diff -r 872ae61c8945 -r 6d7aa8a1a3b3 test/array_tests.c
--- a/test/array_tests.c	Thu Jul 04 21:31:45 2019 +0200
+++ b/test/array_tests.c	Thu Jul 04 22:23:15 2019 +0200
@@ -151,19 +151,17 @@
     
     UCX_TEST_BEGIN
     
-    UCX_TEST_ASSERT(ucx_array_equals(a1, a2, ucx_cmp_int, NULL) == 0, "failed");
-    UCX_TEST_ASSERT(ucx_array_equals(a1, a4, ucx_cmp_int, NULL) > 0, "failed");
-    UCX_TEST_ASSERT(ucx_array_equals(a4, a1, ucx_cmp_int, NULL) < 0, "failed");
-    UCX_TEST_ASSERT(ucx_array_equals(a1, a3, ucx_cmp_int, NULL) < 0,
-            "comparing arrays of different element size failed");
-    UCX_TEST_ASSERT(ucx_array_equals(a3, a1, ucx_cmp_int, NULL) > 0,
-            "comparing arrays of different element size failed");
+    UCX_TEST_ASSERT(ucx_array_equals(a1, a2, ucx_cmp_int, NULL), "failed");
+    UCX_TEST_ASSERT(!ucx_array_equals(a1, a4, ucx_cmp_int, NULL), "failed");
+    UCX_TEST_ASSERT(!ucx_array_equals(a4, a1, ucx_cmp_int, NULL), "failed");
+    UCX_TEST_ASSERT(!ucx_array_equals(a1, a3, ucx_cmp_int, NULL),
+            "comparing arrays of different element size shall fail");
+    UCX_TEST_ASSERT(!ucx_array_equals(a3, a1, ucx_cmp_int, NULL),
+            "comparing arrays of different element size shall fail");
     
-    UCX_TEST_ASSERT(ucx_array_equals(a1, a2, NULL, NULL) == 0,
+    UCX_TEST_ASSERT(ucx_array_equals(a1, a2, NULL, NULL),
             "compare using memcmp() failed");
-    UCX_TEST_ASSERT(ucx_array_equals(a1, a4, NULL, NULL) > 0,
-            "compare using memcmp() failed");
-    UCX_TEST_ASSERT(ucx_array_equals(a4, a1, NULL, NULL) < 0,
+    UCX_TEST_ASSERT(!ucx_array_equals(a1, a4, NULL, NULL),
             "compare using memcmp() failed");
     
     UCX_TEST_END
@@ -337,11 +335,11 @@
     UCX_TEST_BEGIN
 
     UCX_TEST_ASSERT(array.data != copy.data, "no true copy");
-    UCX_TEST_ASSERT(ucx_array_equals(array, copy, ucx_cmp_int, NULL), "failed");
     UCX_TEST_ASSERT(array.size == copy.size, "size mismatch");
     UCX_TEST_ASSERT(array.capacity == copy.capacity, "capacity mismatch");
     UCX_TEST_ASSERT(array.elemsize == copy.elemsize, "element size mismatch");
     UCX_TEST_ASSERT(array.allocator == copy.allocator, "allocator mismatch");
+    UCX_TEST_ASSERT(ucx_array_equals(array, copy, ucx_cmp_int, NULL), "failed");
     
     UCX_TEST_END
 
@@ -369,10 +367,22 @@
 
     UCX_TEST_BEGIN
     void* original_ptr = array.data;
-    UCX_TEST_ASSERT(!ucx_array_sort(array, ucx_cmp_int, NULL), "failed");
-    UCX_TEST_ASSERT(!ucx_array_equals(array, expected, NULL, NULL), "failed");
+    ucx_array_sort(array, ucx_cmp_int, NULL);
+    UCX_TEST_ASSERT(ucx_array_equals(array, expected, NULL, NULL), "failed");
     UCX_TEST_ASSERT(array.size == 5, "size corrupted");
     UCX_TEST_ASSERT(array.data == original_ptr, "shall not reallocate");
+                
+    ucx_array_reserve(&array, 32);
+    ucx_array_reserve(&expected, 32);
+    array.size = expected.size = 32;
+    for (size_t i = 0 ; i < 32 ; i++) {
+        ucx_array_at_int(array, i) = ((i%2==0)?-1:1) * ((int) i);
+        ucx_array_at_int(expected, i) = (-30+2*i) - (i > 15 ? 1 : 0);
+    }
+    
+    ucx_array_sort(array, ucx_cmp_int, NULL);
+    UCX_TEST_ASSERT(ucx_array_equals(array, expected, NULL, NULL),
+            "failed for bigger arrays");
     UCX_TEST_END
 
     ucx_array_free(&expected);