Add test for len1_array_to_scalar function

Moved len1_array_to_scalar from a nested function to a staticmethod
of TFLiteSubgraph.

Change-Id: I182f0b70f03070855c1a4478d26644892c1ebb15
Signed-off-by: Diego Russo <diego.russo@arm.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/ethosu/vela/test/test_tflite_reader.py b/ethosu/vela/test/test_tflite_reader.py
new file mode 100644
index 00000000..898e3840
--- /dev/null
+++ b/ethosu/vela/test/test_tflite_reader.py
@@ -0,0 +1,36 @@
+# 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:
+# Contains unit tests for tflite_reader
+import pytest
+from ethosu.vela.tflite_reader import TFLiteSubgraph
+
+
+class TestTFLiteSubgraph:
+
+    # Generate some data for testing len1_array_to_scalar
+    len1_testdata = [
+        (0, None),
+        pytest.param(1, None, marks=pytest.mark.xfail),
+        ([1, 2, 3], [1, 2, 3]),
+        ([10], 10),
+        ([], []),
+    ]
+
+    @pytest.mark.parametrize("test_input,expected", len1_testdata)
+    def test_len1_array_to_scalar(self, test_input, expected):
+        output = TFLiteSubgraph.len1_array_to_scalar(test_input)
+        assert output == expected