From: Pekka Paalanen <pekka.paala...@collabora.co.uk>
It should not be possible to create a loop by nesting sub-surfaces.
Currently Weston fails this test.
Signed-off-by: Pekka Paalanen <pekka.paala...@collabora.co.uk>
---
tests/subsurface-test.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/tests/subsurface-test.c b/tests/subsurface-test.c
index 0a210fb..98e00fe 100644
--- a/tests/subsurface-test.c
+++ b/tests/subsurface-test.c
@@ -220,6 +220,28 @@ TEST(test_subsurface_nesting_parent)
client_roundtrip(client);
}
+FAIL_TEST(test_subsurface_loop_paradox)
+{
+ struct client *client;
+ struct wl_surface *surface[3];
+ struct wl_subcompositor *subco;
+
+ client = client_create(100, 50, 123, 77);
+ assert(client);
+
+ subco = get_subcompositor(client);
+ surface[0] = wl_compositor_create_surface(client->wl_compositor);
+ surface[1] = wl_compositor_create_surface(client->wl_compositor);
+ surface[2] = wl_compositor_create_surface(client->wl_compositor);
+
+ /* create a nesting loop */
+ wl_subcompositor_get_subsurface(subco, surface[1], surface[0]);
+ wl_subcompositor_get_subsurface(subco, surface[2], surface[1]);
+ wl_subcompositor_get_subsurface(subco, surface[0], surface[2]);
+
+ client_roundtrip(client);
+}
+
FAIL_TEST(test_subsurface_place_above_stranger)
{
struct client *client;
--
1.8.1.5
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