[gtk/improve-css-test-4.6: 2/2] tests: Check the error first

[Matthias Clasen <matthiasc src gnome org>]

commit 746f3fbf4d53c3cba2b12e31206aad9705fab488
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Aug 11 07:18:39 2022 -0400

    tests: Check the error first
    
    The error contains useful information when
    things fail, so check it first to get useful
    output in case of failure.

 testsuite/css/data.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/testsuite/css/data.c b/testsuite/css/data.c
index 3a5b722fd0..60cc2661cc 100644
--- a/testsuite/css/data.c
+++ b/testsuite/css/data.c
@@ -81,8 +81,8 @@ test_parse (gconstpointer data)
 
   if (test->contents)
     {
-      g_assert_nonnull (bytes);
       g_assert_no_error (error);
+      g_assert_nonnull (bytes);
       if (test->mimetype == NULL)
         g_assert_null (mimetype);
       else
@@ -94,8 +94,8 @@ test_parse (gconstpointer data)
     }
   else
     {
-      g_assert_null (bytes);
       g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_FILENAME);
+      g_assert_null (bytes);
       g_error_free (error);
     }
 }