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git/t/test-lib.sh
Junio C Hamano 6fedcd8188 Merge branch 'as/test-tweaks' 
Output from the tests is coloured using "green is okay, yellow is
questionable, red is bad and blue is informative" scheme.

* as/test-tweaks:
  tests: paint unexpectedly fixed known breakages in bold red
  tests: test the test framework more thoroughly
  tests: refactor mechanics of testing in a sub test-lib
  tests: change info messages from yellow/brown to cyan
  tests: paint skipped tests in blue
  tests: paint known breakages in yellow
  tests: test number comes first in 'not ok $count - $message'
2013-01-03 10:29:12 -08:00

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#!/bin/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/ .
# Keep the original TERM for say_color
ORIGINAL_TERM=$TERM
# Test the binaries we have just built. The tests are kept in
# t/ subdirectory and are run in 'trash directory' subdirectory.
if test -z "$TEST_DIRECTORY"
then
# We allow tests to override this, in case they want to run tests
# outside of t/, e.g. for running tests on the test library
# itself.
TEST_DIRECTORY=$(pwd)
fi
if test -z "$TEST_OUTPUT_DIRECTORY"
then
# Similarly, override this to store the test-results subdir
# elsewhere
TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
fi
GIT_BUILD_DIR="$TEST_DIRECTORY"/..
################################################################
# It appears that people try to run tests without building...
"$GIT_BUILD_DIR/git" >/dev/null
if test $? != 1
then
echo >&2 'error: you do not seem to have built git yet.'
exit 1
fi
. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
export PERL_PATH SHELL_PATH
# if --tee was passed, write the output not only to the terminal, but
# additionally to the file test-results/$BASENAME.out, too.
case "$GIT_TEST_TEE_STARTED, $* " in
done,*)
# do not redirect again
;;
*' --tee '*|*' --va'*)
mkdir -p test-results
BASE=test-results/$(basename "$0" .sh)
(GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
echo $? > $BASE.exit) | tee $BASE.out
test "$(cat $BASE.exit)" = 0
exit
;;
esac
# For repeatability, reset the environment to known value.
LANG=C
LC_ALL=C
PAGER=cat
TZ=UTC
TERM=dumb
export LANG LC_ALL PAGER TERM TZ
EDITOR=:
# A call to "unset" with no arguments causes at least Solaris 10
# /usr/xpg4/bin/sh and /bin/ksh to bail out. So keep the unsets
# deriving from the command substitution clustered with the other
# ones.
unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
my @env = keys %ENV;
my $ok = join("|", qw(
TRACE
DEBUG
USE_LOOKUP
TEST
.*_TEST
PROVE
VALGRIND
PERF_AGGREGATING_LATER
));
my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
print join("\n", @vars);
')
unset XDG_CONFIG_HOME
GIT_AUTHOR_EMAIL=author@example.com
GIT_AUTHOR_NAME='A U Thor'
GIT_COMMITTER_EMAIL=committer@example.com
GIT_COMMITTER_NAME='C O Mitter'
GIT_MERGE_VERBOSITY=5
GIT_MERGE_AUTOEDIT=no
export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
export EDITOR
# Add libc MALLOC and MALLOC_PERTURB test
# only if we are not executing the test with valgrind
if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
test -n "$TEST_NO_MALLOC_CHECK"
then
setup_malloc_check () {
: nothing
}
teardown_malloc_check () {
: nothing
}
else
setup_malloc_check () {
MALLOC_CHECK_=3 MALLOC_PERTURB_=165
export MALLOC_CHECK_ MALLOC_PERTURB_
}
teardown_malloc_check () {
unset MALLOC_CHECK_ MALLOC_PERTURB_
}
fi
# Protect ourselves from common misconfiguration to export
# CDPATH into the environment
unset CDPATH
unset GREP_OPTIONS
case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
1|2|true)
echo "* warning: Some tests will not work if GIT_TRACE" \
"is set as to trace on STDERR ! *"
echo "* warning: Please set GIT_TRACE to something" \
"other than 1, 2 or true ! *"
;;
esac
# Convenience
#
# A regexp to match 5 and 40 hexdigits
_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
# Zero SHA-1
_z40=0000000000000000000000000000000000000000
# Line feed
LF='
'
export _x05 _x40 _z40 LF
# Each test should start with something like this, after copyright notices:
#
# test_description='Description of this test...
# This test checks if command xyzzy does the right thing...
# '
# . ./test-lib.sh
[ "x$ORIGINAL_TERM" != "xdumb" ] && (
TERM=$ORIGINAL_TERM &&
export TERM &&
[ -t 1 ] &&
tput bold >/dev/null 2>&1 &&
tput setaf 1 >/dev/null 2>&1 &&
tput sgr0 >/dev/null 2>&1
) &&
color=t
while test "$#" -ne 0
do
case "$1" in
-d|--d|--de|--deb|--debu|--debug)
debug=t; shift ;;
-i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
immediate=t; shift ;;
-l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
-h|--h|--he|--hel|--help)
help=t; shift ;;
-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose=t; shift ;;
-q|--q|--qu|--qui|--quie|--quiet)
# Ignore --quiet under a TAP::Harness. Saying how many tests
# passed without the ok/not ok details is always an error.
test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
--with-dashes)
with_dashes=t; shift ;;
--no-color)
color=; shift ;;
--va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
valgrind=t; verbose=t; shift ;;
--tee)
shift ;; # was handled already
--root=*)
root=$(expr "z$1" : 'z[^=]*=\(.*\)')
shift ;;
*)
echo "error: unknown test option '$1'" >&2; exit 1 ;;
esac
done
if test -n "$color"
then
say_color () {
(
TERM=$ORIGINAL_TERM
export TERM
case "$1" in
error)
tput bold; tput setaf 1;; # bold red
skip)
tput setaf 4;; # blue
warn)
tput setaf 3;; # brown/yellow
pass)
tput setaf 2;; # green
info)
tput setaf 6;; # cyan
*)
test -n "$quiet" && return;;
esac
shift
printf "%s" "$*"
tput sgr0
echo
)
}
else
say_color() {
test -z "$1" && test -n "$quiet" && return
shift
printf "%s\n" "$*"
}
fi
error () {
say_color error "error: $*"
GIT_EXIT_OK=t
exit 1
}
say () {
say_color info "$*"
}
test "${test_description}" != "" ||
error "Test script did not set test_description."
if test "$help" = "t"
then
echo "$test_description"
exit 0
fi
exec 5>&1
exec 6<&0
if test "$verbose" = "t"
then
exec 4>&2 3>&1
else
exec 4>/dev/null 3>/dev/null
fi
test_failure=0
test_count=0
test_fixed=0
test_broken=0
test_success=0
test_external_has_tap=0
die () {
code=$?
if test -n "$GIT_EXIT_OK"
then
exit $code
else
echo >&5 "FATAL: Unexpected exit with code $code"
exit 1
fi
}
GIT_EXIT_OK=
trap 'die' EXIT
# The user-facing functions are loaded from a separate file so that
# test_perf subshells can have them too
. "$TEST_DIRECTORY/test-lib-functions.sh"
# You are not expected to call test_ok_ and test_failure_ directly, use
# the text_expect_* functions instead.
test_ok_ () {
test_success=$(($test_success + 1))
say_color "" "ok $test_count - $@"
}
test_failure_ () {
test_failure=$(($test_failure + 1))
say_color error "not ok $test_count - $1"
shift
echo "$@" | sed -e 's/^/# /'
test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
}
test_known_broken_ok_ () {
test_fixed=$(($test_fixed+1))
say_color error "ok $test_count - $@ # TODO known breakage vanished"
}
test_known_broken_failure_ () {
test_broken=$(($test_broken+1))
say_color warn "not ok $test_count - $@ # TODO known breakage"
}
test_debug () {
test "$debug" = "" || eval "$1"
}
test_eval_ () {
# This is a separate function because some tests use
# "return" to end a test_expect_success block early.
eval </dev/null >&3 2>&4 "$*"
}
test_run_ () {
test_cleanup=:
expecting_failure=$2
test_eval_ "$1"
eval_ret=$?
if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
then
setup_malloc_check
test_eval_ "$test_cleanup"
teardown_malloc_check
fi
if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
then
echo ""
fi
return "$eval_ret"
}
test_skip () {
test_count=$(($test_count+1))
to_skip=
for skp in $GIT_SKIP_TESTS
do
case $this_test.$test_count in
$skp)
to_skip=t
break
esac
done
if test -z "$to_skip" && test -n "$test_prereq" &&
! test_have_prereq "$test_prereq"
then
to_skip=t
fi
case "$to_skip" in
t)
of_prereq=
if test "$missing_prereq" != "$test_prereq"
then
of_prereq=" of $test_prereq"
fi
say_color skip >&3 "skipping test: $@"
say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
: true
;;
*)
false
;;
esac
}
# stub; perf-lib overrides it
test_at_end_hook_ () {
:
}
test_done () {
GIT_EXIT_OK=t
if test -z "$HARNESS_ACTIVE"
then
test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
mkdir -p "$test_results_dir"
base=${0##*/}
test_results_path="$test_results_dir/${base%.sh}-$$.counts"
cat >>"$test_results_path" <<-EOF
total $test_count
success $test_success
fixed $test_fixed
broken $test_broken
failed $test_failure
EOF
fi
if test "$test_fixed" != 0
then
say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
fi
if test "$test_broken" != 0
then
say_color warn "# still have $test_broken known breakage(s)"
fi
if test "$test_broken" != 0 || test "$test_fixed" != 0
then
test_remaining=$(( $test_count - $test_broken - $test_fixed ))
msg="remaining $test_remaining test(s)"
else
test_remaining=$test_count
msg="$test_count test(s)"
fi
case "$test_failure" in
0)
# Maybe print SKIP message
if test -n "$skip_all" && test $test_count -gt 0
then
error "Can't use skip_all after running some tests"
fi
[ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
if test $test_external_has_tap -eq 0
then
if test $test_remaining -gt 0
then
say_color pass "# passed all $msg"
fi
say "1..$test_count$skip_all"
fi
test -d "$remove_trash" &&
cd "$(dirname "$remove_trash")" &&
rm -rf "$(basename "$remove_trash")"
test_at_end_hook_
exit 0 ;;
*)
if test $test_external_has_tap -eq 0
then
say_color error "# failed $test_failure among $msg"
say "1..$test_count"
fi
exit 1 ;;
esac
}
if test -n "$valgrind"
then
make_symlink () {
test -h "$2" &&
test "$1" = "$(readlink "$2")" || {
# be super paranoid
if mkdir "$2".lock
then
rm -f "$2" &&
ln -s "$1" "$2" &&
rm -r "$2".lock
else
while test -d "$2".lock
do
say "Waiting for lock on $2."
sleep 1
done
fi
}
}
make_valgrind_symlink () {
# handle only executables, unless they are shell libraries that
# need to be in the exec-path. We will just use "#!" as a
# guess for a shell-script, since we have no idea what the user
# may have configured as the shell path.
test -x "$1" ||
test "#!" = "$(head -c 2 <"$1")" ||
return;
base=$(basename "$1")
symlink_target=$GIT_BUILD_DIR/$base
# do not override scripts
if test -x "$symlink_target" &&
test ! -d "$symlink_target" &&
test "#!" != "$(head -c 2 < "$symlink_target")"
then
symlink_target=../valgrind.sh
fi
case "$base" in
*.sh|*.perl)
symlink_target=../unprocessed-script
esac
# create the link, or replace it if it is out of date
make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
}
# override all git executables in TEST_DIRECTORY/..
GIT_VALGRIND=$TEST_DIRECTORY/valgrind
mkdir -p "$GIT_VALGRIND"/bin
for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
do
make_valgrind_symlink $file
done
# special-case the mergetools loadables
make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
OLDIFS=$IFS
IFS=:
for path in $PATH
do
ls "$path"/git-* 2> /dev/null |
while read file
do
make_valgrind_symlink "$file"
done
done
IFS=$OLDIFS
PATH=$GIT_VALGRIND/bin:$PATH
GIT_EXEC_PATH=$GIT_VALGRIND/bin
export GIT_VALGRIND
elif test -n "$GIT_TEST_INSTALLED"
then
GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path) ||
error "Cannot run git from $GIT_TEST_INSTALLED."
PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
else # normal case, use ../bin-wrappers only unless $with_dashes:
git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
if ! test -x "$git_bin_dir/git"
then
if test -z "$with_dashes"
then
say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
fi
with_dashes=t
fi
PATH="$git_bin_dir:$PATH"
GIT_EXEC_PATH=$GIT_BUILD_DIR
if test -n "$with_dashes"
then
PATH="$GIT_BUILD_DIR:$PATH"
fi
fi
GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
unset GIT_CONFIG
GIT_CONFIG_NOSYSTEM=1
GIT_ATTR_NOSYSTEM=1
export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
if test -z "$GIT_TEST_CMP"
then
if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
then
GIT_TEST_CMP="$DIFF -c"
else
GIT_TEST_CMP="$DIFF -u"
fi
fi
GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
export GITPERLLIB
test -d "$GIT_BUILD_DIR"/templates/blt || {
error "You haven't built things yet, have you?"
}
if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
then
GITPYTHONLIB="$GIT_BUILD_DIR/git_remote_helpers/build/lib"
export GITPYTHONLIB
test -d "$GIT_BUILD_DIR"/git_remote_helpers/build || {
error "You haven't built git_remote_helpers yet, have you?"
}
fi
if ! test -x "$GIT_BUILD_DIR"/test-chmtime
then
echo >&2 'You need to build test-chmtime:'
echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
exit 1
fi
# Test repository
test="trash directory.$(basename "$0" .sh)"
test -n "$root" && test="$root/$test"
case "$test" in
/*) TRASH_DIRECTORY="$test" ;;
*) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$test" ;;
esac
test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
rm -fr "$test" || {
GIT_EXIT_OK=t
echo >&5 "FATAL: Cannot prepare test area"
exit 1
}
HOME="$TRASH_DIRECTORY"
export HOME
if test -z "$TEST_NO_CREATE_REPO"
then
test_create_repo "$test"
else
mkdir -p "$test"
fi
# Use -P to resolve symlinks in our working directory so that the cwd
# in subprocesses like git equals our $PWD (for pathname comparisons).
cd -P "$test" || exit 1
this_test=${0##*/}
this_test=${this_test%%-*}
for skp in $GIT_SKIP_TESTS
do
case "$this_test" in
$skp)
say_color info >&3 "skipping test $this_test altogether"
skip_all="skip all tests in $this_test"
test_done
esac
done
# Provide an implementation of the 'yes' utility
yes () {
if test $# = 0
then
y=y
else
y="$*"
fi
while echo "$y"
do
:
done
}
# Fix some commands on Windows
case $(uname -s) in
*MINGW*)
# Windows has its own (incompatible) sort and find
sort () {
/usr/bin/sort "$@"
}
find () {
/usr/bin/find "$@"
}
sum () {
md5sum "$@"
}
# git sees Windows-style pwd
pwd () {
builtin pwd -W
}
# no POSIX permissions
# backslashes in pathspec are converted to '/'
# exec does not inherit the PID
test_set_prereq MINGW
test_set_prereq SED_STRIPS_CR
;;
*CYGWIN*)
test_set_prereq POSIXPERM
test_set_prereq EXECKEEPSPID
test_set_prereq NOT_MINGW
test_set_prereq SED_STRIPS_CR
;;
*)
test_set_prereq POSIXPERM
test_set_prereq BSLASHPSPEC
test_set_prereq EXECKEEPSPID
test_set_prereq NOT_MINGW
;;
esac
( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
test -z "$NO_PERL" && test_set_prereq PERL
test -z "$NO_PYTHON" && test_set_prereq PYTHON
test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
# Can we rely on git's output in the C locale?
if test -n "$GETTEXT_POISON"
then
GIT_GETTEXT_POISON=YesPlease
export GIT_GETTEXT_POISON
test_set_prereq GETTEXT_POISON
else
test_set_prereq C_LOCALE_OUTPUT
fi
# Use this instead of test_cmp to compare files that contain expected and
# actual output from git commands that can be translated. When running
# under GETTEXT_POISON this pretends that the command produced expected
# results.
test_i18ncmp () {
test -n "$GETTEXT_POISON" || test_cmp "$@"
}
# Use this instead of "grep expected-string actual" to see if the
# output from a git command that can be translated either contains an
# expected string, or does not contain an unwanted one. When running
# under GETTEXT_POISON this pretends that the command produced expected
# results.
test_i18ngrep () {
if test -n "$GETTEXT_POISON"
then
: # pretend success
elif test "x!" = "x$1"
then
shift
! grep "$@"
else
grep "$@"
fi
}
test_lazy_prereq SYMLINKS '
# test whether the filesystem supports symbolic links
ln -s x y && test -h y
'
test_lazy_prereq CASE_INSENSITIVE_FS '
echo good >CamelCase &&
echo bad >camelcase &&
test "$(cat CamelCase)" != good
'
test_lazy_prereq UTF8_NFD_TO_NFC '
# check whether FS converts nfd unicode to nfc
auml=$(printf "\303\244")
aumlcdiar=$(printf "\141\314\210")
>"$auml" &&
case "$(echo *)" in
"$aumlcdiar")
true ;;
*)
false ;;
esac
'
test_lazy_prereq AUTOIDENT '
sane_unset GIT_AUTHOR_NAME &&
sane_unset GIT_AUTHOR_EMAIL &&
git var GIT_AUTHOR_IDENT
'
# When the tests are run as root, permission tests will report that
# things are writable when they shouldn't be.
test -w / || test_set_prereq SANITY
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