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1# Copyright 2021 Huawei Technologies Co., Ltd
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7# http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14# ============================================================================
15# """test_hausdorff_distance"""
16
17import math
18import numpy as np
19import pytest
20from mindspore import Tensor
21from mindspore.nn.metrics import get_metric_fn, HausdorffDistance
22
23
24def test_hausdorff_distance():
25    """test_hausdorff_distance"""
26    x = Tensor(np.array([[3, 0, 1], [1, 3, 0], [1, 0, 2]]))
27    y = Tensor(np.array([[0, 2, 1], [1, 2, 1], [0, 0, 1]]))
28    metric = get_metric_fn('hausdorff_distance')
29    metric.clear()
30    metric.update(x, y, 0)
31    distance = metric.eval()
32
33    assert math.isclose(distance, 1.4142135623730951, abs_tol=0.001)
34
35
36def test_hausdorff_distance_update1():
37    x = Tensor(np.array([[0.2, 0.5, 0.7], [0.3, 0.1, 0.2], [0.9, 0.6, 0.5]]))
38    metric = HausdorffDistance()
39    metric.clear()
40
41    with pytest.raises(ValueError):
42        metric.update(x)
43
44
45def test_hausdorff_distance_update2():
46    x = Tensor(np.array([[0.2, 0.5, 0.7], [0.3, 0.1, 0.2], [0.9, 0.6, 0.5]]))
47    y = Tensor(np.array([1, 0]))
48    metric = HausdorffDistance()
49    metric.clear()
50
51    with pytest.raises(ValueError):
52        metric.update(x, y)
53
54
55def test_hausdorff_distance_init():
56    with pytest.raises(ValueError):
57        HausdorffDistance(distance_metric="eucli", percentile=None, directed=False, crop=False)
58
59
60def test_hausdorff_distance_runtime():
61    metric = HausdorffDistance()
62    metric.clear()
63
64    with pytest.raises(RuntimeError):
65        metric.eval()
66