[pango] Try harder to skip tests on MacOs

[Matthias Clasen <matthiasc src gnome org>]

commit 2a253d9bc76c0333e424aa0200a212b3fc57ab33
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jul 10 19:03:21 2021 -0400

    Try harder to skip tests on MacOs
    
    For tests where the wrong fonts break things,
    check that we have Cantarell, and skip them
    if not.

 tests/test-itemize.c | 24 ++++++++++++++++++++++++
 tests/test-layout.c  | 24 ++++++++++++++++++++++++
 2 files changed, 48 insertions(+)
---
diff --git a/tests/test-itemize.c b/tests/test-itemize.c
index 52556284..0a8515b8 100644
--- a/tests/test-itemize.c
+++ b/tests/test-itemize.c
@@ -236,6 +236,9 @@ test_itemize (gconstpointer d)
   GError *error = NULL;
   GString *dump;
   gchar *diff;
+  PangoFontFamily **families;
+  int n_families;
+  gboolean found_cantarell;
 
   char *old_locale = g_strdup (setlocale (LC_ALL, NULL));
   setlocale (LC_ALL, "en_US.UTF-8");
@@ -250,6 +253,27 @@ test_itemize (gconstpointer d)
 
   context = pango_font_map_create_context (pango_cairo_font_map_get_default ());
 
+  found_cantarell = FALSE;
+  pango_context_list_families (context, &families, &n_families);
+  for (int i = 0; i < n_families; i++)
+    {
+      if (strcmp (pango_font_family_get_name (families[i]), "Cantarell") == 0)
+        {
+          found_cantarell = TRUE;
+          break;
+        }
+    }
+  g_free (families);
+
+  if (!found_cantarell)
+    {
+      char *msg = g_strdup_printf ("Cantarell font not available, skipping itemization %s", filename);
+      g_test_skip (msg);
+      g_free (msg);
+      g_free (old_locale);
+      return;
+    }
+
   expected_file = get_expected_filename (filename);
 
   dump = g_string_sized_new (0);
diff --git a/tests/test-layout.c b/tests/test-layout.c
index 1e531031..8a1054b4 100644
--- a/tests/test-layout.c
+++ b/tests/test-layout.c
@@ -703,6 +703,9 @@ test_layout (gconstpointer d)
   GError *error = NULL;
   GString *dump;
   gchar *diff;
+  PangoFontFamily **families;
+  int n_families;
+  gboolean found_cantarell;
 
   char *old_locale = g_strdup (setlocale (LC_ALL, NULL));
   setlocale (LC_ALL, "en_US.UTF-8");
@@ -718,6 +721,27 @@ test_layout (gconstpointer d)
   if (context == NULL)
     context = pango_font_map_create_context (pango_cairo_font_map_get_default ());
 
+  found_cantarell = FALSE;
+  pango_context_list_families (context, &families, &n_families);
+  for (int i = 0; i < n_families; i++)
+    {
+      if (strcmp (pango_font_family_get_name (families[i]), "Cantarell") == 0)
+        {
+          found_cantarell = TRUE;
+          break;
+        }
+    }
+  g_free (families);
+
+  if (!found_cantarell)
+    {
+      char *msg = g_strdup_printf ("Cantarell font not available, skipping itemization %s", filename);
+      g_test_skip (msg);
+      g_free (msg);
+      g_free (old_locale);
+      return;
+    }
+
   expected_file = get_expected_filename (filename);
 
   dump = g_string_sized_new (0);