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actor: Add ActorIter.is_valid()

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It can be useful to check whether a ClutterActorIter is currently valid,
i.e. if the iterator has been initialized *and* if the actor to which it
refers to hasn't been updated.

We can also use the is_valid() method in the conformance test suite to
check that initialization has been successful, and that changing the
children list through the ClutterActorIter API leaves the iterator in a
valid state.
This commit is contained in:
Emmanuele Bassi
2012-06-27 12:57:36 +01:00
parent 1ca4937f1e
commit 1da42dd8a0
4 changed files with 44 additions and 4 deletions
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18
tests/conform/actor-iter.c
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@@ -33,6 +33,8 @@ actor_iter_traverse_children (TestConformSimpleFixture *fixture G_GNUC_UNUSED,
i = 0;
clutter_actor_iter_init (&iter, actor);
g_assert (clutter_actor_iter_is_valid (&iter));
while (clutter_actor_iter_next (&iter, &child))
{
g_assert (CLUTTER_IS_ACTOR (child));
@@ -54,6 +56,8 @@ actor_iter_traverse_children (TestConformSimpleFixture *fixture G_GNUC_UNUSED,
i = 0;
clutter_actor_iter_init (&iter, actor);
g_assert (clutter_actor_iter_is_valid (&iter));
while (clutter_actor_iter_prev (&iter, &child))
{
g_assert (CLUTTER_IS_ACTOR (child));
@@ -105,6 +109,8 @@ actor_iter_traverse_remove (TestConformSimpleFixture *fixture G_GNUC_UNUSED,
i = 0;
clutter_actor_iter_init (&iter, actor);
g_assert (clutter_actor_iter_is_valid (&iter));
while (clutter_actor_iter_next (&iter, &child))
{
g_assert (CLUTTER_IS_ACTOR (child));
@@ -120,6 +126,7 @@ actor_iter_traverse_remove (TestConformSimpleFixture *fixture G_GNUC_UNUSED,
g_assert (child == clutter_actor_get_last_child (actor));
clutter_actor_iter_remove (&iter);
g_assert (clutter_actor_iter_is_valid (&iter));
i += 1;
}
@@ -163,6 +170,9 @@ actor_iter_assignment (TestConformSimpleFixture *fixure G_GNUC_UNUSED,
iter_b = iter_a;
g_assert (clutter_actor_iter_is_valid (&iter_a));
g_assert (clutter_actor_iter_is_valid (&iter_b));
while (clutter_actor_iter_next (&iter_a, &child))
{
g_assert (CLUTTER_IS_ACTOR (child));
@@ -182,7 +192,7 @@ actor_iter_assignment (TestConformSimpleFixture *fixure G_GNUC_UNUSED,
g_assert_cmpint (i, ==, n_actors);
i = n_actors;
i = n_actors - 1;
while (clutter_actor_iter_prev (&iter_b, &child))
{
@@ -191,16 +201,16 @@ actor_iter_assignment (TestConformSimpleFixture *fixure G_GNUC_UNUSED,
if (g_test_verbose ())
g_print ("actor %2d = '%s'\n", i, clutter_actor_get_name (child));
if (i == n_actors)
if (i == n_actors - 1)
g_assert (child == clutter_actor_get_last_child (actor));
if (i == 1)
if (i == 0)
g_assert (child == clutter_actor_get_first_child (actor));
i -= 1;
}
g_assert_cmpint (i, ==, 0);
g_assert_cmpint (i, ==, -1);
g_object_unref (actor);
}