diff -r 6384016df2a3 -r 8693d7874773 test/mpool_tests.c
--- a/test/mpool_tests.c	Mon Jul 15 15:43:18 2013 +0200
+++ b/test/mpool_tests.c	Mon Jul 15 16:59:52 2013 +0200
@@ -37,7 +37,7 @@
     UCX_TEST_ASSERT(pool->ndata == 0, "uninitialized counter");
     UCX_TEST_ASSERT(pool->data != NULL, "no memory addressed");
     UCX_TEST_END
-    ucx_mempool_free(pool);
+    ucx_mempool_destroy(pool);
 }
 
 UCX_TEST_IMPLEMENT(test_ucx_mempool_malloc) {
@@ -56,7 +56,7 @@
     UCX_TEST_ASSERT(*test == 5, "wrong pointer");
     
     UCX_TEST_END
-    ucx_mempool_free(pool);
+    ucx_mempool_destroy(pool);
 }
 
 UCX_TEST_IMPLEMENT(test_ucx_mempool_malloc_with_chcap) {
@@ -76,7 +76,7 @@
     UCX_TEST_ASSERT(*test == 5, "wrong pointer");
     
     UCX_TEST_END
-    ucx_mempool_free(pool);
+    ucx_mempool_destroy(pool);
 }
 
 UCX_TEST_IMPLEMENT(test_ucx_mempool_calloc) {
@@ -90,7 +90,37 @@
     UCX_TEST_ASSERT(test[0] == 0 && test[1] == 0, "failed");
     
     UCX_TEST_END
-    ucx_mempool_free(pool);
+    ucx_mempool_destroy(pool);
+}
+
+UCX_TEST_IMPLEMENT(test_ucx_mempool_free) {
+    UcxMempool *pool = ucx_mempool_new(16);
+    void *mem1;
+    void *mem2;
+    
+    UCX_TEST_BEGIN
+    
+    mem1 = ucx_mempool_malloc(pool, 16);
+    ucx_mempool_free(pool, mem1);
+    
+    UCX_TEST_ASSERT(pool->ndata == 0, "mempool not empty");
+    
+    ucx_mempool_malloc(pool, 16);
+    ucx_mempool_malloc(pool, 16);
+    mem1 = ucx_mempool_malloc(pool, 16);
+    ucx_mempool_malloc(pool, 16);
+    mem2 = ucx_mempool_malloc(pool, 16);
+    
+    ucx_mempool_free(pool, mem1);
+    
+    UCX_TEST_ASSERT(pool->ndata == 4, "wrong mempool size");
+    
+    ucx_mempool_free(pool, mem2);
+    
+    UCX_TEST_ASSERT(pool->ndata == 3, "wrong mempool size");
+    
+    UCX_TEST_END
+    ucx_mempool_destroy(pool);
 }
 
 void test_setdestr(void* elem) {
@@ -118,7 +148,7 @@
     UCX_TEST_ASSERT(
             test[0] == 5 && test[1] == (intptr_t) cb, "setdestr destroyed data")
     
-    ucx_mempool_free(pool);
+    ucx_mempool_destroy(pool);
     
     UCX_TEST_ASSERT(*cb == 42, "destructor not called");
     
@@ -146,7 +176,7 @@
     
     UCX_TEST_ASSERT(*pooladdr == test_setdestr, "failed");
     
-    ucx_mempool_free(pool);
+    ucx_mempool_destroy(pool);
     UCX_TEST_ASSERT(*cb == 42, "destructor not called");
     UCX_TEST_END
 
@@ -183,7 +213,7 @@
     UCX_TEST_ASSERT(
             test[0] == 5 && test[1] == (intptr_t) cb, "realloc destroyed data")
     
-    ucx_mempool_free(pool);
+    ucx_mempool_destroy(pool);
     
     UCX_TEST_ASSERT(*cb == 42, "destructor not called");