[glib/halfline-no-spawn] tests: More probing

[Ray Strode <halfline src gnome org>]

commit 1bd986c84319f8bd1f8f5c3f93f1e6a456c68591
Author: Ray Strode <rstrode redhat com>
Date:   Tue Oct 18 14:41:59 2022 -0400

    tests: More probing

 gio/tests/file.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/gio/tests/file.c b/gio/tests/file.c
index ccac590a41..adf3f6e118 100644
--- a/gio/tests/file.c
+++ b/gio/tests/file.c
@@ -3535,6 +3535,7 @@ test_query_zero_length_content_type (void)
   GFileInfo *file_info;
   GError *error = NULL;
   GFileIOStream *iostream;
+  goffset size;
 
   g_test_bug ("https://bugzilla.gnome.org/show_bug.cgi?id=755795";);
   /* This is historic behaviour. See:
@@ -3556,6 +3557,11 @@ test_query_zero_length_content_type (void)
                        NULL, &error);
   g_assert_no_error (error);
 
+  g_test_message ("empty file has content type %s", g_file_info_get_content_type (file_info));
+
+  size = g_file_info_get_size (file_info);
+  g_assert_cmpint (size, ==, 0);
+
   g_assert_cmpstr (g_file_info_get_content_type (file_info), ==, "text/plain");
 
   g_clear_object (&file_info);