Use weak symbols to inject flex delegates

PiperOrigin-RevId: 215788183

1 files changed, 45 insertions, 0 deletions

diff --git a/tensorflow/contrib/lite/model_flex_test.cc b/tensorflow/contrib/lite/model_flex_test.cc
new file mode 100644
index 0000000000..52e76bee49
--- /dev/null
+++ b/tensorflow/contrib/lite/model_flex_test.cc
@@ -0,0 +1,45 @@
+/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+#include "tensorflow/contrib/lite/model.h"
+
+#include <gtest/gtest.h>
+#include "tensorflow/contrib/lite/kernels/register.h"
+#include "tensorflow/contrib/lite/testing/util.h"
+
+namespace tflite {
+
+// Ensures that a model with TensorFlow ops can be imported as long as the
+// appropriate delegate is linked into the client.
+TEST(FlexModel, WithFlexDelegate) {
+  auto model = FlatBufferModel::BuildFromFile(
+      "tensorflow/contrib/lite/testdata/multi_add_flex.bin");
+  ASSERT_TRUE(model);
+
+  std::unique_ptr<Interpreter> interpreter;
+  ASSERT_EQ(InterpreterBuilder(*model,
+                               ops::builtin::BuiltinOpResolver{})(&interpreter),
+            kTfLiteOk);
+  ASSERT_TRUE(interpreter);
+
+  ASSERT_EQ(interpreter->AllocateTensors(), kTfLiteOk);
+}
+
+}  // namespace tflite
+
+int main(int argc, char** argv) {
+  ::tflite::LogToStderr();
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}