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1# Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
2# SPDX-License-Identifier: MIT
3import inspect
4from typing import Tuple
5
6import pytest
7
8import pyarmnn._generated.pyarmnn as generated_armnn
9import pyarmnn._generated.pyarmnn as generated_deserializer
10import pyarmnn._generated.pyarmnn_caffeparser as generated_caffe
11import pyarmnn._generated.pyarmnn_onnxparser as generated_onnx
12import pyarmnn._generated.pyarmnn_tfliteparser as generated_tflite
13import pyarmnn._generated.pyarmnn_tfparser as generated_tf
14
15swig_independent_classes = ('IBackend',
16                            'IDeviceSpec',
17                            'IConnectableLayer',
18                            'IInputSlot',
19                            'IOutputSlot',
20                            'IProfiler')
21
22
23def get_classes(swig_independent_classes: Tuple):
24    # We need to ignore some swig generated_armnn classes. This is because some are abstract classes
25    # They cannot be created with the swig generated_armnn wrapper, therefore they don't need a destructor.
26    # Swig also generates its own meta class - this needs to be ignored.
27    ignored_class_names = (*swig_independent_classes, '_SwigNonDynamicMeta')
28    return list(filter(lambda x: x[0] not in ignored_class_names,
29                       inspect.getmembers(generated_armnn, inspect.isclass) +
30                       inspect.getmembers(generated_deserializer, inspect.isclass) +
31                       inspect.getmembers(generated_caffe, inspect.isclass) +
32                       inspect.getmembers(generated_tflite, inspect.isclass) +
33                       inspect.getmembers(generated_onnx, inspect.isclass) +
34                       inspect.getmembers(generated_tf, inspect.isclass)))
35
36
37@pytest.mark.parametrize("class_instance", get_classes(swig_independent_classes), ids=lambda x: 'class={}'.format(x[0]))
38class TestPyOwnedClasses:
39
40    def test_destructors_exist_per_class(self, class_instance):
41        assert getattr(class_instance[1], '__swig_destroy__', None)
42
43    def test_owned(self, class_instance):
44        assert getattr(class_instance[1], 'thisown', None)
45
46
47@pytest.mark.parametrize("class_instance", swig_independent_classes)
48class TestPyIndependentClasses:
49
50    def test_destructors_does_not_exist_per_class(self, class_instance):
51        assert not getattr(class_instance[1], '__swig_destroy__', None)
52
53    def test_not_owned(self, class_instance):
54        assert not getattr(class_instance[1], 'thisown', None)
55