1 files changed, 40 insertions, 19 deletions
diff --git a/tests/test57.c b/tests/test57.c
index 3b89fb52d..7ba3b81ae 100644
--- a/tests/test57.c
+++ b/tests/test57.c
@@ -1,5 +1,5 @@
-#include <stdio.h>
-#include <stdlib.h>
+#include <assert.h>
+#include <stddef.h>
 #include "uthash.h"
 
 typedef struct {
@@ -8,25 +8,46 @@ typedef struct {
     UT_hash_handle hh;
 } el_t;
 
+el_t *findit(el_t *hash, void *keytofind)
+{
+    el_t *found;
+    HASH_FIND_PTR(hash, &keytofind, found);
+    return found;
+}
+
 int main()
 {
-    el_t *d;
     el_t *hash = NULL;
-    char *someaddr = NULL;
-    el_t *e = (el_t*)malloc(sizeof(el_t));
-    if (!e) {
-        return -1;
-    }
-    e->key = (void*)someaddr;
-    e->i = 1;
-    HASH_ADD_PTR(hash,key,e);
-    HASH_FIND_PTR(hash, &someaddr, d);
-    if (d != NULL) {
-        printf("found\n");
-    }
-
-    /* release memory */
-    HASH_DEL(hash,e);
-    free(e);
+    el_t e1;
+    el_t e2;
+
+    e1.key = NULL;
+    e1.i = 1;
+
+    e2.key = &e2;
+    e2.i = 2;
+
+    assert(findit(hash, NULL) == NULL);
+    assert(findit(hash, &e1) == NULL);
+    assert(findit(hash, &e2) == NULL);
+
+    HASH_ADD_PTR(hash, key, &e1);
+    assert(findit(hash, NULL) == &e1);
+    assert(findit(hash, &e1) == NULL);
+    assert(findit(hash, &e2) == NULL);
+
+    HASH_ADD_PTR(hash, key, &e2);
+    assert(findit(hash, NULL) == &e1);
+    assert(findit(hash, &e1) == NULL);
+    assert(findit(hash, &e2) == &e2);
+
+    HASH_DEL(hash, &e1);
+    assert(findit(hash, NULL) == NULL);
+    assert(findit(hash, &e1) == NULL);
+    assert(findit(hash, &e2) == &e2);
+
+    HASH_CLEAR(hh, hash);
+    assert(hash == NULL);
+
     return 0;
 }