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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 range 

 

from lsst.sphgeom import Angle, Circle, HtmPixelization, RangeSet, UnitVector3d, ConvexPolygon 

 

 

class HtmPixelizationTestCase(unittest.TestCase): 

 

def test_construction(self): 

with self.assertRaises(ValueError): 

HtmPixelization(-1) 

with self.assertRaises(ValueError): 

HtmPixelization(HtmPixelization.MAX_LEVEL + 1) 

h1 = HtmPixelization(0) 

self.assertEqual(h1.getLevel(), 0) 

h2 = HtmPixelization(1) 

h3 = HtmPixelization(h2) 

self.assertNotEqual(h1, h2) 

self.assertEqual(h2, h3) 

 

def test_indexing(self): 

h = HtmPixelization(1) 

self.assertEqual(h.index(UnitVector3d(1, 1, 1)), 63) 

 

def test_pixel(self): 

h = HtmPixelization(1) 

self.assertIsInstance(h.pixel(10), ConvexPolygon) 

 

def test_level(self): 

for index in (0, 16 * 4**HtmPixelization.MAX_LEVEL): 

self.assertEqual(HtmPixelization.level(index), -1) 

for level in range(HtmPixelization.MAX_LEVEL + 1): 

for root in range(8, 16): 

self.assertEqual(HtmPixelization.level(root * 4**level), level) 

 

def test_envelope_and_interior(self): 

pixelization = HtmPixelization(3) 

c = Circle(UnitVector3d(1, 1, 1), Angle.fromDegrees(0.1)) 

rs = pixelization.envelope(c) 

self.assertTrue(rs == RangeSet(0x3ff)) 

rs = pixelization.envelope(c, 1) 

self.assertTrue(rs == RangeSet(0x3ff)) 

self.assertTrue(rs.isWithin(pixelization.universe())) 

rs = pixelization.interior(c) 

self.assertTrue(rs.empty()) 

 

def test_index_to_string(self): 

strings = ['S0', 'S1', 'S2', 'S3', 'N0', 'N1', 'N2', 'N3'] 

for i in range(8, 16): 

s0 = strings[i - 8] 

self.assertEqual(HtmPixelization.asString(i), s0) 

self.assertEqual(HtmPixelization(0).toString(i), s0) 

for j in range(4): 

s1 = s0 + str(j) 

self.assertEqual(HtmPixelization.asString(i*4 + j), s1) 

self.assertEqual(HtmPixelization(1).asString(i*4 + j), s1) 

 

def test_string(self): 

p = HtmPixelization(3) 

self.assertEqual(str(p), 'HtmPixelization(3)') 

self.assertEqual(str(p), repr(p)) 

self.assertEqual( 

p, eval(repr(p), dict(HtmPixelization=HtmPixelization))) 

 

def test_pickle(self): 

a = HtmPixelization(20) 

b = pickle.loads(pickle.dumps(a)) 

self.assertEqual(a, b) 

 

 

95 ↛ 96line 95 didn't jump to line 96, because the condition on line 95 was never trueif __name__ == '__main__': 

unittest.main()