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annotate tests/test_grid.py @ 1:1b94f3bf97e5

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* limit distance function * start gridding * improve unicode handling
author Jeff Hammel <k0scist@gmail.com>
date Sat, 24 Jun 2017 14:02:14 -0700
parents 5dba84370182
children 49aae0c0293b
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1 #!/usr/bin/env python
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2
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3 """
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4 test that we can grid a solution
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5 """
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6
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7 import os
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8 import unittest
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9 from common import datafile
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10 from globalneighbors.grid import LatLonGrid
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11 from globalneighbors.locations import locations
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12 from globalneighbors.read import read_city_list
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15 class TestGrid(unittest.TestCase):
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16 """test gridding functionality"""
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17
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18 ### test functions
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19
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20 def test_dimensions(self):
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21
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22 # make a 2 degree grid
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23 grid = LatLonGrid(90, 180)
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24 assert grid.n == (90, 180)
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25 assert grid.d == (2., 2.)
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26 assert len(grid.grid) == 90
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27 for row in grid.grid:
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28 assert len(row) == 180
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30 def test_insertion(self):
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31
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32 coord = (-23., 122.)
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33 grid = LatLonGrid(3, 4)
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34 grid.add(1234, *coord)
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35 i, j = grid.index(*coord)
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36 assert i == 1
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37 assert j == 3
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38 assert grid[(i,j)] == set([1234])
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39
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40 def test_sample(self):
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41
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42 samplefile = datafile('sample.tsv')
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43 assert os.path.exists(samplefile)
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44 city_locations = locations(read_city_list(samplefile))
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45 self.grid_locations(city_locations)
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46
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47 ### generic (utility) functions
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48
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49 def grid_locations(self, locations):
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50 """grid locations + test created grid"""
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51
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52 grid = LatLonGrid(8, 8)
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53 for geoid, (lat, lon) in locations.items():
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54 grid.add(geoid, lat, lon)
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56 if __name__ == '__main__':
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57 unittest.main()