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annotate weather_server/logfile_test.py @ 0:efe7a1eff167

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Create initial logger for weather server.
author Paul Fisher <paul@pfish.zone>
date Sat, 28 Sep 2019 23:17:21 -0400
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children beb42c835c52
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efe7a1eff167 Create initial logger for weather server.
Paul Fisher <paul@pfish.zone>
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1 import contextlib
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2 import datetime
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3 import pathlib
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4 import tempfile
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5 import unittest
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6
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7 import bson
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8 import pytz
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9
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10 from . import common
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11 from . import logfile
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12 from . import types
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13
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14
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15 def ts(n):
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16 return datetime.datetime.utcfromtimestamp(n).replace(tzinfo=pytz.UTC)
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17
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18
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19 class LoggerTest(unittest.TestCase):
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20
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21 maxDiff = None
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22
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23 def setUp(self):
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24 super().setUp()
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25 self.temp_dir = tempfile.TemporaryDirectory()
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26 self.log_path = pathlib.Path(self.temp_dir.name) / 'test.bson'
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27
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28 def tearDown(self):
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29 self.temp_dir.cleanup()
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30 super().tearDown()
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31
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32 def test_empty(self):
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33 with contextlib.closing(logfile.Logger(str(self.log_path))) as logger:
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34 self.assertEqual(logger.data, ())
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35
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36 def test_loading(self):
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37 with self.log_path.open('wb') as outfile:
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38 outfile.write(common.bson_encode(dict(
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39 sample_time=ts(123),
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40 temp_c=420,
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41 rh_pct=69,
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42 ingest_time=ts(125),
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43 )))
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44 outfile.write(b'garbage to ignore')
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45 with contextlib.closing(logfile.Logger(str(self.log_path))) as logger:
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46 self.assertEqual(
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47 logger.data,
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48 (types.Reading(ts(123), 420, 69, ts(125)),))
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49
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50 def test_writing(self):
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51 with self.log_path.open('wb') as outfile:
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52 outfile.write(common.bson_encode(dict(
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53 sample_time=ts(123),
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54 temp_c=420,
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55 rh_pct=69,
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56 ingest_time=ts(125),
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57 )))
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58 with contextlib.closing(logfile.Logger(str(self.log_path))) as logger:
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59 logger.write_rows([
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60 types.Reading(ts(100), 999, 666, ts(101)),
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61 types.Reading(ts(125), 333, 777, ts(200)),
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62 ])
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63 self.assertEqual(
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64 logger.data,
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65 (
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66 types.Reading(ts(123), 420, 69, ts(125)),
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67 types.Reading(ts(125), 333, 777, ts(200)),
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68 )
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69 )
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70
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71 self.assertEqual(self.read_bsons(), [
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72 dict(
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73 sample_time=ts(123),
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74 temp_c=420,
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75 rh_pct=69,
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76 ingest_time=ts(125),
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77 ),
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78 dict(
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79 sample_time=ts(125),
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80 temp_c=333,
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81 rh_pct=777,
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82 ingest_time=ts(200),
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83 ),
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84 ])
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85
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86 def test_outside_writes(self):
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87 with contextlib.closing(logfile.Logger(str(self.log_path))) as logger:
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88 logger.write_rows([
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89 types.Reading(ts(100), 999, 666, ts(101)),
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90 types.Reading(ts(125), 333, 777, ts(200)),
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91 ])
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92 with self.log_path.open('ab') as outfile:
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93 outfile.write(common.bson_encode(dict(
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94 sample_time=ts(1024),
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95 temp_c=256,
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96 rh_pct=128,
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97 ingest_time=ts(4096),
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98 )))
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99 outfile.flush()
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100 self.assertEqual(logger.data, (
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101 types.Reading(ts(100), 999, 666, ts(101)),
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102 types.Reading(ts(125), 333, 777, ts(200)),
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103 types.Reading(ts(1024), 256, 128, ts(4096)),
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104 ))
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105
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106 def read_bsons(self):
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107 with self.log_path.open('rb') as infile:
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108 return bson.decode_all(
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109 infile.read(), common.BSON_OPTIONS)
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110
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111
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112 if __name__ == '__main__':
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113 unittest.main()