From 16d64a99b42171f201496a33f987fb687e3dabb1 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Thu, 19 Jun 2014 12:45:00 +0600
Subject: Add unit tests for aligned alloc

This was really handy on initial work of aligned alloc
and would be handy as well when we'll need to support
arbitrary alignment on Apple platforms.
---
 tests/gtests/CMakeLists.txt                        |  1 +
 tests/gtests/guardedalloc/CMakeLists.txt           | 36 +++++++++++++++++
 .../guardedalloc/guardedalloc_alignment_test.cc    | 47 ++++++++++++++++++++++
 3 files changed, 84 insertions(+)
 create mode 100644 tests/gtests/guardedalloc/CMakeLists.txt
 create mode 100644 tests/gtests/guardedalloc/guardedalloc_alignment_test.cc

(limited to 'tests/gtests')

diff --git a/tests/gtests/CMakeLists.txt b/tests/gtests/CMakeLists.txt
index 2ab62fa05b0..317f030a658 100644
--- a/tests/gtests/CMakeLists.txt
+++ b/tests/gtests/CMakeLists.txt
@@ -9,5 +9,6 @@ if(WITH_GTESTS)
 
 	add_subdirectory(testing)
 	add_subdirectory(blenlib)
+	add_subdirectory(guardedalloc)
 endif()
 
diff --git a/tests/gtests/guardedalloc/CMakeLists.txt b/tests/gtests/guardedalloc/CMakeLists.txt
new file mode 100644
index 00000000000..c09f8729ab0
--- /dev/null
+++ b/tests/gtests/guardedalloc/CMakeLists.txt
@@ -0,0 +1,36 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# The Original Code is Copyright (C) 2014, Blender Foundation
+# All rights reserved.
+#
+# Contributor(s): Sergey Sharybin
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(INC
+	.
+	../
+	../../../intern/guardedalloc
+)
+
+include_directories(${INC})
+
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${PLATFORM_LINKFLAGS}")
+set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${PLATFORM_LINKFLAGS_DEBUG}")
+
+
+BLENDER_TEST(guardedalloc_alignment "")
diff --git a/tests/gtests/guardedalloc/guardedalloc_alignment_test.cc b/tests/gtests/guardedalloc/guardedalloc_alignment_test.cc
new file mode 100644
index 00000000000..34c47738276
--- /dev/null
+++ b/tests/gtests/guardedalloc/guardedalloc_alignment_test.cc
@@ -0,0 +1,47 @@
+#include "testing/testing.h"
+
+#include "MEM_guardedalloc.h"
+
+#define CHECK_ALIGNMENT(ptr, align) EXPECT_EQ(0, (size_t)ptr % align)
+
+namespace {
+
+void DoBasicAlignmentChecks(const int alignment) {
+  int *foo, *bar;
+
+  foo = (int *) MEM_mallocN_aligned(sizeof(int) * 10, alignment, "test");
+  CHECK_ALIGNMENT(foo, alignment);
+
+  bar = (int *) MEM_dupallocN(foo);
+  CHECK_ALIGNMENT(bar, alignment);
+  MEM_freeN(bar);
+
+  foo = (int *) MEM_reallocN(foo, sizeof(int) * 5);
+  CHECK_ALIGNMENT(foo, alignment);
+
+  foo = (int *) MEM_recallocN(foo, sizeof(int) * 5);
+  CHECK_ALIGNMENT(foo, alignment);
+
+  MEM_freeN(foo);
+}
+
+}  // namespace
+
+TEST(guardedalloc, LockfreeAlignedAlloc16) {
+  DoBasicAlignmentChecks(16);
+}
+
+TEST(guardedalloc, GuardedAlignedAlloc16) {
+  MEM_use_guarded_allocator();
+  DoBasicAlignmentChecks(16);
+}
+
+// On Apple we currently support 16 bit alignment only.
+// Harmless for Blender, but would be nice to support
+// eventually.
+#ifndef __APPLE__
+TEST(guardedalloc, GuardedAlignedAlloc32) {
+  MEM_use_guarded_allocator();
+  DoBasicAlignmentChecks(16);
+}
+#endif
-- 
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