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diff --git a/compiler/exo/src/Pass/FuseReluPass.test.cpp b/compiler/exo/src/Pass/FuseReluPass.test.cpp
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+++ b/compiler/exo/src/Pass/FuseReluPass.test.cpp
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+/*
+ * Copyright (c) 2019 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 "FuseReluPass.h"
+
+#include "Dialect/IR/TFLNodes.h"
+#include "TestGraph.h"
+
+#include <loco.h>
+#include <logo/RemoveDeadNodePass.h>
+
+#include <gtest/gtest.h>
+
+#include <type_traits> // for std::is_same
+
+namespace
+{
+
+void init(loco::Pull *pull)
+{
+  pull->dtype(loco::DataType::FLOAT32);
+  pull->shape({2, 3, 3, 2});
+}
+
+/// @brief Initializes TFLConv2D and related filter and bias
+void init(locoex::TFLConv2D *conv2d, locoex::TFLConst *filter, locoex::TFLConst *bias)
+{
+  // set conv2d
+  {
+    conv2d->fusedActivationFunction(locoex::FusedActFunc::NONE);
+    conv2d->padding(locoex::Padding::VALID);
+  }
+
+  // set filter
+  {
+    filter->dtype(loco::DataType::FLOAT32);
+    filter->shape({2, 3, 3, 2});
+    filter->size<loco::DataType::FLOAT32>(2 * 3 * 3 * 2);
+
+    for (uint32_t x = 0; x < 2 * 3 * 3 * 2; x++)
+      filter->at<loco::DataType::FLOAT32>(x) = 0.0;
+  }
+
+  // set bias
+  {
+    bias->dtype(loco::DataType::FLOAT32);
+    bias->shape({2});
+    bias->size<loco::DataType::FLOAT32>(2);
+
+    for (uint32_t x = 0; x < 2; x++)
+      bias->at<loco::DataType::FLOAT32>(x) = 0.0;
+  }
+}
+
+} // namespace
+
+/// Test code called by TEST(..)
+/// This tests whether Conv2D - FusedTFLType is fused.
+template <class FusedTFLType, locoex::FusedActFunc FusedActFunc> void test()
+{
+  static_assert((std::is_same<FusedTFLType, locoex::TFLRelu>::value &&
+                 FusedActFunc == locoex::FusedActFunc::RELU) ||
+                    (std::is_same<FusedTFLType, locoex::TFLRelu6>::value &&
+                     FusedActFunc == locoex::FusedActFunc::RELU6),
+                "wrong template type");
+
+  exo::test::TestGraph g;
+  {
+    auto filter = g.append<locoex::TFLConst>();
+    auto bias = g.append<locoex::TFLConst>();
+    auto conv2d = g.append<locoex::TFLConv2D>(g.pull, filter, bias);
+
+    auto fusable_node = g.append<FusedTFLType>(conv2d);
+
+    g.complete(fusable_node);
+
+    init(g.pull);
+    init(conv2d, filter, bias);
+  }
+
+  // let's run fusion
+  {
+    exo::test::TypeShapeReadyPhase test_phase;
+
+    test_phase.add_pass<exo::FuseReluPass>();
+    test_phase.add_pass<logo::RemoveDeadNodePass>(); // to remove TFLRelu
+    test_phase.run(g.graph());
+  }
+
+  auto a_conv2d = exo::test::find_first_node_bytype<locoex::TFLConv2D>(g.graph());
+  ASSERT_TRUE(a_conv2d != nullptr);
+  ASSERT_TRUE(a_conv2d->fusedActivationFunction() == FusedActFunc);
+
+  auto removed_fusable_node = exo::test::find_first_node_bytype<FusedTFLType>(g.graph());
+  ASSERT_TRUE(removed_fusable_node == nullptr);
+}
+
+// A case with Conv2D-Relu
+TEST(FuseReluTest, Conv2D_Relu_basic) { test<locoex::TFLRelu, locoex::FusedActFunc::RELU>(); }
+
+// A case with Conv2D-Relu6
+TEST(FuseReluTest, Conv2D_Relu6_basic) { test<locoex::TFLRelu6, locoex::FusedActFunc::RELU6>(); }