[pango/test-coverage: 9/20] tests: Add some PangoContext tests

[Matthias Clasen <matthiasc src gnome org>]

commit f2a158ca3cfb06da38b08db72ab6f02be6dae20a
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jun 26 15:40:56 2021 -0400

    tests: Add some PangoContext tests
    
    These improve converage for misc PangoContext apis.

 tests/meson.build   |   1 +
 tests/testcontext.c | 145 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 146 insertions(+)
---
diff --git a/tests/meson.build b/tests/meson.build
index ccd2541e..4dfc62f5 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -35,6 +35,7 @@ endif
 if cairo_dep.found()
   test_cflags += '-DHAVE_CAIRO'
   tests += [
+    [ 'testcontext', [ 'testcontext.c' ], [ libpangocairo_dep ] ],
     [ 'testiter', [ 'testiter.c' ], [ libpangocairo_dep ] ],
     [ 'test-ellipsize', [ 'test-ellipsize.c' ], [ libpangocairo_dep ] ],
     [ 'markup-parse', [ 'markup-parse.c' , 'test-common.c' ], [ libpangocairo_dep ] ],
diff --git a/tests/testcontext.c b/tests/testcontext.c
new file mode 100644
index 00000000..9cd8d833
--- /dev/null
+++ b/tests/testcontext.c
@@ -0,0 +1,145 @@
+/* Pango
+ * testcontext.c: Test program for PangoContext
+ *
+ * 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>
+#include <pango/pangocairo.h>
+
+static void
+test_list_families (void)
+{
+  PangoContext *context;
+  PangoFontFamily **families = NULL;
+  int n_families = 0;
+
+  context = pango_context_new ();
+
+  pango_context_list_families (context, &families, &n_families);
+  g_assert_null (families);
+  g_assert_cmpint (n_families, ==, 0);
+
+  pango_context_set_font_map (context, pango_cairo_font_map_get_default ());
+
+  pango_context_list_families (context, &families, &n_families);
+  g_assert_nonnull (families);
+  g_assert_cmpint (n_families, >, 0);
+
+  g_free (families);
+
+  g_object_unref (context);
+}
+
+static void
+test_set_language (void)
+{
+  PangoContext *context;
+
+  context = pango_context_new ();
+
+  pango_context_set_language (context, pango_language_from_string ("de-de"));
+  g_assert_true (pango_context_get_language (context) == pango_language_from_string ("de-de"));
+
+  pango_context_set_language (context, NULL);
+  g_assert_null (pango_context_get_language (context));
+
+  g_object_unref (context);
+}
+
+static void
+test_set_base_dir (void)
+{
+  PangoContext *context;
+
+  context = pango_context_new ();
+
+  pango_context_set_base_dir (context, PANGO_DIRECTION_RTL);
+  g_assert_true (pango_context_get_base_dir (context) == PANGO_DIRECTION_RTL);
+
+  pango_context_set_base_dir (context, PANGO_DIRECTION_WEAK_LTR);
+  g_assert_true (pango_context_get_base_dir (context) == PANGO_DIRECTION_WEAK_LTR);
+
+  g_object_unref (context);
+}
+
+static void
+test_set_base_gravity (void)
+{
+  PangoContext *context;
+
+  context = pango_context_new ();
+
+  pango_context_set_base_gravity (context, PANGO_GRAVITY_SOUTH);
+  g_assert_true (pango_context_get_base_gravity (context) == PANGO_GRAVITY_SOUTH);
+  g_assert_true (pango_context_get_gravity (context) == PANGO_GRAVITY_SOUTH);
+
+  pango_context_set_base_gravity (context, PANGO_GRAVITY_AUTO);
+  g_assert_true (pango_context_get_base_gravity (context) == PANGO_GRAVITY_AUTO);
+  g_assert_true (pango_context_get_gravity (context) == PANGO_GRAVITY_SOUTH);
+
+  g_object_unref (context);
+}
+
+static void
+test_set_gravity_hint (void)
+{
+  PangoContext *context;
+
+  context = pango_context_new ();
+
+  pango_context_set_gravity_hint (context, PANGO_GRAVITY_HINT_NATURAL);
+  g_assert_true (pango_context_get_gravity_hint (context) == PANGO_GRAVITY_HINT_NATURAL);
+
+  pango_context_set_gravity_hint (context, PANGO_GRAVITY_HINT_STRONG);
+  g_assert_true (pango_context_get_gravity_hint (context) == PANGO_GRAVITY_HINT_STRONG);
+
+  g_object_unref (context);
+}
+
+static void
+test_set_round_glyph_positions (void)
+{
+  PangoContext *context;
+
+  context = pango_context_new ();
+
+  pango_context_set_round_glyph_positions (context, TRUE);
+  g_assert_true (pango_context_get_round_glyph_positions (context));
+
+  pango_context_set_round_glyph_positions (context, FALSE);
+  g_assert_false (pango_context_get_round_glyph_positions (context));
+
+  g_object_unref (context);
+}
+
+int
+main (int argc, char *argv[])
+{
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/context/list-families", test_list_families);
+  g_test_add_func ("/context/set-language", test_set_language);
+  g_test_add_func ("/context/set-base-dir", test_set_base_dir);
+  g_test_add_func ("/context/set-base-gravity", test_set_base_gravity);
+  g_test_add_func ("/context/set-gravity-hint", test_set_gravity_hint);
+  g_test_add_func ("/context/set-round-glyph-positions", test_set_round_glyph_positions);
+
+  return g_test_run ();
+}