IVGCVSW-6635 Move MemCopyTestImpl from acl to armnnTestUtils.

* Move MemCopyTestImpl.hpp from src/backends/aclCommon/test/ to
  include/armnnTestutils.
* Refactor MemCopyTests in aclCommon, cl and Neon.
* Introduce RefMemCopyTests to exercise this utility in x86 builds.

Signed-off-by: Colm Donelan <colm.donelan@arm.com>
Change-Id: I8824f013d3656658ed0a2904bb79384e3af68641
diff --git a/src/backends/cl/test/ClMemCopyTests.cpp b/src/backends/cl/test/ClMemCopyTests.cpp
index 98b873f..739ea7c 100644
--- a/src/backends/cl/test/ClMemCopyTests.cpp
+++ b/src/backends/cl/test/ClMemCopyTests.cpp
@@ -3,22 +3,42 @@
 // SPDX-License-Identifier: MIT
 //
 
-#include "ClWorkloadFactoryHelper.hpp"
-
+#include <armnnTestUtils/LayerTestResult.hpp>
+#include <armnnTestUtils/MemCopyTestImpl.hpp>
+#include <armnnTestUtils/MockBackend.hpp>
 #include <cl/ClWorkloadFactory.hpp>
-#include <aclCommon/test/MemCopyTestImpl.hpp>
-
-#include <reference/RefWorkloadFactory.hpp>
-#include <reference/test/RefWorkloadFactoryHelper.hpp>
-
+#include <cl/ClBackend.hpp>
 #include <doctest/doctest.h>
 
+namespace
+{
+
+template <>
+struct MemCopyTestHelper<armnn::ClWorkloadFactory>
+{
+    static armnn::IBackendInternal::IMemoryManagerSharedPtr GetMemoryManager()
+    {
+        armnn::ClBackend backend;
+        return backend.CreateMemoryManager();
+    }
+
+    static armnn::ClWorkloadFactory GetFactory(
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+        const armnn::ModelOptions& modelOptions = {})
+    {
+        armnn::ClBackend backend;
+        return armnn::ClWorkloadFactory(armnn::PolymorphicPointerDowncast<armnn::ClMemoryManager>(memoryManager),
+                                        backend.CreateBackendSpecificModelContext(modelOptions));
+    }
+};
+}    // namespace
+
 TEST_SUITE("ClMemCopy")
 {
 TEST_CASE("CopyBetweenCpuAndGpu")
 {
     LayerTestResult<float, 4> result =
-        MemCopyTest<armnn::RefWorkloadFactory, armnn::ClWorkloadFactory, armnn::DataType::Float32>(false);
+        MemCopyTest<armnn::MockWorkloadFactory, armnn::ClWorkloadFactory, armnn::DataType::Float32>(false);
     auto predResult = CompareTensors(result.m_ActualData,  result.m_ExpectedData,
                                      result.m_ActualShape, result.m_ExpectedShape);
     CHECK_MESSAGE(predResult.m_Result, predResult.m_Message.str());
@@ -27,7 +47,7 @@
 TEST_CASE("CopyBetweenGpuAndCpu")
 {
     LayerTestResult<float, 4> result =
-        MemCopyTest<armnn::ClWorkloadFactory, armnn::RefWorkloadFactory, armnn::DataType::Float32>(false);
+        MemCopyTest<armnn::ClWorkloadFactory, armnn::MockWorkloadFactory, armnn::DataType::Float32>(false);
     auto predResult = CompareTensors(result.m_ActualData,  result.m_ExpectedData,
                                      result.m_ActualShape, result.m_ExpectedShape);
     CHECK_MESSAGE(predResult.m_Result, predResult.m_Message.str());
@@ -36,7 +56,7 @@
 TEST_CASE("CopyBetweenCpuAndGpuWithSubtensors")
 {
     LayerTestResult<float, 4> result =
-        MemCopyTest<armnn::RefWorkloadFactory, armnn::ClWorkloadFactory, armnn::DataType::Float32>(true);
+        MemCopyTest<armnn::MockWorkloadFactory, armnn::ClWorkloadFactory, armnn::DataType::Float32>(true);
     auto predResult = CompareTensors(result.m_ActualData,  result.m_ExpectedData,
                                      result.m_ActualShape, result.m_ExpectedShape);
     CHECK_MESSAGE(predResult.m_Result, predResult.m_Message.str());
@@ -45,7 +65,7 @@
 TEST_CASE("CopyBetweenGpuAndCpuWithSubtensors")
 {
     LayerTestResult<float, 4> result =
-        MemCopyTest<armnn::ClWorkloadFactory, armnn::RefWorkloadFactory, armnn::DataType::Float32>(true);
+        MemCopyTest<armnn::ClWorkloadFactory, armnn::MockWorkloadFactory, armnn::DataType::Float32>(true);
     auto predResult = CompareTensors(result.m_ActualData,  result.m_ExpectedData,
                                      result.m_ActualShape, result.m_ExpectedShape);
     CHECK_MESSAGE(predResult.m_Result, predResult.m_Message.str());