[pango/test-coverage: 17/22] tests: Add tests for PangoTabArray

[Matthias Clasen <matthiasc src gnome org>]

commit f8dec445d4e44797c6132da4a2a2982a7592610c
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jun 26 22:56:12 2021 -0400

    tests: Add tests for PangoTabArray

 tests/meson.build |   1 +
 tests/testtabs.c  | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 111 insertions(+)
---
diff --git a/tests/meson.build b/tests/meson.build
index 54345d3b..3e9d8075 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -25,6 +25,7 @@ tests = [
   [ 'testscript' ],
   [ 'testlanguage' ],
   [ 'testmatrix' ],
+  [ 'testtabs' ],
 ]
 
 if build_pangoft2
diff --git a/tests/testtabs.c b/tests/testtabs.c
new file mode 100644
index 00000000..2a62f1d6
--- /dev/null
+++ b/tests/testtabs.c
@@ -0,0 +1,110 @@
+/* Pango
+ * testtabs.c: Test program for PangoTabArray
+ *
+ * Copyright (C) 2021 Matthias Clasen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <glib.h>
+#include <pango/pango.h>
+
+static void
+test_tabs_basic (void)
+{
+  PangoTabArray *tabs;
+  PangoTabAlign align;
+  int location;
+
+  tabs = pango_tab_array_new (1, TRUE);
+
+  g_assert_true (pango_tab_array_get_positions_in_pixels (tabs));
+  g_assert_true (pango_tab_array_get_size (tabs) == 1);
+
+  pango_tab_array_set_tab (tabs, 0, PANGO_TAB_LEFT, 10);
+  pango_tab_array_get_tab (tabs, 0, &align, &location);
+  g_assert_true (align == PANGO_TAB_LEFT);
+  g_assert_true (location == 10);
+
+  pango_tab_array_free (tabs);
+}
+
+static void
+test_tabs_copy (void)
+{
+  PangoTabArray *tabs, *tabs2;
+  PangoTabAlign *alignments;
+  int *locations;
+
+  tabs = pango_tab_array_new_with_positions (2, TRUE,
+                                             PANGO_TAB_LEFT, 10,
+                                             PANGO_TAB_LEFT, 20);
+
+  tabs2 = pango_tab_array_copy (tabs);
+  pango_tab_array_get_tabs (tabs2, &alignments, &locations);
+  g_assert_true (alignments[0] == PANGO_TAB_LEFT);
+  g_assert_true (alignments[1] == PANGO_TAB_LEFT);
+  g_assert_true (locations[0] == 10);
+  g_assert_true (locations[1] == 20);
+
+  g_free (alignments);
+  g_free (locations);
+
+  pango_tab_array_free (tabs);
+  pango_tab_array_free (tabs2);
+}
+
+static void
+test_tabs_resize (void)
+{
+  PangoTabArray *tabs;
+  PangoTabAlign *alignments;
+  int *locations;
+
+  tabs = pango_tab_array_new (1, TRUE);
+
+  pango_tab_array_set_tab (tabs, 0, PANGO_TAB_LEFT, 10);
+
+  g_assert_true (pango_tab_array_get_size (tabs) == 1);
+
+  pango_tab_array_resize (tabs, 2);
+  g_assert_true (pango_tab_array_get_size (tabs) == 2);
+
+  pango_tab_array_set_tab (tabs, 1, PANGO_TAB_LEFT, 20);
+
+  pango_tab_array_get_tabs (tabs, &alignments, &locations);
+  g_assert_true (alignments[0] == PANGO_TAB_LEFT);
+  g_assert_true (alignments[1] == PANGO_TAB_LEFT);
+  g_assert_true (locations[0] == 10);
+  g_assert_true (locations[1] == 20);
+
+  g_free (alignments);
+  g_free (locations);
+
+  pango_tab_array_free (tabs);
+}
+
+int
+main (int argc, char *argv[])
+{
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/tabs/basic", test_tabs_basic);
+  g_test_add_func ("/tabs/copy", test_tabs_copy);
+  g_test_add_func ("/tabs/resize", test_tabs_resize);
+
+  return g_test_run ();
+}