UnitTest: redesing to avoid #include ".cpp" in Xcode

Each unit test .cpp file is not a separate compilation unit in Xcode project
like it is in Visual Studio. Hopefully, Visual Studio test tool still likes
this arrangement.

Signed-off-by: Simon Rozman <simon@rozman.si>

UnitTests/pool.cpp

@@ -12,31 +12,25 @@ using namespace Microsoft::VisualStudio::CppUnitTestFramework;
 
 namespace UnitTests
 {
-	constexpr size_t pool_capacity = 50;
-
-	TEST_CLASS(pool)
+	void pool::test()
 	{
-	public:
-		TEST_METHOD(test)
-		{
-			using worker_t = unique_ptr<int>;
-			using pool_t = stdex::pool<worker_t>;
-			pool_t pool;
-			list<thread> workers;
-			for (auto n = thread::hardware_concurrency(); n--; ) {
-				workers.push_back(thread([](_Inout_ pool_t& pool)
-				{
-					for (size_t n = 10000; n--; ) {
-						worker_t el = pool.pop();
-						if (!el)
-							el.reset(new int(1));
-						pool.push(std::move(el));
-					}
-				}, ref(pool)));
-			}
-
-			for (auto& w : workers)
-				w.join();
+		using worker_t = unique_ptr<int>;
+		using pool_t = stdex::pool<worker_t>;
+		pool_t pool;
+		list<thread> workers;
+		for (auto n = thread::hardware_concurrency(); n--; ) {
+			workers.push_back(thread([](_Inout_ pool_t& pool)
+			{
+				for (size_t n = 10000; n--; ) {
+					worker_t el = pool.pop();
+					if (!el)
+						el.reset(new int(1));
+					pool.push(std::move(el));
+				}
+			}, ref(pool)));
 		}
-	};
+
+		for (auto& w : workers)
+			w.join();
+	}
 }