IVGCVSW-3221 Refactor Mean ref workload and tests

 * Renamed RefMeanFloat32Workload and RefMeanUint8Workload
   to RefMeanWorkload, updated references to reflect this
   change.
 * Refactored RefFloorWorkload to use Decoders/Encoders,
   to support the use of multiple data types.
 * Deleted reference Unit8 Mean tests as they were
   duplicates of the Float32 tests. Refactored these tests
   to support multiple data types and updated references.
 * Adjusted the values used in the tests' input tensors so
   that they are more like floating point numbers
   e.g. change 1.0f to 1.5f.
 * Replace size_t with unsigned int in Mean ref workload,
   for better compatibility with the Encoder/Decoder,
   removed some unnecessary casts after this.
 * Added ValidateTensorDataTypesMatch() function to
   WorkloadData.cpp, added CreateIncorrectDimensionsErrorMsg
   function to RefLayerSupport.cpp.
 * Added passing and failing tests for ref IsMeanSupported.

Signed-off-by: James Conroy <james.conroy@arm.com>
Change-Id: Id3d44463d1385255c727a497d4026d21a49e7eb2

1 files changed, 25 insertions, 0 deletions

diff --git a/src/backends/reference/test/RefLayerSupportTests.cpp b/src/backends/reference/test/RefLayerSupportTests.cpp
index 2c7e17da43..0d99b3e66f 100644
--- a/src/backends/reference/test/RefLayerSupportTests.cpp
+++ b/src/backends/reference/test/RefLayerSupportTests.cpp
@@ -14,6 +14,7 @@
 #include <backendsCommon/test/IsLayerSupportedTestImpl.hpp>
 
 #include <boost/test/unit_test.hpp>
+#include <boost/algorithm/string/trim.hpp>
 
 #include <string>
 
@@ -130,4 +131,28 @@ BOOST_AUTO_TEST_CASE(IsConvertFp32ToFp16SupportedFp32OutputReference)
     BOOST_CHECK_EQUAL(reasonIfUnsupported, "Layer is not supported with float32 data type output");
 }
 
+BOOST_AUTO_TEST_CASE(IsLayerSupportedMeanDimensionsReference)
+{
+    std::string reasonIfUnsupported;
+
+    bool result = IsMeanLayerSupportedTests<armnn::RefWorkloadFactory,
+            armnn::DataType::Float32, armnn::DataType::Float32>(reasonIfUnsupported);
+
+    BOOST_CHECK(result);
+}
+
+BOOST_AUTO_TEST_CASE(IsLayerNotSupportedMeanDimensionsReference)
+{
+    std::string reasonIfUnsupported;
+
+    bool result = IsMeanLayerNotSupportedTests<armnn::RefWorkloadFactory,
+            armnn::DataType::Float32, armnn::DataType::Float32>(reasonIfUnsupported);
+
+    BOOST_CHECK(!result);
+
+    boost::algorithm::trim(reasonIfUnsupported);
+    BOOST_CHECK_EQUAL(reasonIfUnsupported,
+                      "Reference Mean: Expected 4 dimensions but got 2 dimensions instead, for the 'output' tensor.");
+}
+
 BOOST_AUTO_TEST_SUITE_END()