1 files changed, 55 insertions, 0 deletions
diff --git a/test/core/gpr/alloc_test.cc b/test/core/gpr/alloc_test.cc
new file mode 100644
index 0000000000..6074c6e6e7
--- /dev/null
+++ b/test/core/gpr/alloc_test.cc
@@ -0,0 +1,55 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include "test/core/util/test_config.h"
+
+static void* fake_malloc(size_t size) { return (void*)size; }
+
+static void* fake_realloc(void* addr, size_t size) { return (void*)size; }
+
+static void fake_free(void* addr) { *((intptr_t*)addr) = (intptr_t)0xdeadd00d; }
+
+static void test_custom_allocs() {
+  const gpr_allocation_functions default_fns = gpr_get_allocation_functions();
+  intptr_t addr_to_free = 0;
+  char* i;
+  gpr_allocation_functions fns = {fake_malloc, nullptr, fake_realloc,
+                                  fake_free};
+
+  gpr_set_allocation_functions(fns);
+  GPR_ASSERT((void*)(size_t)0xdeadbeef == gpr_malloc(0xdeadbeef));
+  GPR_ASSERT((void*)(size_t)0xcafed00d == gpr_realloc(nullptr, 0xcafed00d));
+
+  gpr_free(&addr_to_free);
+  GPR_ASSERT(addr_to_free == (intptr_t)0xdeadd00d);
+
+  /* Restore and check we don't get funky values and that we don't leak */
+  gpr_set_allocation_functions(default_fns);
+  GPR_ASSERT((void*)sizeof(*i) !=
+             (i = static_cast<char*>(gpr_malloc(sizeof(*i)))));
+  GPR_ASSERT((void*)2 != (i = static_cast<char*>(gpr_realloc(i, 2))));
+  gpr_free(i);
+}
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  test_custom_allocs();
+  return 0;
+}