annotate tests/test-worker.t @ 40413:1ddd202c47d9

help: allow hiding of help topics Differential Revision: https://phab.mercurial-scm.org/D5077
author rdamazio@google.com
date Sat, 13 Oct 2018 05:43:39 -0700
parents 4f0439981a8a
children bad59bbd9bec
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1 Test UI worker interaction
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2
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3 $ cat > t.py <<EOF
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4 > from __future__ import absolute_import, print_function
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5 > import time
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6 > from mercurial import (
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7 > error,
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8 > registrar,
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9 > ui as uimod,
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10 > worker,
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11 > )
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12 > def abort(ui, args):
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13 > if args[0] == 0:
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14 > # by first worker for test stability
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15 > raise error.Abort(b'known exception')
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16 > return runme(ui, [])
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17 > def exc(ui, args):
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18 > if args[0] == 0:
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19 > # by first worker for test stability
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20 > raise Exception('unknown exception')
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21 > return runme(ui, [])
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22 > def runme(ui, args):
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23 > for arg in args:
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24 > ui.status(b'run\n')
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25 > yield 1, arg
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26 > time.sleep(0.1) # easier to trigger killworkers code path
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27 > functable = {
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28 > b'abort': abort,
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29 > b'exc': exc,
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30 > b'runme': runme,
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31 > }
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32 > cmdtable = {}
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33 > command = registrar.command(cmdtable)
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34 > @command(b'test', [], b'hg test [COST] [FUNC]')
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35 > def t(ui, repo, cost=1.0, func=b'runme'):
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36 > cost = float(cost)
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37 > func = functable[func]
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38 > ui.status(b'start\n')
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39 > runs = worker.worker(ui, cost, func, (ui,), range(8))
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40 > for n, i in runs:
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41 > pass
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42 > ui.status(b'done\n')
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43 > EOF
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44 $ abspath=`pwd`/t.py
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45 $ hg init
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46
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47 Run tests with worker enable by forcing a heigh cost
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48
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49 $ hg --config "extensions.t=$abspath" test 100000.0
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50 start
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51 run
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52 run
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53 run
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54 run
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55 run
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56 run
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57 run
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58 run
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59 done
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60
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61 Run tests without worker by forcing a low cost
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62
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63 $ hg --config "extensions.t=$abspath" test 0.0000001
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64 start
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65 run
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66 run
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67 run
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68 run
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69 run
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70 run
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71 run
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72 run
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73 done
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74
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75 #if no-windows
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76
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77 Known exception should be caught, but printed if --traceback is enabled
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78
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79 $ hg --config "extensions.t=$abspath" --config 'worker.numcpus=8' \
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80 > test 100000.0 abort 2>&1
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81 start
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82 abort: known exception
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83 [255]
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84
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85 $ hg --config "extensions.t=$abspath" --config 'worker.numcpus=8' \
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86 > test 100000.0 abort --traceback 2>&1 | egrep '^(SystemExit|Abort)'
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87 Abort: known exception
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88 SystemExit: 255
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89
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90 Traceback must be printed for unknown exceptions
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91
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92 $ hg --config "extensions.t=$abspath" --config 'worker.numcpus=8' \
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93 > test 100000.0 exc 2>&1 | grep '^Exception'
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94 Exception: unknown exception
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95
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96 Workers should not do cleanups in all cases
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97
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98 $ cat > $TESTTMP/detectcleanup.py <<EOF
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99 > from __future__ import absolute_import
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100 > import atexit
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101 > import os
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102 > import time
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103 > oldfork = os.fork
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104 > count = 0
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105 > parentpid = os.getpid()
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106 > def delayedfork():
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107 > global count
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108 > count += 1
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109 > pid = oldfork()
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110 > # make it easier to test SIGTERM hitting other workers when they have
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111 > # not set up error handling yet.
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112 > if count > 1 and pid == 0:
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113 > time.sleep(0.1)
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114 > return pid
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115 > os.fork = delayedfork
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116 > def cleanup():
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117 > if os.getpid() != parentpid:
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118 > os.write(1, 'should never happen\n')
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119 > atexit.register(cleanup)
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120 > EOF
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121
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122 $ hg --config "extensions.t=$abspath" --config worker.numcpus=8 --config \
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123 > "extensions.d=$TESTTMP/detectcleanup.py" test 100000 abort
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124 start
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125 abort: known exception
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126 [255]
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127
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128 #endif