[pango/kill-ft-face] Add a very basic harfbuzz test

[Matthias Clasen <matthiasc src gnome org>]

commit e10c6995fa80c86ea3829a03db6d5107c22386a1
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jul 17 18:35:10 2019 -0700

    Add a very basic harfbuzz test
    
    For now, just check that we get a non-NULL
    hb_font_t that has a space glyph.

 tests/meson.build     |  1 +
 tests/test-harfbuzz.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)
---
diff --git a/tests/meson.build b/tests/meson.build
index f625a466..f652ff13 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -22,6 +22,7 @@ tests = [
   [ 'testboundaries_ucd' ],
   [ 'testcolor' ],
   [ 'testscript' ],
+  [ 'test-harfbuzz', [ 'test-harfbuzz.c' ], [ libpangocairo_dep ] ],
   [ 'cxx-test', [ 'cxx-test.cpp' ], [ libpangocairo_dep ] ],
   [ 'test-break', [ 'test-break.c', 'test-common.c' ], [libpangocairo_dep ] ],
 ]
diff --git a/tests/test-harfbuzz.c b/tests/test-harfbuzz.c
new file mode 100644
index 00000000..f9392b67
--- /dev/null
+++ b/tests/test-harfbuzz.c
@@ -0,0 +1,68 @@
+/* Pango
+ * test-harfbuzz.c: Test Pango harfbuzz apis
+ *
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * 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 <pango/pango.h>
+#include <pango/pangocairo.h>
+#include "test-common.h"
+
+static PangoContext *context;
+
+/* Some basic checks that the hb_font_t returned
+ * by pango_font_get_hb_font is functional
+ */
+static void
+test_hb_font (void)
+{
+  PangoFontDescription *desc;
+  PangoFont *font;
+  hb_font_t *hb_font;
+  hb_bool_t res;
+  hb_codepoint_t glyph;
+
+  desc = pango_font_description_from_string ("Cantarell 11");
+  font = pango_context_load_font (context, desc);
+  hb_font = pango_font_get_hb_font (font);
+
+  g_assert (hb_font != NULL);
+
+  res = hb_font_get_nominal_glyph (hb_font, 0x20, &glyph);
+
+  g_assert (res);
+  g_assert (glyph != 0);
+
+  g_object_unref (font);
+  pango_font_description_free (desc);
+}
+
+int
+main (int argc, char *argv[])
+{
+  PangoFontMap *fontmap;
+
+  fontmap = pango_cairo_font_map_get_default ();
+  context = pango_font_map_create_context (fontmap);
+
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/harfbuzz/font", test_hb_font);
+
+  return g_test_run ();
+}