1 files changed, 58 insertions, 0 deletions
diff --git a/compiler/nest/core/src/Expr.test.cpp b/compiler/nest/core/src/Expr.test.cpp
new file mode 100644
index 000000000..0c96f7714
--- /dev/null
+++ b/compiler/nest/core/src/Expr.test.cpp
@@ -0,0 +1,58 @@
+/*
+ * 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 "nest/Expr.h"
+
+#include <memory>
+
+#include <gtest/gtest.h>
+
+namespace
+{
+struct DummyNode final : public nest::expr::Node
+{
+};
+}
+
+TEST(EXPR, operator_sum)
+{
+  auto left = std::make_shared<DummyNode>();
+  auto right = std::make_shared<DummyNode>();
+
+  auto expr = left + right;
+
+  ASSERT_NE(expr->asAdd(), nullptr);
+
+  auto add = expr->asAdd();
+
+  ASSERT_EQ(add->lhs().get(), left.get());
+  ASSERT_EQ(add->rhs().get(), right.get());
+}
+
+TEST(EXPR, operator_mul)
+{
+  auto left = std::make_shared<DummyNode>();
+  auto right = std::make_shared<DummyNode>();
+
+  auto expr = left * right;
+
+  ASSERT_NE(expr->asMul(), nullptr);
+
+  auto add = expr->asMul();
+
+  ASSERT_EQ(add->lhs().get(), left.get());
+  ASSERT_EQ(add->rhs().get(), right.get());
+}