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annotate tests/test-rust-discovery.py @ 42179:13b64247f48f

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rust-discovery: cpython bindings for the core logic As previously done with the ancestors submodule, testing for the bindings is provided from Python on a trivial case. Differential Revision: https://phab.mercurial-scm.org/D6232
author Georges Racinet <georges.racinet@octobus.net>
date Wed, 20 Feb 2019 09:04:39 +0100
parents
children 1b0be75cb61f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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42179
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1 from __future__ import absolute_import
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2 import unittest
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3
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4 try:
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5 from mercurial import rustext
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6 rustext.__name__ # trigger immediate actual import
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7 except ImportError:
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8 rustext = None
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9 else:
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10 # this would fail already without appropriate ancestor.__package__
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11 from mercurial.rustext.discovery import (
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12 PartialDiscovery,
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13 )
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14
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15 try:
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16 from mercurial.cext import parsers as cparsers
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17 except ImportError:
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18 cparsers = None
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19
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20 # picked from test-parse-index2, copied rather than imported
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21 # so that it stays stable even if test-parse-index2 changes or disappears.
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22 data_non_inlined = (
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23 b'\x00\x00\x00\x01\x00\x00\x00\x00\x00\x01D\x19'
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24 b'\x00\x07e\x12\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff'
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25 b'\xff\xff\xff\xff\xd1\xf4\xbb\xb0\xbe\xfc\x13\xbd\x8c\xd3\x9d'
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26 b'\x0f\xcd\xd9;\x8c\x07\x8cJ/\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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27 b'\x00\x00\x00\x00\x00\x00\x01D\x19\x00\x00\x00\x00\x00\xdf\x00'
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28 b'\x00\x01q\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\xff'
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29 b'\xff\xff\xff\xc1\x12\xb9\x04\x96\xa4Z1t\x91\xdfsJ\x90\xf0\x9bh'
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30 b'\x07l&\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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31 b'\x00\x01D\xf8\x00\x00\x00\x00\x01\x1b\x00\x00\x01\xb8\x00\x00'
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32 b'\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\xff\xff\xff\xff\x02\n'
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33 b'\x0e\xc6&\xa1\x92\xae6\x0b\x02i\xfe-\xe5\xbao\x05\xd1\xe7\x00'
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34 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01F'
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35 b'\x13\x00\x00\x00\x00\x01\xec\x00\x00\x03\x06\x00\x00\x00\x01'
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36 b'\x00\x00\x00\x03\x00\x00\x00\x02\xff\xff\xff\xff\x12\xcb\xeby1'
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37 b'\xb6\r\x98B\xcb\x07\xbd`\x8f\x92\xd9\xc4\x84\xbdK\x00\x00\x00'
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38 b'\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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39 )
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40
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41
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42 @unittest.skipIf(rustext is None or cparsers is None,
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43 "rustext or the C Extension parsers module "
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44 "discovery relies on is not available")
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45 class rustdiscoverytest(unittest.TestCase):
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46 """Test the correctness of binding to Rust code.
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47
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48 This test is merely for the binding to Rust itself: extraction of
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49 Python variable, giving back the results etc.
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50
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51 It is not meant to test the algorithmic correctness of the provided
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52 methods. Hence the very simple embedded index data is good enough.
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53
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54 Algorithmic correctness is asserted by the Rust unit tests.
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55 """
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56
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57 def parseindex(self):
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58 return cparsers.parse_index2(data_non_inlined, False)[0]
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59
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60 def testindex(self):
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61 idx = self.parseindex()
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62 # checking our assumptions about the index binary data:
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63 self.assertEqual({i: (r[5], r[6]) for i, r in enumerate(idx)},
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64 {0: (-1, -1),
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65 1: (0, -1),
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66 2: (1, -1),
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67 3: (2, -1)})
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68
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69 def testaddcommonsmissings(self):
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70 idx = self.parseindex()
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71 disco = PartialDiscovery(idx, [3])
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72 self.assertFalse(disco.hasinfo())
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73 self.assertFalse(disco.iscomplete())
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74
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75 disco.addcommons([1])
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76 self.assertTrue(disco.hasinfo())
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77 self.assertFalse(disco.iscomplete())
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78
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79 disco.addmissings([2])
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80 self.assertTrue(disco.hasinfo())
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81 self.assertTrue(disco.iscomplete())
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82
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83 self.assertEqual(disco.commonheads(), {1})
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84
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85 def testaddinfocommonfirst(self):
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86 idx = self.parseindex()
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87 disco = PartialDiscovery(idx, [3])
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88 disco.addinfo([(1, True), (2, False)])
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89 self.assertTrue(disco.hasinfo())
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90 self.assertTrue(disco.iscomplete())
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91 self.assertEqual(disco.commonheads(), {1})
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92
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93 def testaddinfomissingfirst(self):
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94 idx = self.parseindex()
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95 disco = PartialDiscovery(idx, [3])
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96 disco.addinfo([(2, False), (1, True)])
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97 self.assertTrue(disco.hasinfo())
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98 self.assertTrue(disco.iscomplete())
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99 self.assertEqual(disco.commonheads(), {1})
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100
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101 if __name__ == '__main__':
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102 import silenttestrunner
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103 silenttestrunner.main(__name__)