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o3de/Tools/LyTestTools/tests/unit/test_screenshot_compare_qssim.py
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2021-06-23 10:55:22 -07:00

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"""
Copyright (c) Contributors to the Open 3D Engine Project
SPDX-License-Identifier: Apache-2.0 OR MIT
Unit test for ly_test_tools.image.screenshot_compare_qssim
"""
import unittest.mock as mock
import numpy as np
import pytest
import ly_test_tools.image.screenshot_compare_qssim as screenshot_compare
pytestmark = pytest.mark.SUITE_smoke
class TestScreenshotCompare(object):
def test_QuaternionMatrixConj_4x3Matrix_ValidConjugate(self):
given_matrix = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10 , 11, 12]]])
expected_conjugateMatrix = np.array([[[1, -2, -3, -4], [5, -6, -7, -8], [9, -10, -11, -12]]])
result_conjugateMatrix = screenshot_compare._quaternion_matrix_conj(given_matrix)
assert np.array_equal(result_conjugateMatrix,expected_conjugateMatrix)
def test_QuaternionMatrixDot_4x3matrix_ValidDotProduct(self):
given_matrix = np.array([[[0, 0, 0, 2], [0, 0, 4, 0], [0, 0, 8, 0]]])
expected_answer = np.array([[2, 4, 8]])
result_matrix = screenshot_compare._quaternion_matrix_dot(given_matrix, given_matrix)
assert np.array_equal(expected_answer,result_matrix)
@mock.patch('ly_test_tools.image.screenshot_compare_qssim._quaternion_matrix_dot')
def test_QuaternionMatrixNorm_DotProductUsed_AssertDotProductCalled(self, mock_matrixDotProduct):
given_matrix = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]])
screenshot_compare._quaternion_matrix_norm(given_matrix)
mock_matrixDotProduct.assert_called_once()
mock_matrixDotProduct.assert_called_with(given_matrix,given_matrix)
@mock.patch('ly_test_tools.image.screenshot_compare_qssim._quaternion_matrix_norm')
def test_QuaternionMatrixDivide_NormCalledForSecondMatrix_AssertNormCalled(self, mock_matrixNorm):
matrix_a = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]])
matrix_b = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]])
mock_matrixNorm.return_value = np.array([[1,2,3]])
screenshot_compare._quaternion_matrix_div(matrix_a, matrix_b)
mock_matrixNorm.assert_called_with(matrix_b)
@mock.patch('numpy.divide',mock.MagicMock())
@mock.patch('ly_test_tools.image.screenshot_compare_qssim._quaternion_matrix_mult',mock.MagicMock())
@mock.patch('ly_test_tools.image.screenshot_compare_qssim._quaternion_matrix_conj')
def test_QuaternionMatrixDivide_ConjugateCalledForSecondMatrix_AssertConjugateCalled(self, mock_matrixConjugate):
matrix_a = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]])
matrix_b = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]])
screenshot_compare._quaternion_matrix_div(matrix_a, matrix_b)
mock_matrixConjugate.assert_called_with(matrix_b)
@mock.patch('numpy.divide',mock.MagicMock())
@mock.patch('ly_test_tools.image.screenshot_compare_qssim._quaternion_matrix_conj')
@mock.patch('ly_test_tools.image.screenshot_compare_qssim._quaternion_matrix_mult')
def test_QuaternionMatrixDivide_MultiplyCalledForMatAConjB_AssertMultiplyCalled(self, mock_matrixMultiply,mock_matrixConjugate):
matrix_a = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]])
matrix_b = np.array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]])
mock_conjugate_return = np.array([[[1, -2, -3, -4], [5, -6, -7, -8], [9, -10, -11, -12]]])
mock_matrixConjugate.return_value = mock_conjugate_return
screenshot_compare._quaternion_matrix_div(matrix_a, matrix_b)
mock_matrixMultiply.assert_called_with(matrix_a,mock_conjugate_return)
@mock.patch('imageio.imread')
@mock.patch('imageio.imwrite',mock.MagicMock())
def test_qssim_CheckSameImage_ShouldReturnOne(self, mock_imageRead):
matrix_a = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 9]]])
matrix_b = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 9]]])
mock_imageRead.side_effect = [matrix_a,matrix_b]
assert screenshot_compare.qssim('test1.jpg', 'test2.jpg') == 1
@mock.patch('imageio.imread')
@mock.patch('imageio.imwrite',mock.MagicMock())
def test_qssim_CheckAlmostSameImage_GreaterThanHalf(self, mock_imageRead):
matrix_a = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 9]]])
matrix_b = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 19]]])
mock_imageRead.side_effect = [matrix_a,matrix_b]
assert screenshot_compare.qssim('test1.jpg', 'test2.jpg') > 0.5
@mock.patch('imageio.imread')
@mock.patch('imageio.imwrite',mock.MagicMock())
def test_qssim_CheckDifferentImage_ShouldNotReturnOne(self, mock_imageRead):
matrix_a = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 9]]])
matrix_b = np.array([[[11, 12, 13], [14, 15, 16], [17, 18, 19]]])
mock_imageRead.side_effect = [matrix_a,matrix_b]
assert screenshot_compare.qssim('test1.jpg', 'test2.jpg') != 1
@mock.patch('imageio.imread')
@mock.patch('imageio.imwrite')
def test_qssim_CheckDiffImageSaved_AssertImSave(self, mock_imageSave, mock_imageRead):
matrix_a = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 9]]])
matrix_b = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 9]]])
mock_imageRead.side_effect = [matrix_a,matrix_b]
screenshot_compare.qssim('test1.jpg', 'test2.jpg')
mock_imageSave.assert_called()