Mercurial > hg
annotate contrib/bdiff-torture.py @ 31156:e5aab82edf7f
ui: fix configlist on Python 3
Since we're working on bytestrings, we have to use [offset:offset+1]
to get consistent behavior on Python 2 and 3. I've only tested the
_parse_plain closure, not the _parse_quote one, but I have no real
reason to expect the latter to be broken since the fixes were fairly
mechanical.
author | Augie Fackler <raf@durin42.com> |
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date | Fri, 03 Mar 2017 14:10:06 -0500 |
parents | eccfd6500636 |
children | ded48ad55146 |
rev | line source |
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1 # Randomized torture test generation for bdiff |
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2 |
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3 from __future__ import absolute_import, print_function |
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4 import random |
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5 import sys |
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6 |
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7 from mercurial import ( |
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8 bdiff, |
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9 mpatch, |
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10 ) |
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11 |
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12 def reducetest(a, b): |
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13 tries = 0 |
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14 reductions = 0 |
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15 print("reducing...") |
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16 while tries < 1000: |
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17 a2 = "\n".join(l for l in a.splitlines() |
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18 if random.randint(0, 100) > 0) + "\n" |
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19 b2 = "\n".join(l for l in b.splitlines() |
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20 if random.randint(0, 100) > 0) + "\n" |
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21 if a2 == a and b2 == b: |
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22 continue |
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23 if a2 == b2: |
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24 continue |
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25 tries += 1 |
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26 |
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27 try: |
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28 test1(a, b) |
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29 except Exception as inst: |
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30 reductions += 1 |
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31 tries = 0 |
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32 a = a2 |
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33 b = b2 |
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34 |
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35 print("reduced:", reductions, len(a) + len(b), |
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36 repr(a), repr(b)) |
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37 try: |
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38 test1(a, b) |
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39 except Exception as inst: |
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40 print("failed:", inst) |
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41 |
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42 sys.exit(0) |
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43 |
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44 def test1(a, b): |
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45 d = bdiff.bdiff(a, b) |
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46 if not d: |
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47 raise ValueError("empty") |
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48 c = mpatch.patches(a, [d]) |
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49 if c != b: |
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50 raise ValueError("bad") |
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51 |
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52 def testwrap(a, b): |
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53 try: |
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54 test1(a, b) |
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55 return |
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56 except Exception as inst: |
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57 pass |
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58 print("exception:", inst) |
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59 reducetest(a, b) |
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60 |
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61 def test(a, b): |
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62 testwrap(a, b) |
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63 testwrap(b, a) |
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64 |
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65 def rndtest(size, noise): |
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66 a = [] |
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67 src = " aaaaaaaabbbbccd" |
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68 for x in xrange(size): |
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69 a.append(src[random.randint(0, len(src) - 1)]) |
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70 |
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71 while True: |
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72 b = [c for c in a if random.randint(0, 99) > noise] |
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73 b2 = [] |
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74 for c in b: |
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75 b2.append(c) |
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76 while random.randint(0, 99) < noise: |
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77 b2.append(src[random.randint(0, len(src) - 1)]) |
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78 if b2 != a: |
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79 break |
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80 |
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81 a = "\n".join(a) + "\n" |
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82 b = "\n".join(b2) + "\n" |
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83 |
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84 test(a, b) |
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85 |
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86 maxvol = 10000 |
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87 startsize = 2 |
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88 while True: |
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89 size = startsize |
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90 count = 0 |
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91 while size < maxvol: |
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92 print(size) |
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93 volume = 0 |
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94 while volume < maxvol: |
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95 rndtest(size, 2) |
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96 volume += size |
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97 count += 2 |
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98 size *= 2 |
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99 maxvol *= 4 |
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100 startsize *= 4 |