| # Library of functions shared by all tests scripts, included by |
| # test-lib.sh. |
| # |
| # Copyright (c) 2005 Junio C Hamano |
| # |
| # This program is free software: you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation, either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see http://www.gnu.org/licenses/ . |
| |
| # The semantics of the editor variables are that of invoking |
| # sh -c "$EDITOR \"$@\"" files ... |
| # |
| # If our trash directory contains shell metacharacters, they will be |
| # interpreted if we just set $EDITOR directly, so do a little dance with |
| # environment variables to work around this. |
| # |
| # In particular, quoting isn't enough, as the path may contain the same quote |
| # that we're using. |
| test_set_editor () { |
| FAKE_EDITOR="$1" |
| export FAKE_EDITOR |
| EDITOR='"$FAKE_EDITOR"' |
| export EDITOR |
| } |
| |
| test_set_index_version () { |
| GIT_INDEX_VERSION="$1" |
| export GIT_INDEX_VERSION |
| } |
| |
| test_decode_color () { |
| awk ' |
| function name(n) { |
| if (n == 0) return "RESET"; |
| if (n == 1) return "BOLD"; |
| if (n == 30) return "BLACK"; |
| if (n == 31) return "RED"; |
| if (n == 32) return "GREEN"; |
| if (n == 33) return "YELLOW"; |
| if (n == 34) return "BLUE"; |
| if (n == 35) return "MAGENTA"; |
| if (n == 36) return "CYAN"; |
| if (n == 37) return "WHITE"; |
| if (n == 40) return "BLACK"; |
| if (n == 41) return "BRED"; |
| if (n == 42) return "BGREEN"; |
| if (n == 43) return "BYELLOW"; |
| if (n == 44) return "BBLUE"; |
| if (n == 45) return "BMAGENTA"; |
| if (n == 46) return "BCYAN"; |
| if (n == 47) return "BWHITE"; |
| } |
| { |
| while (match($0, /\033\[[0-9;]*m/) != 0) { |
| printf "%s<", substr($0, 1, RSTART-1); |
| codes = substr($0, RSTART+2, RLENGTH-3); |
| if (length(codes) == 0) |
| printf "%s", name(0) |
| else { |
| n = split(codes, ary, ";"); |
| sep = ""; |
| for (i = 1; i <= n; i++) { |
| printf "%s%s", sep, name(ary[i]); |
| sep = ";" |
| } |
| } |
| printf ">"; |
| $0 = substr($0, RSTART + RLENGTH, length($0) - RSTART - RLENGTH + 1); |
| } |
| print |
| } |
| ' |
| } |
| |
| lf_to_nul () { |
| perl -pe 'y/\012/\000/' |
| } |
| |
| nul_to_q () { |
| perl -pe 'y/\000/Q/' |
| } |
| |
| q_to_nul () { |
| perl -pe 'y/Q/\000/' |
| } |
| |
| q_to_cr () { |
| tr Q '\015' |
| } |
| |
| q_to_tab () { |
| tr Q '\011' |
| } |
| |
| qz_to_tab_space () { |
| tr QZ '\011\040' |
| } |
| |
| append_cr () { |
| sed -e 's/$/Q/' | tr Q '\015' |
| } |
| |
| remove_cr () { |
| tr '\015' Q | sed -e 's/Q$//' |
| } |
| |
| # In some bourne shell implementations, the "unset" builtin returns |
| # nonzero status when a variable to be unset was not set in the first |
| # place. |
| # |
| # Use sane_unset when that should not be considered an error. |
| |
| sane_unset () { |
| unset "$@" |
| return 0 |
| } |
| |
| test_tick () { |
| if test -z "${test_tick+set}" |
| then |
| test_tick=1112911993 |
| else |
| test_tick=$(($test_tick + 60)) |
| fi |
| GIT_COMMITTER_DATE="$test_tick -0700" |
| GIT_AUTHOR_DATE="$test_tick -0700" |
| export GIT_COMMITTER_DATE GIT_AUTHOR_DATE |
| } |
| |
| # Stop execution and start a shell. This is useful for debugging tests and |
| # only makes sense together with "-v". |
| # |
| # Be sure to remove all invocations of this command before submitting. |
| |
| test_pause () { |
| if test "$verbose" = t; then |
| "$SHELL_PATH" <&6 >&3 2>&4 |
| else |
| error >&5 "test_pause requires --verbose" |
| fi |
| } |
| |
| # Wrap git in gdb. Adding this to a command can make it easier to |
| # understand what is going on in a failing test. |
| # |
| # Example: "debug git checkout master". |
| debug () { |
| GIT_TEST_GDB=1 "$@" |
| } |
| |
| # Call test_commit with the arguments "<message> [<file> [<contents> [<tag>]]]" |
| # |
| # This will commit a file with the given contents and the given commit |
| # message, and tag the resulting commit with the given tag name. |
| # |
| # <file>, <contents>, and <tag> all default to <message>. |
| |
| test_commit () { |
| notick= && |
| signoff= && |
| while test $# != 0 |
| do |
| case "$1" in |
| --notick) |
| notick=yes |
| ;; |
| --signoff) |
| signoff="$1" |
| ;; |
| *) |
| break |
| ;; |
| esac |
| shift |
| done && |
| file=${2:-"$1.t"} && |
| echo "${3-$1}" > "$file" && |
| git add "$file" && |
| if test -z "$notick" |
| then |
| test_tick |
| fi && |
| git commit $signoff -m "$1" && |
| git tag "${4:-$1}" |
| } |
| |
| # Call test_merge with the arguments "<message> <commit>", where <commit> |
| # can be a tag pointing to the commit-to-merge. |
| |
| test_merge () { |
| test_tick && |
| git merge -m "$1" "$2" && |
| git tag "$1" |
| } |
| |
| # This function helps systems where core.filemode=false is set. |
| # Use it instead of plain 'chmod +x' to set or unset the executable bit |
| # of a file in the working directory and add it to the index. |
| |
| test_chmod () { |
| chmod "$@" && |
| git update-index --add "--chmod=$@" |
| } |
| |
| # Unset a configuration variable, but don't fail if it doesn't exist. |
| test_unconfig () { |
| config_dir= |
| if test "$1" = -C |
| then |
| shift |
| config_dir=$1 |
| shift |
| fi |
| git ${config_dir:+-C "$config_dir"} config --unset-all "$@" |
| config_status=$? |
| case "$config_status" in |
| 5) # ok, nothing to unset |
| config_status=0 |
| ;; |
| esac |
| return $config_status |
| } |
| |
| # Set git config, automatically unsetting it after the test is over. |
| test_config () { |
| config_dir= |
| if test "$1" = -C |
| then |
| shift |
| config_dir=$1 |
| shift |
| fi |
| test_when_finished "test_unconfig ${config_dir:+-C '$config_dir'} '$1'" && |
| git ${config_dir:+-C "$config_dir"} config "$@" |
| } |
| |
| test_config_global () { |
| test_when_finished "test_unconfig --global '$1'" && |
| git config --global "$@" |
| } |
| |
| write_script () { |
| { |
| echo "#!${2-"$SHELL_PATH"}" && |
| cat |
| } >"$1" && |
| chmod +x "$1" |
| } |
| |
| # Use test_set_prereq to tell that a particular prerequisite is available. |
| # The prerequisite can later be checked for in two ways: |
| # |
| # - Explicitly using test_have_prereq. |
| # |
| # - Implicitly by specifying the prerequisite tag in the calls to |
| # test_expect_{success,failure,code}. |
| # |
| # The single parameter is the prerequisite tag (a simple word, in all |
| # capital letters by convention). |
| |
| test_set_prereq () { |
| satisfied_prereq="$satisfied_prereq$1 " |
| } |
| satisfied_prereq=" " |
| lazily_testable_prereq= lazily_tested_prereq= |
| |
| # Usage: test_lazy_prereq PREREQ 'script' |
| test_lazy_prereq () { |
| lazily_testable_prereq="$lazily_testable_prereq$1 " |
| eval test_prereq_lazily_$1=\$2 |
| } |
| |
| test_run_lazy_prereq_ () { |
| script=' |
| mkdir -p "$TRASH_DIRECTORY/prereq-test-dir" && |
| ( |
| cd "$TRASH_DIRECTORY/prereq-test-dir" &&'"$2"' |
| )' |
| say >&3 "checking prerequisite: $1" |
| say >&3 "$script" |
| test_eval_ "$script" |
| eval_ret=$? |
| rm -rf "$TRASH_DIRECTORY/prereq-test-dir" |
| if test "$eval_ret" = 0; then |
| say >&3 "prerequisite $1 ok" |
| else |
| say >&3 "prerequisite $1 not satisfied" |
| fi |
| return $eval_ret |
| } |
| |
| test_have_prereq () { |
| # prerequisites can be concatenated with ',' |
| save_IFS=$IFS |
| IFS=, |
| set -- $* |
| IFS=$save_IFS |
| |
| total_prereq=0 |
| ok_prereq=0 |
| missing_prereq= |
| |
| for prerequisite |
| do |
| case "$prerequisite" in |
| !*) |
| negative_prereq=t |
| prerequisite=${prerequisite#!} |
| ;; |
| *) |
| negative_prereq= |
| esac |
| |
| case " $lazily_tested_prereq " in |
| *" $prerequisite "*) |
| ;; |
| *) |
| case " $lazily_testable_prereq " in |
| *" $prerequisite "*) |
| eval "script=\$test_prereq_lazily_$prerequisite" && |
| if test_run_lazy_prereq_ "$prerequisite" "$script" |
| then |
| test_set_prereq $prerequisite |
| fi |
| lazily_tested_prereq="$lazily_tested_prereq$prerequisite " |
| esac |
| ;; |
| esac |
| |
| total_prereq=$(($total_prereq + 1)) |
| case "$satisfied_prereq" in |
| *" $prerequisite "*) |
| satisfied_this_prereq=t |
| ;; |
| *) |
| satisfied_this_prereq= |
| esac |
| |
| case "$satisfied_this_prereq,$negative_prereq" in |
| t,|,t) |
| ok_prereq=$(($ok_prereq + 1)) |
| ;; |
| *) |
| # Keep a list of missing prerequisites; restore |
| # the negative marker if necessary. |
| prerequisite=${negative_prereq:+!}$prerequisite |
| if test -z "$missing_prereq" |
| then |
| missing_prereq=$prerequisite |
| else |
| missing_prereq="$prerequisite,$missing_prereq" |
| fi |
| esac |
| done |
| |
| test $total_prereq = $ok_prereq |
| } |
| |
| test_declared_prereq () { |
| case ",$test_prereq," in |
| *,$1,*) |
| return 0 |
| ;; |
| esac |
| return 1 |
| } |
| |
| test_verify_prereq () { |
| test -z "$test_prereq" || |
| expr >/dev/null "$test_prereq" : '[A-Z0-9_,!]*$' || |
| error "bug in the test script: '$test_prereq' does not look like a prereq" |
| } |
| |
| test_expect_failure () { |
| test_start_ |
| test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq= |
| test "$#" = 2 || |
| error "bug in the test script: not 2 or 3 parameters to test-expect-failure" |
| test_verify_prereq |
| export test_prereq |
| if ! test_skip "$@" |
| then |
| say >&3 "checking known breakage: $2" |
| if test_run_ "$2" expecting_failure |
| then |
| test_known_broken_ok_ "$1" |
| else |
| test_known_broken_failure_ "$1" |
| fi |
| fi |
| test_finish_ |
| } |
| |
| test_expect_success () { |
| test_start_ |
| test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq= |
| test "$#" = 2 || |
| error "bug in the test script: not 2 or 3 parameters to test-expect-success" |
| test_verify_prereq |
| export test_prereq |
| if ! test_skip "$@" |
| then |
| say >&3 "expecting success: $2" |
| if test_run_ "$2" |
| then |
| test_ok_ "$1" |
| else |
| test_failure_ "$@" |
| fi |
| fi |
| test_finish_ |
| } |
| |
| # test_external runs external test scripts that provide continuous |
| # test output about their progress, and succeeds/fails on |
| # zero/non-zero exit code. It outputs the test output on stdout even |
| # in non-verbose mode, and announces the external script with "# run |
| # <n>: ..." before running it. When providing relative paths, keep in |
| # mind that all scripts run in "trash directory". |
| # Usage: test_external description command arguments... |
| # Example: test_external 'Perl API' perl ../path/to/test.pl |
| test_external () { |
| test "$#" = 4 && { test_prereq=$1; shift; } || test_prereq= |
| test "$#" = 3 || |
| error >&5 "bug in the test script: not 3 or 4 parameters to test_external" |
| descr="$1" |
| shift |
| test_verify_prereq |
| export test_prereq |
| if ! test_skip "$descr" "$@" |
| then |
| # Announce the script to reduce confusion about the |
| # test output that follows. |
| say_color "" "# run $test_count: $descr ($*)" |
| # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG |
| # to be able to use them in script |
| export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG |
| # Run command; redirect its stderr to &4 as in |
| # test_run_, but keep its stdout on our stdout even in |
| # non-verbose mode. |
| "$@" 2>&4 |
| if test "$?" = 0 |
| then |
| if test $test_external_has_tap -eq 0; then |
| test_ok_ "$descr" |
| else |
| say_color "" "# test_external test $descr was ok" |
| test_success=$(($test_success + 1)) |
| fi |
| else |
| if test $test_external_has_tap -eq 0; then |
| test_failure_ "$descr" "$@" |
| else |
| say_color error "# test_external test $descr failed: $@" |
| test_failure=$(($test_failure + 1)) |
| fi |
| fi |
| fi |
| } |
| |
| # Like test_external, but in addition tests that the command generated |
| # no output on stderr. |
| test_external_without_stderr () { |
| # The temporary file has no (and must have no) security |
| # implications. |
| tmp=${TMPDIR:-/tmp} |
| stderr="$tmp/git-external-stderr.$$.tmp" |
| test_external "$@" 4> "$stderr" |
| test -f "$stderr" || error "Internal error: $stderr disappeared." |
| descr="no stderr: $1" |
| shift |
| say >&3 "# expecting no stderr from previous command" |
| if test ! -s "$stderr" |
| then |
| rm "$stderr" |
| |
| if test $test_external_has_tap -eq 0; then |
| test_ok_ "$descr" |
| else |
| say_color "" "# test_external_without_stderr test $descr was ok" |
| test_success=$(($test_success + 1)) |
| fi |
| else |
| if test "$verbose" = t |
| then |
| output=$(echo; echo "# Stderr is:"; cat "$stderr") |
| else |
| output= |
| fi |
| # rm first in case test_failure exits. |
| rm "$stderr" |
| if test $test_external_has_tap -eq 0; then |
| test_failure_ "$descr" "$@" "$output" |
| else |
| say_color error "# test_external_without_stderr test $descr failed: $@: $output" |
| test_failure=$(($test_failure + 1)) |
| fi |
| fi |
| } |
| |
| # debugging-friendly alternatives to "test [-f|-d|-e]" |
| # The commands test the existence or non-existence of $1. $2 can be |
| # given to provide a more precise diagnosis. |
| test_path_is_file () { |
| if ! test -f "$1" |
| then |
| echo "File $1 doesn't exist. $2" |
| false |
| fi |
| } |
| |
| test_path_is_dir () { |
| if ! test -d "$1" |
| then |
| echo "Directory $1 doesn't exist. $2" |
| false |
| fi |
| } |
| |
| # Check if the directory exists and is empty as expected, barf otherwise. |
| test_dir_is_empty () { |
| test_path_is_dir "$1" && |
| if test -n "$(ls -a1 "$1" | egrep -v '^\.\.?$')" |
| then |
| echo "Directory '$1' is not empty, it contains:" |
| ls -la "$1" |
| return 1 |
| fi |
| } |
| |
| test_path_is_missing () { |
| if test -e "$1" |
| then |
| echo "Path exists:" |
| ls -ld "$1" |
| if test $# -ge 1 |
| then |
| echo "$*" |
| fi |
| false |
| fi |
| } |
| |
| # test_line_count checks that a file has the number of lines it |
| # ought to. For example: |
| # |
| # test_expect_success 'produce exactly one line of output' ' |
| # do something >output && |
| # test_line_count = 1 output |
| # ' |
| # |
| # is like "test $(wc -l <output) = 1" except that it passes the |
| # output through when the number of lines is wrong. |
| |
| test_line_count () { |
| if test $# != 3 |
| then |
| error "bug in the test script: not 3 parameters to test_line_count" |
| elif ! test $(wc -l <"$3") "$1" "$2" |
| then |
| echo "test_line_count: line count for $3 !$1 $2" |
| cat "$3" |
| return 1 |
| fi |
| } |
| |
| # Returns success if a comma separated string of keywords ($1) contains a |
| # given keyword ($2). |
| # Examples: |
| # `list_contains "foo,bar" bar` returns 0 |
| # `list_contains "foo" bar` returns 1 |
| |
| list_contains () { |
| case ",$1," in |
| *,$2,*) |
| return 0 |
| ;; |
| esac |
| return 1 |
| } |
| |
| # This is not among top-level (test_expect_success | test_expect_failure) |
| # but is a prefix that can be used in the test script, like: |
| # |
| # test_expect_success 'complain and die' ' |
| # do something && |
| # do something else && |
| # test_must_fail git checkout ../outerspace |
| # ' |
| # |
| # Writing this as "! git checkout ../outerspace" is wrong, because |
| # the failure could be due to a segv. We want a controlled failure. |
| |
| test_must_fail () { |
| case "$1" in |
| ok=*) |
| _test_ok=${1#ok=} |
| shift |
| ;; |
| *) |
| _test_ok= |
| ;; |
| esac |
| "$@" |
| exit_code=$? |
| if test $exit_code -eq 0 && ! list_contains "$_test_ok" success |
| then |
| echo >&2 "test_must_fail: command succeeded: $*" |
| return 1 |
| elif test_match_signal 13 $exit_code && list_contains "$_test_ok" sigpipe |
| then |
| return 0 |
| elif test $exit_code -gt 129 && test $exit_code -le 192 |
| then |
| echo >&2 "test_must_fail: died by signal $(($exit_code - 128)): $*" |
| return 1 |
| elif test $exit_code -eq 127 |
| then |
| echo >&2 "test_must_fail: command not found: $*" |
| return 1 |
| elif test $exit_code -eq 126 |
| then |
| echo >&2 "test_must_fail: valgrind error: $*" |
| return 1 |
| fi |
| return 0 |
| } |
| |
| # Similar to test_must_fail, but tolerates success, too. This is |
| # meant to be used in contexts like: |
| # |
| # test_expect_success 'some command works without configuration' ' |
| # test_might_fail git config --unset all.configuration && |
| # do something |
| # ' |
| # |
| # Writing "git config --unset all.configuration || :" would be wrong, |
| # because we want to notice if it fails due to segv. |
| |
| test_might_fail () { |
| test_must_fail ok=success "$@" |
| } |
| |
| # Similar to test_must_fail and test_might_fail, but check that a |
| # given command exited with a given exit code. Meant to be used as: |
| # |
| # test_expect_success 'Merge with d/f conflicts' ' |
| # test_expect_code 1 git merge "merge msg" B master |
| # ' |
| |
| test_expect_code () { |
| want_code=$1 |
| shift |
| "$@" |
| exit_code=$? |
| if test $exit_code = $want_code |
| then |
| return 0 |
| fi |
| |
| echo >&2 "test_expect_code: command exited with $exit_code, we wanted $want_code $*" |
| return 1 |
| } |
| |
| # test_cmp is a helper function to compare actual and expected output. |
| # You can use it like: |
| # |
| # test_expect_success 'foo works' ' |
| # echo expected >expected && |
| # foo >actual && |
| # test_cmp expected actual |
| # ' |
| # |
| # This could be written as either "cmp" or "diff -u", but: |
| # - cmp's output is not nearly as easy to read as diff -u |
| # - not all diff versions understand "-u" |
| |
| test_cmp() { |
| $GIT_TEST_CMP "$@" |
| } |
| |
| # test_cmp_bin - helper to compare binary files |
| |
| test_cmp_bin() { |
| cmp "$@" |
| } |
| |
| # Call any command "$@" but be more verbose about its |
| # failure. This is handy for commands like "test" which do |
| # not output anything when they fail. |
| verbose () { |
| "$@" && return 0 |
| echo >&2 "command failed: $(git rev-parse --sq-quote "$@")" |
| return 1 |
| } |
| |
| # Check if the file expected to be empty is indeed empty, and barfs |
| # otherwise. |
| |
| test_must_be_empty () { |
| if test -s "$1" |
| then |
| echo "'$1' is not empty, it contains:" |
| cat "$1" |
| return 1 |
| fi |
| } |
| |
| # Tests that its two parameters refer to the same revision |
| test_cmp_rev () { |
| git rev-parse --verify "$1" >expect.rev && |
| git rev-parse --verify "$2" >actual.rev && |
| test_cmp expect.rev actual.rev |
| } |
| |
| # Print a sequence of integers in increasing order, either with |
| # two arguments (start and end): |
| # |
| # test_seq 1 5 -- outputs 1 2 3 4 5 one line at a time |
| # |
| # or with one argument (end), in which case it starts counting |
| # from 1. |
| |
| test_seq () { |
| case $# in |
| 1) set 1 "$@" ;; |
| 2) ;; |
| *) error "bug in the test script: not 1 or 2 parameters to test_seq" ;; |
| esac |
| test_seq_counter__=$1 |
| while test "$test_seq_counter__" -le "$2" |
| do |
| echo "$test_seq_counter__" |
| test_seq_counter__=$(( $test_seq_counter__ + 1 )) |
| done |
| } |
| |
| # This function can be used to schedule some commands to be run |
| # unconditionally at the end of the test to restore sanity: |
| # |
| # test_expect_success 'test core.capslock' ' |
| # git config core.capslock true && |
| # test_when_finished "git config --unset core.capslock" && |
| # hello world |
| # ' |
| # |
| # That would be roughly equivalent to |
| # |
| # test_expect_success 'test core.capslock' ' |
| # git config core.capslock true && |
| # hello world |
| # git config --unset core.capslock |
| # ' |
| # |
| # except that the greeting and config --unset must both succeed for |
| # the test to pass. |
| # |
| # Note that under --immediate mode, no clean-up is done to help diagnose |
| # what went wrong. |
| |
| test_when_finished () { |
| # We cannot detect when we are in a subshell in general, but by |
| # doing so on Bash is better than nothing (the test will |
| # silently pass on other shells). |
| test "${BASH_SUBSHELL-0}" = 0 || |
| error "bug in test script: test_when_finished does nothing in a subshell" |
| test_cleanup="{ $* |
| } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup" |
| } |
| |
| # Most tests can use the created repository, but some may need to create more. |
| # Usage: test_create_repo <directory> |
| test_create_repo () { |
| test "$#" = 1 || |
| error "bug in the test script: not 1 parameter to test-create-repo" |
| repo="$1" |
| mkdir -p "$repo" |
| ( |
| cd "$repo" || error "Cannot setup test environment" |
| "$GIT_EXEC_PATH/git-init" "--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 || |
| error "cannot run git init -- have you built things yet?" |
| mv .git/hooks .git/hooks-disabled |
| ) || exit |
| } |
| |
| # This function helps on symlink challenged file systems when it is not |
| # important that the file system entry is a symbolic link. |
| # Use test_ln_s_add instead of "ln -s x y && git add y" to add a |
| # symbolic link entry y to the index. |
| |
| test_ln_s_add () { |
| if test_have_prereq SYMLINKS |
| then |
| ln -s "$1" "$2" && |
| git update-index --add "$2" |
| else |
| printf '%s' "$1" >"$2" && |
| ln_s_obj=$(git hash-object -w "$2") && |
| git update-index --add --cacheinfo 120000 $ln_s_obj "$2" && |
| # pick up stat info from the file |
| git update-index "$2" |
| fi |
| } |
| |
| # This function writes out its parameters, one per line |
| test_write_lines () { |
| printf "%s\n" "$@" |
| } |
| |
| perl () { |
| command "$PERL_PATH" "$@" |
| } |
| |
| # Is the value one of the various ways to spell a boolean true/false? |
| test_normalize_bool () { |
| git -c magic.variable="$1" config --bool magic.variable 2>/dev/null |
| } |
| |
| # Given a variable $1, normalize the value of it to one of "true", |
| # "false", or "auto" and store the result to it. |
| # |
| # test_tristate GIT_TEST_HTTPD |
| # |
| # A variable set to an empty string is set to 'false'. |
| # A variable set to 'false' or 'auto' keeps its value. |
| # Anything else is set to 'true'. |
| # An unset variable defaults to 'auto'. |
| # |
| # The last rule is to allow people to set the variable to an empty |
| # string and export it to decline testing the particular feature |
| # for versions both before and after this change. We used to treat |
| # both unset and empty variable as a signal for "do not test" and |
| # took any non-empty string as "please test". |
| |
| test_tristate () { |
| if eval "test x\"\${$1+isset}\" = xisset" |
| then |
| # explicitly set |
| eval " |
| case \"\$$1\" in |
| '') $1=false ;; |
| auto) ;; |
| *) $1=\$(test_normalize_bool \$$1 || echo true) ;; |
| esac |
| " |
| else |
| eval "$1=auto" |
| fi |
| } |
| |
| # Exit the test suite, either by skipping all remaining tests or by |
| # exiting with an error. If "$1" is "auto", we then we assume we were |
| # opportunistically trying to set up some tests and we skip. If it is |
| # "true", then we report a failure. |
| # |
| # The error/skip message should be given by $2. |
| # |
| test_skip_or_die () { |
| case "$1" in |
| auto) |
| skip_all=$2 |
| test_done |
| ;; |
| true) |
| error "$2" |
| ;; |
| *) |
| error "BUG: test tristate is '$1' (real error: $2)" |
| esac |
| } |
| |
| # The following mingw_* functions obey POSIX shell syntax, but are actually |
| # bash scripts, and are meant to be used only with bash on Windows. |
| |
| # A test_cmp function that treats LF and CRLF equal and avoids to fork |
| # diff when possible. |
| mingw_test_cmp () { |
| # Read text into shell variables and compare them. If the results |
| # are different, use regular diff to report the difference. |
| local test_cmp_a= test_cmp_b= |
| |
| # When text came from stdin (one argument is '-') we must feed it |
| # to diff. |
| local stdin_for_diff= |
| |
| # Since it is difficult to detect the difference between an |
| # empty input file and a failure to read the files, we go straight |
| # to diff if one of the inputs is empty. |
| if test -s "$1" && test -s "$2" |
| then |
| # regular case: both files non-empty |
| mingw_read_file_strip_cr_ test_cmp_a <"$1" |
| mingw_read_file_strip_cr_ test_cmp_b <"$2" |
| elif test -s "$1" && test "$2" = - |
| then |
| # read 2nd file from stdin |
| mingw_read_file_strip_cr_ test_cmp_a <"$1" |
| mingw_read_file_strip_cr_ test_cmp_b |
| stdin_for_diff='<<<"$test_cmp_b"' |
| elif test "$1" = - && test -s "$2" |
| then |
| # read 1st file from stdin |
| mingw_read_file_strip_cr_ test_cmp_a |
| mingw_read_file_strip_cr_ test_cmp_b <"$2" |
| stdin_for_diff='<<<"$test_cmp_a"' |
| fi |
| test -n "$test_cmp_a" && |
| test -n "$test_cmp_b" && |
| test "$test_cmp_a" = "$test_cmp_b" || |
| eval "diff -u \"\$@\" $stdin_for_diff" |
| } |
| |
| # $1 is the name of the shell variable to fill in |
| mingw_read_file_strip_cr_ () { |
| # Read line-wise using LF as the line separator |
| # and use IFS to strip CR. |
| local line |
| while : |
| do |
| if IFS=$'\r' read -r -d $'\n' line |
| then |
| # good |
| line=$line$'\n' |
| else |
| # we get here at EOF, but also if the last line |
| # was not terminated by LF; in the latter case, |
| # some text was read |
| if test -z "$line" |
| then |
| # EOF, really |
| break |
| fi |
| fi |
| eval "$1=\$$1\$line" |
| done |
| } |
| |
| # Like "env FOO=BAR some-program", but run inside a subshell, which means |
| # it also works for shell functions (though those functions cannot impact |
| # the environment outside of the test_env invocation). |
| test_env () { |
| ( |
| while test $# -gt 0 |
| do |
| case "$1" in |
| *=*) |
| eval "${1%%=*}=\${1#*=}" |
| eval "export ${1%%=*}" |
| shift |
| ;; |
| *) |
| "$@" |
| exit |
| ;; |
| esac |
| done |
| ) |
| } |
| |
| # Returns true if the numeric exit code in "$2" represents the expected signal |
| # in "$1". Signals should be given numerically. |
| test_match_signal () { |
| if test "$2" = "$((128 + $1))" |
| then |
| # POSIX |
| return 0 |
| elif test "$2" = "$((256 + $1))" |
| then |
| # ksh |
| return 0 |
| fi |
| return 1 |
| } |
| |
| # Read up to "$1" bytes (or to EOF) from stdin and write them to stdout. |
| test_copy_bytes () { |
| perl -e ' |
| my $len = $ARGV[1]; |
| while ($len > 0) { |
| my $s; |
| my $nread = sysread(STDIN, $s, $len); |
| die "cannot read: $!" unless defined($nread); |
| print $s; |
| $len -= $nread; |
| } |
| ' - "$1" |
| } |