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Add unit test for virCgroupGetBlkioIo*Serviced

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This commit is contained in:
Thorsten Behrens 2014-02-14 18:49:05 +01:00 committed by Michal Privoznik
parent 0bd2ccdecc
commit 9ce8a7c5c5
3 changed files with 228 additions and 2 deletions
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3
tests/testutilslxc.h
View File

@ -1,4 +1,7 @@
#include "capabilities.h"
#define FAKEDEVDIR0 "/fakedevdir0/bla/fasl"
#define FAKEDEVDIR1 "/fakedevdir1/bla/fasl"
virCapsPtr testLXCCapsInit(void);

98
tests/vircgroupmock.c
View File

@ -30,10 +30,13 @@
# include <fcntl.h>
# include <sys/stat.h>
# include <stdarg.h>
# include "testutilslxc.h"
static int (*realopen)(const char *path, int flags, ...);
static FILE *(*realfopen)(const char *path, const char *mode);
static int (*realaccess)(const char *path, int mode);
static int (*realstat)(const char *path, struct stat *sb);
static int (*real__xstat)(int ver, const char *path, struct stat *sb);
static int (*reallstat)(const char *path, struct stat *sb);
static int (*real__lxstat)(int ver, const char *path, struct stat *sb);
static int (*realmkdir)(const char *path, mode_t mode);
@ -43,6 +46,8 @@ static int (*realmkdir)(const char *path, mode_t mode);
* vircgroupmock.c:462:22: error: static variable 'fakesysfsdir' is used in an inline function with external linkage [-Werror,-Wstatic-in-inline]
*/
char *fakesysfsdir;
const char *fakedevicedir0 = FAKEDEVDIR0;
const char *fakedevicedir1 = FAKEDEVDIR1;
# define SYSFS_PREFIX "/not/really/sys/fs/cgroup/"
@ -332,13 +337,23 @@ static int make_controller(const char *path, mode_t mode)
"8:0 Write 411440480256\n"
"8:0 Sync 248486822912\n"
"8:0 Async 222495764480\n"
"8:0 Total 470982587392\n");
"8:0 Total 470982587392\n"
"9:0 Read 59542107137\n"
"9:0 Write 411440480257\n"
"9:0 Sync 248486822912\n"
"9:0 Async 222495764480\n"
"9:0 Total 470982587392\n");
MAKE_FILE("blkio.throttle.io_serviced",
"8:0 Read 4832583\n"
"8:0 Write 36641903\n"
"8:0 Sync 30723171\n"
"8:0 Async 10751315\n"
"8:0 Total 41474486\n");
"8:0 Total 41474486\n"
"9:0 Read 4832584\n"
"9:0 Write 36641904\n"
"9:0 Sync 30723171\n"
"9:0 Async 10751315\n"
"9:0 Total 41474486\n");
MAKE_FILE("blkio.throttle.read_bps_device", "");
MAKE_FILE("blkio.throttle.read_iops_device", "");
MAKE_FILE("blkio.throttle.write_bps_device", "");
@ -382,6 +397,7 @@ static void init_syms(void)
LOAD_SYM(fopen);
LOAD_SYM(access);
LOAD_SYM_ALT(lstat, __lxstat);
LOAD_SYM_ALT(stat, __xstat);
LOAD_SYM(mkdir);
LOAD_SYM(open);
}
@ -529,6 +545,14 @@ int __lxstat(int ver, const char *path, struct stat *sb)
}
ret = real__lxstat(ver, newpath, sb);
free(newpath);
} else if (STRPREFIX(path, fakedevicedir0)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(8, 0);
return 0;
} else if (STRPREFIX(path, fakedevicedir1)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(9, 0);
return 0;
} else {
ret = real__lxstat(ver, path, sb);
}
@ -552,12 +576,82 @@ int lstat(const char *path, struct stat *sb)
}
ret = reallstat(newpath, sb);
free(newpath);
} else if (STRPREFIX(path, fakedevicedir0)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(8, 0);
return 0;
} else if (STRPREFIX(path, fakedevicedir1)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(9, 0);
return 0;
} else {
ret = reallstat(path, sb);
}
return ret;
}
int __xstat(int ver, const char *path, struct stat *sb)
{
int ret;
init_syms();
if (STRPREFIX(path, SYSFS_PREFIX)) {
init_sysfs();
char *newpath;
if (asprintf(&newpath, "%s/%s",
fakesysfsdir,
path + strlen(SYSFS_PREFIX)) < 0) {
errno = ENOMEM;
return -1;
}
ret = real__xstat(ver, newpath, sb);
free(newpath);
} else if (STRPREFIX(path, fakedevicedir0)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(8, 0);
return 0;
} else if (STRPREFIX(path, fakedevicedir1)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(9, 0);
return 0;
} else {
ret = real__xstat(ver, path, sb);
}
return ret;
}
int stat(const char *path, struct stat *sb)
{
int ret;
init_syms();
if (STRPREFIX(path, SYSFS_PREFIX)) {
init_sysfs();
char *newpath;
if (asprintf(&newpath, "%s/%s",
fakesysfsdir,
path + strlen(SYSFS_PREFIX)) < 0) {
errno = ENOMEM;
return -1;
}
ret = realstat(newpath, sb);
free(newpath);
} else if (STRPREFIX(path, fakedevicedir0)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(8, 0);
return 0;
} else if (STRPREFIX(path, fakedevicedir1)) {
sb->st_mode = S_IFBLK;
sb->st_rdev = makedev(9, 0);
return 0;
} else {
ret = realstat(path, sb);
}
return ret;
}
int mkdir(const char *path, mode_t mode)
{
int ret;

129
tests/vircgrouptest.c
View File

@ -32,6 +32,7 @@
# include "virerror.h"
# include "virlog.h"
# include "virfile.h"
# include "testutilslxc.h"
# define VIR_FROM_THIS VIR_FROM_NONE
@ -529,6 +530,128 @@ static int testCgroupAvailable(const void *args)
return 0;
}
static int testCgroupGetBlkioIoServiced(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
size_t i;
int rv, ret = -1;
const long long expected_values[] = {
119084214273,
822880960513,
9665167,
73283807
};
const char* names[] = {
"bytes read",
"bytes written",
"requests read",
"requests written"
};
long long values[ARRAY_CARDINALITY(expected_values)];
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_BLKIO),
&cgroup)) < 0) {
fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupGetBlkioIoServiced(cgroup,
values, &values[1],
&values[2], &values[3])) < 0) {
fprintf(stderr, "Could not retrieve BlkioIoServiced for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < ARRAY_CARDINALITY(expected_values); i++) {
if (expected_values[i] != values[i]) {
fprintf(stderr,
"Wrong value for %s from virCgroupBlkioIoServiced (expected %lld)\n",
names[i], expected_values[i]);
goto cleanup;
}
}
ret = 0;
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupGetBlkioIoDeviceServiced(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
size_t i;
int rv, ret = -1;
const long long expected_values0[] = {
59542107136,
411440480256,
4832583,
36641903
};
const long long expected_values1[] = {
59542107137,
411440480257,
4832584,
36641904
};
const char* names[] = {
"bytes read",
"bytes written",
"requests read",
"requests written"
};
long long values[ARRAY_CARDINALITY(expected_values0)];
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_BLKIO),
&cgroup)) < 0) {
fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupGetBlkioIoDeviceServiced(cgroup,
FAKEDEVDIR0,
values, &values[1],
&values[2], &values[3])) < 0) {
fprintf(stderr, "Could not retrieve BlkioIoDeviceServiced for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < ARRAY_CARDINALITY(expected_values0); i++) {
if (expected_values0[i] != values[i]) {
fprintf(stderr,
"Wrong value for %s from virCgroupGetBlkioIoDeviceServiced (expected %lld)\n",
names[i], expected_values0[i]);
goto cleanup;
}
}
if ((rv = virCgroupGetBlkioIoDeviceServiced(cgroup,
FAKEDEVDIR1,
values, &values[1],
&values[2], &values[3])) < 0) {
fprintf(stderr, "Could not retrieve BlkioIoDeviceServiced for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < ARRAY_CARDINALITY(expected_values1); i++) {
if (expected_values1[i] != values[i]) {
fprintf(stderr,
"Wrong value for %s from virCgroupGetBlkioIoDeviceServiced (expected %lld)\n",
names[i], expected_values1[i]);
goto cleanup;
}
}
ret = 0;
cleanup:
virCgroupFree(&cgroup);
return ret;
}
# define FAKESYSFSDIRTEMPLATE abs_builddir "/fakesysfsdir-XXXXXX"
@ -571,6 +694,12 @@ mymain(void)
if (virtTestRun("Cgroup available", testCgroupAvailable, (void*)0x1) < 0)
ret = -1;
if (virtTestRun("virCgroupGetBlkioIoServiced works", testCgroupGetBlkioIoServiced, NULL) < 0)
ret = -1;
if (virtTestRun("virCgroupGetBlkioIoDeviceServiced works", testCgroupGetBlkioIoDeviceServiced, NULL) < 0)
ret = -1;
setenv("VIR_CGROUP_MOCK_MODE", "allinone", 1);
if (virtTestRun("New cgroup for self (allinone)", testCgroupNewForSelfAllInOne, NULL) < 0)
ret = -1;