[libvirt] [PATCH v3] libxl: Add a test suite for libxl_domain_config generator

Jim Fehlig jfehlig at suse.com
Tue Aug 1 23:46:28 UTC 2017


On 08/01/2017 07:17 AM, Marek Marczykowski-Górecki wrote:
> From: Jim Fehlig <jfehlig at suse.com>
> 
> 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 at suse.com>
> [update to v3.5.0-rc1, improve error reporting, use /bin/true emulator]
> Signed-off-by: Marek Marczykowski-Górecki <marmarek at invisiblethingslab.com>
> ---
>   m4/virt-driver-libxl.m4                        |   6 +-
>   tests/Makefile.am                              |  18 +-
>   tests/libxlxml2domconfigdata/basic-hvm.json    |  89 ++++++++-
>   tests/libxlxml2domconfigdata/basic-hvm.xml     |  36 +++-
>   tests/libxlxml2domconfigdata/basic-pv.json     |  65 ++++++-
>   tests/libxlxml2domconfigdata/basic-pv.xml      |  28 ++-
>   tests/libxlxml2domconfigdata/moredevs-hvm.json | 111 ++++++++++-
>   tests/libxlxml2domconfigdata/moredevs-hvm.xml  |  63 ++++++-
>   tests/libxlxml2domconfigtest.c                 | 205 ++++++++++++++++++-
>   tests/virmocklibxl.c                           |  87 ++++++++-
>   10 files changed, 705 insertions(+), 3 deletions(-)
>   create mode 100644 tests/libxlxml2domconfigdata/basic-hvm.json
>   create mode 100644 tests/libxlxml2domconfigdata/basic-hvm.xml
>   create mode 100644 tests/libxlxml2domconfigdata/basic-pv.json
>   create mode 100644 tests/libxlxml2domconfigdata/basic-pv.xml
>   create mode 100644 tests/libxlxml2domconfigdata/moredevs-hvm.json
>   create mode 100644 tests/libxlxml2domconfigdata/moredevs-hvm.xml
>   create mode 100644 tests/libxlxml2domconfigtest.c
>   create mode 100644 tests/virmocklibxl.c
> 
> diff --git a/m4/virt-driver-libxl.m4 b/m4/virt-driver-libxl.m4
> index 96a9d47..3d635f0 100644
> --- a/m4/virt-driver-libxl.m4
> +++ b/m4/virt-driver-libxl.m4
> @@ -35,7 +35,7 @@ AC_DEFUN([LIBVIRT_DRIVER_CHECK_LIBXL], [
>     if test "x$with_libxl" = "xyes" ; then
>       LIBXL_FIRMWARE_DIR=$($PKG_CONFIG --variable xenfirmwaredir xenlight)
>       LIBXL_EXECBIN_DIR=$($PKG_CONFIG --variable libexec_bin xenlight)
> -  fi
> + fi

Opps, a spurious whitespace change. I've fixed it.

>   
>     dnl pkgconfig file not found, fallback to lib probe
>     if test "x$with_libxl" = "xno" ; then
> @@ -80,6 +80,10 @@ AC_DEFUN([LIBVIRT_DRIVER_CHECK_LIBXL], [
>         LIBXL_LIBS="$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="$old_LIBS"
>     fi
> diff --git a/tests/Makefile.am b/tests/Makefile.am
> index 3e3d580..49b9d40 100644
> --- a/tests/Makefile.am
> +++ b/tests/Makefile.am
> @@ -99,6 +99,7 @@ EXTRA_DIST =		\
>   	genericxml2xmlindata \
>   	genericxml2xmloutdata \
>   	interfaceschemadata \
> +	libxlxml2domconfigdata \
>   	lxcconf2xmldata \
>   	lxcxml2xmldata \
>   	lxcxml2xmloutdata \
> @@ -271,7 +272,8 @@ test_programs += xml2sexprtest sexpr2xmltest \
>   endif WITH_XEN
>   
>   if WITH_LIBXL
> -test_programs += xlconfigtest
> +test_programs += xlconfigtest libxlxml2domconfigtest
> +test_libraries += virmocklibxl.la
>   endif WITH_LIBXL
>   
>   if WITH_QEMU
> @@ -528,8 +530,20 @@ xlconfigtest_SOURCES = \
>   	xlconfigtest.c testutilsxen.c testutilsxen.h \
>   	testutils.c testutils.h
>   xlconfigtest_LDADD =$(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 = -module -avoid-version \
> +        -rpath /evil/libtool/hack/to/force/shared/lib/creation

In the meantime MOCKLIBS_{LDFLAGS,LIBADD} have been added for the mock linker 
options. I've changed this to

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 = \
> diff --git a/tests/libxlxml2domconfigdata/basic-hvm.json b/tests/libxlxml2domconfigdata/basic-hvm.json
> new file mode 100644
> index 0000000..6fa41f3
> --- /dev/null
> +++ b/tests/libxlxml2domconfigdata/basic-hvm.json
> @@ -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"
> +}
> diff --git a/tests/libxlxml2domconfigdata/basic-hvm.xml b/tests/libxlxml2domconfigdata/basic-hvm.xml
> new file mode 100644
> index 0000000..d8cd2a2
> --- /dev/null
> +++ b/tests/libxlxml2domconfigdata/basic-hvm.xml
> @@ -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>
> diff --git a/tests/libxlxml2domconfigdata/basic-pv.json b/tests/libxlxml2domconfigdata/basic-pv.json
> new file mode 100644
> index 0000000..7e1abd3
> --- /dev/null
> +++ b/tests/libxlxml2domconfigdata/basic-pv.json
> @@ -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"
> +}
> diff --git a/tests/libxlxml2domconfigdata/basic-pv.xml b/tests/libxlxml2domconfigdata/basic-pv.xml
> new file mode 100644
> index 0000000..b3bc601
> --- /dev/null
> +++ b/tests/libxlxml2domconfigdata/basic-pv.xml
> @@ -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='i686' machine='xenpv'>linux</type>

I changed the arch to x86_64 since there is no i686 machine in the XL test caps. 
(Note the change below to use XL test caps instead of the old xend-based ones.)

> +  </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>
> diff --git a/tests/libxlxml2domconfigdata/moredevs-hvm.json b/tests/libxlxml2domconfigdata/moredevs-hvm.json
> new file mode 100644
> index 0000000..8f861f3
> --- /dev/null
> +++ b/tests/libxlxml2domconfigdata/moredevs-hvm.json
> @@ -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"
> +}
> diff --git a/tests/libxlxml2domconfigdata/moredevs-hvm.xml b/tests/libxlxml2domconfigdata/moredevs-hvm.xml
> new file mode 100644
> index 0000000..f7eb09f
> --- /dev/null
> +++ b/tests/libxlxml2domconfigdata/moredevs-hvm.xml
> @@ -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>
> diff --git a/tests/libxlxml2domconfigtest.c b/tests/libxlxml2domconfigtest.c
> new file mode 100644
> index 0000000..d943cf2
> --- /dev/null
> +++ b/tests/libxlxml2domconfigtest.c
> @@ -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 at 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 xencaps;

I shortened this to 'caps', similar to other test files.

> +
> +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, xencaps, xmlopt,
> +                                        NULL, VIR_DOMAIN_XML_INACTIVE)))
> +        goto cleanup;
> +
> +    if (libxlBuildDomainConfig(gports, vmdef, NULL, ctx, xencaps, &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 ((xencaps = testXenCapsInit()) == NULL)

I changed this to use the libxl capabilties: testXLInitCaps()

Looks good otherwise, but it seems strange to essentially ACK my own patch :-). 
Perhaps Joao or one of his collegues could serve as an additional set of eyes. 
Either way, I'd need to wait for the freeze to lift before pushing this.

Regards,
Jim


> +        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 */
> diff --git a/tests/virmocklibxl.c b/tests/virmocklibxl.c
> new file mode 100644
> index 0000000..bc4b53d
> --- /dev/null
> +++ b/tests/virmocklibxl.c
> @@ -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 at 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 */
> 
> base-commit: ace45e67abbd9a033be54602db71a9dbc71408d7
> 




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