iotests: Add mirror tests for orphaned source

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/tests/qemu-iotests/041 b/tests/qemu-iotests/041
index bc6cf782fe..2f54986434 100755
--- a/tests/qemu-iotests/041
+++ b/tests/qemu-iotests/041
@@ -966,5 +966,51 @@ class TestRepairQuorum(iotests.QMPTestCase):
         #       to check that this file is really driven by quorum
         self.vm.shutdown()
 
+# Test mirroring with a source that does not have any parents (not even a
+# BlockBackend)
+class TestOrphanedSource(iotests.QMPTestCase):
+    def setUp(self):
+        blk0 = { 'node-name': 'src',
+                 'driver': 'null-co' }
+
+        blk1 = { 'node-name': 'dest',
+                 'driver': 'null-co' }
+
+        blk2 = { 'node-name': 'dest-ro',
+                 'driver': 'null-co',
+                 'read-only': 'on' }
+
+        self.vm = iotests.VM()
+        self.vm.add_blockdev(self.qmp_to_opts(blk0))
+        self.vm.add_blockdev(self.qmp_to_opts(blk1))
+        self.vm.add_blockdev(self.qmp_to_opts(blk2))
+        self.vm.launch()
+
+    def tearDown(self):
+        self.vm.shutdown()
+
+    def test_no_job_id(self):
+        self.assert_no_active_block_jobs()
+
+        result = self.vm.qmp('blockdev-mirror', device='src', sync='full',
+                             target='dest')
+        self.assert_qmp(result, 'error/class', 'GenericError')
+
+    def test_success(self):
+        self.assert_no_active_block_jobs()
+
+        result = self.vm.qmp('blockdev-mirror', job_id='job', device='src',
+                             sync='full', target='dest')
+        self.assert_qmp(result, 'return', {})
+
+        self.complete_and_wait('job')
+
+    def test_failing_permissions(self):
+        self.assert_no_active_block_jobs()
+
+        result = self.vm.qmp('blockdev-mirror', device='src', sync='full',
+                             target='dest-ro')
+        self.assert_qmp(result, 'error/class', 'GenericError')
+
 if __name__ == '__main__':
     iotests.main(supported_fmts=['qcow2', 'qed'])