[gtk/wip/otte/listview: 198/199] testsuite: Add tests for GtkTreeListSorter



commit f3c20a123676a1a3b60d8dd7d234155c850801db
Author: Benjamin Otte <otte redhat com>
Date:   Wed Dec 18 05:39:04 2019 +0100

    testsuite: Add tests for GtkTreeListSorter

 testsuite/gtk/meson.build  |   1 +
 testsuite/gtk/treesorter.c | 265 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 266 insertions(+)
---
diff --git a/testsuite/gtk/meson.build b/testsuite/gtk/meson.build
index 4746b37cf0..f68b6cda25 100644
--- a/testsuite/gtk/meson.build
+++ b/testsuite/gtk/meson.build
@@ -66,6 +66,7 @@ tests = [
   ['treemodel', ['treemodel.c', 'liststore.c', 'treestore.c', 'filtermodel.c',
                  'modelrefcount.c', 'sortmodel.c', 'gtktreemodelrefcount.c']],
   ['treepath'],
+  ['treesorter'],
   ['treeview'],
   ['typename'],
   ['window'],
diff --git a/testsuite/gtk/treesorter.c b/testsuite/gtk/treesorter.c
new file mode 100644
index 0000000000..6d1e314d30
--- /dev/null
+++ b/testsuite/gtk/treesorter.c
@@ -0,0 +1,265 @@
+/* GtkSorter tests.
+ *
+ * Copyright (C) 2019, Red Hat, Inc.
+ * Authors: Benjamin Otte <otte gnome org>
+ *          Matthias Clasen <mclasen redhat com>
+ *
+ * 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 guint
+get_number (GObject *object)
+{
+  return GPOINTER_TO_UINT (g_object_get_qdata (object, number_quark));
+}
+
+static guint
+get_with_parents (GObject *object)
+{
+  guint number;
+
+  if (object == NULL)
+    return 0;
+
+  if (GTK_IS_TREE_LIST_ROW (object))
+    {
+      GtkTreeListRow *r;
+
+      r = GTK_TREE_LIST_ROW (object);
+      object = gtk_tree_list_row_get_item (r);
+      number = 10 * get_with_parents (G_OBJECT (gtk_tree_list_row_get_parent (r)));
+      g_object_unref (r);
+    }
+  else
+    number = 0;
+  
+  number += get_number (object);
+  g_object_unref (object);
+
+  return number;
+}
+
+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++)
+    {
+      GObject *object = g_list_model_get_item (model, i);
+
+      if (i > 0)
+        g_string_append (string, " ");
+      g_string_append_printf (string, "%u", get_with_parents (object));
+    }
+
+  return g_string_free (string, FALSE);
+}
+
+static GListStore *
+new_store (guint start,
+           guint end,
+           guint step);
+
+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);
+}
+
+#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_not_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
+
+/* This could be faster by foreach()ing through the models and comparing
+ * the item pointers */
+#define assert_model_equal(model1, model2) G_STMT_START{\
+  char *s1 = model_to_string (G_LIST_MODEL (model1)); \
+  char *s2 = model_to_string (G_LIST_MODEL (model2)); \
+  if (!g_str_equal (s1, s2)) \
+     g_assertion_message_cmpstr (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
+         #model1 " != " #model2, s1, "==", s2); \
+  g_free (s2); \
+  g_free (s1); \
+}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 GListModel *
+new_child_model (gpointer item,
+                 gpointer unused)
+{
+  guint n = get_number (item);
+
+  if (n == 1)
+    return NULL;
+
+  return G_LIST_MODEL (new_store (1, n - 1, 1));
+}
+
+static GListModel *
+new_model (guint size)
+{
+  return G_LIST_MODEL (gtk_tree_list_model_new (FALSE,
+                                                G_LIST_MODEL (new_store (1, size, 1)),
+                                                TRUE,
+                                                new_child_model,
+                                                NULL, NULL));
+}
+
+static void
+test_simple (void)
+{
+  GListModel *model;
+  GtkSortListModel *sort;
+  GtkSorter *sorter;
+
+  model = new_model (3);
+  assert_model (model, "1 2 21 3 31 32 321");
+
+  sorter = gtk_tree_list_row_sorter_new (NULL);
+  sort = gtk_sort_list_model_new (model, sorter);
+  assert_model (sort, "1 2 21 3 31 32 321");
+
+  g_object_unref (sorter);
+  g_object_unref (sort);
+  g_object_unref (model);
+}
+
+static GtkSorter *
+new_numeric_sorter (void)
+{
+  return gtk_numeric_sorter_new (gtk_cclosure_expression_new (G_TYPE_UINT, NULL, 0, NULL, 
(GCallback)get_number, NULL, NULL));
+}
+
+static void
+test_compare_total_order (void)
+{
+  GListModel *model;
+  GtkSorter *sorter;
+  guint i, j, n;
+
+  model = new_model (3);
+  assert_model (model, "1 2 21 3 31 32 321");
+
+  sorter = gtk_tree_list_row_sorter_new (new_numeric_sorter ());
+
+  n = g_list_model_get_n_items (model);
+  for (i = 0; i < n; i++)
+    {
+      gpointer item1 = g_list_model_get_item (model, i);
+      for (j = 0; j < n; j++)
+        {
+          gpointer item2 = g_list_model_get_item (model, j);
+
+          g_assert_cmpint (gtk_sorter_compare (sorter, item1, item2), ==, gtk_ordering_from_cmpfunc ((int) i 
- j));
+          g_object_unref (item2);
+        }
+      g_object_unref (item1);
+    }
+
+  g_object_unref (sorter);
+  g_object_unref (model);
+}
+
+static void
+test_compare_no_order (void)
+{
+  GListModel *model;
+  GtkSorter *sorter;
+  guint i, j, n;
+
+  model = new_model (3);
+  assert_model (model, "1 2 21 3 31 32 321");
+
+  sorter = gtk_tree_list_row_sorter_new (NULL);
+
+  n = g_list_model_get_n_items (model);
+  for (i = 0; i < n; i++)
+    {
+      gpointer item1 = g_list_model_get_item (model, i);
+      for (j = 0; j < n; j++)
+        {
+          gpointer item2 = g_list_model_get_item (model, j);
+
+          g_assert_cmpint (gtk_sorter_compare (sorter, item1, item2), ==, gtk_ordering_from_cmpfunc ((int) i 
- j));
+          g_object_unref (item2);
+        }
+      g_object_unref (item1);
+    }
+
+  g_object_unref (sorter);
+  g_object_unref (model);
+}
+
+int
+main (int argc, char *argv[])
+{
+  g_test_init (&argc, &argv, NULL);
+  setlocale (LC_ALL, "C");
+
+  number_quark = g_quark_from_static_string ("Like a trashcan fire in a prison cell");
+
+  g_test_add_func ("/sorter/simple", test_simple);
+  g_test_add_func ("/sorter/compare-total-order", test_compare_total_order);
+  g_test_add_func ("/sorter/compare-no-order", test_compare_no_order);
+
+  return g_test_run ();
+}


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