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libvirt/tests/testutils.c

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/*
* testutils.c: basic test utils
*
* Copyright (C) 2005-2015 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/>.
*/
#include <config.h>
#include <stdarg.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <regex.h>
#include <unistd.h>
#include <fcntl.h>
#include "testutils.h"
#include "internal.h"
#include "viralloc.h"
#include "virutil.h"
#include "virthread.h"
#include "virerror.h"
#include "virbuffer.h"
#include "virlog.h"
#include "vircommand.h"
#include "virrandom.h"
#include "dirname.h"
#include "virprocess.h"
#include "virstring.h"
#ifdef TEST_OOM
# ifdef TEST_OOM_TRACE
# include <dlfcn.h>
# include <execinfo.h>
# endif
#endif
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("tests.testutils");
#include "virbitmap.h"
#include "virfile.h"
static unsigned int testDebug = -1;
static unsigned int testVerbose = -1;
static unsigned int testExpensive = -1;
static unsigned int testRegenerate = -1;
#ifdef TEST_OOM
static unsigned int testOOM;
static unsigned int testOOMStart = -1;
static unsigned int testOOMEnd = -1;
static unsigned int testOOMTrace;
# ifdef TEST_OOM_TRACE
void *testAllocStack[30];
int ntestAllocStack;
# endif
#endif
static bool testOOMActive;
static size_t testCounter;
static virBitmapPtr testBitmap;
char *progname;
static char *perl;
bool virTestOOMActive(void)
{
return testOOMActive;
}
static int virTestUseTerminalColors(void)
{
return isatty(STDOUT_FILENO);
}
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;
}
#ifdef TEST_OOM_TRACE
static void virTestAllocHook(int nalloc ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
ntestAllocStack = backtrace(testAllocStack, ARRAY_CARDINALITY(testAllocStack));
}
#endif
#ifdef TEST_OOM_TRACE
static void
virTestShowTrace(void)
{
size_t j;
for (j = 2; j < ntestAllocStack; j++) {
Dl_info info;
char *cmd;
dladdr(testAllocStack[j], &info);
if (info.dli_fname &&
strstr(info.dli_fname, ".so")) {
if (virAsprintf(&cmd, ADDR2LINE " -f -e %s %p",
info.dli_fname,
((void*)((unsigned long long)testAllocStack[j]
- (unsigned long long)info.dli_fbase))) < 0)
continue;
} else {
if (virAsprintf(&cmd, ADDR2LINE " -f -e %s %p",
(char*)(info.dli_fname ? info.dli_fname : "<unknown>"),
testAllocStack[j]) < 0)
continue;
}
ignore_value(system(cmd));
VIR_FREE(cmd);
}
}
#endif
/*
* Runs test
*
* returns: -1 = error, 0 = success
*/
int
virTestRun(const char *title,
int (*body)(const void *data), const void *data)
{
int ret = 0;
/* Some test are fragile about environ settings. If that's
* the case, don't poison it. */
if (getenv("VIR_TEST_MOCK_PROGNAME"))
setenv("VIR_TEST_MOCK_TESTNAME", title, 1);
if (testCounter == 0 && !virTestGetVerbose())
fprintf(stderr, " ");
testCounter++;
/* Skip tests if out of range */
if (testBitmap && !virBitmapIsBitSet(testBitmap, testCounter))
return 0;
if (virTestGetVerbose())
fprintf(stderr, "%2zu) %-65s ... ", testCounter, title);
virResetLastError();
ret = body(data);
if (virGetLastErrorCode()) {
if (virTestGetVerbose() || virTestGetDebug())
virDispatchError(NULL);
}
if (virTestGetVerbose()) {
if (ret == 0)
if (virTestUseTerminalColors())
fprintf(stderr, "\e[32mOK\e[0m\n"); /* green */
else
fprintf(stderr, "OK\n");
else if (ret == EXIT_AM_SKIP)
if (virTestUseTerminalColors())
fprintf(stderr, "\e[34m\e[1mSKIP\e[0m\n"); /* bold blue */
else
fprintf(stderr, "SKIP\n");
else
if (virTestUseTerminalColors())
fprintf(stderr, "\e[31m\e[1mFAILED\e[0m\n"); /* bold red */
else
fprintf(stderr, "FAILED\n");
} else {
if (testCounter != 1 &&
!((testCounter-1) % 40)) {
fprintf(stderr, " %-3zu\n", (testCounter-1));
fprintf(stderr, " ");
}
if (ret == 0)
fprintf(stderr, ".");
else if (ret == EXIT_AM_SKIP)
fprintf(stderr, "_");
else
fprintf(stderr, "!");
}
#ifdef TEST_OOM
if (testOOM && ret != EXIT_AM_SKIP) {
int nalloc;
int oomret;
int start, end;
size_t i;
virResetLastError();
virAllocTestInit();
# ifdef TEST_OOM_TRACE
virAllocTestHook(virTestAllocHook, NULL);
# endif
oomret = body(data);
nalloc = virAllocTestCount();
fprintf(stderr, " Test OOM for nalloc=%d ", nalloc);
if (testOOMStart == -1 ||
testOOMEnd == -1) {
start = 0;
end = nalloc;
} else {
start = testOOMStart;
end = testOOMEnd + 1;
}
testOOMActive = true;
for (i = start; i < end; i++) {
bool missingFail = false;
# ifdef TEST_OOM_TRACE
memset(testAllocStack, 0, sizeof(testAllocStack));
ntestAllocStack = 0;
# endif
virAllocTestOOM(i + 1, 1);
oomret = body(data);
/* fprintf() disabled because XML parsing APIs don't allow
* distinguish between element / attribute not present
* in the XML (which is non-fatal), vs OOM / malformed
* which should be fatal. Thus error reporting for
* optionally present XML is mostly broken.
*/
if (oomret == 0) {
missingFail = true;
# if 0
fprintf(stderr, " alloc %zu failed but no err status\n", i + 1);
# endif
} else {
if (virGetLastErrorCode() == VIR_ERR_OK) {
# if 0
fprintf(stderr, " alloc %zu failed but no error report\n", i + 1);
# endif
missingFail = true;
}
}
if ((missingFail && testOOMTrace) || (testOOMTrace > 1)) {
fprintf(stderr, "%s", "!");
# ifdef TEST_OOM_TRACE
virTestShowTrace();
# endif
ret = -1;
} else {
fprintf(stderr, "%s", ".");
}
}
testOOMActive = false;
if (ret == 0)
fprintf(stderr, " OK\n");
else
fprintf(stderr, " FAILED\n");
virAllocTestInit();
}
#endif /* TEST_OOM */
unsetenv("VIR_TEST_MOCK_TESTNAME");
return ret;
}
/**
* virTestLoadFile:
* @file: name of the file to load
* @buf: buffer to load the file into
*
* Allocates @buf to the size of FILE. Reads FILE into buffer BUF.
* Upon any failure, error is printed to stderr and -1 is returned. 'errno' is
* not preserved. On success 0 is returned. Caller is responsible for freeing
* @buf.
*/
int
virTestLoadFile(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) {
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);
VIR_FREE(*buf);
return -1;
}
}
VIR_FORCE_FCLOSE(fp);
return 0;
}
static char *
virTestLoadFileGetPath(const char *p,
va_list ap)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *path = NULL;
virBufferAddLit(&buf, abs_srcdir "/");
if (p) {
virBufferAdd(&buf, p, -1);
virBufferStrcatVArgs(&buf, ap);
}
if (!(path = virBufferContentAndReset(&buf)))
VIR_TEST_VERBOSE("failed to format file path");
return path;
}
/**
* virTestLoadFilePath:
* @...: file name components terminated with a NULL
*
* Constructs the test file path from variable arguments and loads the file.
* 'abs_srcdir' is automatically prepended.
*/
char *
virTestLoadFilePath(const char *p, ...)
{
char *path = NULL;
char *ret = NULL;
va_list ap;
va_start(ap, p);
if (!(path = virTestLoadFileGetPath(p, ap)))
goto cleanup;
ignore_value(virTestLoadFile(path, &ret));
cleanup:
va_end(ap);
VIR_FREE(path);
return ret;
}
/**
* virTestLoadFileJSON:
* @...: name components terminated with a NULL
*
* Constructs the test file path from variable arguments and loads and parses
* the JSON file. 'abs_srcdir' is automatically prepended to the path.
*/
virJSONValuePtr
virTestLoadFileJSON(const char *p, ...)
{
virJSONValuePtr ret = NULL;
char *jsonstr = NULL;
char *path = NULL;
va_list ap;
va_start(ap, p);
if (!(path = virTestLoadFileGetPath(p, ap)))
goto cleanup;
if (virTestLoadFile(path, &jsonstr) < 0)
goto cleanup;
if (!(ret = virJSONValueFromString(jsonstr)))
VIR_TEST_VERBOSE("failed to parse json from file '%s'", path);
cleanup:
va_end(ap);
VIR_FREE(jsonstr);
VIR_FREE(path);
return ret;
}
#ifndef WIN32
static
void virTestCaptureProgramExecChild(const char *const argv[],
int pipefd)
{
size_t i;
int open_max;
int stdinfd = -1;
const char *const env[] = {
"LANG=C",
"LIBVIRT_DRIVER_DIR=" TEST_DRIVER_DIR,
NULL
};
if ((stdinfd = open("/dev/null", O_RDONLY)) < 0)
goto cleanup;
open_max = sysconf(_SC_OPEN_MAX);
if (open_max < 0)
goto cleanup;
for (i = 0; i < open_max; i++) {
if (i != stdinfd &&
i != pipefd) {
int tmpfd;
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
virTestCaptureProgramOutput(const char *const argv[], char **buf, int maxlen)
{
int pipefd[2];
int len;
if (pipe(pipefd) < 0)
return -1;
pid_t pid = fork();
switch (pid) {
case 0:
VIR_FORCE_CLOSE(pipefd[0]);
virTestCaptureProgramExecChild(argv, pipefd[1]);
VIR_FORCE_CLOSE(pipefd[1]);
_exit(EXIT_FAILURE);
case -1:
return -1;
default:
VIR_FORCE_CLOSE(pipefd[1]);
len = virFileReadLimFD(pipefd[0], maxlen, buf);
VIR_FORCE_CLOSE(pipefd[0]);
if (virProcessWait(pid, NULL, false) < 0)
return -1;
return len;
}
}
#else /* !WIN32 */
int
virTestCaptureProgramOutput(const char *const argv[] ATTRIBUTE_UNUSED,
char **buf ATTRIBUTE_UNUSED,
int maxlen ATTRIBUTE_UNUSED)
{
return -1;
}
#endif /* !WIN32 */
static int
virTestRewrapFile(const char *filename)
{
int ret = -1;
char *script = NULL;
virCommandPtr cmd = NULL;
if (!(virFileHasSuffix(filename, ".args") ||
virFileHasSuffix(filename, ".ldargs")))
return 0;
if (!perl) {
fprintf(stderr, "cannot rewrap %s: unable to find perl in path", filename);
return -1;
}
if (virAsprintf(&script, "%s/test-wrap-argv.pl", abs_srcdir) < 0)
goto cleanup;
cmd = virCommandNewArgList(perl, script, "--in-place", filename, NULL);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(script);
virCommandFree(cmd);
return ret;
}
/**
* @param stream: output stream to write differences to
* @param expect: expected output text
* @param expectName: name designator of the expected text
* @param actual: actual output text
* @param actualName: name designator of the actual text
* @param regenerate: enable or disable regenerate functionality
*
* Display expected and actual output text, trimmed to first and last
* characters at which differences occur. Displays names of the text strings if
* non-NULL.
*/
static int
virTestDifferenceFullInternal(FILE *stream,
const char *expect,
const char *expectName,
const char *actual,
const char *actualName,
bool regenerate)
{
const char *expectStart;
const char *expectEnd;
const char *actualStart;
const char *actualEnd;
if (!expect)
expect = "";
if (!actual)
actual = "";
expectStart = expect;
expectEnd = expect + (strlen(expect)-1);
actualStart = actual;
actualEnd = actual + (strlen(actual)-1);
if (expectName && regenerate && (virTestGetRegenerate() > 0)) {
if (virFileWriteStr(expectName, actual, 0666) < 0) {
virDispatchError(NULL);
return -1;
}
if (virTestRewrapFile(expectName) < 0) {
virDispatchError(NULL);
return -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 */
if (expectName)
fprintf(stream, "\nIn '%s':", expectName);
fprintf(stream, "\nOffset %d\nExpect [", (int) (expectStart - expect));
if ((expectEnd - expectStart + 1) &&
fwrite(expectStart, (expectEnd-expectStart+1), 1, stream) != 1)
return -1;
fprintf(stream, "]\n");
if (actualName)
fprintf(stream, "In '%s':\n", actualName);
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;
}
/**
* @param stream: output stream to write differences to
* @param expect: expected output text
* @param expectName: name designator of the expected text
* @param actual: actual output text
* @param actualName: name designator of the actual text
*
* Display expected and actual output text, trimmed to first and last
* characters at which differences occur. Displays names of the text strings if
* non-NULL. If VIR_TEST_REGENERATE_OUTPUT is used, this function will
* regenerate the expected file.
*/
int
virTestDifferenceFull(FILE *stream,
const char *expect,
const char *expectName,
const char *actual,
const char *actualName)
{
return virTestDifferenceFullInternal(stream, expect, expectName,
actual, actualName, true);
}
/**
* @param stream: output stream to write differences to
* @param expect: expected output text
* @param expectName: name designator of the expected text
* @param actual: actual output text
* @param actualName: name designator of the actual text
*
* Display expected and actual output text, trimmed to first and last
* characters at which differences occur. Displays names of the text strings if
* non-NULL. If VIR_TEST_REGENERATE_OUTPUT is used, this function will not
* regenerate the expected file.
*/
int
virTestDifferenceFullNoRegenerate(FILE *stream,
const char *expect,
const char *expectName,
const char *actual,
const char *actualName)
{
return virTestDifferenceFullInternal(stream, expect, expectName,
actual, actualName, false);
}
/**
* @param stream: output stream to write 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
virTestDifference(FILE *stream,
const char *expect,
const char *actual)
{
return virTestDifferenceFullNoRegenerate(stream,
expect, NULL,
actual, NULL);
}
/**
* @param stream: output stream to write 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 virTestDifferenceBin(FILE *stream,
const char *expect,
const char *actual,
size_t length)
{
size_t start = 0, end = length;
ssize_t i;
if (!virTestGetDebug())
return 0;
if (virTestGetDebug() < 2) {
/* Skip to first character where they differ */
for (i = 0; i < length; i++) {
if (expect[i] != actual[i]) {
start = i;
break;
}
}
/* Work backwards to last character where they differ */
for (i = (length -1); i >= 0; i--) {
if (expect[i] != actual[i]) {
end = i;
break;
}
}
}
/* Round to nearest boundary of 4, except that last word can be short */
start -= (start % 4);
end += 4 - (end % 4);
if (end >= length)
end = length - 1;
/* Show the trimmed differences */
fprintf(stream, "\nExpect [ Region %d-%d", (int)start, (int)end);
for (i = start; i < end; i++) {
if ((i % 4) == 0)
fprintf(stream, "\n ");
fprintf(stream, "0x%02x, ", ((int)expect[i])&0xff);
}
fprintf(stream, "]\n");
fprintf(stream, "Actual [ Region %d-%d", (int)start, (int)end);
for (i = start; i < end; i++) {
if ((i % 4) == 0)
fprintf(stream, "\n ");
fprintf(stream, "0x%02x, ", ((int)actual[i])&0xff);
}
fprintf(stream, "]\n");
/* Pad to line up with test name ... in virTestRun */
fprintf(stream, " ... ");
return 0;
}
/*
* @param strcontent: String input content
* @param filename: File to compare strcontent against
*
* If @strcontent is NULL, it's treated as an empty string.
*/
int
virTestCompareToFile(const char *strcontent,
const char *filename)
{
int ret = -1;
char *filecontent = NULL;
char *fixedcontent = NULL;
const char *cmpcontent = strcontent;
if (!cmpcontent)
cmpcontent = "";
if (virTestLoadFile(filename, &filecontent) < 0 && !virTestGetRegenerate())
goto failure;
if (filecontent) {
size_t filecontentLen = strlen(filecontent);
size_t cmpcontentLen = strlen(cmpcontent);
if (filecontentLen > 0 &&
filecontent[filecontentLen - 1] == '\n' &&
(cmpcontentLen == 0 || cmpcontent[cmpcontentLen - 1] != '\n')) {
if (virAsprintf(&fixedcontent, "%s\n", cmpcontent) < 0)
goto failure;
cmpcontent = fixedcontent;
}
}
if (STRNEQ_NULLABLE(cmpcontent, filecontent)) {
virTestDifferenceFull(stderr,
filecontent, filename,
cmpcontent, NULL);
goto failure;
}
ret = 0;
failure:
VIR_FREE(fixedcontent);
VIR_FREE(filecontent);
return ret;
}
/*
* @param content: Input content
* @param src: Source to compare @content against
*/
int
virTestCompareToULL(unsigned long long content,
unsigned long long src)
{
char *strcontent = NULL;
char *strsrc = NULL;
int ret = -1;
if (virAsprintf(&strcontent, "%llu", content) < 0)
goto cleanup;
if (virAsprintf(&strsrc, "%llu", src) < 0)
goto cleanup;
ret = virTestCompareToString(strcontent, strsrc);
cleanup:
VIR_FREE(strcontent);
VIR_FREE(strsrc);
return ret;
}
/*
* @param strcontent: String input content
* @param strsrc: String source to compare strcontent against
*/
int
virTestCompareToString(const char *strcontent,
const char *strsrc)
{
if (STRNEQ_NULLABLE(strcontent, strsrc)) {
virTestDifference(stderr, strcontent, strsrc);
return -1;
}
return 0;
}
static void
virTestErrorFuncQuiet(void *data ATTRIBUTE_UNUSED,
virErrorPtr err ATTRIBUTE_UNUSED)
{ }
/* register an error handler in tests when using connections */
void
virTestQuiesceLibvirtErrors(bool always)
{
if (always || !virTestGetVerbose())
virSetErrorFunc(NULL, virTestErrorFuncQuiet);
}
struct virtTestLogData {
virBuffer buf;
};
static struct virtTestLogData testLog = { VIR_BUFFER_INITIALIZER };
static void
virtTestLogOutput(virLogSourcePtr source ATTRIBUTE_UNUSED,
virLogPriority priority ATTRIBUTE_UNUSED,
const char *filename ATTRIBUTE_UNUSED,
int lineno ATTRIBUTE_UNUSED,
const char *funcname ATTRIBUTE_UNUSED,
const char *timestamp,
virLogMetadataPtr metadata ATTRIBUTE_UNUSED,
unsigned int flags,
const char *rawstr ATTRIBUTE_UNUSED,
const char *str,
void *data)
{
struct virtTestLogData *log = data;
virCheckFlags(VIR_LOG_STACK_TRACE,);
if (!testOOMActive)
virBufferAsprintf(&log->buf, "%s: %s", timestamp, str);
}
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 *
virTestLogContentAndReset(void)
{
char *ret;
if (virBufferError(&testLog.buf))
return NULL;
ret = virBufferContentAndReset(&testLog.buf);
if (!ret)
ignore_value(VIR_STRDUP(ret, ""));
return ret;
}
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();
}
unsigned int
virTestGetExpensive(void)
{
if (testExpensive == -1)
testExpensive = virTestGetFlag("VIR_TEST_EXPENSIVE");
return testExpensive;
}
unsigned int
virTestGetRegenerate(void)
{
if (testRegenerate == -1)
testRegenerate = virTestGetFlag("VIR_TEST_REGENERATE_OUTPUT");
return testRegenerate;
}
static int
virTestSetEnvPath(void)
{
int ret = -1;
const char *path = getenv("PATH");
char *new_path = NULL;
if (path) {
if (strstr(path, abs_builddir) != path &&
virAsprintf(&new_path, "%s:%s", abs_builddir, path) < 0)
goto cleanup;
} else {
if (VIR_STRDUP(new_path, abs_builddir) < 0)
goto cleanup;
}
if (new_path &&
setenv("PATH", new_path, 1) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(new_path);
return ret;
}
#define TEST_MOCK (abs_builddir "/.libs/virtestmock.so")
int virTestMain(int argc,
char **argv,
int (*func)(void),
...)
{
const char *lib;
va_list ap;
int ret;
char *testRange = NULL;
#ifdef TEST_OOM
char *oomstr;
#endif
size_t noutputs = 0;
virLogOutputPtr output = NULL;
virLogOutputPtr *outputs = NULL;
if (getenv("VIR_TEST_FILE_ACCESS"))
VIR_TEST_PRELOAD(TEST_MOCK);
va_start(ap, func);
while ((lib = va_arg(ap, const char *)))
VIR_TEST_PRELOAD(lib);
va_end(ap);
progname = last_component(argv[0]);
if (STRPREFIX(progname, "lt-"))
progname += 3;
setenv("VIR_TEST_MOCK_PROGNAME", progname, 1);
virFileActivateDirOverride(argv[0]);
if (virTestSetEnvPath() < 0)
return EXIT_AM_HARDFAIL;
if (!virFileExists(abs_srcdir))
return EXIT_AM_HARDFAIL;
if (argc > 1) {
fprintf(stderr, "Usage: %s\n", argv[0]);
fputs("effective environment variables:\n"
"VIR_TEST_VERBOSE set to show names of individual tests\n"
"VIR_TEST_DEBUG set to show information for debugging failures\n",
stderr);
return EXIT_FAILURE;
}
fprintf(stderr, "TEST: %s\n", progname);
if (virThreadInitialize() < 0 ||
virErrorInitialize() < 0)
return EXIT_FAILURE;
virLogSetFromEnv();
if (!getenv("LIBVIRT_DEBUG") && !virLogGetNbOutputs()) {
if (!(output = virLogOutputNew(virtTestLogOutput, virtTestLogClose,
&testLog, VIR_LOG_DEBUG,
VIR_LOG_TO_STDERR, NULL)) ||
VIR_APPEND_ELEMENT(outputs, noutputs, output) < 0 ||
virLogDefineOutputs(outputs, noutputs) < 0) {
virLogOutputFree(output);
virLogOutputListFree(outputs, noutputs);
return EXIT_FAILURE;
}
}
if ((testRange = getenv("VIR_TEST_RANGE")) != NULL) {
if (!(testBitmap = virBitmapParseUnlimited(testRange))) {
fprintf(stderr, "Cannot parse range %s\n", testRange);
return EXIT_FAILURE;
}
}
#ifdef TEST_OOM
if ((oomstr = getenv("VIR_TEST_OOM")) != NULL) {
char *next;
if (testDebug == -1)
testDebug = 1;
testOOM = 1;
if (oomstr[0] != '\0' &&
oomstr[1] == ':') {
if (virStrToLong_ui(oomstr + 2, &next, 10, &testOOMStart) < 0) {
fprintf(stderr, "Cannot parse range %s\n", oomstr);
return EXIT_FAILURE;
}
if (*next == '\0') {
testOOMEnd = testOOMStart;
} else {
if (*next != '-') {
fprintf(stderr, "Cannot parse range %s\n", oomstr);
return EXIT_FAILURE;
}
if (virStrToLong_ui(next+1, NULL, 10, &testOOMEnd) < 0) {
fprintf(stderr, "Cannot parse range %s\n", oomstr);
return EXIT_FAILURE;
}
}
} else {
testOOMStart = -1;
testOOMEnd = -1;
}
}
# ifdef TEST_OOM_TRACE
if ((oomstr = getenv("VIR_TEST_OOM_TRACE")) != NULL) {
if (virStrToLong_ui(oomstr, NULL, 10, &testOOMTrace) < 0) {
fprintf(stderr, "Cannot parse oom trace %s\n", oomstr);
return EXIT_FAILURE;
}
}
# else
if (getenv("VIR_TEST_OOM_TRACE")) {
fprintf(stderr, "%s", "OOM test tracing not enabled in this build\n");
return EXIT_FAILURE;
}
# endif
#else /* TEST_OOM */
if (getenv("VIR_TEST_OOM")) {
fprintf(stderr, "%s", "OOM testing not enabled in this build\n");
return EXIT_FAILURE;
}
if (getenv("VIR_TEST_OOM_TRACE")) {
fprintf(stderr, "%s", "OOM test tracing not enabled in this build\n");
return EXIT_FAILURE;
}
#endif /* TEST_OOM */
/* Find perl early because some tests override PATH */
perl = virFindFileInPath("perl");
ret = (func)();
virResetLastError();
if (!virTestGetVerbose() && ret != EXIT_AM_SKIP) {
if (testCounter == 0 || testCounter % 40)
fprintf(stderr, "%*s", 40 - (int)(testCounter % 40), "");
fprintf(stderr, " %-3zu %s\n", testCounter, ret == 0 ? "OK" : "FAIL");
}
virLogReset();
VIR_FREE(perl);
return ret;
}
/*
* @cmdset contains a list of command line args, eg
*
* "/usr/sbin/iptables --table filter --insert INPUT --in-interface virbr0 --protocol tcp --destination-port 53 --jump ACCEPT
* /usr/sbin/iptables --table filter --insert INPUT --in-interface virbr0 --protocol udp --destination-port 53 --jump ACCEPT
* /usr/sbin/iptables --table filter --insert FORWARD --in-interface virbr0 --jump REJECT
* /usr/sbin/iptables --table filter --insert FORWARD --out-interface virbr0 --jump REJECT
* /usr/sbin/iptables --table filter --insert FORWARD --in-interface virbr0 --out-interface virbr0 --jump ACCEPT"
*
* And we're munging it in-place to strip the path component
* of the command line, to produce
*
* "iptables --table filter --insert INPUT --in-interface virbr0 --protocol tcp --destination-port 53 --jump ACCEPT
* iptables --table filter --insert INPUT --in-interface virbr0 --protocol udp --destination-port 53 --jump ACCEPT
* iptables --table filter --insert FORWARD --in-interface virbr0 --jump REJECT
* iptables --table filter --insert FORWARD --out-interface virbr0 --jump REJECT
* iptables --table filter --insert FORWARD --in-interface virbr0 --out-interface virbr0 --jump ACCEPT"
*/
void virTestClearCommandPath(char *cmdset)
{
size_t offset = 0;
char *lineStart = cmdset;
char *lineEnd = strchr(lineStart, '\n');
while (lineStart) {
char *dirsep;
char *movestart;
size_t movelen;
dirsep = strchr(lineStart, ' ');
if (dirsep) {
while (dirsep > lineStart && *dirsep != '/')
dirsep--;
if (*dirsep == '/')
dirsep++;
movestart = dirsep;
} else {
movestart = lineStart;
}
movelen = lineEnd ? lineEnd - movestart : strlen(movestart);
if (movelen) {
memmove(cmdset + offset, movestart, movelen + 1);
offset += movelen + 1;
}
lineStart = lineEnd ? lineEnd + 1 : NULL;
lineEnd = lineStart ? strchr(lineStart, '\n') : NULL;
}
cmdset[offset] = '\0';
}
virCapsPtr virTestGenericCapsInit(void)
{
virCapsPtr caps;
virCapsGuestPtr guest;
if ((caps = virCapabilitiesNew(VIR_ARCH_X86_64,
false, false)) == NULL)
return NULL;
if ((guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_I686,
"/usr/bin/acme-virt", NULL,
0, NULL)) == NULL)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_TEST, NULL, NULL, 0, NULL))
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU,
NULL, NULL, 0, NULL))
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_KVM,
NULL, NULL, 0, NULL))
goto error;
if ((guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_X86_64,
"/usr/bin/acme-virt", NULL,
0, NULL)) == NULL)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_TEST, NULL, NULL, 0, NULL))
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU,
NULL, NULL, 0, NULL))
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_KVM,
NULL, NULL, 0, NULL))
goto error;
if (virTestGetDebug() > 1) {
char *caps_str;
caps_str = virCapabilitiesFormatXML(caps);
if (!caps_str)
goto error;
VIR_TEST_DEBUG("Generic driver capabilities:\n%s", caps_str);
VIR_FREE(caps_str);
}
return caps;
error:
virObjectUnref(caps);
return NULL;
}
#define MAX_CELLS 4
#define MAX_CPUS_IN_CELL 2
#define MAX_MEM_IN_CELL 2097152
/*
* Build NUMA topology with cell id starting from (0 + seq)
* for testing
*/
int
virTestCapsBuildNUMATopology(virCapsPtr caps,
int seq)
{
virCapsHostNUMACellCPUPtr cell_cpus = NULL;
int core_id, cell_id;
int id;
id = 0;
for (cell_id = 0; cell_id < MAX_CELLS; cell_id++) {
if (VIR_ALLOC_N(cell_cpus, MAX_CPUS_IN_CELL) < 0)
goto error;
for (core_id = 0; core_id < MAX_CPUS_IN_CELL; core_id++) {
cell_cpus[core_id].id = id + core_id;
cell_cpus[core_id].socket_id = cell_id + seq;
cell_cpus[core_id].core_id = id + core_id;
if (!(cell_cpus[core_id].siblings =
virBitmapNew(MAX_CPUS_IN_CELL)))
goto error;
ignore_value(virBitmapSetBit(cell_cpus[core_id].siblings, id));
}
id++;
if (virCapabilitiesAddHostNUMACell(caps, cell_id + seq,
MAX_MEM_IN_CELL,
MAX_CPUS_IN_CELL, cell_cpus,
VIR_ARCH_NONE, NULL,
VIR_ARCH_NONE, NULL) < 0)
goto error;
cell_cpus = NULL;
}
return 0;
error:
virCapabilitiesClearHostNUMACellCPUTopology(cell_cpus, MAX_CPUS_IN_CELL);
VIR_FREE(cell_cpus);
return -1;
}
static virDomainDefParserConfig virTestGenericDomainDefParserConfig = {
.features = VIR_DOMAIN_DEF_FEATURE_INDIVIDUAL_VCPUS,
};
virDomainXMLOptionPtr virTestGenericDomainXMLConfInit(void)
{
return virDomainXMLOptionNew(&virTestGenericDomainDefParserConfig,
NULL, NULL, NULL, NULL);
}
int
testCompareDomXML2XMLFiles(virCapsPtr caps, virDomainXMLOptionPtr xmlopt,
const char *infile, const char *outfile, bool live,
unsigned int parseFlags,
testCompareDomXML2XMLResult expectResult)
{
char *actual = NULL;
int ret = -1;
testCompareDomXML2XMLResult result;
virDomainDefPtr def = NULL;
unsigned int parse_flags = live ? 0 : VIR_DOMAIN_DEF_PARSE_INACTIVE;
unsigned int format_flags = VIR_DOMAIN_DEF_FORMAT_SECURE;
parse_flags |= parseFlags;
if (!virFileExists(infile)) {
VIR_TEST_DEBUG("Test input file '%s' is missing", infile);
return -1;
}
if (!live)
format_flags |= VIR_DOMAIN_DEF_FORMAT_INACTIVE;
if (!(def = virDomainDefParseFile(infile, caps, xmlopt, NULL, parse_flags))) {
result = TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_PARSE;
goto out;
}
if (!virDomainDefCheckABIStability(def, def, xmlopt)) {
VIR_TEST_DEBUG("ABI stability check failed on %s", infile);
result = TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_STABILITY;
goto out;
}
if (!(actual = virDomainDefFormat(def, caps, format_flags))) {
result = TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_FORMAT;
goto out;
}
if (virTestCompareToFile(actual, outfile) < 0) {
result = TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_COMPARE;
goto out;
}
result = TEST_COMPARE_DOM_XML2XML_RESULT_SUCCESS;
out:
if (result == expectResult) {
ret = 0;
if (expectResult != TEST_COMPARE_DOM_XML2XML_RESULT_SUCCESS) {
VIR_TEST_DEBUG("Got expected failure code=%d msg=%s",
result, virGetLastErrorMessage());
}
} else {
ret = -1;
VIR_TEST_DEBUG("Expected result code=%d but received code=%d",
expectResult, result);
}
VIR_FREE(actual);
virDomainDefFree(def);
return ret;
}
static int virtTestCounter;
static char virtTestCounterStr[128];
static char *virtTestCounterPrefixEndOffset;
/**
* virTestCounterReset:
* @prefix: name of the test group
*
* Resets the counter and sets up the test group name to use with
* virTestCounterNext(). This function is not thread safe.
*
* Note: The buffer for the assembled message is 128 bytes long. Longer test
* case names (including the number index) will be silently truncated.
*/
void
virTestCounterReset(const char *prefix)
{
virtTestCounter = 0;
ignore_value(virStrcpyStatic(virtTestCounterStr, prefix));
virtTestCounterPrefixEndOffset = strchrnul(virtTestCounterStr, '\0');
}
/**
* virTestCounterNext:
*
* This function is designed to ease test creation and reordering by adding
* a way to do automagic test case numbering.
*
* Returns string consisting of test name prefix configured via
* virTestCounterReset() and a number that increments in every call of this
* function. This function is not thread safe.
*
* Note: The buffer for the assembled message is 128 bytes long. Longer test
* case names (including the number index) will be silently truncated.
*/
const char
*virTestCounterNext(void)
{
size_t len = ARRAY_CARDINALITY(virtTestCounterStr);
/* calculate length of the rest of the string */
len -= (virtTestCounterPrefixEndOffset - virtTestCounterStr);
snprintf(virtTestCounterPrefixEndOffset, len, "%d", ++virtTestCounter);
return virtTestCounterStr;
}
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