diff --git a/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp b/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp
index fa6ec10..ff632fc 100644
--- a/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp
+++ b/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp
@@ -633,5 +633,34 @@
     return result;
 }
 
+// Tests that IsMeanSupported fails when input tensor dimensions
+// do not match output tensor dimensions when keepDims == true
+template<typename FactoryType, armnn::DataType InputDataType , armnn::DataType OutputDataType>
+bool IsMeanLayerNotSupportedTests(std::string& reasonIfUnsupported)
+{
+    armnn::Graph graph;
+    static const std::vector<unsigned> axes = {};
+    // Set keepDims == true
+    armnn::MeanDescriptor desc(axes, true);
+
+    armnn::Layer* const layer = graph.AddLayer<armnn::MeanLayer>(desc, "LayerName");
+
+    armnn::Layer* const input = graph.AddLayer<armnn::InputLayer>(0, "input");
+    armnn::Layer* const output = graph.AddLayer<armnn::OutputLayer>(0, "output");
+
+    // Mismatching number of tensor dimensions
+    armnn::TensorInfo inputTensorInfo({1, 1, 1, 1}, InputDataType);
+    armnn::TensorInfo outputTensorInfo({1, 1}, OutputDataType);
+
+    input->GetOutputSlot(0).Connect(layer->GetInputSlot(0));
+    input->GetOutputHandler(0).SetTensorInfo(inputTensorInfo);
+    layer->GetOutputSlot(0).Connect(output->GetInputSlot(0));
+    layer->GetOutputHandler(0).SetTensorInfo(outputTensorInfo);
+
+    bool result = FactoryType::IsLayerSupported(*layer, InputDataType, reasonIfUnsupported);
+
+    return result;
+}
+
 
 } //namespace