Coverage for tests/test_Vector3d.py: 24%

74 statements  

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1# 

2# LSST Data Management System 

3# See COPYRIGHT file at the top of the source tree. 

4# 

5# This product includes software developed by the 

6# LSST Project (http://www.lsst.org/). 

7# 

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

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

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

11# (at your option) any later version. 

12# 

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

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

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

16# GNU General Public License for more details. 

17# 

18# You should have received a copy of the LSST License Statement and 

19# the GNU General Public License along with this program. If not, 

20# see <https://www.lsstcorp.org/LegalNotices/>. 

21# 

22 

23import math 

24import pickle 

25import unittest 

26 

27from lsst.sphgeom import Angle, UnitVector3d, Vector3d 

28 

29 

30class Vector3dTestCase(unittest.TestCase): 

31 def testConstruction(self): 

32 v = Vector3d(1, 2, 3) 

33 self.assertEqual(v.x(), 1) 

34 self.assertEqual(v.y(), 2) 

35 self.assertEqual(v.z(), 3) 

36 

37 def testComparison(self): 

38 v = Vector3d(1, 2, 3) 

39 self.assertEqual(v, Vector3d(1, 2, 3)) 

40 self.assertNotEqual(v, Vector3d(1, 2, 4)) 

41 

42 def testIsZero(self): 

43 self.assertTrue(Vector3d(0, 0, 0).isZero()) 

44 self.assertFalse(Vector3d(0, 0, 1).isZero()) 

45 

46 def testAccess(self): 

47 v = Vector3d(1, 2, 3) 

48 self.assertEqual(len(v), 3) 

49 self.assertEqual(v[0], 1) 

50 self.assertEqual(v[1], 2) 

51 self.assertEqual(v[2], 3) 

52 self.assertEqual(v[-3], 1) 

53 self.assertEqual(v[-2], 2) 

54 self.assertEqual(v[-1], 3) 

55 with self.assertRaises(IndexError): 

56 v[-4] 

57 with self.assertRaises(IndexError): 

58 v[3] 

59 

60 def testNormal(self): 

61 v = Vector3d(0, 2, 0) 

62 self.assertEqual(v.getSquaredNorm(), 4) 

63 self.assertEqual(v.getNorm(), 2) 

64 v.normalize() 

65 self.assertTrue(v.isNormalized()) 

66 self.assertEqual(v, Vector3d(0, 1, 0)) 

67 

68 def testDot(self): 

69 x = Vector3d(1, 0, 0) 

70 y = Vector3d(0, 1, 0) 

71 self.assertEqual(x.dot(y), 0) 

72 

73 def testCross(self): 

74 x = Vector3d(1, 0, 0) 

75 y = Vector3d(0, 1, 0) 

76 self.assertEqual(x.cross(y), Vector3d(0, 0, 1)) 

77 

78 def testArithmeticOperators(self): 

79 self.assertEqual(-Vector3d(1, 1, 1), Vector3d(-1, -1, -1)) 

80 self.assertEqual(Vector3d(1, 1, 1) * 2, Vector3d(2, 2, 2)) 

81 self.assertEqual(Vector3d(2, 2, 2) / 2, Vector3d(1, 1, 1)) 

82 self.assertEqual(Vector3d(1, 1, 1) + Vector3d(1, 1, 1), Vector3d(2, 2, 2)) 

83 self.assertEqual(Vector3d(1, 1, 1) - Vector3d(1, 1, 1), Vector3d()) 

84 v = Vector3d(1, 1, 1) 

85 v += Vector3d(3, 3, 3) 

86 v -= Vector3d(2, 2, 2) 

87 v *= 2.0 

88 v /= 4.0 

89 self.assertEqual(v, Vector3d(1, 1, 1)) 

90 self.assertEqual(v.cwiseProduct(Vector3d(2, 3, 4)), Vector3d(2, 3, 4)) 

91 

92 def testRotation(self): 

93 v = Vector3d(0, 1, 0).rotatedAround(UnitVector3d.X(), Angle(0.5 * math.pi)) 

94 self.assertAlmostEqual(v.x(), 0.0, places=15) 

95 self.assertAlmostEqual(v.y(), 0.0, places=15) 

96 self.assertAlmostEqual(v.z(), 1.0, places=15) 

97 

98 def testString(self): 

99 v = Vector3d(1, 0, 0) 

100 self.assertEqual(str(v), "[1.0, 0.0, 0.0]") 

101 self.assertEqual(repr(v), "Vector3d(1.0, 0.0, 0.0)") 

102 self.assertEqual(v, eval(repr(v), dict(Vector3d=Vector3d))) 

103 

104 def testPickle(self): 

105 v = Vector3d(1, 2, 3) 

106 w = pickle.loads(pickle.dumps(v)) 

107 self.assertEqual(v, w) 

108 

109 

110if __name__ == "__main__": 110 ↛ 111line 110 didn't jump to line 111, because the condition on line 110 was never true

111 unittest.main()