IVGCVSW-7828 Add an Optional TensorInfo to InputSlot

 * Updated calls to use the new function
   From:
   GetInputSlot(n).GetConnection()->GetTensorInfo();
   To:
   GetInputSlot(n).GetTensorInfo();
 * Added UnitTests

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: I43184cc05e4472011b9347aaa820eb8deb1cd4a0

1 files changed, 50 insertions, 0 deletions

diff --git a/src/armnn/test/LayerTests.cpp b/src/armnn/test/LayerTests.cpp
new file mode 100644
index 0000000000..3e9184e3be
--- /dev/null
+++ b/src/armnn/test/LayerTests.cpp
@@ -0,0 +1,50 @@
+//
+// Copyright © 2023 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include <Network.hpp>
+#include <doctest/doctest.h>
+#include <armnn/utility/PolymorphicDowncast.hpp>
+
+namespace
+{
+
+TEST_SUITE("Layer")
+{
+
+TEST_CASE("InputSlotGetTensorInfo")
+{
+    armnn::NetworkImpl net;
+    armnn::IConnectableLayer* add = net.AddElementwiseBinaryLayer(armnn::BinaryOperation::Add);
+    armnn::IConnectableLayer* out = net.AddOutputLayer(0);
+
+    armnn::Layer* addlayer = armnn::PolymorphicDowncast<armnn::Layer*>(add);
+    armnn::Layer* outlayer = armnn::PolymorphicDowncast<armnn::Layer*>(out);
+
+    auto outTensorInfo = armnn::TensorInfo({1,2,2,1}, armnn::DataType::Float32);
+    addlayer->GetOutputSlot(0).Connect(outlayer->GetInputSlot(0));
+    CHECK_FALSE(outlayer->GetInputSlot(0).IsTensorInfoSet());
+
+    addlayer->GetOutputSlot(0).SetTensorInfo(outTensorInfo);
+    auto testTensorInfo = outlayer->GetInputSlot(0).GetTensorInfo();
+
+    CHECK_EQ(outTensorInfo, testTensorInfo);
+    CHECK(outlayer->GetInputSlot(0).IsTensorInfoSet());
+    CHECK_FALSE(outlayer->GetInputSlot(0).IsTensorInfoOverridden());
+
+    auto overRiddenTensorInfo = armnn::TensorInfo({2,2}, armnn::DataType::Float32);
+    outlayer->GetInputSlot(0).SetTensorInfo(overRiddenTensorInfo);
+    testTensorInfo = outlayer->GetInputSlot(0).GetTensorInfo();
+
+    // Confirm that inputslot TensorInfo is changed
+    CHECK_EQ(overRiddenTensorInfo, testTensorInfo);
+    // Confirm that outputslot TensorInfo is unchanged
+    CHECK_EQ(outTensorInfo, outlayer->GetInputSlot(0).GetConnection()->GetTensorInfo());
+
+    CHECK(outlayer->GetInputSlot(0).IsTensorInfoOverridden());
+}
+
+}
+
+}