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diff --git a/ethosu/vela/test/test_graph_optimiser.py b/ethosu/vela/test/test_graph_optimiser.py
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+# Copyright (C) 2020 Arm Limited or its affiliates. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# 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
+#
+# 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.
+#
+# Description:
+# Unit tests for graph_optimiser
+import numpy as np
+
+from ethosu.vela.graph_optimiser import convert_batched_fc_shape
+from ethosu.vela.operation import Op
+from ethosu.vela.tensor import create_const_tensor
+from ethosu.vela.tensor import Tensor
+from ethosu.vela.test import testutil
+
+
+def test_convert_batched_fc():
+    """Tests shape conversion of batched fully connected"""
+    shape = [4, 8]
+    ifm = create_const_tensor("test_in", shape, np.uint8, np.zeros(shape))
+    weights = create_const_tensor("weight_in", shape, np.uint8, np.zeros(shape))
+    ofm = Tensor(ifm.shape, np.uint8, "test_out")
+    op = testutil.create_op(Op.FullyConnected, [ifm, weights], ofm)
+    ifm.consumer_list.append(op)
+
+    prev_op = op.clone()
+    conv_op = convert_batched_fc_shape(op, None, None)
+
+    assert conv_op.ifm != prev_op.ifm
+    assert conv_op.ofm != prev_op.ofm
+    assert conv_op.type == Op.FullyConnected
+    assert len(conv_op.ifm.shape) == 4
+    assert conv_op.ifm.shape == conv_op.ofm.shape
+    assert conv_op.ifm.ops[0].type == Op.Reshape
+
+    shape = [1, 8]
+    ifm.shape = shape
+    weights.shape = shape
+    ofm.shape = shape
+    op = testutil.create_op(Op.FullyConnected, [ifm, weights], ofm)
+    ifm.consumer_list.append(op)
+
+    prev_op = op.clone()
+    conv_op = convert_batched_fc_shape(op, None, None)
+
+    assert conv_op.ifm == prev_op.ifm
+    assert conv_op.ofm == prev_op.ofm
+    assert conv_op.type == Op.FullyConnected
+    assert len(conv_op.ifm.shape) == 2
+    assert conv_op.ifm.shape == conv_op.ofm.shape