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libxl: Add a test suite for libxl_domain_config generator

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The libxl library allows a libxl_domain_config object to be serialized
from/to a JSON string. Use this to allow testing of the XML to
libxl_domain_config conversion process. Test XML is converted to
libxl_domain_config, which is then serialized to json. A json template
corresponding to the test XML is converted to a libxl_domain_config
object using libxl_domain_config_from_json(), and then serialized
back to json using libxl_domain_config_to_json(). The two json
docs are then compared.

Using libxl to convert the json template to a libxl_domain_config
object and then back to json provides a simple way to account for
any changes or additions to the json representation across Xen
releases.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
[update to v3.5.0-rc1, improve error reporting, use /bin/true emulator]
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
This commit is contained in:
Jim Fehlig 2017-08-01 15:17:51 +02:00
parent b7dba9336f
commit d8e8b63d30
10 changed files with 704 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
m4/virt-driver-libxl.m4
View File

@ -80,6 +80,10 @@ AC_DEFUN([LIBVIRT_DRIVER_CHECK_LIBXL], [
LIBXL_LIBS="$LIBXL_LIBS -lxenctrl"
])
dnl Check if libxl_domain_config_from_json is available for domXML to
dnl libxl_domain_config tests
LIBS="$LIBS -lxenlight -lxenctrl"
AC_CHECK_FUNCS([libxl_domain_config_from_json])
CFLAGS="$old_CFLAGS"
LIBS="$old_LIBS"
fi

18
tests/Makefile.am
View File

@ -99,6 +99,7 @@ EXTRA_DIST = \
genericxml2xmlindata \
genericxml2xmloutdata \
interfaceschemadata \
libxlxml2domconfigdata \
lxcconf2xmldata \
lxcxml2xmldata \
lxcxml2xmloutdata \
@ -271,7 +272,8 @@ test_programs += xml2sexprtest sexpr2xmltest \
endif WITH_XEN
if WITH_LIBXL
test_programs += xlconfigtest
test_programs += xlconfigtest libxlxml2domconfigtest
test_libraries += virmocklibxl.la
endif WITH_LIBXL
if WITH_QEMU
@ -528,8 +530,20 @@ xlconfigtest_SOURCES = \
xlconfigtest.c testutilsxen.c testutilsxen.h \
testutils.c testutils.h
xlconfigtest_LDADD =$(libxl_LDADDS)
libxlxml2domconfigtest_SOURCES = \
libxlxml2domconfigtest.c testutilsxen.c testutilsxen.h \
testutils.c testutils.h
libxlxml2domconfigtest_LDADD = $(libxl_LDADDS) $(LIBXML_LIBS)
virmocklibxl_la_SOURCES = \
virmocklibxl.c
virmocklibxl_la_CFLAGS = $(AM_CFLAGS)
virmocklibxl_la_LDFLAGS = $(MOCKLIBS_LDFLAGS)
virmocklibxl_la_LIBADD = $(MOCKLIBS_LIBS)
else ! WITH_LIBXL
EXTRA_DIST += xlconfigtest.c
EXTRA_DIST += xlconfigtest.c libxlxml2domconfigtest.c
endif ! WITH_LIBXL
QEMUMONITORTESTUTILS_SOURCES = \

89
tests/libxlxml2domconfigdata/basic-hvm.json Normal file
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@ -0,0 +1,89 @@
{
"c_info": {
"type": "hvm",
"name": "test-hvm",
"uuid": "2147d599-9cc6-c0dc-92ab-4064b5446e9b"
},
"b_info": {
"max_vcpus": 4,
"avail_vcpus": [
0,
1,
2,
3
],
"max_memkb": 1048576,
"target_memkb": 1048576,
"video_memkb": 8192,
"shadow_memkb": 12288,
"device_model_version": "qemu_xen",
"device_model": "/bin/true",
"sched_params": {
"weight": 1000
},
"type.hvm": {
"pae": "True",
"apic": "True",
"acpi": "True",
"vga": {
"kind": "cirrus"
},
"vnc": {
"enable": "True",
"listen": "0.0.0.0",
"findunused": "False"
},
"sdl": {
"enable": "False"
},
"spice": {
},
"boot": "c",
"rdm": {
}
},
"arch_arm": {
}
},
"disks": [
{
"pdev_path": "/var/lib/xen/images/test-hvm.img",
"vdev": "hda",
"backend": "qdisk",
"format": "raw",
"removable": 1,
"readwrite": 1
}
],
"nics": [
{
"devid": 0,
"mac": "00:16:3e:66:12:b4",
"bridge": "br0",
"script": "/etc/xen/scripts/vif-bridge",
"nictype": "vif_ioemu"
}
],
"vfbs": [
{
"devid": -1,
"vnc": {
"enable": "True",
"listen": "0.0.0.0",
"findunused": "False"
},
"sdl": {
"enable": "False"
}
}
],
"vkbs": [
{
"devid": -1
}
],
"on_reboot": "restart"
}

36
tests/libxlxml2domconfigdata/basic-hvm.xml Normal file
View File

@ -0,0 +1,36 @@
<domain type='xen'>
<name>test-hvm</name>
<description>None</description>
<uuid>2147d599-9cc6-c0dc-92ab-4064b5446e9b</uuid>
<memory>1048576</memory>
<currentMemory>1048576</currentMemory>
<vcpu>4</vcpu>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<clock sync='utc'/>
<os>
<type>hvm</type>
<loader>/usr/lib/xen/boot/hvmloader</loader>
<boot dev='hd'/>
</os>
<features>
<apic/>
<acpi/>
<pae/>
</features>
<devices>
<emulator>/bin/true</emulator>
<disk type='file' device='disk'>
<driver name='qemu'/>
<source file='/var/lib/xen/images/test-hvm.img'/>
<target dev='hda'/>
</disk>
<interface type='bridge'>
<source bridge='br0'/>
<mac address='00:16:3e:66:12:b4'/>
<script path='/etc/xen/scripts/vif-bridge'/>
</interface>
<graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'/>
</devices>
</domain>

65
tests/libxlxml2domconfigdata/basic-pv.json Normal file
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@ -0,0 +1,65 @@
{
"c_info": {
"type": "pv",
"name": "test-pv",
"uuid": "039e9ee6-4a84-3055-4c81-8ba426ae2656"
},
"b_info": {
"max_vcpus": 4,
"avail_vcpus": [
0,
1,
2,
3
],
"max_memkb": 524288,
"target_memkb": 524288,
"sched_params": {
"weight": 1000
},
"type.pv": {
"bootloader": "pygrub"
},
"arch_arm": {
}
},
"disks": [
{
"pdev_path": "/var/lib/xen/images/test-pv.img",
"vdev": "xvda",
"backend": "qdisk",
"format": "raw",
"removable": 1,
"readwrite": 1
}
],
"nics": [
{
"devid": 0,
"mac": "00:16:3e:3e:86:60",
"bridge": "br0",
"script": "/etc/xen/scripts/vif-bridge",
"nictype": "vif"
}
],
"vfbs": [
{
"devid": -1,
"vnc": {
"enable": "True",
"listen": "0.0.0.0",
"findunused": "False"
},
"sdl": {
"enable": "False"
}
}
],
"vkbs": [
{
"devid": -1
}
],
"on_reboot": "restart"
}

28
tests/libxlxml2domconfigdata/basic-pv.xml Normal file
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@ -0,0 +1,28 @@
<domain type='xen'>
<name>test-pv</name>
<uuid>039e9ee6-4a84-3055-4c81-8ba426ae2656</uuid>
<memory>524288</memory>
<currentMemory>524288</currentMemory>
<vcpu>4</vcpu>
<bootloader>pygrub</bootloader>
<os>
<type arch='x86_64' machine='xenpv'>linux</type>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<disk type='file' device='disk'>
<driver name='qemu'/>
<source file='/var/lib/xen/images/test-pv.img'/>
<target dev='xvda'/>
</disk>
<interface type='bridge'>
<source bridge='br0'/>
<mac address='00:16:3e:3e:86:60'/>
<script path='/etc/xen/scripts/vif-bridge'/>
</interface>
<graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'/>
</devices>
</domain>

111
tests/libxlxml2domconfigdata/moredevs-hvm.json Normal file
View File

@ -0,0 +1,111 @@
{
"c_info": {
"type": "hvm",
"hap": "True",
"name": "test-hvm",
"uuid": "2147d599-9cc6-c0dc-92ab-4064b5446e9b"
},
"b_info": {
"max_vcpus": 4,
"avail_vcpus": [
0,
1,
2,
3
],
"tsc_mode": "native",
"max_memkb": 1048576,
"target_memkb": 1048576,
"video_memkb": 8192,
"shadow_memkb": 12288,
"device_model_version": "qemu_xen",
"device_model": "/bin/true",
"sched_params": {
"weight": 1000
},
"type.hvm": {
"pae": "True",
"apic": "True",
"acpi": "True",
"hpet": "True",
"vga": {
"kind": "cirrus"
},
"vnc": {
"enable": "True",
"findunused": "False"
},
"sdl": {
"enable": "False"
},
"spice": {
},
"serial": "pty",
"boot": "c",
"usbdevice_list": [
"mouse",
"tablet"
],
"rdm": {
}
},
"arch_arm": {
}
},
"disks": [
{
"pdev_path": "/var/lib/xen/images/test-hvm.img",
"vdev": "hda",
"backend": "qdisk",
"format": "raw",
"removable": 1,
"readwrite": 1
},
{
"pdev_path": "/root/boot.iso",
"vdev": "hdb",
"backend": "qdisk",
"format": "raw",
"removable": 1,
"is_cdrom": 1
}
],
"nics": [
{
"devid": 0,
"model": "netfront",
"mac": "00:16:3e:7a:35:ce",
"bridge": "br0",
"script": "/etc/xen/scripts/vif-bridge",
"nictype": "vif"
}
],
"pcidevs": [
{
"dev": 16,
"bus": 10,
"rdm_policy": "invalid"
}
],
"vfbs": [
{
"devid": -1,
"vnc": {
"enable": "True",
"findunused": "False"
},
"sdl": {
"enable": "False"
}
}
],
"vkbs": [
{
"devid": -1
}
],
"on_reboot": "restart"
}

63
tests/libxlxml2domconfigdata/moredevs-hvm.xml Normal file
View File

@ -0,0 +1,63 @@
<domain type='xen'>
<name>test-hvm</name>
<description>None</description>
<uuid>2147d599-9cc6-c0dc-92ab-4064b5446e9b</uuid>
<memory>1048576</memory>
<currentMemory>1048576</currentMemory>
<vcpu>4</vcpu>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<clock offset='variable' adjustment='0' basis='utc'>
<timer name='tsc' present='yes' mode='native'/>
<timer name='hpet' present='yes'/>
</clock>
<os>
<type>hvm</type>
<loader>/usr/lib/xen/boot/hvmloader</loader>
<boot dev='hd'/>
</os>
<features>
<apic/>
<acpi/>
<pae/>
<hap/>
</features>
<devices>
<emulator>/bin/true</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='default'/>
<source file='/var/lib/xen/images/test-hvm.img'/>
<target dev='hda'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw' cache='default'/>
<source file='/root/boot.iso'/>
<target dev='hdb'/>
</disk>
<interface type='bridge'>
<source bridge='br0'/>
<mac address='00:16:3e:7a:35:ce'/>
<script path='/etc/xen/scripts/vif-bridge'/>
<model type='netfront'/>
</interface>
<interface type='hostdev' managed='yes'>
<mac address='00:16:3e:2e:e7:fc'/>
<driver name='xen'/>
<source>
<address type='pci' domain='0x0000' bus='0x0a' slot='0x10' function='0x0'/>
</source>
</interface>
<graphics type='vnc'/>
<video>
<model type='cirrus' vram='8192' heads='1' primary='yes'/>
</video>
<console type='pty'>
<target port='0'/>
</console>
<input type='mouse' bus='usb'/>
<input type='tablet' bus='usb'/>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
</devices>
</domain>

205
tests/libxlxml2domconfigtest.c Normal file
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@ -0,0 +1,205 @@
/*
* libxlxml2domconfigtest.c: test conversion of domXML to
* libxl_domain_config structure.
*
* Copyright (C) 2017 SUSE LINUX Products GmbH, Nuernberg, Germany.
*
* 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/>.
*
* Author: Jim Fehlig <jfehlig@suse.com>
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include "testutils.h"
#if defined(WITH_LIBXL) && defined(WITH_YAJL) && defined(HAVE_LIBXL_DOMAIN_CONFIG_FROM_JSON)
# include "internal.h"
# include "viralloc.h"
# include "libxl/libxl_conf.h"
# include "datatypes.h"
# include "virstring.h"
# include "virmock.h"
# include "virjson.h"
# include "testutilsxen.h"
# define VIR_FROM_THIS VIR_FROM_LIBXL
static const char *abs_top_srcdir;
static virCapsPtr caps;
static int
testCompareXMLToDomConfig(const char *xmlfile,
const char *jsonfile)
{
int ret = -1;
libxl_domain_config actualconfig;
libxl_domain_config expectconfig;
xentoollog_logger *log = NULL;
libxl_ctx *ctx = NULL;
virPortAllocatorPtr gports = NULL;
virDomainXMLOptionPtr xmlopt = NULL;
virDomainDefPtr vmdef = NULL;
char *actualjson = NULL;
char *tempjson = NULL;
char *expectjson = NULL;
libxl_domain_config_init(&actualconfig);
libxl_domain_config_init(&expectconfig);
if (!(log = (xentoollog_logger *)xtl_createlogger_stdiostream(stderr, XTL_DEBUG, 0)))
goto cleanup;
if (libxl_ctx_alloc(&ctx, LIBXL_VERSION, 0, log) < 0)
goto cleanup;
if (!(gports = virPortAllocatorNew("vnc", 5900, 6000,
VIR_PORT_ALLOCATOR_SKIP_BIND_CHECK)))
goto cleanup;
if (!(xmlopt = libxlCreateXMLConf()))
goto cleanup;
if (!(vmdef = virDomainDefParseFile(xmlfile, caps, xmlopt,
NULL, VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
if (libxlBuildDomainConfig(gports, vmdef, NULL, ctx, caps, &actualconfig) < 0)
goto cleanup;
if (!(actualjson = libxl_domain_config_to_json(ctx, &actualconfig))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"Failed to retrieve JSON doc for libxl_domain_config");
goto cleanup;
}
virTestLoadFile(jsonfile, &tempjson);
if (libxl_domain_config_from_json(ctx, &expectconfig, tempjson) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"Failed to create libxl_domain_config from JSON doc");
goto cleanup;
}
if (!(expectjson = libxl_domain_config_to_json(ctx, &expectconfig))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"Failed to retrieve JSON doc for libxl_domain_config");
goto cleanup;
}
if (virTestCompareToString(expectjson, actualjson) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(expectjson);
VIR_FREE(actualjson);
VIR_FREE(tempjson);
virDomainDefFree(vmdef);
virObjectUnref(gports);
virObjectUnref(xmlopt);
libxl_ctx_free(ctx);
libxl_domain_config_dispose(&actualconfig);
libxl_domain_config_dispose(&expectconfig);
xtl_logger_destroy(log);
return ret;
}
struct testInfo {
const char *name;
};
static int
testCompareXMLToDomConfigHelper(const void *data)
{
int ret = -1;
const struct testInfo *info = data;
char *xmlfile = NULL;
char *jsonfile = NULL;
if (virAsprintf(&xmlfile, "%s/libxlxml2domconfigdata/%s.xml",
abs_srcdir, info->name) < 0 ||
virAsprintf(&jsonfile, "%s/libxlxml2domconfigdata/%s.json",
abs_srcdir, info->name) < 0)
goto cleanup;
ret = testCompareXMLToDomConfig(xmlfile, jsonfile);
cleanup:
VIR_FREE(xmlfile);
VIR_FREE(jsonfile);
return ret;
}
static int
mymain(void)
{
int ret = 0;
abs_top_srcdir = getenv("abs_top_srcdir");
if (!abs_top_srcdir)
abs_top_srcdir = abs_srcdir "/..";
/* Set the timezone because we are mocking the time() function.
* If we don't do that, then localtime() may return unpredictable
* results. In order to detect things that just work by a blind
* chance, we need to set an virtual timezone that no libvirt
* developer resides in. */
if (setenv("TZ", "VIR00:30", 1) < 0) {
perror("setenv");
return EXIT_FAILURE;
}
if ((caps = testXLInitCaps()) == NULL)
return EXIT_FAILURE;
# define DO_TEST(name) \
do { \
static struct testInfo info = { \
name, \
}; \
if (virTestRun("LibXL XML-2-JSON " name, \
testCompareXMLToDomConfigHelper, &info) < 0) \
ret = -1; \
} while (0)
DO_TEST("basic-pv");
DO_TEST("basic-hvm");
DO_TEST("moredevs-hvm");
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/virmocklibxl.so")
#else
int main(void)
{
return EXIT_AM_SKIP;
}
#endif /* WITH_LIBXL && WITH_YAJL && HAVE_LIBXL_DOMAIN_CONFIG_FROM_JSON */

87
tests/virmocklibxl.c Normal file
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@ -0,0 +1,87 @@
/*
* virmocklibxl.c: mocking of xenstore/libxs for libxl
*
* Copyright (C) 2014 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/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#if defined(WITH_LIBXL) && defined(WITH_YAJL)
# include "virmock.h"
# include <sys/stat.h>
# include <unistd.h>
# include <libxl.h>
# include <xenstore.h>
# include <xenctrl.h>
VIR_MOCK_IMPL_RET_VOID(xs_daemon_open,
struct xs_handle *)
{
VIR_MOCK_REAL_INIT(xs_daemon_open);
return (void*)0x1;
}
VIR_MOCK_IMPL_RET_ARGS(xc_interface_open,
xc_interface *,
xentoollog_logger *, logger,
xentoollog_logger *, dombuild_logger,
unsigned, open_flags)
{
VIR_MOCK_REAL_INIT(xc_interface_open);
return (void*)0x1;
}
VIR_MOCK_STUB_RET_ARGS(xc_interface_close,
int, 0,
xc_interface *, handle)
VIR_MOCK_STUB_VOID_ARGS(xs_daemon_close,
struct xs_handle *, handle)
VIR_MOCK_IMPL_RET_ARGS(__xstat, int,
int, ver,
const char *, path,
struct stat *, sb)
{
VIR_MOCK_REAL_INIT(__xstat);
if (strstr(path, "xenstored.pid")) {
memset(sb, 0, sizeof(*sb));
return 0;
}
return real___xstat(ver, path, sb);
}
VIR_MOCK_IMPL_RET_ARGS(stat, int,
const char *, path,
struct stat *, sb)
{
VIR_MOCK_REAL_INIT(stat);
if (strstr(path, "xenstored.pid")) {
memset(sb, 0, sizeof(*sb));
return 0;
}
return real_stat(path, sb);
}
#endif /* WITH_LIBXL && WITH_YAJL */