[grilo-plugins] tests: Do not leak missing keys in spotify

[Victor Toso de Carvalho <victortoso src gnome org>]

commit 85ac986410cd54d8985c943b5c94aa80579b0e66
Author: Victor Toso <me victortoso com>
Date:   Wed Feb 22 23:02:24 2017 +0100

    tests: Do not leak missing keys in spotify
    
    24 bytes in 1 blocks are definitely lost in loss record 1,235 of 3,381
       at 0x4C2DB9D: malloc (vg_replace_malloc.c:299)
       by 0x4E895B8: g_malloc (in /usr/lib64/libglib-2.0.so.0.5000.3)
       by 0x4EA1B12: g_slice_alloc (in /usr/lib64/libglib-2.0.so.0.5000.3)
       by 0x4E7F9E5: g_list_prepend (in /usr/lib64/libglib-2.0.so.0.5000.3)
       by 0x9372497: grl_lua_factory_source_may_resolve (grl-lua-factory.c:1717)
       by 0x53BBC13: grl_source_may_resolve (grl-source.c:3464)
       by 0x401C00: test_may_resolve_missing_key (test_spotify_cover.c:112)
    
    48 (24 direct, 24 indirect) bytes in 1 blocks are definitely lost in loss record 2,010 of 3,381
       at 0x4C2DB9D: malloc (vg_replace_malloc.c:299)
       by 0x4E895B8: g_malloc (in /usr/lib64/libglib-2.0.so.0.5000.3)
       by 0x4EA1B12: g_slice_alloc (in /usr/lib64/libglib-2.0.so.0.5000.3)
       by 0x4E7FE19: g_list_copy_deep (in /usr/lib64/libglib-2.0.so.0.5000.3)
       by 0x93724D4: grl_lua_factory_source_may_resolve (grl-lua-factory.c:1696)
       by 0x53BBC13: grl_source_may_resolve (grl-source.c:3464)
       by 0x401A7B: test_may_resolve_missing_media (test_spotify_cover.c:133)
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779444

 tests/spotify-cover/test_spotify_cover.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/tests/spotify-cover/test_spotify_cover.c b/tests/spotify-cover/test_spotify_cover.c
index 9bcdac3..ef87eae 100644
--- a/tests/spotify-cover/test_spotify_cover.c
+++ b/tests/spotify-cover/test_spotify_cover.c
@@ -116,6 +116,7 @@ test_may_resolve_missing_key (void)
   g_assert (GRLPOINTER_TO_KEYID (missing_keys->data) == GRL_METADATA_KEY_ALBUM);
 
   g_object_unref (media);
+  g_list_free (missing_keys);
 }
 
 static void
@@ -139,6 +140,7 @@ test_may_resolve_missing_media (void)
   g_assert (GRLPOINTER_TO_KEYID (missing_keys->next->data) == GRL_METADATA_KEY_ARTIST ||
             GRLPOINTER_TO_KEYID (missing_keys->next->data) == GRL_METADATA_KEY_ALBUM);
   g_assert (GRLPOINTER_TO_KEYID (missing_keys->data) != GRLPOINTER_TO_KEYID (missing_keys->next->data));
+  g_list_free (missing_keys);
 }
 
 static void