tests: add qmp_assert_error_class()

This helper will simplify a bunch of code checking for QMP errors and
can be shared by various tests.  Note that test-qga does check for
error description as well, so don't replace the code there for now.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/tests/drive_del-test.c b/tests/drive_del-test.c
index 673c10140f..4a1a0889c8 100644
--- a/tests/drive_del-test.c
+++ b/tests/drive_del-test.c
@@ -67,7 +67,6 @@ static void test_after_failed_device_add(void)
 {
     char driver[32];
     QDict *response;
-    QDict *error;
 
     snprintf(driver, sizeof(driver), "virtio-blk-%s",
              qvirtio_get_dev_type());
@@ -83,9 +82,7 @@ static void test_after_failed_device_add(void)
                    "   'drive': 'drive0'"
                    "}}", driver);
     g_assert(response);
-    error = qdict_get_qdict(response, "error");
-    g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");
-    qobject_unref(response);
+    qmp_assert_error_class(response, "GenericError");
 
     /* Delete the drive */
     drive_del();