Mercurial > hg > GlobalNeighbors

annotate tests/test_read.py @ 14:27925261c137

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fix broken tests including an aggregious case where we add ourselves as a neighbor to ourself
author Jeff Hammel <k0scist@gmail.com>
date Sun, 25 Jun 2017 14:29:18 -0700
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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 data reading + loading
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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 globalneighbors import schema
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10 from globalneighbors.locations import locations
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11 from globalneighbors.read import read_tsv
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12 from globalneighbors.read import read_cities
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13 from globalneighbors.read import read_city_list
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16 here = os.path.dirname(os.path.abspath(__file__))
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17 data = os.path.join(here, 'data')
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18
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19 class TestDataRead(unittest.TestCase):
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20
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21 # created with
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22 # head -n 10 cities1000.txt > GlobalNeighbors/tests/data/sample.tsv
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23 test_tsv = os.path.join(data, 'sample.tsv')
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24 test_tsv_lines = 10
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25
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26 # full dataset: test with caution
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27 full_tsv = os.path.join(data, 'cities1000.txt')
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28 full_tsv_lines = 149092
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29
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30 def test_read_tsv(self):
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31 """test reading a tsv file chunk"""
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32
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33 assert os.path.isfile(self.test_tsv)
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34 sample = read_tsv(self.test_tsv)
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35
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36 assert len(sample) == 10
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37 for row in sample:
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38 assert len(row) == len(schema.descriptions)
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39
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40 def test_full_dataset(self):
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41 """ensure we can operate on the full dataset"""
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42
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43 assert os.path.isfile(self.full_tsv)
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44 cities = read_tsv(self.full_tsv)
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45 assert len(cities) == self.full_tsv_lines
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46 for row in cities:
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47 assert len(row) == len(schema.descriptions)
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48
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49 # cast the data into types we want
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50 for row in cities:
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51 row = schema.cast_row(row, types=schema.types)
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52
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53 def test_read_unicode(self):
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54 """ensure we can read the cities as unicode"""
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55
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56 cities = read_city_list(self.full_tsv)
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57 for city in cities:
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58 for field in schema.unicode_fields:
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59 assert isinstance(city[field], unicode)
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60
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61 def test_iterative_locations(self):
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62 """assert we can read into locations as a generator"""
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63
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64 with open(self.test_tsv) as f:
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65 cities = locations(read_cities(f))
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66 for geonameid, (lat, lon) in cities.items():
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67 assert -90. <= lat <= 90.
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68 assert -180. <= lon <= 180.
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69 assert type(geonameid) == schema.types['geonameid']
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72 if __name__ == '__main__':
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73 unittest.main()