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libvirt/tests/testutils.c
Andrea Bolognani 4fe4ffdbdf tests: Create full host NUMA topology in more cases 
vircapstest has code to add a full host NUMA topology, that
is, one that includes all information about nodes and CPUs
including IDs; testQemuCapsInit(), which is used to create a
mock virCapsPtr for QEMU tests, however, just fakes it by
setting nnumaCell_max to some number.

While the latter approach has served us well so far, we're
going to need all the information to be filled in soon. In
order to do that, we can just move the existing code from
vircapstest to testutils and, with some renaming and
trivial tweaking, use it as-is.

Interestingly, the NUMA topology generated by the function
is rigged up so that the NUMA nodes aren't (necessarily)
numbered starting from 0, which is a nice way to spot
mistaken assumptions in our codebase.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-04-19 17:57:52 +02:00

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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/>.
*
* Karel Zak <kzak@redhat.com>
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.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 <string.h>
#include <fcntl.h>
#include <limits.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);
virErrorPtr err = virGetLastError();
if (err) {
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 {
virErrorPtr lerr = virGetLastError();
if (!lerr) {
# 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 ((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 (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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