Andrew's git / gitweb.git / t/t0211-trace2-perf.sh
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t / t0211-trace2-perf.shon commit The third batch (8dca754)
   1#!/bin/sh
   2
   3test_description='test trace2 facility (perf target)'
   4. ./test-lib.sh
   5
   6# Turn off any inherited trace2 settings for this test.
   7sane_unset GIT_TRACE2 GIT_TRACE2_PERF GIT_TRACE2_EVENT
   8sane_unset GIT_TRACE2_PERF_BRIEF
   9sane_unset GIT_TRACE2_CONFIG_PARAMS
  10
  11# Add t/helper directory to PATH so that we can use a relative
  12# path to run nested instances of test-tool.exe (see 004child).
  13# This helps with HEREDOC comparisons later.
  14TTDIR="$GIT_BUILD_DIR/t/helper/" && export TTDIR
  15PATH="$TTDIR:$PATH" && export PATH
  16
  17# Warning: use of 'test_cmp' may run test-tool.exe and/or git.exe
  18# Warning: to do the actual diff/comparison, so the HEREDOCs here
  19# Warning: only cover our actual calls to test-tool and/or git.
  20# Warning: So you may see extra lines in artifact files when
  21# Warning: interactively debugging.
  22
  23V=$(git version | sed -e 's/^git version //') && export V
  24
  25# There are multiple trace2 targets: normal, perf, and event.
  26# Trace2 events will/can be written to each active target (subject
  27# to whatever filtering that target decides to do).
  28# Test each target independently.
  29#
  30# Defer setting GIT_TRACE2_PERF until the actual command we want to
  31# test because hidden git and test-tool commands in the test
  32# harness can contaminate our output.
  33
  34# Enable "brief" feature which turns off the prefix:
  35#     "<clock> <file>:<line> | <nr_parents> | "
  36GIT_TRACE2_PERF_BRIEF=1 && export GIT_TRACE2_PERF_BRIEF
  37
  38# Repeat some of the t0210 tests using the perf target stream instead of
  39# the normal stream.
  40#
  41# Tokens here of the form _FIELD_ have been replaced in the observed output.
  42
  43# Verb 001return
  44#
  45# Implicit return from cmd_<verb> function propagates <code>.
  46
  47test_expect_success 'perf stream, return code 0' '
  48        test_when_finished "rm trace.perf actual expect" &&
  49        GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 001return 0 &&
  50        perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
  51        cat >expect <<-EOF &&
  52                d0|main|version|||||$V
  53                d0|main|start||_T_ABS_|||_EXE_ trace2 001return 0
  54                d0|main|cmd_name|||||trace2 (trace2)
  55                d0|main|exit||_T_ABS_|||code:0
  56                d0|main|atexit||_T_ABS_|||code:0
  57        EOF
  58        test_cmp expect actual
  59'
  60
  61test_expect_success 'perf stream, return code 1' '
  62        test_when_finished "rm trace.perf actual expect" &&
  63        test_must_fail env GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 001return 1 &&
  64        perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
  65        cat >expect <<-EOF &&
  66                d0|main|version|||||$V
  67                d0|main|start||_T_ABS_|||_EXE_ trace2 001return 1
  68                d0|main|cmd_name|||||trace2 (trace2)
  69                d0|main|exit||_T_ABS_|||code:1
  70                d0|main|atexit||_T_ABS_|||code:1
  71        EOF
  72        test_cmp expect actual
  73'
  74
  75# Verb 003error
  76#
  77# To the above, add multiple 'error <msg>' events
  78
  79test_expect_success 'perf stream, error event' '
  80        test_when_finished "rm trace.perf actual expect" &&
  81        GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 003error "hello world" "this is a test" &&
  82        perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
  83        cat >expect <<-EOF &&
  84                d0|main|version|||||$V
  85                d0|main|start||_T_ABS_|||_EXE_ trace2 003error '\''hello world'\'' '\''this is a test'\''
  86                d0|main|cmd_name|||||trace2 (trace2)
  87                d0|main|error|||||hello world
  88                d0|main|error|||||this is a test
  89                d0|main|exit||_T_ABS_|||code:0
  90                d0|main|atexit||_T_ABS_|||code:0
  91        EOF
  92        test_cmp expect actual
  93'
  94
  95# Verb 004child
  96#
  97# Test nested spawning of child processes.
  98#
  99# Conceptually, this looks like:
 100#    P1: TT trace2 004child
 101#    P2: |--- TT trace2 004child
 102#    P3:      |--- TT trace2 001return 0
 103#
 104# Which should generate events:
 105#    P1: version
 106#    P1: start
 107#    P1: cmd_name
 108#    P1: child_start
 109#        P2: version
 110#        P2: start
 111#        P2: cmd_name
 112#        P2: child_start
 113#            P3: version
 114#            P3: start
 115#            P3: cmd_name
 116#            P3: exit
 117#            P3: atexit
 118#        P2: child_exit
 119#        P2: exit
 120#        P2: atexit
 121#    P1: child_exit
 122#    P1: exit
 123#    P1: atexit
 124
 125test_expect_success 'perf stream, child processes' '
 126        test_when_finished "rm trace.perf actual expect" &&
 127        GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 004child test-tool trace2 004child test-tool trace2 001return 0 &&
 128        perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
 129        cat >expect <<-EOF &&
 130                d0|main|version|||||$V
 131                d0|main|start||_T_ABS_|||_EXE_ trace2 004child test-tool trace2 004child test-tool trace2 001return 0
 132                d0|main|cmd_name|||||trace2 (trace2)
 133                d0|main|child_start||_T_ABS_|||[ch0] class:? argv: test-tool trace2 004child test-tool trace2 001return 0
 134                d1|main|version|||||$V
 135                d1|main|start||_T_ABS_|||_EXE_ trace2 004child test-tool trace2 001return 0
 136                d1|main|cmd_name|||||trace2 (trace2/trace2)
 137                d1|main|child_start||_T_ABS_|||[ch0] class:? argv: test-tool trace2 001return 0
 138                d2|main|version|||||$V
 139                d2|main|start||_T_ABS_|||_EXE_ trace2 001return 0
 140                d2|main|cmd_name|||||trace2 (trace2/trace2/trace2)
 141                d2|main|exit||_T_ABS_|||code:0
 142                d2|main|atexit||_T_ABS_|||code:0
 143                d1|main|child_exit||_T_ABS_|_T_REL_||[ch0] pid:_PID_ code:0
 144                d1|main|exit||_T_ABS_|||code:0
 145                d1|main|atexit||_T_ABS_|||code:0
 146                d0|main|child_exit||_T_ABS_|_T_REL_||[ch0] pid:_PID_ code:0
 147                d0|main|exit||_T_ABS_|||code:0
 148                d0|main|atexit||_T_ABS_|||code:0
 149        EOF
 150        test_cmp expect actual
 151'
 152
 153sane_unset GIT_TRACE2_PERF_BRIEF
 154
 155# Now test without environment variables and get all Trace2 settings
 156# from the global config.
 157
 158test_expect_success 'using global config, perf stream, return code 0' '
 159        test_when_finished "rm trace.perf actual expect" &&
 160        test_config_global trace2.perfBrief 1 &&
 161        test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&
 162        test-tool trace2 001return 0 &&
 163        perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
 164        cat >expect <<-EOF &&
 165                d0|main|version|||||$V
 166                d0|main|start||_T_ABS_|||_EXE_ trace2 001return 0
 167                d0|main|cmd_name|||||trace2 (trace2)
 168                d0|main|exit||_T_ABS_|||code:0
 169                d0|main|atexit||_T_ABS_|||code:0
 170        EOF
 171        test_cmp expect actual
 172'
 173
 174test_done