libvirt/tests/nodeinfotest.c
Eric Blake bb11c55312 tests: avoid spurious failure of nodeinfotest
When running 'make check' under a multi-cpu Dom0 xen machine,
nodeinfotest had a spurious failure it was reading from
/sys/devices/system/cpu, but xen has no notion of topology.  The test
was intended to be isolated from reading any real system files; the
regression was introduced in Mar 2010 with commit aa2f6f96dd.

Fix things by allowing an early exit for the testsuite.

* src/nodeinfo.c (linuxNodeInfoCPUPopulate): Add parameter.
(nodeGetInfo): Adjust caller.
* tests/nodeinfotest.c (linuxTestCompareFiles): Likewise.
2010-12-20 10:31:40 -07:00

130 lines
3.1 KiB
C

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "testutils.h"
#include "internal.h"
#include "nodeinfo.h"
#include "util.h"
#include "files.h"
#ifndef __linux__
static int
mymain(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
{
exit (EXIT_AM_SKIP);
}
#else
static char *progname;
static char *abs_srcdir;
# define MAX_FILE 4096
extern int linuxNodeInfoCPUPopulate(FILE *cpuinfo, virNodeInfoPtr nodeinfo,
bool need_hyperthreads);
static int linuxTestCompareFiles(const char *cpuinfofile, const char *outputfile) {
char actualData[MAX_FILE];
char expectData[MAX_FILE];
char *expect = &expectData[0];
virNodeInfo nodeinfo;
FILE *cpuinfo;
if (virtTestLoadFile(outputfile, &expect, MAX_FILE) < 0)
return -1;
cpuinfo = fopen(cpuinfofile, "r");
if (!cpuinfo)
return -1;
memset(&nodeinfo, 0, sizeof(nodeinfo));
if (linuxNodeInfoCPUPopulate(cpuinfo, &nodeinfo, false) < 0) {
if (virTestGetDebug()) {
virErrorPtr error = virSaveLastError();
if (error && error->code != VIR_ERR_OK)
fprintf(stderr, "\n%s\n", error->message);
virFreeError(error);
}
VIR_FORCE_FCLOSE(cpuinfo);
return -1;
}
VIR_FORCE_FCLOSE(cpuinfo);
/* 'nodes' is filled using libnuma.so from current machine
* topology, which makes it unsuitable for the test suite
* so blank it to a predictable value */
nodeinfo.nodes = 1;
snprintf(actualData, MAX_FILE,
"CPUs: %u, MHz: %u, Nodes: %u, Cores: %u\n",
nodeinfo.cpus, nodeinfo.mhz, nodeinfo.nodes, nodeinfo.cores);
if (STRNEQ(actualData, expectData)) {
if (getenv("DEBUG_TESTS")) {
printf("Expect %d '%s'\n", (int)strlen(expectData), expectData);
printf("Actual %d '%s'\n", (int)strlen(actualData), actualData);
}
return -1;
}
return 0;
}
static int linuxTestNodeInfo(const void *data) {
char cpuinfo[PATH_MAX];
char output[PATH_MAX];
snprintf(cpuinfo, PATH_MAX, "%s/nodeinfodata/linux-%s.cpuinfo",
abs_srcdir, (const char*)data);
snprintf(output, PATH_MAX, "%s/nodeinfodata/linux-%s.txt",
abs_srcdir, (const char*)data);
return linuxTestCompareFiles(cpuinfo, output);
}
static int
mymain(int argc, char **argv)
{
int ret = 0;
int i;
const char *nodeData[] = {
"nodeinfo-1",
"nodeinfo-2",
"nodeinfo-3",
"nodeinfo-4",
"nodeinfo-5",
"nodeinfo-6",
};
char cwd[PATH_MAX];
abs_srcdir = getenv("abs_srcdir");
if (!abs_srcdir)
abs_srcdir = getcwd(cwd, sizeof(cwd));
progname = argv[0];
if (argc > 1) {
fprintf(stderr, "Usage: %s\n", progname);
return(EXIT_FAILURE);
}
if (virInitialize() < 0)
return EXIT_FAILURE;
for (i = 0 ; i < ARRAY_CARDINALITY(nodeData); i++)
if (virtTestRun(nodeData[i], 1, linuxTestNodeInfo, nodeData[i]) != 0)
ret = -1;
return(ret==0 ? EXIT_SUCCESS : EXIT_FAILURE);
}
#endif /* __linux__ */
VIRT_TEST_MAIN(mymain)