IVGCVSW-2193 ExpandDims operation implementation

* Add ExpandDims operation to TfParser.cpp

Change-Id: Ifa756ae0667c11e3b6daec8f6dd4e54cac88d16a
diff --git a/src/armnnTfParser/test/ExpandDims.cpp b/src/armnnTfParser/test/ExpandDims.cpp
new file mode 100644
index 0000000..57d472d
--- /dev/null
+++ b/src/armnnTfParser/test/ExpandDims.cpp
@@ -0,0 +1,112 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include <boost/test/unit_test.hpp>
+#include "armnnTfParser/ITfParser.hpp"
+#include "ParserPrototxtFixture.hpp"
+
+BOOST_AUTO_TEST_SUITE(TensorflowParser)
+
+struct ExpandDimsFixture : public armnnUtils::ParserPrototxtFixture<armnnTfParser::ITfParser>
+{
+    ExpandDimsFixture(const std::string& expandDim)
+    {
+        m_Prototext =
+                "node { \n"
+                "    name: \"graphInput\" \n"
+                "    op: \"Placeholder\" \n"
+                "    attr { \n"
+                "      key: \"dtype\" \n"
+                "      value { \n"
+                "        type: DT_FLOAT \n"
+                "      } \n"
+                "    } \n"
+                "    attr { \n"
+                "      key: \"shape\" \n"
+                "      value { \n"
+                "        shape { \n"
+                "        } \n"
+                "      } \n"
+                "    } \n"
+                "  } \n"
+                "node { \n"
+                "  name: \"ExpandDims\" \n"
+                "  op: \"ExpandDims\" \n"
+                "  input: \"graphInput\" \n"
+                "  attr { \n"
+                "    key: \"T\" \n"
+                "    value { \n"
+                "      type: DT_FLOAT \n"
+                "    } \n"
+                "  } \n"
+                "  attr { \n"
+                "    key: \"Tdim\" \n"
+                "    value { \n";
+            m_Prototext += "i:" + expandDim;
+            m_Prototext +=
+                "    } \n"
+                "  } \n"
+                "} \n";
+
+        SetupSingleInputSingleOutput({ 2, 3, 5 }, "graphInput", "ExpandDims");
+    }
+};
+
+struct ExpandZeroDim : ExpandDimsFixture
+{
+    ExpandZeroDim() : ExpandDimsFixture("0") {}
+};
+
+struct ExpandTwoDim : ExpandDimsFixture
+{
+    ExpandTwoDim() : ExpandDimsFixture("2") {}
+};
+
+struct ExpandThreeDim : ExpandDimsFixture
+{
+    ExpandThreeDim() : ExpandDimsFixture("3") {}
+};
+
+struct ExpandMinusOneDim : ExpandDimsFixture
+{
+    ExpandMinusOneDim() : ExpandDimsFixture("-1") {}
+};
+
+struct ExpandMinusThreeDim : ExpandDimsFixture
+{
+    ExpandMinusThreeDim() : ExpandDimsFixture("-3") {}
+};
+
+BOOST_FIXTURE_TEST_CASE(ParseExpandZeroDim, ExpandZeroDim)
+{
+    BOOST_TEST((m_Parser->GetNetworkOutputBindingInfo("ExpandDims").second.GetShape() ==
+                armnn::TensorShape({1, 2, 3, 5})));
+}
+
+BOOST_FIXTURE_TEST_CASE(ParseExpandTwoDim, ExpandTwoDim)
+{
+    BOOST_TEST((m_Parser->GetNetworkOutputBindingInfo("ExpandDims").second.GetShape() ==
+                armnn::TensorShape({2, 3, 1, 5})));
+}
+
+BOOST_FIXTURE_TEST_CASE(ParseExpandThreeDim, ExpandThreeDim)
+{
+    BOOST_TEST((m_Parser->GetNetworkOutputBindingInfo("ExpandDims").second.GetShape() ==
+                armnn::TensorShape({2, 3, 5, 1})));
+}
+
+BOOST_FIXTURE_TEST_CASE(ParseExpandMinusOneDim, ExpandMinusOneDim)
+{
+    BOOST_TEST((m_Parser->GetNetworkOutputBindingInfo("ExpandDims").second.GetShape() ==
+                armnn::TensorShape({2, 3, 5, 1})));
+}
+
+BOOST_FIXTURE_TEST_CASE(ParseExpandMinusThreeDim, ExpandMinusThreeDim)
+{
+    BOOST_TEST((m_Parser->GetNetworkOutputBindingInfo("ExpandDims").second.GetShape() ==
+                armnn::TensorShape({2, 1, 3, 5})));
+}
+
+BOOST_AUTO_TEST_SUITE_END()