[quartz] Add wiggle test for quartz emoji.

test/Makefile.am

@@ -27,7 +27,7 @@ endif
 
 # Need to add quartz-surface-source
 if CAIRO_HAS_QUARTZ_SURFACE
-test_sources += $(quartz_surface_test_sources)
+test_sources += "$(quartz_surface_test_sources) $(quartz_color_font_test_sources)"
 endif
 
 if CAIRO_HAS_PDF_SURFACE

test/Makefile.sources

@@ -434,6 +434,8 @@ egl_surface_test_sources = \
 
 quartz_surface_test_sources = quartz-surface-source.c
 
+quartz_color_font_test_sources = quartz-color-font.c
+
 pdf_surface_test_sources = \
 	pdf-features.c \
 	pdf-mime-data.c \

test/meson.build

@@ -438,6 +438,7 @@ test_egl_sources = [
 
 test_quartz_sources = [
   'quartz-surface-source.c',
+  'quartz-color-font.c',
 ]
 
 test_pdf_sources = [

test/quartz-color-font.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright © 2022 John Ralls <jralls@ceridwen.us>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include "cairo-test.h"
+#include <cairo-quartz.h>
+
+#define WIDTH  100
+#define HEIGHT 50
+
+#define FONT "Apple Color Emoji"
+
+static const char smiley_face_utf8[] = { 0xf0, 0x9f, 0x99, 0x82, 0x00 }; /* U+1F642 */
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_select_font_face(cr, FONT, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+    cairo_set_font_size (cr, HEIGHT/2);
+    cairo_move_to (cr, width/5, 2*height/3);
+
+    cairo_show_text(cr, smiley_face_utf8);
+    cairo_show_text(cr, smiley_face_utf8);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (quartz_color_font,
+	    "Test color font",
+	    "quartz, font", /* keywords */
+	    NULL, /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw)