gtk2/testsuite/gtk/flattenlistmodel.c
Benjamin Otte 129691f3a6 flattenlistmodeL: Compute items-changed position properly
The code previously forgot to include the left child of the model's
node. Which of course only happened if that child wasn't NULL, which is
a common case.

Found and test provided by Matthias Clasen.
2019-07-02 02:53:00 +02:00

413 lines
10 KiB
C

/* GtkRBTree tests.
*
* Copyright (C) 2011, Red Hat, Inc.
* Authors: Benjamin Otte <otte@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <locale.h>
#include <gtk/gtk.h>
static GQuark number_quark;
static GQuark changes_quark;
static guint
get (GListModel *model,
guint position)
{
GObject *object = g_list_model_get_item (model, position);
g_assert (object != NULL);
return GPOINTER_TO_UINT (g_object_get_qdata (object, number_quark));
}
static char *
model_to_string (GListModel *model)
{
GString *string = g_string_new (NULL);
guint i;
for (i = 0; i < g_list_model_get_n_items (model); i++)
{
if (i > 0)
g_string_append (string, " ");
g_string_append_printf (string, "%u", get (model, i));
}
return g_string_free (string, FALSE);
}
static GListStore *
new_store (guint start,
guint end,
guint step);
static void
splice (GListStore *store,
guint pos,
guint removed,
guint *numbers,
guint added)
{
GObject **objects = g_newa (GObject *, added);
guint i;
for (i = 0; i < added; i++)
{
/* 0 cannot be differentiated from NULL, so don't use it */
g_assert (numbers[i] != 0);
objects[i] = g_object_new (G_TYPE_OBJECT, NULL);
g_object_set_qdata (objects[i], number_quark, GUINT_TO_POINTER (numbers[i]));
}
g_list_store_splice (store, pos, removed, (gpointer *) objects, added);
for (i = 0; i < added; i++)
g_object_unref (objects[i]);
}
static void
insert (GListStore *store,
guint pos,
guint number)
{
GObject *object;
/* 0 cannot be differentiated from NULL, so don't use it */
g_assert (number != 0);
object = g_object_new (G_TYPE_OBJECT, NULL);
g_object_set_qdata (object, number_quark, GUINT_TO_POINTER (number));
g_list_store_insert (store, pos, object);
g_object_unref (object);
}
static void
add (GListStore *store,
guint number)
{
GObject *object;
/* 0 cannot be differentiated from NULL, so don't use it */
g_assert (number != 0);
object = g_object_new (G_TYPE_OBJECT, NULL);
g_object_set_qdata (object, number_quark, GUINT_TO_POINTER (number));
g_list_store_append (store, object);
g_object_unref (object);
}
static GListStore *
add_store (GListStore *store,
guint start,
guint end,
guint step)
{
GListStore *child;
child = new_store (start, end, step);
g_list_store_append (store, child);
g_object_unref (child);
return child;
}
#define assert_model(model, expected) G_STMT_START{ \
char *s = model_to_string (G_LIST_MODEL (model)); \
if (!g_str_equal (s, expected)) \
g_assertion_message_cmpstr (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
#model " == " #expected, s, "==", expected); \
g_free (s); \
}G_STMT_END
#define assert_changes(model, expected) G_STMT_START{ \
GString *changes = g_object_get_qdata (G_OBJECT (model), changes_quark); \
if (!g_str_equal (changes->str, expected)) \
g_assertion_message_cmpstr (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
#model " == " #expected, changes->str, "==", expected); \
g_string_set_size (changes, 0); \
}G_STMT_END
static GListStore *
new_empty_store (void)
{
return g_list_store_new (G_TYPE_OBJECT);
}
static GListStore *
new_store (guint start,
guint end,
guint step)
{
GListStore *store = new_empty_store ();
guint i;
for (i = start; i <= end; i += step)
add (store, i);
return store;
}
static void
items_changed (GListModel *model,
guint position,
guint removed,
guint added,
GString *changes)
{
g_assert (removed != 0 || added != 0);
if (changes->len)
g_string_append (changes, ", ");
if (removed == 1 && added == 0)
{
g_string_append_printf (changes, "-%u", position);
}
else if (removed == 0 && added == 1)
{
g_string_append_printf (changes, "+%u", position);
}
else
{
g_string_append_printf (changes, "%u", position);
if (removed > 0)
g_string_append_printf (changes, "-%u", removed);
if (added > 0)
g_string_append_printf (changes, "+%u", added);
}
}
static void
free_changes (gpointer data)
{
GString *changes = data;
/* all changes must have been checked via assert_changes() before */
g_assert_cmpstr (changes->str, ==, "");
g_string_free (changes, TRUE);
}
static GtkFlattenListModel *
new_model (GListStore *store)
{
GtkFlattenListModel *result;
GString *changes;
result = gtk_flatten_list_model_new (G_TYPE_OBJECT, G_LIST_MODEL (store));
changes = g_string_new ("");
g_object_set_qdata_full (G_OBJECT(result), changes_quark, changes, free_changes);
g_signal_connect (result, "items-changed", G_CALLBACK (items_changed), changes);
return result;
}
static void
test_create_empty (void)
{
GtkFlattenListModel *flat;
flat = new_model (NULL);
assert_model (flat, "");
assert_changes (flat, "");
g_object_unref (flat);
}
static void
test_create (void)
{
GtkFlattenListModel *flat;
GListStore *model;
model = g_list_store_new (G_TYPE_LIST_MODEL);
add_store (model, 1, 3, 1);
add_store (model, 4, 4, 1);
add_store (model, 5, 7, 1);
add_store (model, 8, 10, 1);
flat = new_model (model);
assert_model (flat, "1 2 3 4 5 6 7 8 9 10");
assert_changes (flat, "");
g_object_unref (model);
assert_model (flat, "1 2 3 4 5 6 7 8 9 10");
assert_changes (flat, "");
g_object_unref (flat);
}
static void
test_model_add (void)
{
GtkFlattenListModel *flat;
GListStore *model;
model = g_list_store_new (G_TYPE_LIST_MODEL);
flat = new_model (model);
assert_model (flat, "");
assert_changes (flat, "");
add_store (model, 1, 3, 1);
add_store (model, 4, 4, 1);
add_store (model, 5, 7, 1);
add_store (model, 8, 10, 1);
assert_model (flat, "1 2 3 4 5 6 7 8 9 10");
assert_changes (flat, "0+3, +3, 4+3, 7+3");
g_object_unref (model);
g_object_unref (flat);
}
static void
test_submodel_add (void)
{
GtkFlattenListModel *flat;
GListStore *model, *store[4];
model = g_list_store_new (G_TYPE_LIST_MODEL);
flat = new_model (model);
assert_model (flat, "");
assert_changes (flat, "");
store[0] = add_store (model, 2, 3, 1);
store[1] = add_store (model, 4, 4, 1);
store[2] = add_store (model, 5, 4, 1);
store[3] = add_store (model, 8, 8, 1);
assert_model (flat, "2 3 4 8");
assert_changes (flat, "0+2, +2, +3");
insert (store[0], 0, 1);
splice (store[2], 0, 0, (guint[3]) { 5, 6, 7 }, 3);
splice (store[3], 1, 0, (guint[2]) { 9, 10 }, 2);
assert_model (flat, "1 2 3 4 5 6 7 8 9 10");
assert_changes (flat, "+0, 4+3, 8+2");
g_object_unref (model);
g_object_unref (flat);
}
static void
test_submodel_add2 (void)
{
GtkFlattenListModel *flat;
GListStore *model, *store[2];
model = g_list_store_new (G_TYPE_LIST_MODEL);
flat = new_model (model);
assert_model (flat, "");
assert_changes (flat, "");
store[0] = add_store (model, 1, 0, 0);
store[1] = add_store (model, 1, 0, 0);
store[2] = add_store (model, 1, 0, 0);
assert_model (flat, "");
assert_changes (flat, "");
add (store[0], 1);
assert_model (flat, "1");
assert_changes (flat, "+0");
add (store[1], 3);
assert_model (flat, "1 3");
assert_changes (flat, "+1");
add (store[0], 2);
assert_model (flat, "1 2 3");
assert_changes (flat, "+1");
add (store[1], 4);
assert_model (flat, "1 2 3 4");
assert_changes (flat, "+3");
g_object_unref (model);
g_object_unref (flat);
}
static void
test_model_remove (void)
{
GtkFlattenListModel *flat;
GListStore *model;
model = g_list_store_new (G_TYPE_LIST_MODEL);
add_store (model, 1, 3, 1);
add_store (model, 4, 4, 1);
add_store (model, 5, 7, 1);
add_store (model, 8, 10, 1);
flat = new_model (model);
assert_model (flat, "1 2 3 4 5 6 7 8 9 10");
assert_changes (flat, "");
splice (model, 1, 2, NULL, 0);
g_list_store_remove (model, 1);
g_list_store_remove (model, 0);
g_object_unref (model);
assert_model (flat, "");
assert_changes (flat, "3-4, 3-3, 0-3");
g_object_unref (flat);
}
static void
test_submodel_remove (void)
{
GtkFlattenListModel *flat;
GListStore *model, *store[4];
model = g_list_store_new (G_TYPE_LIST_MODEL);
store[0] = add_store (model, 1, 3, 1);
store[1] = add_store (model, 4, 4, 1);
store[2] = add_store (model, 5, 7, 1);
store[3] = add_store (model, 8, 10, 1);
flat = new_model (model);
assert_model (flat, "1 2 3 4 5 6 7 8 9 10");
assert_changes (flat, "");
g_list_store_remove (store[0], 0);
splice (store[2], 0, 3, NULL, 0);
splice (store[3], 1, 2, NULL, 0);
g_object_unref (model);
assert_model (flat, "2 3 4 8");
assert_changes (flat, "-0, 3-3, 4-2");
g_object_unref (flat);
}
int
main (int argc, char *argv[])
{
g_test_init (&argc, &argv, NULL);
setlocale (LC_ALL, "C");
number_quark = g_quark_from_static_string ("Hell and fire was spawned to be released.");
changes_quark = g_quark_from_static_string ("What did I see? Can I believe what I saw?");
g_test_add_func ("/flattenlistmodel/create_empty", test_create_empty);
g_test_add_func ("/flattenlistmodel/create", test_create);
g_test_add_func ("/flattenlistmodel/model/add", test_model_add);
#if GLIB_CHECK_VERSION (2, 58, 0) /* g_list_store_splice() is broken before 2.58 */
g_test_add_func ("/flattenlistmodel/submodel/add", test_submodel_add);
g_test_add_func ("/flattenlistmodel/submodel/add2", test_submodel_add2);
g_test_add_func ("/flattenlistmodel/model/remove", test_model_remove);
g_test_add_func ("/flattenlistmodel/submodel/remove", test_submodel_remove);
#endif
return g_test_run ();
}