)
|
|
goto cleanup;
|
|
|
|
approxAlloc = virAllocTestCount();
|
|
testCounter++;
|
|
if (virTestGetDebug())
|
|
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 (!virTestGetDebug()) {
|
|
if (mp)
|
|
fprintf(stderr, "%d", worker);
|
|
else
|
|
fprintf(stderr, ".");
|
|
fflush(stderr);
|
|
}
|
|
virAllocTestOOM(n+1, oomCount);
|
|
|
|
if (((func)()) != 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 (virTestGetDebug())
|
|
fprintf(stderr, " ... OOM of %d allocs", approxAlloc);
|
|
|
|
if (ret == EXIT_SUCCESS)
|
|
fprintf(stderr, " OK\n");
|
|
else
|
|
fprintf(stderr, " FAILED\n");
|
|
}
|
|
cleanup:
|
|
#else
|
|
ret = (func)();
|
|
#endif
|
|
|
|
if (abs_srcdir_cleanup)
|
|
VIR_FREE(abs_srcdir);
|
|
virResetLastError();
|
|
if (!virTestGetVerbose()) {
|
|
int i;
|
|
for (i = (testCounter % 40) ; i > 0 && i < 40 ; i++)
|
|
fprintf(stderr, " ");
|
|
fprintf(stderr, " %-3d %s\n", testCounter, ret == 0 ? "OK" : "FAIL");
|
|
}
|
|
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
|