Andrew's git / gitweb.git / t/test-lib.sh
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t / test-lib.shon commit Merge branch 'maint' (25487f8)
   1#!/bin/sh
   2#
   3# Copyright (c) 2005 Junio C Hamano
   4#
   5
   6# Keep the original TERM for say_color
   7ORIGINAL_TERM=$TERM
   8
   9# For repeatability, reset the environment to known value.
  10LANG=C
  11LC_ALL=C
  12PAGER=cat
  13TZ=UTC
  14TERM=dumb
  15export LANG LC_ALL PAGER TERM TZ
  16EDITOR=:
  17VISUAL=:
  18unset GIT_EDITOR
  19unset AUTHOR_DATE
  20unset AUTHOR_EMAIL
  21unset AUTHOR_NAME
  22unset COMMIT_AUTHOR_EMAIL
  23unset COMMIT_AUTHOR_NAME
  24unset EMAIL
  25unset GIT_ALTERNATE_OBJECT_DIRECTORIES
  26unset GIT_AUTHOR_DATE
  27GIT_AUTHOR_EMAIL=author@example.com
  28GIT_AUTHOR_NAME='A U Thor'
  29unset GIT_COMMITTER_DATE
  30GIT_COMMITTER_EMAIL=committer@example.com
  31GIT_COMMITTER_NAME='C O Mitter'
  32unset GIT_DIFF_OPTS
  33unset GIT_DIR
  34unset GIT_WORK_TREE
  35unset GIT_EXTERNAL_DIFF
  36unset GIT_INDEX_FILE
  37unset GIT_OBJECT_DIRECTORY
  38unset GIT_CEILING_DIRECTORIES
  39unset SHA1_FILE_DIRECTORIES
  40unset SHA1_FILE_DIRECTORY
  41GIT_MERGE_VERBOSITY=5
  42export GIT_MERGE_VERBOSITY
  43export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  44export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  45export EDITOR VISUAL
  46GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
  47
  48# Protect ourselves from common misconfiguration to export
  49# CDPATH into the environment
  50unset CDPATH
  51
  52case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  53        1|2|true)
  54                echo "* warning: Some tests will not work if GIT_TRACE" \
  55                        "is set as to trace on STDERR ! *"
  56                echo "* warning: Please set GIT_TRACE to something" \
  57                        "other than 1, 2 or true ! *"
  58                ;;
  59esac
  60
  61# Each test should start with something like this, after copyright notices:
  62#
  63# test_description='Description of this test...
  64# This test checks if command xyzzy does the right thing...
  65# '
  66# . ./test-lib.sh
  67[ "x$ORIGINAL_TERM" != "xdumb" ] && (
  68                TERM=$ORIGINAL_TERM &&
  69                export TERM &&
  70                [ -t 1 ] &&
  71                tput bold >/dev/null 2>&1 &&
  72                tput setaf 1 >/dev/null 2>&1 &&
  73                tput sgr0 >/dev/null 2>&1
  74        ) &&
  75        color=t
  76
  77while test "$#" -ne 0
  78do
  79        case "$1" in
  80        -d|--d|--de|--deb|--debu|--debug)
  81                debug=t; shift ;;
  82        -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
  83                immediate=t; shift ;;
  84        -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
  85                GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
  86        -h|--h|--he|--hel|--help)
  87                help=t; shift ;;
  88        -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
  89                verbose=t; shift ;;
  90        -q|--q|--qu|--qui|--quie|--quiet)
  91                quiet=t; shift ;;
  92        --no-color)
  93                color=; shift ;;
  94        --no-python)
  95                # noop now...
  96                shift ;;
  97        *)
  98                break ;;
  99        esac
 100done
 101
 102if test -n "$color"; then
 103        say_color () {
 104                (
 105                TERM=$ORIGINAL_TERM
 106                export TERM
 107                case "$1" in
 108                        error) tput bold; tput setaf 1;; # bold red
 109                        skip)  tput bold; tput setaf 2;; # bold green
 110                        pass)  tput setaf 2;;            # green
 111                        info)  tput setaf 3;;            # brown
 112                        *) test -n "$quiet" && return;;
 113                esac
 114                shift
 115                printf "* %s" "$*"
 116                tput sgr0
 117                echo
 118                )
 119        }
 120else
 121        say_color() {
 122                test -z "$1" && test -n "$quiet" && return
 123                shift
 124                echo "* $*"
 125        }
 126fi
 127
 128error () {
 129        say_color error "error: $*"
 130        trap - EXIT
 131        exit 1
 132}
 133
 134say () {
 135        say_color info "$*"
 136}
 137
 138test "${test_description}" != "" ||
 139error "Test script did not set test_description."
 140
 141if test "$help" = "t"
 142then
 143        echo "$test_description"
 144        exit 0
 145fi
 146
 147exec 5>&1
 148if test "$verbose" = "t"
 149then
 150        exec 4>&2 3>&1
 151else
 152        exec 4>/dev/null 3>/dev/null
 153fi
 154
 155test_failure=0
 156test_count=0
 157test_fixed=0
 158test_broken=0
 159test_success=0
 160
 161die () {
 162        echo >&5 "FATAL: Unexpected exit with code $?"
 163        exit 1
 164}
 165
 166trap 'die' EXIT
 167
 168# The semantics of the editor variables are that of invoking
 169# sh -c "$EDITOR \"$@\"" files ...
 170#
 171# If our trash directory contains shell metacharacters, they will be
 172# interpreted if we just set $EDITOR directly, so do a little dance with
 173# environment variables to work around this.
 174#
 175# In particular, quoting isn't enough, as the path may contain the same quote
 176# that we're using.
 177test_set_editor () {
 178        FAKE_EDITOR="$1"
 179        export FAKE_EDITOR
 180        VISUAL='"$FAKE_EDITOR"'
 181        export VISUAL
 182}
 183
 184test_tick () {
 185        if test -z "${test_tick+set}"
 186        then
 187                test_tick=1112911993
 188        else
 189                test_tick=$(($test_tick + 60))
 190        fi
 191        GIT_COMMITTER_DATE="$test_tick -0700"
 192        GIT_AUTHOR_DATE="$test_tick -0700"
 193        export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 194}
 195
 196# Call test_commit with the arguments "<message> [<file> [<contents>]]"
 197#
 198# This will commit a file with the given contents and the given commit
 199# message.  It will also add a tag with <message> as name.
 200#
 201# Both <file> and <contents> default to <message>.
 202
 203test_commit () {
 204        file=${2:-"$1.t"}
 205        echo "${3-$1}" > "$file" &&
 206        git add "$file" &&
 207        test_tick &&
 208        git commit -m "$1" &&
 209        git tag "$1"
 210}
 211
 212# Call test_merge with the arguments "<message> <commit>", where <commit>
 213# can be a tag pointing to the commit-to-merge.
 214
 215test_merge () {
 216        test_tick &&
 217        git merge -m "$1" "$2" &&
 218        git tag "$1"
 219}
 220
 221# You are not expected to call test_ok_ and test_failure_ directly, use
 222# the text_expect_* functions instead.
 223
 224test_ok_ () {
 225        test_count=$(expr "$test_count" + 1)
 226        test_success=$(expr "$test_success" + 1)
 227        say_color "" "  ok $test_count: $@"
 228}
 229
 230test_failure_ () {
 231        test_count=$(expr "$test_count" + 1)
 232        test_failure=$(expr "$test_failure" + 1);
 233        say_color error "FAIL $test_count: $1"
 234        shift
 235        echo "$@" | sed -e 's/^/        /'
 236        test "$immediate" = "" || { trap - EXIT; exit 1; }
 237}
 238
 239test_known_broken_ok_ () {
 240        test_count=$(expr "$test_count" + 1)
 241        test_fixed=$(($test_fixed+1))
 242        say_color "" "  FIXED $test_count: $@"
 243}
 244
 245test_known_broken_failure_ () {
 246        test_count=$(expr "$test_count" + 1)
 247        test_broken=$(($test_broken+1))
 248        say_color skip "  still broken $test_count: $@"
 249}
 250
 251test_debug () {
 252        test "$debug" = "" || eval "$1"
 253}
 254
 255test_run_ () {
 256        eval >&3 2>&4 "$1"
 257        eval_ret="$?"
 258        return 0
 259}
 260
 261test_skip () {
 262        this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
 263        this_test="$this_test.$(expr "$test_count" + 1)"
 264        to_skip=
 265        for skp in $GIT_SKIP_TESTS
 266        do
 267                case "$this_test" in
 268                $skp)
 269                        to_skip=t
 270                esac
 271        done
 272        case "$to_skip" in
 273        t)
 274                say_color skip >&3 "skipping test: $@"
 275                test_count=$(expr "$test_count" + 1)
 276                say_color skip "skip $test_count: $1"
 277                : true
 278                ;;
 279        *)
 280                false
 281                ;;
 282        esac
 283}
 284
 285test_expect_failure () {
 286        test "$#" = 2 ||
 287        error "bug in the test script: not 2 parameters to test-expect-failure"
 288        if ! test_skip "$@"
 289        then
 290                say >&3 "checking known breakage: $2"
 291                test_run_ "$2"
 292                if [ "$?" = 0 -a "$eval_ret" = 0 ]
 293                then
 294                        test_known_broken_ok_ "$1"
 295                else
 296                    test_known_broken_failure_ "$1"
 297                fi
 298        fi
 299        echo >&3 ""
 300}
 301
 302test_expect_success () {
 303        test "$#" = 2 ||
 304        error "bug in the test script: not 2 parameters to test-expect-success"
 305        if ! test_skip "$@"
 306        then
 307                say >&3 "expecting success: $2"
 308                test_run_ "$2"
 309                if [ "$?" = 0 -a "$eval_ret" = 0 ]
 310                then
 311                        test_ok_ "$1"
 312                else
 313                        test_failure_ "$@"
 314                fi
 315        fi
 316        echo >&3 ""
 317}
 318
 319test_expect_code () {
 320        test "$#" = 3 ||
 321        error "bug in the test script: not 3 parameters to test-expect-code"
 322        if ! test_skip "$@"
 323        then
 324                say >&3 "expecting exit code $1: $3"
 325                test_run_ "$3"
 326                if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 327                then
 328                        test_ok_ "$2"
 329                else
 330                        test_failure_ "$@"
 331                fi
 332        fi
 333        echo >&3 ""
 334}
 335
 336# test_external runs external test scripts that provide continuous
 337# test output about their progress, and succeeds/fails on
 338# zero/non-zero exit code.  It outputs the test output on stdout even
 339# in non-verbose mode, and announces the external script with "* run
 340# <n>: ..." before running it.  When providing relative paths, keep in
 341# mind that all scripts run in "trash directory".
 342# Usage: test_external description command arguments...
 343# Example: test_external 'Perl API' perl ../path/to/test.pl
 344test_external () {
 345        test "$#" -eq 3 ||
 346        error >&5 "bug in the test script: not 3 parameters to test_external"
 347        descr="$1"
 348        shift
 349        if ! test_skip "$descr" "$@"
 350        then
 351                # Announce the script to reduce confusion about the
 352                # test output that follows.
 353                say_color "" " run $(expr "$test_count" + 1): $descr ($*)"
 354                # Run command; redirect its stderr to &4 as in
 355                # test_run_, but keep its stdout on our stdout even in
 356                # non-verbose mode.
 357                "$@" 2>&4
 358                if [ "$?" = 0 ]
 359                then
 360                        test_ok_ "$descr"
 361                else
 362                        test_failure_ "$descr" "$@"
 363                fi
 364        fi
 365}
 366
 367# Like test_external, but in addition tests that the command generated
 368# no output on stderr.
 369test_external_without_stderr () {
 370        # The temporary file has no (and must have no) security
 371        # implications.
 372        tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
 373        stderr="$tmp/git-external-stderr.$$.tmp"
 374        test_external "$@" 4> "$stderr"
 375        [ -f "$stderr" ] || error "Internal error: $stderr disappeared."
 376        descr="no stderr: $1"
 377        shift
 378        say >&3 "expecting no stderr from previous command"
 379        if [ ! -s "$stderr" ]; then
 380                rm "$stderr"
 381                test_ok_ "$descr"
 382        else
 383                if [ "$verbose" = t ]; then
 384                        output=`echo; echo Stderr is:; cat "$stderr"`
 385                else
 386                        output=
 387                fi
 388                # rm first in case test_failure exits.
 389                rm "$stderr"
 390                test_failure_ "$descr" "$@" "$output"
 391        fi
 392}
 393
 394# This is not among top-level (test_expect_success | test_expect_failure)
 395# but is a prefix that can be used in the test script, like:
 396#
 397#       test_expect_success 'complain and die' '
 398#           do something &&
 399#           do something else &&
 400#           test_must_fail git checkout ../outerspace
 401#       '
 402#
 403# Writing this as "! git checkout ../outerspace" is wrong, because
 404# the failure could be due to a segv.  We want a controlled failure.
 405
 406test_must_fail () {
 407        "$@"
 408        test $? -gt 0 -a $? -le 129 -o $? -gt 192
 409}
 410
 411# test_cmp is a helper function to compare actual and expected output.
 412# You can use it like:
 413#
 414#       test_expect_success 'foo works' '
 415#               echo expected >expected &&
 416#               foo >actual &&
 417#               test_cmp expected actual
 418#       '
 419#
 420# This could be written as either "cmp" or "diff -u", but:
 421# - cmp's output is not nearly as easy to read as diff -u
 422# - not all diff versions understand "-u"
 423
 424test_cmp() {
 425        $GIT_TEST_CMP "$@"
 426}
 427
 428# Most tests can use the created repository, but some may need to create more.
 429# Usage: test_create_repo <directory>
 430test_create_repo () {
 431        test "$#" = 1 ||
 432        error "bug in the test script: not 1 parameter to test-create-repo"
 433        owd=`pwd`
 434        repo="$1"
 435        mkdir -p "$repo"
 436        cd "$repo" || error "Cannot setup test environment"
 437        "$GIT_EXEC_PATH/git" init "--template=$GIT_EXEC_PATH/templates/blt/" >&3 2>&4 ||
 438        error "cannot run git init -- have you built things yet?"
 439        mv .git/hooks .git/hooks-disabled
 440        cd "$owd"
 441}
 442
 443test_done () {
 444        trap - EXIT
 445        test_results_dir="$TEST_DIRECTORY/test-results"
 446        mkdir -p "$test_results_dir"
 447        test_results_path="$test_results_dir/${0%-*}-$$"
 448
 449        echo "total $test_count" >> $test_results_path
 450        echo "success $test_success" >> $test_results_path
 451        echo "fixed $test_fixed" >> $test_results_path
 452        echo "broken $test_broken" >> $test_results_path
 453        echo "failed $test_failure" >> $test_results_path
 454        echo "" >> $test_results_path
 455
 456        if test "$test_fixed" != 0
 457        then
 458                say_color pass "fixed $test_fixed known breakage(s)"
 459        fi
 460        if test "$test_broken" != 0
 461        then
 462                say_color error "still have $test_broken known breakage(s)"
 463                msg="remaining $(($test_count-$test_broken)) test(s)"
 464        else
 465                msg="$test_count test(s)"
 466        fi
 467        case "$test_failure" in
 468        0)
 469                # We could:
 470                # cd .. && rm -fr 'trash directory'
 471                # but that means we forbid any tests that use their own
 472                # subdirectory from calling test_done without coming back
 473                # to where they started from.
 474                # The Makefile provided will clean this test area so
 475                # we will leave things as they are.
 476
 477                say_color pass "passed all $msg"
 478
 479                test -d "$remove_trash" &&
 480                cd "$(dirname "$remove_trash")" &&
 481                rm -rf "$(basename "$remove_trash")"
 482
 483                exit 0 ;;
 484
 485        *)
 486                say_color error "failed $test_failure among $msg"
 487                exit 1 ;;
 488
 489        esac
 490}
 491
 492# Test the binaries we have just built.  The tests are kept in
 493# t/ subdirectory and are run in 'trash directory' subdirectory.
 494TEST_DIRECTORY=$(pwd)
 495PATH=$TEST_DIRECTORY/..:$PATH
 496GIT_EXEC_PATH=$(pwd)/..
 497GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
 498unset GIT_CONFIG
 499GIT_CONFIG_NOSYSTEM=1
 500GIT_CONFIG_NOGLOBAL=1
 501export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 502
 503GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
 504export GITPERLLIB
 505test -d ../templates/blt || {
 506        error "You haven't built things yet, have you?"
 507}
 508
 509if ! test -x ../test-chmtime; then
 510        echo >&2 'You need to build test-chmtime:'
 511        echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 512        exit 1
 513fi
 514
 515. ../GIT-BUILD-OPTIONS
 516
 517# Test repository
 518test="trash directory.$(basename "$0" .sh)"
 519test ! -z "$debug" || remove_trash="$TEST_DIRECTORY/$test"
 520rm -fr "$test" || {
 521        trap - EXIT
 522        echo >&5 "FATAL: Cannot prepare test area"
 523        exit 1
 524}
 525
 526test_create_repo "$test"
 527# Use -P to resolve symlinks in our working directory so that the cwd
 528# in subprocesses like git equals our $PWD (for pathname comparisons).
 529cd -P "$test" || exit 1
 530
 531this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
 532for skp in $GIT_SKIP_TESTS
 533do
 534        to_skip=
 535        for skp in $GIT_SKIP_TESTS
 536        do
 537                case "$this_test" in
 538                $skp)
 539                        to_skip=t
 540                esac
 541        done
 542        case "$to_skip" in
 543        t)
 544                say_color skip >&3 "skipping test $this_test altogether"
 545                say_color skip "skip all tests in $this_test"
 546                test_done
 547        esac
 548done