1 files changed, 132 insertions, 0 deletions
diff --git a/Tests/TestApp/src/RingBufferTest.cpp b/Tests/TestApp/src/RingBufferTest.cpp
new file mode 100644
index 0000000..9ab5dad
--- /dev/null
+++ b/Tests/TestApp/src/RingBufferTest.cpp
@@ -0,0 +1,132 @@
+/*     Copyright 2015-2017 Egor Yusov
+ *  
+ *  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
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+// EngineSandbox.cpp : Defines the entry point for the application.
+//
+
+#include "pch.h"
+#include "RingBuffer.h"
+#include "DefaultRawMemoryAllocator.h"
+#include "DebugUtilities.h"
+
+using namespace Diligent;
+
+class RingBufferTest
+{
+public:
+    RingBufferTest();
+};
+
+static RingBufferTest TheRingBufferTest;
+
+RingBufferTest::RingBufferTest()
+{
+    auto &Allocator = DefaultRawMemoryAllocator::GetAllocator();
+    {
+        RingBuffer RB(1024, Allocator);
+
+        auto Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == 0);
+
+        Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == 256);
+
+        RB.FinishCurrentFrame(0);
+
+        Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == 512);
+
+        Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == 768);
+
+        RB.FinishCurrentFrame(1);
+        VERIFY_EXPR(RB.IsFull());
+
+        Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == RingBuffer::InvalidOffset);
+
+        RingBuffer RB1(std::move(RB));
+        RB1.ReleaseCompletedFrames(2);
+        VERIFY_EXPR(RB1.IsEmpty());
+
+        VERIFY_EXPR(RB1.GetUsedSize() == 0);
+        
+        Offset = RB1.Allocate(256);
+        VERIFY_EXPR(Offset == 0);
+        
+        Offset = RB1.Allocate(256);
+        VERIFY_EXPR(Offset == 256);
+        RB1.FinishCurrentFrame(2);
+        RB1.ReleaseCompletedFrames(3);
+        
+        VERIFY_EXPR(RB1.GetUsedSize() == 0);
+        VERIFY_EXPR(RB1.IsEmpty());
+
+        Offset = RB1.Allocate(256);
+        VERIFY_EXPR(Offset == 512);
+
+        Offset = RB1.Allocate(512);
+        VERIFY_EXPR(Offset == 0);
+
+        VERIFY_EXPR(RB1.IsFull());
+        Offset = RB1.Allocate(1);
+        VERIFY_EXPR(Offset == RingBuffer::InvalidOffset);
+        RB1.FinishCurrentFrame(3);
+
+        RB = std::move(RB1);
+        RB.ReleaseCompletedFrames(4);
+        VERIFY_EXPR(RB.GetUsedSize() == 0);
+        VERIFY_EXPR(RB.IsEmpty());
+
+        Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == 512);
+        Offset = RB.Allocate(512+1);
+        VERIFY_EXPR(Offset == RingBuffer::InvalidOffset);
+        Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == 768);
+        Offset = RB.Allocate(256);
+        VERIFY_EXPR(Offset == 0);
+        Offset = RB.Allocate(256+1);
+        VERIFY_EXPR(Offset == RingBuffer::InvalidOffset);
+        RB.FinishCurrentFrame(5);
+        RB.ReleaseCompletedFrames(6);
+    }
+
+    {
+        RingBuffer RB(1024, Allocator);
+        auto offset = RB.Allocate(512);
+        RB.FinishCurrentFrame(0);
+        RB.FinishCurrentFrame(1);
+        RB.ReleaseCompletedFrames(2);
+        RB.FinishCurrentFrame(2);
+        RB.FinishCurrentFrame(3);
+        offset = RB.Allocate(512);
+        RB.FinishCurrentFrame(4);
+        RB.ReleaseCompletedFrames(3);
+        RB.ReleaseCompletedFrames(4);
+        RB.ReleaseCompletedFrames(5);
+        offset = RB.Allocate(512);
+        RB.FinishCurrentFrame(5);
+        RB.ReleaseCompletedFrames(6);
+    }
+}