[libmediaart] tests: No new temporary cache directories for subprocess tests

[Yanko Kaneti <yaneti src gnome org>]

commit 2664fa72d671c6b15a4e1924272c29179d900025
Author: Yanko Kaneti <yaneti declera com>
Date:   Thu Nov 13 14:07:29 2014 +0200

    tests: No new temporary cache directories for subprocess tests
    
    Otherwise subprocess tests that assert by design leave those behind

 tests/mediaarttest.c |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)
---
diff --git a/tests/mediaarttest.c b/tests/mediaarttest.c
index 696b6de..cef36c2 100644
--- a/tests/mediaarttest.c
+++ b/tests/mediaarttest.c
@@ -496,17 +496,21 @@ test_mediaart_process_failures_subprocess (void)
 int
 main (int argc, char **argv)
 {
-       const gchar *cache_home_originally;
-       const gchar *temp_cache_dir;
+       const gchar *cache_home_originally = NULL;
+       gchar *temp_cache_dir;
        gchar *dir;
        gint success;
        gint i;
 
        g_test_init (&argc, &argv, NULL);
 
-       temp_cache_dir = g_dir_make_tmp ("libmediaart-tests-XXXXXX", NULL);
-       cache_home_originally = g_getenv ("XDG_CACHE_HOME");
-       g_setenv ("XDG_CACHE_HOME", temp_cache_dir, TRUE);
+       if (!g_test_subprocess ()) {
+               temp_cache_dir = g_dir_make_tmp ("libmediaart-tests-XXXXXX", NULL);
+               cache_home_originally = g_getenv ("XDG_CACHE_HOME");
+               g_setenv ("XDG_CACHE_HOME", temp_cache_dir, TRUE);
+       } else {
+               temp_cache_dir = g_strdup (g_get_user_cache_dir ());
+       }
 
        for (i = 0; strip_test_cases[i].test_name; i++) {
                gchar *testpath;
@@ -548,6 +552,7 @@ main (int argc, char **argv)
                g_unsetenv ("XDG_CACHE_HOME");
        }
        g_rmdir (temp_cache_dir);
+       g_free (temp_cache_dir);
 
        return success;
 }