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# 

# LSST Data Management System 

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

# 

# This product includes software developed by the 

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

# 

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

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

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

# (at your option) any later version. 

# 

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

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

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

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

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

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

# 

from __future__ import absolute_import, division, print_function 

 

import pickle 

import unittest 

from builtins import object 

 

from lsst.sphgeom import (Angle, AngleInterval, 

CONTAINS, DISJOINT, 

NormalizedAngle, NormalizedAngleInterval) 

 

 

class IntervalTests(object): 

 

def testConstruction(self): 

i = self.Interval(self.Scalar(1)) 

self.assertEqual(i.getA(), i.getB()) 

self.assertEqual(i.getA(), self.Scalar(1)) 

i = self.Interval(self.Scalar(1), self.Scalar(2)) 

self.assertEqual(i, self.Interval.fromRadians(1, 2)) 

self.assertTrue(self.Interval.empty().isEmpty()) 

 

def testComparisonOperators(self): 

self.assertEqual(self.Interval(self.Scalar(1)), 

self.Interval.fromRadians(1, 1)) 

self.assertEqual(self.Interval(self.Scalar(1)), self.Scalar(1)) 

self.assertNotEqual(self.Interval.fromDegrees(1, 1), 

self.Interval.fromRadians(1, 1)) 

self.assertNotEqual(self.Interval.fromDegrees(2, 2), self.Scalar(1)) 

 

def testCenterAndSize(self): 

a = self.Interval.fromRadians(1, 2) 

self.assertEqual(a.getSize(), self.Scalar(1)) 

self.assertEqual(a.getCenter(), self.Scalar(1.5)) 

 

def testRelationships(self): 

a02 = self.Interval.fromRadians(0, 2) 

a13 = self.Interval.fromRadians(1, 3) 

a46 = self.Interval.fromRadians(4, 6) 

a06 = self.Interval.fromRadians(0, 6) 

self.assertTrue(a02.contains(self.Scalar(1))) 

self.assertTrue(a02.contains(self.Interval.fromRadians(0.5, 1.5))) 

self.assertTrue(a02.isDisjointFrom(self.Scalar(3))) 

self.assertTrue(a02.isDisjointFrom(a46)) 

self.assertTrue(a02.intersects(self.Scalar(1))) 

self.assertTrue(a02.intersects(a13)) 

self.assertTrue(self.Interval.fromRadians(1, 1).isWithin(a02)) 

self.assertTrue(a02.isWithin(a06)) 

r = a02.relate(self.Scalar(1)) 

self.assertEqual(r, CONTAINS) 

r = a46.relate(a02) 

self.assertEqual(r, DISJOINT) 

 

def testExpandingAndClipping(self): 

a = self.Interval.fromRadians(1, 2) 

b = ( 

a.expandedTo(self.Scalar(3)) 

.expandedTo(self.Interval.fromRadians(2, 4)) 

.clippedTo(self.Interval.fromRadians(0, 2)) 

.clippedTo(self.Scalar(1)) 

) 

a.expandTo(self.Scalar(3)).expandTo(self.Interval.fromRadians(2, 4)) 

a.clipTo(self.Interval.fromRadians(0, 2)).clipTo(self.Scalar(1)) 

self.assertEqual(a, b) 

self.assertEqual(a, self.Scalar(1)) 

 

def testDilationAndErosion(self): 

a = self.Interval.fromRadians(1, 3) 

b = a.dilatedBy(self.Scalar(1)).erodedBy(self.Scalar(2)) 

a.dilateBy(self.Scalar(1)).erodeBy(self.Scalar(2)) 

self.assertEqual(a, b) 

self.assertEqual(a, self.Scalar(2)) 

 

def testString(self): 

a = self.Interval.fromRadians(0.5, 1.5) 

self.assertEqual(str(a), '[0.5, 1.5]') 

self.assertEqual(repr(a), 

self.Interval.__name__ + '.fromRadians(0.5, 1.5)') 

self.assertEqual( 

a, eval(repr(a), dict([(self.Interval.__name__, self.Interval)]))) 

 

def testPickle(self): 

a = self.Interval.fromRadians(1, 3) 

b = pickle.loads(pickle.dumps(a)) 

self.assertEqual(a, b) 

 

 

class AngleIntervalTestCase(unittest.TestCase, IntervalTests): 

 

def setUp(self): 

self.Interval = AngleInterval 

self.Scalar = Angle 

 

 

class NormalizedAngleIntervalTestCase(unittest.TestCase, IntervalTests): 

 

def setUp(self): 

self.Interval = NormalizedAngleInterval 

self.Scalar = NormalizedAngle 

 

 

122 ↛ 123line 122 didn't jump to line 123, because the condition on line 122 was never trueif __name__ == '__main__': 

unittest.main()