check-qdict: Tighten qdict_crumple_test_recursive() some

Consistently check for unexpected QDict entries, and qdict_get_qdict()
success.  The latter doesn't tighten the test, it only makes it fail
more nicely.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1487363905-9480-4-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

tests/check-qdict.c

@@ -615,26 +615,31 @@ static void qdict_crumple_test_recursive(void)
 
     vnc = qdict_get_qdict(dst, "vnc");
     g_assert(vnc);
+    g_assert_cmpint(qdict_size(vnc), ==, 3);
 
     listen = qdict_get_qdict(vnc, "listen");
     g_assert(listen);
+    g_assert_cmpint(qdict_size(listen), ==, 2);
     g_assert_cmpstr("127.0.0.1", ==, qdict_get_str(listen, "addr"));
     g_assert_cmpstr("5901", ==, qdict_get_str(listen, "port"));
 
     acl = qdict_get_qdict(vnc, "acl");
     g_assert(acl);
+    g_assert_cmpint(qdict_size(acl), ==, 3);
 
     rules = qdict_get_qlist(acl, "rules");
     g_assert(rules);
     g_assert_cmpint(qlist_size(rules), ==, 2);
 
     rule = qobject_to_qdict(qlist_pop(rules));
+    g_assert(rule);
     g_assert_cmpint(qdict_size(rule), ==, 2);
     g_assert_cmpstr("fred", ==, qdict_get_str(rule, "match"));
     g_assert_cmpstr("allow", ==, qdict_get_str(rule, "policy"));
     QDECREF(rule);
 
     rule = qobject_to_qdict(qlist_pop(rules));
+    g_assert(rule);
     g_assert_cmpint(qdict_size(rule), ==, 2);
     g_assert_cmpstr("bob", ==, qdict_get_str(rule, "match"));
     g_assert_cmpstr("deny", ==, qdict_get_str(rule, "policy"));