Re: [PATCH 6/6] tests/qtest: migration-test: Add tests for file-based migration

["Daniel P. Berrangé" <berrange@redhat.com>]

On Mon, Jun 26, 2023 at 03:22:10PM -0300, Fabiano Rosas wrote:
> From: Nikolay Borisov <nborisov@suse.com>
> 
> Add basic tests for file-based migration.
> 
> Signed-off-by: Nikolay Borisov <nborisov@suse.com>
> Signed-off-by: Fabiano Rosas <farosas@suse.de>
> ---
>  tests/qtest/migration-test.c | 66 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 66 insertions(+)
> 
> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> index acb778a8cd..5a77257a53 100644
> --- a/tests/qtest/migration-test.c
> +++ b/tests/qtest/migration-test.c
> @@ -763,6 +763,7 @@ static void test_migrate_end(QTestState *from, QTestState *to, bool test_dest)
>      cleanup("migsocket");
>      cleanup("src_serial");
>      cleanup("dest_serial");
> +    cleanup("migfile");
>  }
>  
>  #ifdef CONFIG_GNUTLS
> @@ -1460,11 +1461,28 @@ static void test_precopy_common(MigrateCommon *args)
>               */
>              wait_for_migration_complete(from);
>  
> +            /*
> +             * For file based migration the target must begin its
> +             * migration after the source has finished.
> +             */
> +            if (strstr(connect_uri, "file:")) {
> +                migrate_incoming_qmp(to, connect_uri, "{}");
> +            }
> +
>              if (!got_src_stop) {
>                  qtest_qmp_eventwait(from, "STOP");
>              }
>          } else {
>              wait_for_migration_complete(from);
> +
> +            /*
> +             * For file based migration the target must begin its
> +             * migration after the source has finished.
> +             */
> +            if (strstr(connect_uri, "file:")) {
> +                migrate_incoming_qmp(to, connect_uri, "{}");
> +            }
> +
>              /*
>               * Must wait for dst to finish reading all incoming
>               * data on the socket before issuing 'cont' otherwise
> @@ -1682,6 +1700,46 @@ static void test_precopy_unix_compress_nowait(void)
>      test_precopy_common(&args);
>  }
>  
> +static void test_precopy_file(void)
> +{
> +    g_autofree char *uri = g_strdup_printf("file:%s/migfile", tmpfs);

There's no unlink(), so I presume you're relying on the entire 'tmpfs'
being recursively deleted ?

> +    MigrateCommon args = {
> +        .connect_uri = uri,
> +        .listen_uri = "defer",
> +    };
> +
> +    test_precopy_common(&args);
> +}
> +
> +static void test_precopy_file_offset(void)
> +{
> +    g_autofree char *uri = g_strdup_printf("file:%s/migfile,offset=0x1000",
> +                                           tmpfs);
> +    MigrateCommon args = {
> +        .connect_uri = uri,
> +        .listen_uri = "defer",
> +    };
> +
> +    test_precopy_common(&args);

There ought to be something here that values 0->0x1000 bytes are
all zeroes in the file.


With regards,
Daniel
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