diff -r aa465fac4ef6 -r afd87df80b13 test/util_allocator.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/util_allocator.h	Sun Sep 26 14:41:16 2021 +0200
@@ -0,0 +1,90 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef UCX_UTIL_ALLOCATOR_H
+#define UCX_UTIL_ALLOCATOR_H
+
+#include "cx/allocator.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CX_TESTING_ALLOCATOR_MAX_LIVE 1024
+
+typedef struct {
+    /**
+     * Total number of all allocations (malloc, calloc, realloc).
+     * A realloc() does only count when the memory has to be moved.
+     */
+    int alloc_total;
+    /**
+     * Number of failed allocations (malloc, calloc, realloc).
+     */
+    int alloc_failed;
+    /**
+     * Total number of freed pointers.
+     * A reallocation also counts as a free when the memory has to be moved.
+     */
+    int free_total;
+    /**
+     * Number of failed free invocations.
+     * A free() is considered failed, if it has not been performed on tracked memory.
+     */
+    int free_failed;
+    /**
+     * Number of memory blocks that are currently live (and tracked).
+     * The maximum number of tracked blocks is defined in #CX_TESTING_ALLOCATOR_MAX_LIVE.
+     */
+    int live;
+    /**
+     * The array of tracked memory blocks.
+     */
+    void *tracked[CX_TESTING_ALLOCATOR_MAX_LIVE];
+} cx_testing_allocator_s;
+
+extern CxAllocator cxTestingAllocator;
+
+/**
+ * Resets the testing allocator information.
+ * This function SHOULD be called prior to any use of this allocator.
+ */
+void cxTestingAllocatorReset(void);
+
+/**
+ * Checks whether all allocated memory is properly freed and no failed (de)allocations happened.
+ *
+ * @return true on success, false if there was any problem
+ */
+int cxTestingAllocatorVerify(void);
+
+#ifdef __cplusplus
+}; /* extern "C" */
+#endif
+
+#endif /* UCX_UTIL_ALLOCATOR_H */