diff --git a/test/tests.c b/test/tests.c
index b52a13c..4e4cc13 100644
--- a/test/tests.c
+++ b/test/tests.c
@@ -54,6 +54,12 @@ int test_object(void) {
 	check(parse("{\"a\": {2}}", JSMN_ERROR_INVAL, 3));
 	check(parse("{\"a\": {2: 3}}", JSMN_ERROR_INVAL, 3));
 	check(parse("{\"a\": {\"a\": 2 3}}", JSMN_ERROR_INVAL, 5));
+	check(parse("{\"a\"}", JSMN_ERROR_INVAL, 2));
+	check(parse("{\"a\": 1, \"b\"}", JSMN_ERROR_INVAL, 4));
+	check(parse("{\"a\",\"b\":1}", JSMN_ERROR_INVAL, 4));
+	check(parse("{\"a\":1,}", JSMN_ERROR_INVAL, 4));
+	check(parse("{\"a\":\"b\":\"c\"}", JSMN_ERROR_INVAL, 4));
+	check(parse("{,}", JSMN_ERROR_INVAL, 4));
 #endif
 	return 0;
 }