1 files changed, 70 insertions, 0 deletions
diff --git a/compiler/coco/core/src/IR/Part.test.cpp b/compiler/coco/core/src/IR/Part.test.cpp
new file mode 100644
index 000000000..87e0e1516
--- /dev/null
+++ b/compiler/coco/core/src/IR/Part.test.cpp
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. 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 "coco/IR/Part.h"
+#include "coco/IR/Op.h"
+
+#include <stdex/Memory.h>
+
+#include <gtest/gtest.h>
+
+using stdex::make_unique;
+
+namespace
+{
+namespace mock
+{
+
+// TODO Inherit UnaryOp instead of Op
+struct Op final : public coco::Op
+{
+public:
+  Op() : _arg{this}
+  {
+    // DO NOTHING
+  }
+
+public:
+  uint32_t arity(void) const final { return 1; }
+  coco::Op *arg(uint32_t n) const final { return arg(); }
+
+  std::set<coco::Object *> uses() const override { throw std::runtime_error{"Not supported"}; }
+
+public:
+  ::coco::Op *arg(void) const { return _arg.child(); }
+  void arg(::coco::Op *child) { _arg.child(child); }
+
+private:
+  coco::Part _arg;
+};
+
+} // namespace mock
+} // namespace
+
+TEST(PartTest, destructor)
+{
+  auto parent = make_unique<::mock::Op>();
+  auto child = make_unique<::mock::Op>();
+
+  parent->arg(child.get());
+  ASSERT_EQ(parent->arg(), child.get());
+  ASSERT_EQ(child->up(), parent.get());
+
+  parent.reset();
+
+  // NOTE parent SHOULD unlink itself from child on destruction
+  ASSERT_EQ(child->up(), nullptr);
+}