[gthumb] tests: added a test for the gtk utils

[Paolo Bacchilega <paobac src gnome org>]

commit 749fc68a5aea52f2d950cced6c6a2cf40716d080
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Mon Dec 16 09:31:03 2019 +0100

    tests: added a test for the gtk utils

 gthumb/meson.build      |  9 ++++++
 gthumb/test-gtk-utils.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+)
---
diff --git a/gthumb/meson.build b/gthumb/meson.build
index e4222397..ab25ccb0 100644
--- a/gthumb/meson.build
+++ b/gthumb/meson.build
@@ -352,6 +352,15 @@ test('glib-utils',
   )
 )
 
+test('gtk-utils',
+  executable('test-gtk-utils',
+    sources : [ 'test-gtk-utils.c', 'gtk-utils.c', 'color-utils.c' ],
+    dependencies : common_deps,
+    include_directories : config_inc,
+    c_args : c_args,
+  )
+)
+
 test('gsignature',
   executable('test-gsignature',
     sources : [ 'test-gsignature.c', 'gsignature.c'],
diff --git a/gthumb/test-gtk-utils.c b/gthumb/test-gtk-utils.c
new file mode 100644
index 00000000..1db58cb9
--- /dev/null
+++ b/gthumb/test-gtk-utils.c
@@ -0,0 +1,81 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  GThumb
+ *
+ *  Copyright (C) 2019 Free Software Foundation, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <string.h>
+#include <locale.h>
+#include <gtk/gtk.h>
+#include "gtk-utils.h"
+
+
+static char *
+test_gtk_tree_path_get_previous_or_parent (const char *path)
+{
+       GtkTreePath *tree_path;
+       GtkTreePath *result;
+       char        *result_s;
+
+       tree_path = gtk_tree_path_new_from_string (path);
+       if (tree_path == NULL)
+               return NULL;
+
+       result = _gtk_tree_path_get_previous_or_parent (tree_path);
+       if (result != NULL) {
+               result_s = gtk_tree_path_to_string (result);
+               gtk_tree_path_free (result);
+       }
+       else
+               result_s = NULL;
+
+       gtk_tree_path_free (tree_path);
+
+       return result_s;
+}
+
+
+static void
+test_gtk_tree_path_get_previous_or_parent_all (void)
+{
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("0"), ==, NULL);
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("1"), ==, "0");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("2"), ==, "1");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("0:0"), ==, "0");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("0:1"), ==, "0:0");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("0:2"), ==, "0:1");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("0:0:0"), ==, "0:0");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("0:0:1"), ==, "0:0:0");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("0:0:2"), ==, "0:0:1");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("4:10:0:3"), ==, "4:10:0:2");
+       g_assert_cmpstr (test_gtk_tree_path_get_previous_or_parent ("4:10:0"), ==, "4:10");
+}
+
+
+int
+main (int   argc,
+      char *argv[])
+{
+       setlocale (LC_ALL, "");
+       g_test_init (&argc, &argv, NULL);
+
+       g_test_add_func ("/gtk-utils/_gtk_tree_path_get_previous_or_parent", 
test_gtk_tree_path_get_previous_or_parent_all);
+
+       return g_test_run ();
+}