[gdk-pixbuf/issue-123: 2/4] tests: Skip tests when the ref format is unsupported

[Emmanuele Bassi <ebassi src gnome org>]

commit b66add27fc11b876962e8d352f77b938858ba2c3
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Apr 2 12:45:10 2020 +0100

    tests: Skip tests when the ref format is unsupported
    
    We must skip the reference test when both the source and reference files
    are unsupported.

 tests/pixbuf-reftest.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
---
diff --git a/tests/pixbuf-reftest.c b/tests/pixbuf-reftest.c
index ac0bb2d46..b760a5e8c 100644
--- a/tests/pixbuf-reftest.c
+++ b/tests/pixbuf-reftest.c
@@ -148,8 +148,16 @@ test_reftest (gconstpointer data)
       return;
     }
 
-  filename = g_file_get_path (file);
   ref_file = make_ref_file (file);
+  if (!file_supported (ref_file))
+    {
+      g_test_skip ("format not supported for reference file");
+      return;
+    }
+
+  filename = g_file_get_path (file);
+
+  g_test_message ("Loading ref file '%s' for test file '%s'", g_file_peek_path (ref_file), filename);
 
   stream = G_INPUT_STREAM (g_file_read (ref_file, NULL, &error));
   g_assert_no_error (error);