Coverage for tests/test_Matrix3d.py: 16%

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1# This file is part of sphgeom. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (http://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This software is dual licensed under the GNU General Public License and also 

10# under a 3-clause BSD license. Recipients may choose which of these licenses 

11# to use; please see the files gpl-3.0.txt and/or bsd_license.txt, 

12# respectively. If you choose the GPL option then the following text applies 

13# (but note that there is still no warranty even if you opt for BSD instead): 

14# 

15# This program is free software: you can redistribute it and/or modify 

16# it under the terms of the GNU General Public License as published by 

17# the Free Software Foundation, either version 3 of the License, or 

18# (at your option) any later version. 

19# 

20# This program is distributed in the hope that it will be useful, 

21# but WITHOUT ANY WARRANTY; without even the implied warranty of 

22# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

23# GNU General Public License for more details. 

24# 

25# You should have received a copy of the GNU General Public License 

26# along with this program. If not, see <http://www.gnu.org/licenses/>. 

27 

28import pickle 

29import unittest 

30 

31from lsst.sphgeom import Matrix3d, Vector3d 

32 

33 

34class Matrix3dTestCase(unittest.TestCase): 

35 """Test 3D Matrix.""" 

36 

37 def testConstruction(self): 

38 self.assertEqual(Matrix3d().getSquaredNorm(), 0) 

39 self.assertEqual(Matrix3d(1, 0, 0, 0, 1, 0, 0, 0, 1), Matrix3d(1)) 

40 

41 def testComparison(self): 

42 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9) 

43 self.assertEqual(m, m) 

44 self.assertNotEqual(m, Matrix3d(2)) 

45 

46 def testIter(self): 

47 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9) 

48 r = 0 

49 for row in m: 

50 self.assertEqual(row, Vector3d(*range(r * 3 + 1, r * 3 + 4))) 

51 r += 1 

52 

53 def testAccess(self): 

54 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9) 

55 self.assertEqual(len(m), 3) 

56 self.assertEqual(m[0], Vector3d(1, 2, 3)) 

57 self.assertEqual(m[1], Vector3d(4, 5, 6)) 

58 self.assertEqual(m[2], Vector3d(7, 8, 9)) 

59 self.assertEqual(m[0], m.getRow(0)) 

60 self.assertEqual(m[1], m.getRow(1)) 

61 self.assertEqual(m[2], m.getRow(2)) 

62 n = m.transpose() 

63 self.assertEqual(m.getColumn(0), n[0]) 

64 self.assertEqual(m.getColumn(1), n[1]) 

65 self.assertEqual(m.getColumn(2), n[2]) 

66 for r in range(3): 

67 for c in range(3): 

68 self.assertEqual(m[r, c], r * 3 + c + 1) 

69 for i in (-4, 3): 

70 with self.assertRaises(IndexError): 

71 m.getRow(i) 

72 with self.assertRaises(IndexError): 

73 m.getColumn(i) 

74 for i in [-4, 3, (-4, 1), (3, 1), (1, -4), (1, 3)]: 

75 with self.assertRaises(IndexError): 

76 m[i] 

77 

78 def testInner(self): 

79 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9) 

80 i = Matrix3d(1) 

81 self.assertEqual(m.inner(i), i.inner(m)) 

82 self.assertEqual(m.inner(i), 15.0) 

83 

84 def testNorm(self): 

85 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 0, 2) 

86 self.assertEqual(m.getSquaredNorm(), 144.0) 

87 self.assertEqual(m.getNorm(), 12.0) 

88 

89 def testArithmetic(self): 

90 v = Vector3d(1, 2, 3) 

91 m = Matrix3d(1, -1, 0, 1, 1, 0, 0, 0, 1) 

92 n = Matrix3d(1, 1, 0, -1, 1, 0, 0, 0, 1) 

93 self.assertEqual(n * (m * v), Vector3d(2, 4, 3)) 

94 self.assertEqual(m + m, m * Matrix3d(2)) 

95 self.assertEqual(m, m * Matrix3d(2) - m) 

96 

97 def testCwiseProduct(self): 

98 m = Matrix3d(1, 2, 3, 4, 1, 6, 7, 8, 1) 

99 self.assertEqual(m.cwiseProduct(Matrix3d(2)), Matrix3d(2)) 

100 

101 def testTranspose(self): 

102 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9) 

103 n = Matrix3d(1, 4, 7, 2, 5, 8, 3, 6, 9) 

104 self.assertEqual(m.transpose(), n) 

105 self.assertEqual(m.transpose().transpose(), m) 

106 

107 def testInverse(self): 

108 m = Matrix3d(4, 4, 4, -1, 1, 0, 1, -1, -1) 

109 n = Matrix3d(0.125, 0, 0.5, 0.125, 1, 0.5, 0, -1, -1) 

110 i = m.inverse() 

111 self.assertEqual(i, n) 

112 self.assertEqual(i.inverse(), m) 

113 self.assertEqual(i * m, Matrix3d(1)) 

114 self.assertEqual(m * i, Matrix3d(1)) 

115 

116 def testString(self): 

117 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9) 

118 self.assertEqual(str(m), "[[1.0, 2.0, 3.0],\n [4.0, 5.0, 6.0],\n [7.0, 8.0, 9.0]]") 

119 self.assertEqual(repr(m), "Matrix3d(1.0, 2.0, 3.0,\n 4.0, 5.0, 6.0,\n 7.0, 8.0, 9.0)") 

120 self.assertEqual(m, eval(repr(m), {"Matrix3d": Matrix3d})) 

121 

122 def testPickle(self): 

123 m = Matrix3d(1, 2, 3, 4, 5, 6, 7, 8, 9) 

124 n = pickle.loads(pickle.dumps(m)) 

125 self.assertEqual(m, n) 

126 

127 

128if __name__ == "__main__": 

129 unittest.main()