Unit test refactor (#500)

Refactoring and consolidating single-process / multi-process unit testing

test/common/PrepDataFuncs.hpp

@@ -0,0 +1,26 @@
+ /*************************************************************************
+ * Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * See LICENSE.txt for license information
+ ************************************************************************/
+#pragma once
+#include "ErrCode.hpp"
+
+namespace RcclUnitTesting
+{
+  class CollectiveArgs;
+
+  // Checks that enough memory has been allocated
+  ErrCode CheckAllocation(CollectiveArgs const& collArgs);
+
+  // Default PrepareData functions
+  // PrepareData functions are responsible for setting up input / expected for the given collArgs
+  ErrCode DefaultPrepareDataFunc(CollectiveArgs &collArgs);
+  ErrCode DefaultPrepData_Broadcast(CollectiveArgs &collArgs);
+  ErrCode DefaultPrepData_Reduce(CollectiveArgs &collArgs, bool const isAllReduce);
+  ErrCode DefaultPrepData_Gather(CollectiveArgs &collArgs, bool const isAllGather);
+  ErrCode DefaultPrepData_ReduceScatter(CollectiveArgs &collArgs);
+  ErrCode DefaultPrepData_Scatter(CollectiveArgs &collArgs);
+  ErrCode DefaultPrepData_AllToAll(CollectiveArgs &collArgs);
+  ErrCode DefaultPrepData_SendRecv(CollectiveArgs &collArgs);
+}