diff --git a/tests/ExecuteNetwork/ExecuteNetwork.cpp b/tests/ExecuteNetwork/ExecuteNetwork.cpp
index ba7ce29..be341b6 100644
--- a/tests/ExecuteNetwork/ExecuteNetwork.cpp
+++ b/tests/ExecuteNetwork/ExecuteNetwork.cpp
@@ -88,57 +88,50 @@
         if (params.m_InputTypes[inputIndex].compare("float") == 0)
         {
             auto inputData = tfLiteInterpreter->typed_tensor<float>(input);
-            TContainer tensorData;
-            PopulateTensorWithData(tensorData,
-                                   params.m_InputTensorShapes[inputIndex]->GetNumElements(),
-                                   params.m_InputTypes[inputIndex],
-                                   armnn::EmptyOptional(),
-                                   dataFile);
+            std::vector<float> tensorData;
+            PopulateTensorWithDataGeneric<float>(tensorData,
+                                                  params.m_InputTensorShapes[inputIndex]->GetNumElements(),
+                                                  dataFile,
+                                                  [](const std::string& s)
+                                                  { return std::stof(s); });
 
-            mapbox::util::apply_visitor([&](auto&& value)
-            {
-                for (unsigned int i = 0; i < inputSize; ++i)
-                {
-                    inputData[i] = value.data()[i];
-                }
-            },
-            tensorData);
+            std::copy(tensorData.begin(), tensorData.end(), inputData);
+        }
+        else if (params.m_InputTypes[inputIndex].compare("int8") == 0)
+        {
+            auto inputData = tfLiteInterpreter->typed_tensor<int8_t>(input);
+            std::vector<int8_t> tensorData;
+            PopulateTensorWithDataGeneric<int8_t>(tensorData,
+                                                  params.m_InputTensorShapes[inputIndex]->GetNumElements(),
+                                                  dataFile,
+                                                  [](const std::string& s)
+                                                  { return armnn::numeric_cast<int8_t>(std::stoi(s)); });
+
+            std::copy(tensorData.begin(), tensorData.end(), inputData);
         }
         else if (params.m_InputTypes[inputIndex].compare("int") == 0)
         {
             auto inputData = tfLiteInterpreter->typed_tensor<int32_t>(input);
-            TContainer tensorData;
-            PopulateTensorWithData(tensorData,
-                                   params.m_InputTensorShapes[inputIndex]->GetNumElements(),
-                                   params.m_InputTypes[inputIndex],
-                                   armnn::EmptyOptional(),
-                                   dataFile);
-            mapbox::util::apply_visitor([&](auto&& value)
-            {
-                for (unsigned int i = 0; i < inputSize; ++i)
-                {
-                    inputData[i] = value.data()[i];
-                }
-            },
-            tensorData);
+            std::vector<int32_t> tensorData;
+            PopulateTensorWithDataGeneric<int32_t>(tensorData,
+                                                   params.m_InputTensorShapes[inputIndex]->GetNumElements(),
+                                                   dataFile,
+                                                   [](const std::string& s)
+                                                   { return std::stoi(s); });
+
+            std::copy(tensorData.begin(), tensorData.end(), inputData);
         }
         else if (params.m_InputTypes[inputIndex].compare("qasymm8") == 0)
         {
             auto inputData = tfLiteInterpreter->typed_tensor<uint8_t>(input);
-            TContainer tensorData;
-            PopulateTensorWithData(tensorData,
-                                   params.m_InputTensorShapes[inputIndex]->GetNumElements(),
-                                   params.m_InputTypes[inputIndex],
-                                   armnn::EmptyOptional(),
-                                   dataFile);
-            mapbox::util::apply_visitor([&](auto&& value)
-            {
-                for (unsigned int i = 0; i < inputSize; ++i)
-                {
-                    inputData[i] = value.data()[i];
-                }
-            },
-            tensorData);
+            std::vector<uint8_t> tensorData;
+            PopulateTensorWithDataGeneric<uint8_t>(tensorData,
+                                                   params.m_InputTensorShapes[inputIndex]->GetNumElements(),
+                                                   dataFile,
+                                                   [](const std::string& s)
+                                                   { return armnn::numeric_cast<uint8_t>(std::stoi(s)); });
+
+            std::copy(tensorData.begin(), tensorData.end(), inputData);
         }
         else
         {
@@ -203,6 +196,25 @@
                     }
                 }
             }
+            else if (params.m_OutputTypes[outputIndex].compare("int8") == 0)
+            {
+                auto tfLiteDelageOutputData = tfLiteInterpreter->typed_tensor<int8_t>(tfLiteDelegateOutputId);
+                if(tfLiteDelageOutputData == NULL)
+                {
+                    ARMNN_LOG(fatal) << "Output tensor is null, output type: "
+                                        "\"" << params.m_OutputTypes[outputIndex] << "\" may be incorrect.";
+                    return EXIT_FAILURE;
+                }
+
+                for (int i = 0; i < outputSize; ++i)
+                {
+                    std::cout << signed(tfLiteDelageOutputData[i]) << ", ";
+                    if (i % 60 == 0)
+                    {
+                        std::cout << std::endl;
+                    }
+                }
+            }
             else if (params.m_OutputTypes[outputIndex].compare("qasymm8") == 0)
             {
                 auto tfLiteDelageOutputData = tfLiteInterpreter->typed_tensor<uint8_t>(tfLiteDelegateOutputId);
diff --git a/tests/NetworkExecutionUtils/NetworkExecutionUtils.cpp b/tests/NetworkExecutionUtils/NetworkExecutionUtils.cpp
index 3e7c87d..2afd941 100644
--- a/tests/NetworkExecutionUtils/NetworkExecutionUtils.cpp
+++ b/tests/NetworkExecutionUtils/NetworkExecutionUtils.cpp
@@ -25,36 +25,6 @@
 #include "armnnOnnxParser/IOnnxParser.hpp"
 #endif
 
-
-template<typename T, typename TParseElementFunc>
-std::vector<T> ParseArrayImpl(std::istream& stream, TParseElementFunc parseElementFunc, const char* chars = "\t ,:")
-{
-    std::vector<T> result;
-    // Processes line-by-line.
-    std::string line;
-    while (std::getline(stream, line))
-    {
-        std::vector<std::string> tokens = armnn::stringUtils::StringTokenizer(line, chars);
-        for (const std::string& token : tokens)
-        {
-            if (!token.empty()) // See https://stackoverflow.com/questions/10437406/
-            {
-                try
-                {
-                    result.push_back(parseElementFunc(token));
-                }
-                catch (const std::exception&)
-                {
-                    ARMNN_LOG(error) << "'" << token << "' is not a valid number. It has been ignored.";
-                }
-            }
-        }
-    }
-
-    return result;
-}
-
-
 template<armnn::DataType NonQuantizedType>
 auto ParseDataArray(std::istream& stream);
 
diff --git a/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp b/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
index 9d9e616..742f968 100644
--- a/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
+++ b/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
@@ -7,10 +7,13 @@
 
 #include <armnn/IRuntime.hpp>
 #include <armnn/Types.hpp>
+#include <armnn/Logging.hpp>
+#include <armnn/utility/StringUtils.hpp>
 
 #include <mapbox/variant.hpp>
 
 #include <iostream>
+#include <fstream>
 
 
 std::vector<unsigned int> ParseArray(std::istream& stream);
@@ -68,4 +71,51 @@
  * @param expectFile bool - If true, checks for a regular file.
  * @return bool - True if all given strings are valid paths., false otherwise.
  * */
-bool ValidatePaths(const std::vector<std::string>& fileVec, const bool expectFile);
\ No newline at end of file
+bool ValidatePaths(const std::vector<std::string>& fileVec, const bool expectFile);
+
+template<typename T, typename TParseElementFunc>
+std::vector<T> ParseArrayImpl(std::istream& stream, TParseElementFunc parseElementFunc, const char* chars = "\t ,:")
+{
+    std::vector<T> result;
+    // Processes line-by-line.
+    std::string line;
+    while (std::getline(stream, line))
+    {
+        std::vector<std::string> tokens = armnn::stringUtils::StringTokenizer(line, chars);
+        for (const std::string& token : tokens)
+        {
+            if (!token.empty()) // See https://stackoverflow.com/questions/10437406/
+            {
+                try
+                {
+                    result.push_back(parseElementFunc(token));
+                }
+                catch (const std::exception&)
+                {
+                    ARMNN_LOG(error) << "'" << token << "' is not a valid number. It has been ignored.";
+                }
+            }
+        }
+    }
+
+    return result;
+}
+
+template <typename T, typename TParseElementFunc>
+void PopulateTensorWithDataGeneric(std::vector<T>& tensorData,
+                                   unsigned int numElements,
+                                   const armnn::Optional<std::string>& dataFile,
+                                   TParseElementFunc parseFunction)
+{
+    const bool readFromFile = dataFile.has_value() && !dataFile.value().empty();
+
+    std::ifstream inputTensorFile;
+    if (readFromFile)
+    {
+        inputTensorFile = std::ifstream(dataFile.value());
+    }
+
+    tensorData = readFromFile ?
+                 ParseArrayImpl<T>(inputTensorFile, parseFunction) :
+                 std::vector<T>(numElements, static_cast<T>(0));
+}