separate testing environment

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

Engine/source/testing/mutexTest.cpp

@@ -0,0 +1,70 @@
+//-----------------------------------------------------------------------------
+// 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.
+//-----------------------------------------------------------------------------
+
+#ifdef TORQUE_TESTS_ENABLED
+#include "testing/unitTesting.h"
+#include "platform/threads/mutex.h"
+#include "platform/threads/thread.h"
+
+TEST(Mutex, BasicSynchronization)
+{
+   // We test various scenarios wrt to locking and unlocking, in a single
+   // thread, just to make sure our basic primitives are working in the
+   // most basic case.
+   void *mutex1 = Mutex::createMutex();
+   EXPECT_TRUE(mutex1 != NULL)
+      << "First Mutex::createMutex call failed - that's pretty bad!";
+
+   // This mutex is intentionally unused.
+   void *mutex2 = Mutex::createMutex();
+   EXPECT_TRUE(mutex2 != NULL)
+      << "Second Mutex::createMutex call failed - that's pretty bad, too!";
+
+   EXPECT_TRUE(Mutex::lockMutex(mutex1, false))
+      << "Nonblocking call to brand new mutex failed - should not be.";
+   EXPECT_TRUE(Mutex::lockMutex(mutex1, true))
+      << "Failed relocking a mutex from the same thread - should be able to do this.";
+
+   // Try to acquire the mutex from another thread.
+   struct thread
+   {
+      static void body(void* mutex)
+      {
+         // We should not be able to lock the mutex from a separate thread, but
+         // we don't want to block either.
+         EXPECT_FALSE(Mutex::lockMutex(mutex, false));
+      }
+   };
+   Thread thread(&thread::body, mutex1);
+   thread.start();
+   thread.join();
+
+   // Unlock & kill mutex 1
+   Mutex::unlockMutex(mutex1);
+   Mutex::unlockMutex(mutex1);
+   Mutex::destroyMutex(mutex1);
+
+   // Kill mutex2, which was never touched.
+   Mutex::destroyMutex(mutex2);
+}
+
+#endif