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diff --git a/ethosu/tensor_allocator/test/test_tensor_allocator.py b/ethosu/tensor_allocator/test/test_tensor_allocator.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 tensor_allocator.
+from ethosu import tensor_allocator
+
+
+def test_allocate():
+    """Tests the search allocator"""
+    # Create an input that requires a search to produce a perfect allocation.
+    # Should result in size 16016
+    lrs = [(0, 100, 8000), (0, 1, 8016), (100, 110, 2000), (108, 110, 4000), (109, 110, 6000)]
+    input = [x for lr in lrs for x in lr]
+    res = tensor_allocator.allocate(input, 0)
+    assert len(res) == len(lrs)
+    assert max(addr + lr[2] for addr, lr in zip(res, lrs)) == 16016