diff -r 2e7050c3a18e -r 69636f81db31 test/list_tests.c
--- a/test/list_tests.c	Sat Dec 31 22:48:28 2011 +0100
+++ b/test/list_tests.c	Wed Jan 04 14:51:54 2012 +0100
@@ -13,20 +13,32 @@
     int i;
 };
 
-int list_tests_foreach1(void *v, void *custom) {
+int int_cmp(void* e1, void *e2, void *data) {
+    if (e1 == NULL || e2 == NULL) return (e1 == e2) ? 0 : -1;
+    
+    int *i1 = (int*)e1, *i2 = (int*)e2;
+    int r = (*i1) - (*i2);
+    return (r < 0) ? -1 : (r == 0 ? 0 : 1);
+}
+
+int dlist_tests_foreach(void *v, void *custom) {
     UcxDlist *dl = (UcxDlist*)v;
     struct test1_data *tdata = (struct test1_data*)custom;
 
     tdata->values[tdata->i] = *(int*)dl->data;
     tdata->i++;
+    
+    return 0;
 }
 
-int list_tests_foreach2(void *v, void *custom) {
+int list_tests_foreach(void *v, void *custom) {
     UcxList *dl = (UcxList*)v;
     struct test1_data *tdata = (struct test1_data*)custom;
 
     tdata->values[tdata->i] = *(int*)dl->data;
     tdata->i++;
+    
+    return 0;
 }
 
 int dlist_tests() {
@@ -73,14 +85,45 @@
 
     struct test1_data tdata;
     tdata.i = 0;
-    ucx_dlist_foreach(dl, list_tests_foreach1, &tdata);
+    ucx_dlist_foreach(dl, dlist_tests_foreach, &tdata);
 
     if(tdata.values[0] != 4 || tdata.values[1] != 0 || tdata.values[2] != 4) {
         fprintf(stderr, "prepend/append test failed\n");
-        fprintf(stderr, "content: [%d, %d, %d]\n", tdata.values[0], tdata.values[1], tdata.values[2]);
+        fprintf(stderr, "content: [%d, %d, %d]\n",
+                tdata.values[0], tdata.values[1], tdata.values[2]);
         r--;
     }
 
+    printf("   Test ucx_dlist_equals\n");
+    UcxDlist *dl2 = NULL;
+    dl2 = ucx_dlist_append(dl2, &v[4]);
+    dl2 = ucx_dlist_append(dl2, &v[0]);
+    dl2 = ucx_dlist_append(dl2, &v[4]);
+    if (!ucx_dlist_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_dlist_equals failed (false negative)\n");
+    }
+    dl2->next->data = NULL;
+    if (ucx_dlist_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_dlist_equals failed (false positive)\n");
+    }
+    dl2->next->data = &(tdata.values[1]);
+    if (!ucx_dlist_equals(dl, dl2, int_cmp, NULL)) {
+        fprintf(stderr, "ucx_dlist_equals failed (cmp_func false negative)\n");
+    }
+    if (ucx_dlist_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_dlist_equals failed (cmp_func false positive)\n");
+    }
+    ucx_dlist_free(dl2);
+    
+    printf("   Test ucx_dlist_clone\n");
+    dl2 = ucx_dlist_clone(dl, NULL, NULL);
+    if (!ucx_dlist_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_dlist_clone (without copy) failed\n");
+    }
+    ucx_dlist_free(dl2);
+    
+    printf("   TODO: test clone with copy\n");
+
     return r;
 }
 
@@ -128,13 +171,44 @@
 
     struct test1_data tdata;
     tdata.i = 0;
-    ucx_list_foreach(dl, list_tests_foreach1, &tdata);
+    ucx_list_foreach(dl, list_tests_foreach, &tdata);
 
     if(tdata.values[0] != 4 || tdata.values[1] != 0 || tdata.values[2] != 4) {
         fprintf(stderr, "prepend/append test failed\n");
-        fprintf(stderr, "content: [%d, %d, %d]\n", tdata.values[0], tdata.values[1], tdata.values[2]);
+        fprintf(stderr, "content: [%d, %d, %d]\n",
+                tdata.values[0], tdata.values[1], tdata.values[2]);
         r--;
     }
+    
+    printf("   Test ucx_list_equals\n");
+    UcxList *dl2 = NULL;
+    dl2 = ucx_list_append(dl2, &v[4]);
+    dl2 = ucx_list_append(dl2, &v[0]);
+    dl2 = ucx_list_append(dl2, &v[4]);
+    if (!ucx_list_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_list_equals failed (false negative)\n");
+    }
+    dl2->next->data = NULL;
+    if (ucx_list_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_list_equals failed (false positive)\n");
+    }
+    dl2->next->data = &(tdata.values[1]);
+    if (!ucx_list_equals(dl, dl2, int_cmp, NULL)) {
+        fprintf(stderr, "ucx_list_equals failed (cmp_func false negative)\n");
+    }
+    if (ucx_list_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_list_equals failed (cmp_func false positive)\n");
+    }
+    ucx_list_free(dl2);
+    
+    printf("   Test ucx_list_clone\n");
+    dl2 = ucx_list_clone(dl, NULL, NULL);
+    if (!ucx_list_equals(dl, dl2, NULL, NULL)) {
+        fprintf(stderr, "ucx_list_clone (without copy) failed\n");
+    }
+    ucx_list_free(dl2);
+    
+    printf("   TODO: test clone with copy\n");
 
     return r;
 }