tests/unit/test-bdrv-graph-mod.c

2  * Block node graph modifications tests
87  * When checking node for a possibility to update permissions, it's subtree
88  * should be correctly checked too. New permissions for each node should be
90  * check new permissions of the node only in context of old permissions of
102  *  | passthrough filter |--------->|  null-co node  |
106  * and then, tries to append filter under node. Expected behavior: fail.
108  * write permission to one node, without actually sharing it.
125  *                |  null co node  |
135     BlockDriverState *bs = no_perm_node("node");  in test_update_perm_tree()
168  *   | node |<---------| target |
171  * 2. Append @filter above @node. If should_update_child works correctly,
173  * as it will create a loop on node graph. Resulting picture should
189  *     | node |<---------| target |        +------+
190  *     +------+  backing +--------+        | node |
199     BlockDriverState *bs = no_perm_node("node");  in test_should_update_child()
226  * Check that when we replace node, old permissions of the node being removed
270  * write-to-selected node may have several DATA children, one of them may be