separate testing environment

-Separate main for running unit tests
-Move unit tests into testing folder

Engine/source/testing/threadPoolTest.cpp

@@ -0,0 +1,118 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2014 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// 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. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "testing/unitTesting.h"
+#include "platform/threads/threadPool.h"
+#include "console/console.h"
+#include "core/util/tVector.h"
+
+FIXTURE(ThreadPool)
+{
+public:
+   // Represents a single unit of work. In this test we just set an element in
+   // a result vector.
+   struct TestItem : public ThreadPool::WorkItem
+   {
+      U32 mIndex;
+      Vector<U32>& mResults;
+      TestItem(U32 index, Vector<U32>& results)
+         : mIndex(index), mResults(results) {}
+
+   protected:
+      virtual void execute()
+      {
+         mResults[mIndex] = mIndex;
+      }
+   };
+
+   // A worker that delays for some time. We'll use this to test the ThreadPool's
+   // synchronous and asynchronous operations.
+   struct DelayItem : public ThreadPool::WorkItem
+   {
+      U32 ms;
+      DelayItem(U32 _ms) : ms(_ms) {}
+
+   protected:
+      virtual void execute()
+      {
+         Platform::sleep(ms);
+      }
+   };
+};
+
+TEST_FIX(ThreadPool, BasicAPI)
+{
+   // Construct the vector of results from the work items.
+   const U32 numItems = 100;
+   Vector<U32> results(__FILE__, __LINE__);
+   results.setSize(numItems);
+   for (U32 i = 0; i < numItems; i++)
+      results[i] = U32(-1);
+
+   // Launch the work items.
+   ThreadPool* pool = &ThreadPool::GLOBAL();
+   for (U32 i = 0; i < numItems; i++)
+   {
+      ThreadSafeRef<TestItem> item(new TestItem(i, results));
+      pool->queueWorkItem(item);
+   }
+
+   pool->waitForAllItems();
+
+   // Verify.
+   for (U32 i = 0; i < numItems; i++)
+      EXPECT_EQ(results[i], i) << "result mismatch";
+   results.clear();
+}
+
+TEST_FIX(ThreadPool, Asynchronous)
+{
+   const U32 delay = 500; //ms
+
+   // Launch a single delaying work item.
+   ThreadPool* pool = &ThreadPool::GLOBAL();
+   ThreadSafeRef<DelayItem> item(new DelayItem(delay));
+   pool->queueWorkItem(item);
+
+   // The thread should not yet be finished.
+   EXPECT_EQ(false, item->hasExecuted());
+
+   // Wait til the item should have completed.
+   Platform::sleep(delay * 2);
+
+   EXPECT_EQ(true, item->hasExecuted());
+}
+
+TEST_FIX(ThreadPool, Synchronous)
+{
+   const U32 delay = 500; //ms
+
+   // Launch a single delaying work item.
+   ThreadPool* pool = &ThreadPool::GLOBAL();
+   ThreadSafeRef<DelayItem> item(new DelayItem(delay));
+   pool->queueWorkItem(item);
+
+   // Wait for the item to complete.
+   pool->waitForAllItems();
+
+   EXPECT_EQ(true, item->hasExecuted());
+}