diff -r fd21d1840dff -r b8c49e7a1dba test/list_tests.c
--- a/test/list_tests.c	Wed May 16 19:33:31 2018 +0200
+++ b/test/list_tests.c	Thu May 17 11:13:02 2018 +0200
@@ -68,27 +68,6 @@
     ucx_list_free(list);
 }
 
-UCX_TEST(test_ucx_list_append_once) {
-    UcxList *list, *first;
-    list = first = ucx_list_append_once(NULL, (void*)"Hello", ucx_cmp_str, NULL);
-    UCX_TEST_BEGIN
-    
-    UCX_TEST_ASSERT(strncmp((const char*)list->data, "Hello", 5) == 0,
-            "failed");
-    
-    list = ucx_list_append_once(list, (void*)"Hello", ucx_cmp_str, NULL);
-    list = ucx_list_append_once(list, (void*)" World!", ucx_cmp_str, NULL);
-    
-    UCX_TEST_ASSERT(list == first, "does not return first element");
-    UCX_TEST_ASSERT(strncmp((const char*)list->next->data, " World!", 7) == 0,
-            "'Hello' was not inserted _once_");
-    UCX_TEST_ASSERT(list->next->prev == list, "failed");
-    UCX_TEST_ASSERT(list->next->next == NULL, "right not terminated");
-    UCX_TEST_END
-    
-    ucx_list_free(list);
-}
-
 UCX_TEST(test_ucx_list_equals) {
     const char *hello = "Hello";
     const char *world = " World!";