diff -r c09da4ee177f -r 320b962afaf9 test/array_tests.c
--- a/test/array_tests.c	Wed Aug 07 19:43:50 2019 +0200
+++ b/test/array_tests.c	Wed Aug 07 20:45:21 2019 +0200
@@ -257,6 +257,30 @@
     ucx_array_free(&a2);    
 }
 
+UCX_TEST(test_ucx_array_at) {
+    UcxArray array = ucx_array_new(16, sizeof(int));
+    
+    int x = 42;
+    ucx_array_append(&array, &x);
+    x = 13;
+    ucx_array_append(&array, &x);
+    x = 5;
+    ucx_array_append(&array, &x);
+    
+    UCX_TEST_BEGIN
+    
+    UCX_TEST_ASSERT(*(int*)ucx_array_at(array, 1) == 13, "failed");
+    *(int*)ucx_array_at(array, 1) = 80;
+    UCX_TEST_ASSERT(*(int*)ucx_array_at(array, 1) == 80, "assignment failed");
+    
+    UCX_TEST_ASSERT(*(int*)ucx_array_at(array, 0) == 42, "corrupted data");
+    UCX_TEST_ASSERT(*(int*)ucx_array_at(array, 2) == 5, "corrupted data");
+    
+    UCX_TEST_END
+    
+    ucx_array_free(&array);
+}
+
 UCX_TEST(test_ucx_array_find) {
     UcxArray array = ucx_array_new(16, sizeof(int));
     int *elems;