From ca565c1b04b767abfc13a59146680663a3ea4008 Mon Sep 17 00:00:00 2001
From: Sadik Armagan <sadik.armagan@arm.com>
Date: Tue, 16 Aug 2022 12:17:24 +0100
Subject: IVGCVSW-6603 'Add a no fallback mode to the TfLite Delegate'

* Added disable-tflite-runtime-fallback option to armnn_delegate
* Updated armnn_delegate version

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I449b16404d3ffe98e6dac52a43e7c25225addd73
---
 delegate/src/test/DelegateOptionsTest.cpp | 74 ++++++++++++++++++++++++++++++-
 1 file changed, 73 insertions(+), 1 deletion(-)

(limited to 'delegate/src/test/DelegateOptionsTest.cpp')

diff --git a/delegate/src/test/DelegateOptionsTest.cpp b/delegate/src/test/DelegateOptionsTest.cpp
index c9f1530968..50d3f78563 100644
--- a/delegate/src/test/DelegateOptionsTest.cpp
+++ b/delegate/src/test/DelegateOptionsTest.cpp
@@ -150,6 +150,79 @@ TEST_CASE ("ArmnnDelegateOptimizerOptionsImport")
                                 delegateOptions);
 }
 
+TEST_CASE ("ArmnnDelegateStringParsingOptionDisableTfLiteRuntimeFallback")
+{
+    std::stringstream stringStream;
+    std::vector<std::string> keys   {  "backends", "debug-data", "disable-tflite-runtime-fallback"};
+    std::vector<std::string> values {    "CpuRef",          "1",                               "1"};
+
+    std::vector<armnn::BackendId> backends = { armnn::Compute::CpuRef };
+    std::vector<int32_t> tensorShape { 1, 2, 2, 1 };
+    std::vector<float> inputData = { 0.1f, -2.1f, 3.0f, -4.6f };
+    std::vector<float> expectedResult = { 1.0f, -2.0f, 3.0f, -4.0f };
+
+    // Create options_keys and options_values char array
+    size_t num_options = keys.size();
+    std::unique_ptr<const char*> options_keys =
+            std::unique_ptr<const char*>(new const char*[num_options + 1]);
+    std::unique_ptr<const char*> options_values =
+            std::unique_ptr<const char*>(new const char*[num_options + 1]);
+    for (size_t i=0; i<num_options; ++i)
+    {
+        options_keys.get()[i]   = keys[i].c_str();
+        options_values.get()[i] = values[i].c_str();
+    }
+
+    StreamRedirector redirect(std::cout, stringStream.rdbuf());
+
+    armnnDelegate::DelegateOptions delegateOptions(options_keys.get(), options_values.get(), num_options, nullptr);
+    DelegateOptionNoFallbackTest<float>(::tflite::TensorType_FLOAT32,
+                                        backends,
+                                        tensorShape,
+                                        inputData,
+                                        expectedResult,
+                                        delegateOptions);
+    CHECK(stringStream.str().find("TfLiteArmnnDelegate: There are unsupported operators in the model")
+                                                                                                 != std::string::npos);
+}
+
+TEST_CASE ("ArmnnDelegateStringParsingOptionEnableTfLiteRuntimeFallback")
+{
+    std::stringstream stringStream;
+    std::vector<std::string> keys   {  "backends", "debug-data", "disable-tflite-runtime-fallback"};
+    std::vector<std::string> values {    "CpuRef",          "1",                               "0"};
+
+    std::vector<armnn::BackendId> backends = { armnn::Compute::CpuRef };
+    std::vector<int32_t> tensorShape { 1, 2, 2, 1 };
+    std::vector<float> inputData = { 0.1f, -2.1f, 3.0f, -4.6f };
+    std::vector<float> expectedResult = { 1.0f, -2.0f, 3.0f, -4.0f };
+
+    // Create options_keys and options_values char array
+    size_t num_options = keys.size();
+    std::unique_ptr<const char*> options_keys =
+            std::unique_ptr<const char*>(new const char*[num_options + 1]);
+    std::unique_ptr<const char*> options_values =
+            std::unique_ptr<const char*>(new const char*[num_options + 1]);
+    for (size_t i=0; i<num_options; ++i)
+    {
+        options_keys.get()[i]   = keys[i].c_str();
+        options_values.get()[i] = values[i].c_str();
+    }
+
+    StreamRedirector redirect(std::cout, stringStream.rdbuf());
+
+    armnnDelegate::DelegateOptions delegateOptions(options_keys.get(), options_values.get(), num_options, nullptr);
+    DelegateOptionNoFallbackTest<float>(::tflite::TensorType_FLOAT32,
+                                        backends,
+                                        tensorShape,
+                                        inputData,
+                                        expectedResult,
+                                        delegateOptions);
+
+    CHECK(stringStream.str().find("TfLiteArmnnDelegate: There are unsupported operators in the model")
+                                                                                                 == std::string::npos);
+}
+
 }
 
 TEST_SUITE("DelegateOptions_CpuAccTests")
@@ -307,7 +380,6 @@ TEST_CASE ("ArmnnDelegateStringParsingOptionReduceFp32ToFp16")
     }
 }
 
-
 }
 
 } // namespace armnnDelegate
-- 
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