BOOST_CHECK (ss.add_decoder(dec, probes,
g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)g_variant_unref)));
BOOST_CHECK (ss.add_decoder(dec, probes,
g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)g_variant_unref)));