Mercurial > hg
annotate tests/test-batching.py @ 33343:305935be8d5c
test-status-rev: conditionalize output instead of tests
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sat, 08 Jul 2017 18:46:43 -0400 |
parents | 544908ae36ce |
children | e2fc2122029c |
rev | line source |
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1 # test-batching.py - tests for transparent command batching |
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2 # |
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3 # Copyright 2011 Peter Arrenbrecht <peter@arrenbrecht.ch> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import, print_function |
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9 |
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10 from mercurial import ( |
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11 peer, |
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12 wireproto, |
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13 ) |
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14 |
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15 # equivalent of repo.repository |
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16 class thing(object): |
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17 def hello(self): |
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18 return "Ready." |
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19 |
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20 # equivalent of localrepo.localrepository |
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21 class localthing(thing): |
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22 def foo(self, one, two=None): |
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23 if one: |
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24 return "%s and %s" % (one, two,) |
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25 return "Nope" |
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26 def bar(self, b, a): |
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27 return "%s und %s" % (b, a,) |
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28 def greet(self, name=None): |
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29 return "Hello, %s" % name |
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30 def batch(self): |
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31 '''Support for local batching.''' |
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32 return peer.localbatch(self) |
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33 |
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34 # usage of "thing" interface |
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35 def use(it): |
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36 |
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37 # Direct call to base method shared between client and server. |
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38 print(it.hello()) |
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39 |
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40 # Direct calls to proxied methods. They cause individual roundtrips. |
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41 print(it.foo("Un", two="Deux")) |
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42 print(it.bar("Eins", "Zwei")) |
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43 |
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44 # Batched call to a couple of (possibly proxied) methods. |
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45 batch = it.batch() |
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46 # The calls return futures to eventually hold results. |
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47 foo = batch.foo(one="One", two="Two") |
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48 foo2 = batch.foo(None) |
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49 bar = batch.bar("Eins", "Zwei") |
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50 # We can call non-batchable proxy methods, but the break the current batch |
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51 # request and cause additional roundtrips. |
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52 greet = batch.greet(name="John Smith") |
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53 # We can also add local methods into the mix, but they break the batch too. |
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54 hello = batch.hello() |
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55 bar2 = batch.bar(b="Uno", a="Due") |
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56 # Only now are all the calls executed in sequence, with as few roundtrips |
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57 # as possible. |
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58 batch.submit() |
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59 # After the call to submit, the futures actually contain values. |
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60 print(foo.value) |
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61 print(foo2.value) |
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62 print(bar.value) |
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63 print(greet.value) |
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64 print(hello.value) |
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65 print(bar2.value) |
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66 |
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67 # local usage |
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68 mylocal = localthing() |
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69 print() |
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70 print("== Local") |
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71 use(mylocal) |
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72 |
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73 # demo remoting; mimicks what wireproto and HTTP/SSH do |
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74 |
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75 # shared |
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76 |
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77 def escapearg(plain): |
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78 return (plain |
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79 .replace(':', '::') |
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80 .replace(',', ':,') |
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81 .replace(';', ':;') |
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82 .replace('=', ':=')) |
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83 def unescapearg(escaped): |
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84 return (escaped |
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85 .replace(':=', '=') |
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86 .replace(':;', ';') |
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87 .replace(':,', ',') |
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88 .replace('::', ':')) |
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89 |
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90 # server side |
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91 |
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92 # equivalent of wireproto's global functions |
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93 class server(object): |
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94 def __init__(self, local): |
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95 self.local = local |
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96 def _call(self, name, args): |
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97 args = dict(arg.split('=', 1) for arg in args) |
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98 return getattr(self, name)(**args) |
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99 def perform(self, req): |
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100 print("REQ:", req) |
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101 name, args = req.split('?', 1) |
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102 args = args.split('&') |
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103 vals = dict(arg.split('=', 1) for arg in args) |
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104 res = getattr(self, name)(**vals) |
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105 print(" ->", res) |
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106 return res |
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107 def batch(self, cmds): |
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108 res = [] |
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109 for pair in cmds.split(';'): |
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110 name, args = pair.split(':', 1) |
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111 vals = {} |
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112 for a in args.split(','): |
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113 if a: |
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114 n, v = a.split('=') |
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115 vals[n] = unescapearg(v) |
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116 res.append(escapearg(getattr(self, name)(**vals))) |
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117 return ';'.join(res) |
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118 def foo(self, one, two): |
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119 return mangle(self.local.foo(unmangle(one), unmangle(two))) |
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120 def bar(self, b, a): |
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121 return mangle(self.local.bar(unmangle(b), unmangle(a))) |
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122 def greet(self, name): |
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123 return mangle(self.local.greet(unmangle(name))) |
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124 myserver = server(mylocal) |
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125 |
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126 # local side |
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127 |
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128 # equivalent of wireproto.encode/decodelist, that is, type-specific marshalling |
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129 # here we just transform the strings a bit to check we're properly en-/decoding |
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130 def mangle(s): |
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131 return ''.join(chr(ord(c) + 1) for c in s) |
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132 def unmangle(s): |
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133 return ''.join(chr(ord(c) - 1) for c in s) |
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134 |
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135 # equivalent of wireproto.wirerepository and something like http's wire format |
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136 class remotething(thing): |
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137 def __init__(self, server): |
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138 self.server = server |
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139 def _submitone(self, name, args): |
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140 req = name + '?' + '&'.join(['%s=%s' % (n, v) for n, v in args]) |
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141 return self.server.perform(req) |
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142 def _submitbatch(self, cmds): |
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143 req = [] |
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144 for name, args in cmds: |
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145 args = ','.join(n + '=' + escapearg(v) for n, v in args) |
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146 req.append(name + ':' + args) |
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147 req = ';'.join(req) |
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148 res = self._submitone('batch', [('cmds', req,)]) |
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149 return res.split(';') |
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150 |
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151 def batch(self): |
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152 return wireproto.remotebatch(self) |
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153 |
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154 @peer.batchable |
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155 def foo(self, one, two=None): |
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156 if not one: |
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157 yield "Nope", None |
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158 encargs = [('one', mangle(one),), ('two', mangle(two),)] |
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159 encresref = peer.future() |
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160 yield encargs, encresref |
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161 yield unmangle(encresref.value) |
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162 |
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163 @peer.batchable |
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164 def bar(self, b, a): |
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165 encresref = peer.future() |
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166 yield [('b', mangle(b),), ('a', mangle(a),)], encresref |
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167 yield unmangle(encresref.value) |
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168 |
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169 # greet is coded directly. It therefore does not support batching. If it |
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170 # does appear in a batch, the batch is split around greet, and the call to |
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171 # greet is done in its own roundtrip. |
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172 def greet(self, name=None): |
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173 return unmangle(self._submitone('greet', [('name', mangle(name),)])) |
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174 |
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175 # demo remote usage |
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176 |
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177 myproxy = remotething(myserver) |
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178 print() |
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179 print("== Remote") |
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180 use(myproxy) |