Compression: Improve test failure output

Signed-off-by: Stephen Gallagher <[email protected]>

Author: sgallagher

modulemd/tests/test-modulemd-compression.c

@@ -140,13 +140,15 @@ test_modulemd_detect_compression (void)
       filename = g_strdup_printf ("%s/compression/%s",
                                   g_getenv ("TEST_DATA_PATH"),
                                   expected_magic[j].filename);
+      g_debug ("Getting compression type for %s", filename);
       filestream = g_fopen (filename, "rbe");
       g_assert_nonnull (filestream);
       fd = fileno (filestream);
-      g_assert_cmpint (modulemd_detect_compression (filename, fd, &error),
+      result = modulemd_detect_compression (filename, fd, &error);
+      g_assert_no_error (error);
+      g_assert_cmpint (result,
                        ==,
                        expected_magic[j].type);
-      g_assert_no_error (error);
       g_clear_error (&error);
       g_clear_pointer (&filestream, fclose);
       g_clear_pointer (&filename, g_free);