[pango/font-serialize-test: 4/7] tests: Fix font setup for Emoji

[Matthias Clasen <matthiasc src gnome org>]

commit 99d6b3fc3c5eb96b836a5ce934e6628c4217d623
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Nov 26 23:03:16 2021 -0500

    tests: Fix font setup for Emoji
    
    We need to copy the scale hack for bitmaps.

 tests/fonts/fonts.conf | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/test-layout.c    | 11 ++++-----
 2 files changed, 70 insertions(+), 6 deletions(-)
---
diff --git a/tests/fonts/fonts.conf b/tests/fonts/fonts.conf
new file mode 100644
index 00000000..5ff7022b
--- /dev/null
+++ b/tests/fonts/fonts.conf
@@ -0,0 +1,65 @@
+<?xml version="1.0"?>
+<!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
+<fontconfig>
+  <cachedir>/tmp/cache</cachedir>
+
+  <match target="font">
+    <test name="outline" compare="eq">
+      <bool>false</bool>
+    </test>
+    <edit name="pixelsizefixupfactor" mode="assign">
+      <divide>
+        <name target="pattern">pixelsize</name>
+        <name target="font">pixelsize</name>
+      </divide>
+    </edit>
+  </match>
+
+  <match target="font">
+    <test name="outline" compare="eq">
+      <bool>false</bool>
+    </test>
+    <test name="pixelsizefixupfactor" compare="not_eq">
+      <double>1.0</double>
+    </test>
+    <edit name="matrix" mode="assign">
+      <times>
+        <name>matrix</name>
+        <matrix>
+          <name>pixelsizefixupfactor</name> <double>0</double>
+          <double>0</double> <name>pixelsizefixupfactor</name>
+         </matrix>
+      </times>
+    </edit>
+    <edit name="size" mode="assign">
+      <divide>
+        <name>size</name>
+        <name>pixelsizefixupfactor</name>
+      </divide>
+    </edit>
+  </match>
+
+  <alias binding="same">
+    <family>Noto Color Emoji</family>
+    <default><family>emoji</family></default>
+  </alias>
+
+  <match>
+    <test name="lang">
+      <string>und-zsye</string>
+    </test>
+    <test qual="all" name="family" compare="not_eq">
+      <string>emoji</string>
+    </test>
+    <edit name="family" mode="append" binding="strong">
+      <string>emoji</string>
+    </edit>
+  </match>
+
+  <alias binding="same">
+    <family>emoji</family>
+    <prefer>
+      <family>Noto Color Emoji</family>
+    </prefer>
+  </alias>
+</fontconfig>
diff --git a/tests/test-layout.c b/tests/test-layout.c
index 62aba460..3ea3063d 100644
--- a/tests/test-layout.c
+++ b/tests/test-layout.c
@@ -109,22 +109,22 @@ install_fonts (const char *dir)
 {
   FcConfig *config;
   PangoFontMap *map;
+  char *path;
+  gsize len;
   char *conf;
 
   map = g_object_new (PANGO_TYPE_CAIRO_FC_FONT_MAP, NULL);
 
   config = FcConfigCreate ();
 
-  conf = g_strdup_printf ("<?xml version=\"1.0\"?>\n"
-                          "<!DOCTYPE fontconfig SYSTEM \"urn:fontconfig:fonts.dtd\">\n"
-                          "<fontconfig>\n"
-                          "  <cachedir>%s/cache</cachedir>\n"
-                          "</fontconfig>", dir);
+  path = g_test_build_filename (G_TEST_DIST, "fonts/fonts.conf", NULL);
+  g_file_get_contents (path, &conf, &len, NULL);
 
   if (!FcConfigParseAndLoadFromMemory (config, (const FcChar8 *) conf, TRUE))
     g_error ("Failed to parse fontconfig configuration");
 
   g_free (conf);
+  g_free (path);
 
   FcConfigAppFontAddDir (config, (const FcChar8 *) dir);
   pango_fc_font_map_set_config (PANGO_FC_FONT_MAP (map), config);
@@ -150,7 +150,6 @@ main (int argc, char *argv[])
   };
 
   setlocale (LC_ALL, "");
-
   option_context = g_option_context_new ("");
   g_option_context_add_main_entries (option_context, entries, NULL);
   g_option_context_set_ignore_unknown_options (option_context, TRUE);