Re: [Qemu-devel] [PATCH v3 4/6] tests: add qtest_expect_exit_status()

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Marc-André Lureau (marcandre.lureau@redhat.com) wrote:
> Modify the behaviour of qtest_quit() to check against the expected
> exit status value. The default remains 0.
> 
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

This looks similar to the one in the current pending migration pull
by Yury Kotov:
   'tests/libqtest: Allow setting expected exit status'

Dave

> ---
>  tests/libqtest.c | 41 ++++++++++++++++++++++-------------------
>  tests/libqtest.h |  9 +++++++++
>  2 files changed, 31 insertions(+), 19 deletions(-)
> 
> diff --git a/tests/libqtest.c b/tests/libqtest.c
> index 0a6b91737e..1f7910e583 100644
> --- a/tests/libqtest.c
> +++ b/tests/libqtest.c
> @@ -44,6 +44,7 @@ struct QTestState
>      bool big_endian;
>      bool irq_level[MAX_IRQ];
>      GString *rx;
> +    int exit_status;
>  };
>  
>  static GHookList abrt_hooks;
> @@ -123,27 +124,29 @@ static void kill_qemu(QTestState *s)
>          assert(pid == s->qemu_pid);
>      }
>  
> -    /*
> -     * We expect qemu to exit with status 0; anything else is
> -     * fishy and should be logged with as much detail as possible.
> -     */
>      wstatus = s->wstatus;
> -    if (wstatus) {
> -        if (WIFEXITED(wstatus)) {
> -            fprintf(stderr, "%s:%d: kill_qemu() tried to terminate QEMU "
> -                    "process but encountered exit status %d\n",
> -                    __FILE__, __LINE__, WEXITSTATUS(wstatus));
> -        } else if (WIFSIGNALED(wstatus)) {
> -            int sig = WTERMSIG(wstatus);
> -            const char *signame = strsignal(sig) ?: "unknown ???";
> -            const char *dump = WCOREDUMP(wstatus) ? " (core dumped)" : "";
> -
> -            fprintf(stderr, "%s:%d: kill_qemu() detected QEMU death "
> -                    "from signal %d (%s)%s\n",
> -                    __FILE__, __LINE__, sig, signame, dump);
> +    if (WIFEXITED(wstatus)) {
> +        if (WEXITSTATUS(wstatus) == s->exit_status) {
> +            return;
>          }
> -        abort();
> +        fprintf(stderr, "%s:%d: kill_qemu() tried to terminate QEMU "
> +                "process but encountered exit status %d\n",
> +                __FILE__, __LINE__, WEXITSTATUS(wstatus));
> +    } else if (WIFSIGNALED(wstatus)) {
> +        int sig = WTERMSIG(wstatus);
> +        const char *signame = strsignal(sig) ?: "unknown ???";
> +        const char *dump = WCOREDUMP(wstatus) ? " (core dumped)" : "";
> +
> +        fprintf(stderr, "%s:%d: kill_qemu() detected QEMU death "
> +                "from signal %d (%s)%s\n",
> +                __FILE__, __LINE__, sig, signame, dump);
>      }
> +    abort();
> +}
> +
> +void qtest_expect_exit_status(QTestState *s, int status)
> +{
> +    s->exit_status = status;
>  }
>  
>  static void kill_qemu_hook_func(void *s)
> @@ -213,7 +216,7 @@ QTestState *qtest_init_without_qmp_handshake(const char *extra_args)
>      gchar *command;
>      const char *qemu_binary = qtest_qemu_binary();
>  
> -    s = g_new(QTestState, 1);
> +    s = g_new0(QTestState, 1);
>  
>      socket_path = g_strdup_printf("/tmp/qtest-%d.sock", getpid());
>      qmp_socket_path = g_strdup_printf("/tmp/qtest-%d.qmp", getpid());
> diff --git a/tests/libqtest.h b/tests/libqtest.h
> index c8cffe5d68..d41229d7fd 100644
> --- a/tests/libqtest.h
> +++ b/tests/libqtest.h
> @@ -82,6 +82,15 @@ QTestState *qtest_init_with_serial(const char *extra_args, int *sock_fd);
>   */
>  void qtest_quit(QTestState *s);
>  
> +/**
> + * qtest_expect_exit_status:
> + * @s: #QTestState instance to operate on.
> + * @status: the expected exit status
> + *
> + * Set the expected exit status when calling qtest_quit().
> + */
> +void qtest_expect_exit_status(QTestState *s, int status);
> +
>  /**
>   * qtest_qmp_fds:
>   * @s: #QTestState instance to operate on.
> -- 
> 2.23.0
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK