Re: [Qemu-devel] [PATCH 2/2] tests: add a local test for guest agent

[Michael Roth <mdroth@linux.vnet.ibm.com>]

Quoting marcandre.lureau@redhat.com (2015-08-27 05:52:07)
> From: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> Add some local guest agent tests (as it is better than nothing).
> 
> They can be run inside or outside a VM, when run inside a VM, they will
> do a bit more side effects, such as freezing/thawing the FS or changing
> the time.
> 
> A better test would involve a managed VM (or container), but it might be
> better to leave that off to autotest/avocado.
> 
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> ---
>  tests/Makefile   |   3 +
>  tests/test-qga.c | 686 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 689 insertions(+)
>  create mode 100644 tests/test-qga.c
> 
> diff --git a/tests/Makefile b/tests/Makefile
> index 5271123..35671a1 100644
> --- a/tests/Makefile
> +++ b/tests/Makefile
> @@ -76,6 +76,7 @@ check-unit-y += tests/test-write-threshold$(EXESUF)
>  gcov-files-test-write-threshold-y = block/write-threshold.c
>  check-unit-$(CONFIG_GNUTLS_HASH) += tests/test-crypto-hash$(EXESUF)
>  check-unit-y += tests/test-crypto-cipher$(EXESUF)
> +check-unit-y += tests/test-qga$(EXESUF)
> 
>  check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
> 
> @@ -425,6 +426,8 @@ endif
>  qtest-obj-y = tests/libqtest.o libqemuutil.a libqemustub.a
>  $(check-qtest-y): $(qtest-obj-y)
> 
> +tests/test-qga: tests/test-qga.o $(qtest-obj-y)
> +
>  .PHONY: check-help
>  check-help:
>         @echo "Regression testing targets:"
> diff --git a/tests/test-qga.c b/tests/test-qga.c
> new file mode 100644
> index 0000000..1fb58ec
> --- /dev/null
> +++ b/tests/test-qga.c
> @@ -0,0 +1,686 @@
> +#include <locale.h>
> +#include <glib.h>
> +#include <glib/gstdio.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <errno.h>
> +#include <string.h>
> +#include <sys/types.h>
> +#include <sys/socket.h>
> +#include <sys/un.h>
> +#include <unistd.h>
> +
> +#include "libqtest.h"
> +#include "config-host.h"
> +
> +typedef struct {
> +    char *test_dir;
> +    GMainLoop *loop;
> +    int fd;
> +    GPid pid;
> +} TestFixture;
> +
> +static int connect_qga(char *path)
> +{
> +    int s, ret, len;
> +    struct sockaddr_un remote;
> +
> +    s = socket(AF_UNIX, SOCK_STREAM, 0);
> +    g_assert(s != -1);
> +
> +    remote.sun_family = AF_UNIX;
> +    do {
> +        strcpy(remote.sun_path, path);
> +        len = strlen(remote.sun_path) + sizeof(remote.sun_family);
> +        ret = connect(s, (struct sockaddr *)&remote, len);
> +        if (ret == -1) {
> +            g_usleep(G_USEC_PER_SEC);
> +        }
> +    } while (ret == -1);

I think we should loop on ECONNREFUSED (or whatever corresponds to
the socket not yet being created/bound), and the usual suspects
like EINTR. If it's anything else I don't think we'd want this to
loop indefinitely.

> +
> +    return s;
> +}
> +
> +static void qga_watch(GPid pid, gint status, gpointer user_data)
> +{
> +    TestFixture *fixture = user_data;
> +
> +    g_assert_cmpint(status, ==, 0);
> +    g_main_loop_quit(fixture->loop);
> +}
> +
> +static void
> +fixture_setup(TestFixture *fixture, gconstpointer data)
> +{
> +    const gchar *extra_arg = data;
> +    GError *error = NULL;
> +    gchar *cwd, *path, *cmd, **argv = NULL;
> +
> +    fixture->loop = g_main_loop_new(NULL, FALSE);
> +
> +    fixture->test_dir = g_strdup("/tmp/qgatest.XXXXXX");
> +    g_assert_nonnull(g_mkdtemp(fixture->test_dir));
> +
> +    path = g_build_filename(fixture->test_dir, "sock", NULL);
> +    cwd = g_get_current_dir();
> +    cmd = g_strdup_printf("%s%cqemu-ga -m unix-listen -t %s -p %s %s %s",

Would be nice if we could also run qemu-ga.exe for a w32 build with
binfmt set up like some of the other tests, but no idea how we'd get
at it through wine. I guess it would have to be a serial connection
or something...

Probably too environment-specific for a useful unit test. I guess in
the future we could plumb in custom qemu-ga invocation/script that
does some extra setup on the backend (VM/container/wine) and exposes
that via a local socket like we'd get via -chardev.

> +                          cwd, G_DIR_SEPARATOR,
> +                          fixture->test_dir, path,
> +                          getenv("QTEST_LOG") ? "-v" : "",
> +                          extra_arg ?: "");
> +    g_shell_parse_argv(cmd, NULL, &argv, &error);
> +    g_assert_no_error(error);
> +
> +    g_spawn_async(fixture->test_dir, argv, NULL,
> +                  G_SPAWN_SEARCH_PATH|G_SPAWN_DO_NOT_REAP_CHILD,
> +                  NULL, NULL, &fixture->pid, &error);
> +    g_assert_no_error(error);
> +
> +    g_child_watch_add(fixture->pid, qga_watch, fixture);
> +
> +    fixture->fd = connect_qga(path);
> +
> +    g_strfreev(argv);
> +    g_free(cmd);
> +    g_free(cwd);
> +    g_free(path);
> +}
> +
> +static void
> +fixture_tear_down(TestFixture *fixture, gconstpointer data)
> +{
> +    gchar *tmp;
> +
> +    kill(fixture->pid, SIGTERM);
> +
> +    g_main_loop_run(fixture->loop);
> +    g_main_loop_unref(fixture->loop);
> +
> +    g_spawn_close_pid(fixture->pid);
> +
> +    tmp = g_build_filename(fixture->test_dir, "foo", NULL);
> +    g_unlink(tmp);
> +    g_free(tmp);

Shouldn't the individual unit tests clean these up? I think a flag
determining whether or not we're running locally (set by default
obviously) would be useful for determining whether it makes sense
for us to clean them up or not.

> +
> +    tmp = g_build_filename(fixture->test_dir, "qga.state", NULL);
> +    g_unlink(tmp);
> +    g_free(tmp);
> +
> +    tmp = g_build_filename(fixture->test_dir, "sock", NULL);
> +    g_unlink(tmp);
> +    g_free(tmp);
> +
> +    g_rmdir(fixture->test_dir);
> +    g_free(fixture->test_dir);
> +}
> +
> +static void qmp_assertion_message_error(const char     *domain,
> +                                        const char     *file,
> +                                        int             line,
> +                                        const char     *func,
> +                                        const char     *expr,
> +                                        QDict          *dict)
> +{
> +    const char *class, *desc;
> +    char *s;
> +    QDict *error;
> +
> +    error = qdict_get_qdict(dict, "error");
> +    class = qdict_get_try_str(error, "class");
> +    desc = qdict_get_try_str(error, "desc");
> +
> +    s = g_strdup_printf("assertion failed %s: %s %s", expr, class, desc);
> +    g_assertion_message(domain, file, line, func, s);
> +    g_free(s);
> +}
> +
> +#define qmp_assert_no_error(err) do {                                   \
> +    if (qdict_haskey(err, "error")) {                                   \
> +        qmp_assertion_message_error(G_LOG_DOMAIN, __FILE__, __LINE__,   \
> +                                    G_STRFUNC, #err, err);              \
> +    }                                                                   \
> +} while (0)
> +
> +static void test_qga_sync_delimited(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    guint32 v, r = g_random_int();
> +    unsigned char c;
> +    QDict *ret;
> +    gchar *cmd;
> +
> +    cmd = g_strdup_printf("%c{'execute': 'guest-sync-delimited',"
> +                          " 'arguments': {'id': %u } }", 0xff, r);
> +    qmp_fd_send(fixture->fd, cmd);
> +    g_free(cmd);
> +
> +    v = read(fixture->fd, &c, 1);
> +    g_assert_cmpint(v, ==, 1);
> +    g_assert_cmpint(c, ==, 0xff);
> +
> +    ret = qmp_fd_receive(fixture->fd);
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    v = qdict_get_int(ret, "return");
> +    g_assert_cmpint(r, ==, v);
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_sync(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    guint32 v, r = g_random_int();
> +    QDict *ret;
> +    gchar *cmd;
> +
> +    cmd = g_strdup_printf("%c{'execute': 'guest-sync',"
> +                          " 'arguments': {'id': %u } }", 0xff, r);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    g_free(cmd);
> +
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    v = qdict_get_int(ret, "return");
> +    g_assert_cmpint(r, ==, v);
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_ping(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-ping'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_invalid_cmd(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret, *error;
> +    const gchar *class, *desc;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-invalid-cmd'}");
> +    g_assert_nonnull(ret);
> +
> +    error = qdict_get_qdict(ret, "error");
> +    class = qdict_get_try_str(error, "class");
> +    desc = qdict_get_try_str(error, "desc");
> +
> +    g_assert_cmpstr(class, ==, "CommandNotFound");
> +    g_assert_cmpint(strlen(desc), >, 0);
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_info(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret, *val;
> +    const gchar *version;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-info'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    val = qdict_get_qdict(ret, "return");
> +    version = qdict_get_try_str(val, "version");
> +    g_assert_cmpstr(version, ==, QEMU_VERSION);
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_get_vcpus(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    QList *list;
> +    const QListEntry *entry;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-get-vcpus'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    /* check there is at least a cpu */
> +    list = qdict_get_qlist(ret, "return");
> +    entry = qlist_first(list);
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "online"));
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "logical-id"));
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_get_fsinfo(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    QList *list;
> +    const QListEntry *entry;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-get-fsinfo'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    /* check there is at least a fs */
> +    list = qdict_get_qlist(ret, "return");
> +    entry = qlist_first(list);
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "name"));
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "mountpoint"));
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "type"));
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "disk"));
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_get_memory_block_info(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret, *val;
> +    int64_t size;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-get-memory-block-info'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    /* check there is at least some memory */
> +    val = qdict_get_qdict(ret, "return");
> +    size = qdict_get_int(val, "size");
> +    g_assert_cmpint(size, >, 0);
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_get_memory_blocks(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    QList *list;
> +    const QListEntry *entry;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-get-memory-blocks'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    list = qdict_get_qlist(ret, "return");
> +    entry = qlist_first(list);
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "phys-index"));
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "online"));
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_network_get_interfaces(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    QList *list;
> +    const QListEntry *entry;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-network-get-interfaces'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    /* check there is at least a cpu */

copy/paste artifact

> +    list = qdict_get_qlist(ret, "return");
> +    entry = qlist_first(list);
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "name"));
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_file_ops(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    gchar *cmd, *path;
> +    const gchar *b64;
> +    QDict *ret, *val;
> +    int64_t id, count, eof;
> +    FILE *f;
> +    char tmp[100];
> +
> +    /* open */
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-file-open',"
> +                 " 'arguments': { 'path': 'foo', 'mode': 'w+' } }");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    id = qdict_get_int(ret, "return");
> +    QDECREF(ret);
> +
> +    /* write */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-write',"
> +                          " 'arguments': { 'handle': %" G_GINT64_FORMAT ","
> +                          " 'buf-b64': 'aGVsbG8gd29ybGQK' } }", id);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    val = qdict_get_qdict(ret, "return");
> +    count = qdict_get_int(val, "count");
> +    eof = qdict_get_bool(val, "eof");
> +    g_assert_cmpint(count, ==, 12);
> +    g_assert_cmpint(eof, ==, 0);
> +    QDECREF(ret);
> +    g_free(cmd);
> +
> +    /* flush */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-flush',"
> +                          " 'arguments': {'handle': %" G_GINT64_FORMAT "} }",
> +                          id);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    QDECREF(ret);
> +    g_free(cmd);
> +
> +    /* close */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-close',"
> +                          " 'arguments': {'handle': %" G_GINT64_FORMAT "} }",
> +                          id);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    QDECREF(ret);
> +    g_free(cmd);
> +
> +    /* check content */
> +    path = g_build_filename(fixture->test_dir, "foo", NULL);
> +    f = fopen(path, "r");
> +    g_assert_nonnull(f);
> +    count = fread(tmp, 1, sizeof(tmp), f);
> +    g_assert_cmpint(count, ==, 12);
> +    tmp[count] = 0;
> +    g_assert_cmpstr(tmp, ==, "hello world\n");
> +    fclose(f);
> +
> +    /* open */
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-file-open',"
> +                 " 'arguments': { 'path': 'foo', 'mode': 'r' } }");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    id = qdict_get_int(ret, "return");
> +    QDECREF(ret);
> +
> +    /* read */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-read',"
> +                          " 'arguments': { 'handle': %" G_GINT64_FORMAT "} }",
> +                          id);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    val = qdict_get_qdict(ret, "return");
> +    count = qdict_get_int(val, "count");
> +    eof = qdict_get_bool(val, "eof");
> +    b64 = qdict_get_str(val, "buf-b64");
> +    g_assert_cmpint(count, ==, 12);
> +    g_assert(eof);
> +    g_assert_cmpstr(b64, ==, "aGVsbG8gd29ybGQK");
> +
> +    QDECREF(ret);
> +    g_free(cmd);
> +
> +    /* read eof */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-read',"
> +                          " 'arguments': { 'handle': %" G_GINT64_FORMAT "} }",
> +                          id);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    val = qdict_get_qdict(ret, "return");
> +    count = qdict_get_int(val, "count");
> +    eof = qdict_get_bool(val, "eof");
> +    b64 = qdict_get_str(val, "buf-b64");
> +    g_assert_cmpint(count, ==, 0);
> +    g_assert(eof);
> +    g_assert_cmpstr(b64, ==, "");
> +    QDECREF(ret);
> +    g_free(cmd);
> +
> +    /* seek */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-seek',"
> +                          " 'arguments': { 'handle': %" G_GINT64_FORMAT ", "
> +                          " 'offset': %d, 'whence': %d } }",
> +                          id, 6, SEEK_SET);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    qmp_assert_no_error(ret);
> +    val = qdict_get_qdict(ret, "return");
> +    count = qdict_get_int(val, "position");
> +    eof = qdict_get_bool(val, "eof");
> +    g_assert_cmpint(count, ==, 6);
> +    g_assert(!eof);
> +    QDECREF(ret);
> +    g_free(cmd);
> +
> +    /* partial read */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-read',"
> +                          " 'arguments': { 'handle': %" G_GINT64_FORMAT "} }",
> +                          id);
> +    ret = qmp_fd(fixture->fd, cmd);
> +    val = qdict_get_qdict(ret, "return");
> +    count = qdict_get_int(val, "count");
> +    eof = qdict_get_bool(val, "eof");
> +    b64 = qdict_get_str(val, "buf-b64");
> +    g_assert_cmpint(count, ==, 6);
> +    g_assert(eof);
> +    g_assert_cmpstr(b64, ==, "d29ybGQK");
> +
> +    QDECREF(ret);
> +    g_free(cmd);
> +
> +    /* close */
> +    cmd = g_strdup_printf("{'execute': 'guest-file-close',"
> +                          " 'arguments': {'handle': %" G_GINT64_FORMAT "} }",
> +                          id);
> +    ret = qmp_fd(fixture->fd, cmd);

I like having a complex test to make sure all the guest-file-* commands
interact properly, but would be good if we could preceed this with
simpler guest-file-* tests that test each command more granularly.

That could be added as a follow-up though, since this is still a good
test to have.

> +    QDECREF(ret);
> +    g_free(cmd);
> +}
> +
> +static void test_qga_get_time(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    int64_t time;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-get-time'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    time = qdict_get_int(ret, "return");
> +    g_assert_cmpint(time, >, 0);
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_set_time(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    int64_t current, time;
> +    gchar *cmd;
> +
> +    /* get current time */
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-get-time'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    current = qdict_get_int(ret, "return");
> +    g_assert_cmpint(current, >, 0);
> +    QDECREF(ret);
> +
> +    /* set some old time */
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-set-time',"
> +                 " 'arguments': { 'time': 1000 } }");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    QDECREF(ret);
> +
> +    /* check old time */
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-get-time'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    time = qdict_get_int(ret, "return");
> +    g_assert_cmpint(time / 1000, <, G_USEC_PER_SEC * 10);
> +    QDECREF(ret);
> +
> +    /* set back current time */
> +    cmd = g_strdup_printf("{'execute': 'guest-set-time',"
> +                          " 'arguments': { 'time': %" G_GINT64_FORMAT " } }",
> +                          current + time * 1000);
> +    ret = qmp_fd(fixture->fd, cmd);

Little concerned about playing with host time in our unit tests. Maybe
this sort of test should only be enabled if a flag is set, and turned
of by default?

Ah, I see that's where running_in_virt() comes into play. Nice :)

> +    g_free(cmd);
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_fstrim(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    QList *list;
> +    const QListEntry *entry;
> +
> +    /* get current time */

copy/paste artifact

> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-fstrim',"
> +                 " arguments: { minimum: 4194304 } }");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    list = qdict_get_qlist(ret, "return");
> +    entry = qlist_first(list);
> +    g_assert(qdict_haskey(qobject_to_qdict(entry->value), "paths"));
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_blacklist(gconstpointer data)
> +{
> +    TestFixture fix;
> +    QDict *ret, *error;
> +    const gchar *class, *desc;
> +
> +    fixture_setup(&fix, "-b guest-ping,guest-get-time");
> +
> +    /* check blacklist */
> +    ret = qmp_fd(fix.fd, "{'execute': 'guest-ping'}");
> +    g_assert_nonnull(ret);
> +    error = qdict_get_qdict(ret, "error");
> +    class = qdict_get_try_str(error, "class");
> +    desc = qdict_get_try_str(error, "desc");
> +    g_assert_cmpstr(class, ==, "GenericError");
> +    g_assert_nonnull(g_strstr_len(desc, -1, "has been disabled"));
> +    QDECREF(ret);
> +
> +    ret = qmp_fd(fix.fd, "{'execute': 'guest-get-time'}");
> +    g_assert_nonnull(ret);
> +    error = qdict_get_qdict(ret, "error");
> +    class = qdict_get_try_str(error, "class");
> +    desc = qdict_get_try_str(error, "desc");
> +    g_assert_cmpstr(class, ==, "GenericError");
> +    g_assert_nonnull(g_strstr_len(desc, -1, "has been disabled"));
> +    QDECREF(ret);
> +
> +    /* check something work */
> +    ret = qmp_fd(fix.fd, "{'execute': 'guest-get-fsinfo'}");
> +    qmp_assert_no_error(ret);
> +    QDECREF(ret);
> +
> +    fixture_tear_down(&fix, NULL);
> +}
> +
> +static void test_qga_fsfreeze_status(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    const gchar *status;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-fsfreeze-status'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +
> +    status = qdict_get_try_str(ret, "return");
> +    g_assert_cmpstr(status, ==, "thawed");
> +
> +    QDECREF(ret);
> +}
> +
> +static void test_qga_fsfreeze_and_thaw(gconstpointer fix)
> +{
> +    const TestFixture *fixture = fix;
> +    QDict *ret;
> +    const gchar *status;
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-fsfreeze-freeze'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    QDECREF(ret);
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-fsfreeze-status'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    status = qdict_get_try_str(ret, "return");
> +    g_assert_cmpstr(status, ==, "frozen");
> +    QDECREF(ret);
> +
> +    ret = qmp_fd(fixture->fd, "{'execute': 'guest-fsfreeze-thaw'}");
> +    g_assert_nonnull(ret);
> +    qmp_assert_no_error(ret);
> +    QDECREF(ret);
> +}
> +
> +static gboolean running_in_virt(const gchar *virt)
> +{
> +    gchar *virt_what = NULL;
> +    gint status;
> +    gboolean success;
> +
> +    success = g_spawn_command_line_sync("virt-what", &virt_what, NULL,
> +                                        &status, NULL);
> +
> +    success = success && status == 0 && g_strcmp0(virt_what, virt);
> +
> +    g_free(virt_what);
> +
> +    return success;
> +}
> +int main(int argc, char **argv)
> +{
> +    TestFixture fix;
> +    int ret;
> +
> +    setlocale (LC_ALL, "");
> +    g_test_init(&argc, &argv, NULL);
> +    fixture_setup(&fix, NULL);
> +
> +    g_test_add_data_func("/qga/sync-delimited", &fix, test_qga_sync_delimited);
> +    g_test_add_data_func("/qga/sync", &fix, test_qga_sync);
> +    g_test_add_data_func("/qga/ping", &fix, test_qga_ping);
> +    g_test_add_data_func("/qga/info", &fix, test_qga_info);
> +    g_test_add_data_func("/qga/network-get-interfaces", &fix,
> +                         test_qga_network_get_interfaces);
> +    g_test_add_data_func("/qga/get-vcpus", &fix, test_qga_get_vcpus);
> +    g_test_add_data_func("/qga/get-fsinfo", &fix, test_qga_get_fsinfo);
> +    g_test_add_data_func("/qga/get-memory-block-info", &fix,
> +                         test_qga_get_memory_block_info);
> +    g_test_add_data_func("/qga/get-memory-blocks", &fix,
> +                         test_qga_get_memory_blocks);
> +    g_test_add_data_func("/qga/file-ops", &fix, test_qga_file_ops);
> +    g_test_add_data_func("/qga/get-time", &fix, test_qga_get_time);
> +    g_test_add_data_func("/qga/invalid-cmd", &fix, test_qga_invalid_cmd);
> +    g_test_add_data_func("/qga/fsfreeze-status", &fix,
> +                         test_qga_fsfreeze_status);
> +
> +    g_test_add_data_func("/qga/blacklist", NULL, test_qga_blacklist);
> +
> +    if (running_in_virt("kvm")) {
> +        g_test_add_data_func("/qga/fsfreeze-and-thaw", &fix,
> +                             test_qga_fsfreeze_and_thaw);
> +        g_test_add_data_func("/qga/set-time", &fix, test_qga_set_time);
> +        if (g_test_thorough()) {
> +            g_test_add_data_func("/qga/fstrim", &fix, test_qga_fstrim);
> +        }
> +    }
> +
> +    ret = g_test_run();
> +
> +    fixture_tear_down(&fix, NULL);
> +
> +    return ret;
> +}
> -- 
> 2.4.3
>