diff -r d7ca126eab7f -r 4bd19279778c test/test_list.c
--- a/test/test_list.c	Tue Dec 28 14:16:04 2021 +0100
+++ b/test/test_list.c	Tue Dec 28 14:25:05 2021 +0100
@@ -125,6 +125,31 @@
     CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&d, 3, loc_prev, 1), &b)
 }
 
+void test_linked_list_find(void) {
+    int data[] = {2, 4, 6, 8};
+    void *list = create_test_data(4, data);
+    int s;
+
+    s = 2;
+    CU_ASSERT_EQUAL(cx_linked_list_find(list, loc_next, loc_data,
+                                        false, (CxListComparator) cmp_int, &s), 0)
+    s = 4;
+    CU_ASSERT_EQUAL(cx_linked_list_find(list, loc_next, loc_data,
+                                        false, (CxListComparator) cmp_int, &s), 1)
+    s = 6;
+    CU_ASSERT_EQUAL(cx_linked_list_find(list, loc_next, loc_data,
+                                        false, (CxListComparator) cmp_int, &s), 2)
+    s = 8;
+    CU_ASSERT_EQUAL(cx_linked_list_find(list, loc_next, loc_data,
+                                        false, (CxListComparator) cmp_int, &s), 3)
+    s = 10;
+    CU_ASSERT_EQUAL(cx_linked_list_find(list, loc_next, loc_data,
+                                        false, (CxListComparator) cmp_int, &s), 4)
+    s = -2;
+    CU_ASSERT_EQUAL(cx_linked_list_find(list, loc_next, loc_data,
+                                        false, (CxListComparator) cmp_int, &s), 4)
+}
+
 void test_linked_list_compare(void) {
     int a[] = {2, 4, 6, 8};
     int b[] = {2, 4, 6};
@@ -135,19 +160,19 @@
     void *lc = create_test_data(4, c);
 
     CU_ASSERT_TRUE(0 < cx_linked_list_compare(la, lb, loc_next, loc_data,
-                                              0, (CxListComparator) cmp_int)
+                                              false, (CxListComparator) cmp_int)
     )
     CU_ASSERT_TRUE(0 > cx_linked_list_compare(lb, la, loc_next, loc_data,
-                                              0, (CxListComparator) cmp_int)
+                                              false, (CxListComparator) cmp_int)
     )
     CU_ASSERT_TRUE(0 < cx_linked_list_compare(lc, la, loc_next, loc_data,
-                                              0, (CxListComparator) cmp_int)
+                                              false, (CxListComparator) cmp_int)
     )
     CU_ASSERT_TRUE(0 > cx_linked_list_compare(la, lc, loc_next, loc_data,
-                                              0, (CxListComparator) cmp_int)
+                                              false, (CxListComparator) cmp_int)
     )
     CU_ASSERT_TRUE(0 == cx_linked_list_compare(la, la, loc_next, loc_data,
-                                               0, (CxListComparator) cmp_int)
+                                               false, (CxListComparator) cmp_int)
     )
 
     destroy_test_data(la);
@@ -487,7 +512,7 @@
     void *end = cx_linked_list_last(begin, loc_next);
 
     cx_linked_list_sort(&begin, &end, loc_prev, loc_next, loc_data,
-                        0, (CxListComparator) cmp_int);
+                        false, (CxListComparator) cmp_int);
 
     struct node *check = begin;
     struct node *check_last = NULL;
@@ -952,6 +977,7 @@
 
     cu_add_test(suite, test_linked_list_link_unlink);
     cu_add_test(suite, test_linked_list_at);
+    cu_add_test(suite, test_linked_list_find);
     cu_add_test(suite, test_linked_list_compare);
     cu_add_test(suite, test_linked_list_prepend);
     cu_add_test(suite, test_linked_list_add);