diff options
Diffstat (limited to 't/test-lib-functions.sh')
| -rw-r--r-- | t/test-lib-functions.sh | 416 |
1 files changed, 357 insertions, 59 deletions
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index 6b3bbf99e4..3103be8a32 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -116,6 +116,13 @@ remove_cr () { tr '\015' Q | sed -e 's/Q$//' } +# Generate an output of $1 bytes of all zeroes (NULs, not ASCII zeroes). +# If $1 is 'infinity', output forever or until the receiving pipe stops reading, +# whichever comes first. +generate_zero_bytes () { + test-tool genzeros "$@" +} + # In some bourne shell implementations, the "unset" builtin returns # nonzero status when a variable to be unset was not set in the first # place. @@ -221,9 +228,134 @@ test_commit () { # can be a tag pointing to the commit-to-merge. test_merge () { + label="$1" && + shift && test_tick && - git merge -m "$1" "$2" && - git tag "$1" + git merge -m "$label" "$@" && + git tag "$label" +} + +# Efficiently create <nr> commits, each with a unique number (from 1 to <nr> +# by default) in the commit message. +# +# Usage: test_commit_bulk [options] <nr> +# -C <dir>: +# Run all git commands in directory <dir> +# --ref=<n>: +# ref on which to create commits (default: HEAD) +# --start=<n>: +# number commit messages from <n> (default: 1) +# --message=<msg>: +# use <msg> as the commit mesasge (default: "commit %s") +# --filename=<fn>: +# modify <fn> in each commit (default: %s.t) +# --contents=<string>: +# place <string> in each file (default: "content %s") +# --id=<string>: +# shorthand to use <string> and %s in message, filename, and contents +# +# The message, filename, and contents strings are evaluated by printf, with the +# first "%s" replaced by the current commit number. So you can do: +# +# test_commit_bulk --filename=file --contents="modification %s" +# +# to have every commit touch the same file, but with unique content. +# +test_commit_bulk () { + tmpfile=.bulk-commit.input + indir=. + ref=HEAD + n=1 + message='commit %s' + filename='%s.t' + contents='content %s' + while test $# -gt 0 + do + case "$1" in + -C) + indir=$2 + shift + ;; + --ref=*) + ref=${1#--*=} + ;; + --start=*) + n=${1#--*=} + ;; + --message=*) + message=${1#--*=} + ;; + --filename=*) + filename=${1#--*=} + ;; + --contents=*) + contents=${1#--*=} + ;; + --id=*) + message="${1#--*=} %s" + filename="${1#--*=}-%s.t" + contents="${1#--*=} %s" + ;; + -*) + BUG "invalid test_commit_bulk option: $1" + ;; + *) + break + ;; + esac + shift + done + total=$1 + + add_from= + if git -C "$indir" rev-parse --quiet --verify "$ref" + then + add_from=t + fi + + while test "$total" -gt 0 + do + test_tick && + echo "commit $ref" + printf 'author %s <%s> %s\n' \ + "$GIT_AUTHOR_NAME" \ + "$GIT_AUTHOR_EMAIL" \ + "$GIT_AUTHOR_DATE" + printf 'committer %s <%s> %s\n' \ + "$GIT_COMMITTER_NAME" \ + "$GIT_COMMITTER_EMAIL" \ + "$GIT_COMMITTER_DATE" + echo "data <<EOF" + printf "$message\n" $n + echo "EOF" + if test -n "$add_from" + then + echo "from $ref^0" + add_from= + fi + printf "M 644 inline $filename\n" $n + echo "data <<EOF" + printf "$contents\n" $n + echo "EOF" + echo + n=$((n + 1)) + total=$((total - 1)) + done >"$tmpfile" + + git -C "$indir" \ + -c fastimport.unpacklimit=0 \ + fast-import <"$tmpfile" || return 1 + + # This will be left in place on failure, which may aid debugging. + rm -f "$tmpfile" + + # If we updated HEAD, then be nice and update the index and working + # tree, too. + if test "$ref" = "HEAD" + then + git -C "$indir" checkout -f HEAD || return 1 + fi + } # This function helps systems where core.filemode=false is set. @@ -302,6 +434,26 @@ test_unset_prereq () { } test_set_prereq () { + if test -n "$GIT_TEST_FAIL_PREREQS_INTERNAL" + then + case "$1" in + # The "!" case is handled below with + # test_unset_prereq() + !*) + ;; + # (Temporary?) whitelist of things we can't easily + # pretend not to support + SYMLINKS) + ;; + # Inspecting whether GIT_TEST_FAIL_PREREQS is on + # should be unaffected. + FAIL_PREREQS) + ;; + *) + return + esac + fi + case "$1" in !*) test_unset_prereq "${1#!}" @@ -430,7 +582,7 @@ test_expect_failure () { export test_prereq if ! test_skip "$@" then - say >&3 "checking known breakage: $2" + say >&3 "checking known breakage of $TEST_NUMBER.$test_count '$1': $2" if test_run_ "$2" expecting_failure then test_known_broken_ok_ "$1" @@ -450,7 +602,7 @@ test_expect_success () { export test_prereq if ! test_skip "$@" then - say >&3 "expecting success: $2" + say >&3 "expecting success of $TEST_NUMBER.$test_count '$1': $2" if test_run_ "$2" then test_ok_ "$1" @@ -586,6 +738,15 @@ test_dir_is_empty () { fi } +# Check if the file exists and has a size greater than zero +test_file_not_empty () { + if ! test -s "$1" + then + echo "'$1' is not a non-empty file." + false + fi +} + test_path_is_missing () { if test -e "$1" then @@ -744,7 +905,7 @@ test_expect_code () { # - not all diff versions understand "-u" test_cmp() { - $GIT_TEST_CMP "$@" + eval "$GIT_TEST_CMP" '"$@"' } # Check that the given config key has the expected value. @@ -851,19 +1012,30 @@ test_must_be_empty () { fi } -# Tests that its two parameters refer to the same revision +# Tests that its two parameters refer to the same revision, or if '!' is +# provided first, that its other two parameters refer to different +# revisions. test_cmp_rev () { + local op='=' wrong_result=different + + if test $# -ge 1 && test "x$1" = 'x!' + then + op='!=' + wrong_result='the same' + shift + fi if test $# != 2 then error "bug in the test script: test_cmp_rev requires two revisions, but got $#" else local r1 r2 r1=$(git rev-parse --verify "$1") && - r2=$(git rev-parse --verify "$2") && - if test "$r1" != "$r2" + r2=$(git rev-parse --verify "$2") || return 1 + + if ! test "$r1" "$op" "$r2" then cat >&4 <<-EOF - error: two revisions point to different objects: + error: two revisions point to $wrong_result objects: '$1': $r1 '$2': $r2 EOF @@ -872,6 +1044,21 @@ test_cmp_rev () { fi } +# Compare paths respecting core.ignoreCase +test_cmp_fspath () { + if test "x$1" = "x$2" + then + return 0 + fi + + if test true != "$(git config --get --type=bool core.ignorecase)" + then + return 1 + fi + + test "x$(echo "$1" | tr A-Z a-z)" = "x$(echo "$2" | tr A-Z a-z)" +} + # Print a sequence of integers in increasing order, either with # two arguments (start and end): # @@ -927,6 +1114,34 @@ test_when_finished () { } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup" } +# This function can be used to schedule some commands to be run +# unconditionally at the end of the test script, e.g. to stop a daemon: +# +# test_expect_success 'test git daemon' ' +# git daemon & +# daemon_pid=$! && +# test_atexit 'kill $daemon_pid' && +# hello world +# ' +# +# The commands will be executed before the trash directory is removed, +# i.e. the atexit commands will still be able to access any pidfiles or +# socket files. +# +# Note that these commands will be run even when a test script run +# with '--immediate' fails. Be careful with your atexit commands to +# minimize any changes to the failed state. + +test_atexit () { + # We cannot detect when we are in a subshell in general, but by + # doing so on Bash is better than nothing (the test will + # silently pass on other shells). + test "${BASH_SUBSHELL-0}" = 0 || + error "bug in test script: test_atexit does nothing in a subshell" + test_atexit_cleanup="{ $* + } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_atexit_cleanup" +} + # Most tests can use the created repository, but some may need to create more. # Usage: test_create_repo <directory> test_create_repo () { @@ -971,62 +1186,48 @@ perl () { command "$PERL_PATH" "$@" 2>&7 } 7>&2 2>&4 -# 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. +# Given the name of an environment variable with a bool value, normalize +# its value to a 0 (true) or 1 (false or empty string) return code. # -# test_tristate GIT_TEST_HTTPD +# test_bool_env GIT_TEST_HTTPD <default-value> # -# 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" +# Return with code corresponding to the given default value if the variable +# is unset. +# Abort the test script if either the value of the variable or the default +# are not valid bool values. + +test_bool_env () { + if test $# != 2 then - # explicitly set - eval " - case \"\$$1\" in - '') $1=false ;; - auto) ;; - *) $1=\$(test_normalize_bool \$$1 || echo true) ;; - esac - " - else - eval "$1=auto" + BUG "test_bool_env requires two parameters (variable name and default value)" fi + + git env--helper --type=bool --default="$2" --exit-code "$1" + ret=$? + case $ret in + 0|1) # unset or valid bool value + ;; + *) # invalid bool value or something unexpected + error >&7 "test_bool_env requires bool values both for \$$1 and for the default fallback" + ;; + esac + return $ret } # 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. +# exiting with an error. If our prerequisite variable $1 falls back +# on a default assume we were opportunistically trying to set up some +# tests and we skip. If it is explicitly "true", then we report a failure. # # The error/skip message should be given by $2. # test_skip_or_die () { - case "$1" in - auto) + if ! test_bool_env "$1" false + then skip_all=$2 test_done - ;; - true) - error "$2" - ;; - *) - error "BUG: test tristate is '$1' (real error: $2)" - esac + fi + error "$2" } # The following mingw_* functions obey POSIX shell syntax, but are actually @@ -1161,14 +1362,22 @@ nongit () { ) } 7>&2 2>&4 -# convert stdin to pktline representation; note that empty input becomes an -# empty packet, not a flush packet (for that you can just print 0000 yourself). +# convert function arguments or stdin (if not arguments given) to pktline +# representation. If multiple arguments are given, they are separated by +# whitespace and put in a single packet. Note that data containing NULs must be +# given on stdin, and that empty input becomes an empty packet, not a flush +# packet (for that you can just print 0000 yourself). packetize() { - cat >packetize.tmp && - len=$(wc -c <packetize.tmp) && - printf '%04x%s' "$(($len + 4))" && - cat packetize.tmp && - rm -f packetize.tmp + if test $# -gt 0 + then + packet="$*" + printf '%04x%s' "$((4 + ${#packet}))" "$packet" + else + perl -e ' + my $packet = do { local $/; <STDIN> }; + printf "%04x%s", 4 + length($packet), $packet; + ' + fi } # Parse the input as a series of pktlines, writing the result to stdout. @@ -1195,6 +1404,12 @@ depacketize () { ' } +# Converts base-16 data into base-8. The output is given as a sequence of +# escaped octals, suitable for consumption by 'printf'. +hex2oct () { + perl -ne 'printf "\\%03o", hex for /../g' +} + # Set the hash algorithm in use to $1. Only useful when testing the testsuite. test_set_hash () { test_hash_algo="$1" @@ -1263,3 +1478,86 @@ test_oid () { fi && eval "printf '%s' \"\${$var}\"" } + +# Insert a slash into an object ID so it can be used to reference a location +# under ".git/objects". For example, "deadbeef..." becomes "de/adbeef..". +test_oid_to_path () { + local basename=${1#??} + echo "${1%$basename}/$basename" +} + +# Choose a port number based on the test script's number and store it in +# the given variable name, unless that variable already contains a number. +test_set_port () { + local var=$1 port + + if test $# -ne 1 || test -z "$var" + then + BUG "test_set_port requires a variable name" + fi + + eval port=\$$var + case "$port" in + "") + # No port is set in the given env var, use the test + # number as port number instead. + # Remove not only the leading 't', but all leading zeros + # as well, so the arithmetic below won't (mis)interpret + # a test number like '0123' as an octal value. + port=${this_test#${this_test%%[1-9]*}} + if test "${port:-0}" -lt 1024 + then + # root-only port, use a larger one instead. + port=$(($port + 10000)) + fi + ;; + *[!0-9]*|0*) + error >&7 "invalid port number: $port" + ;; + *) + # The user has specified the port. + ;; + esac + + # Make sure that parallel '--stress' test jobs get different + # ports. + port=$(($port + ${GIT_TEST_STRESS_JOB_NR:-0})) + eval $var=$port +} + +# Compare a file containing rev-list bitmap traversal output to its non-bitmap +# counterpart. You can't just use test_cmp for this, because the two produce +# subtly different output: +# +# - regular output is in traversal order, whereas bitmap is split by type, +# with non-packed objects at the end +# +# - regular output has a space and the pathname appended to non-commit +# objects; bitmap output omits this +# +# This function normalizes and compares the two. The second file should +# always be the bitmap output. +test_bitmap_traversal () { + if test "$1" = "--no-confirm-bitmaps" + then + shift + elif cmp "$1" "$2" + then + echo >&2 "identical raw outputs; are you sure bitmaps were used?" + return 1 + fi && + cut -d' ' -f1 "$1" | sort >"$1.normalized" && + sort "$2" >"$2.normalized" && + test_cmp "$1.normalized" "$2.normalized" && + rm -f "$1.normalized" "$2.normalized" +} + +# Tests for the hidden file attribute on Windows +test_path_is_hidden () { + test_have_prereq MINGW || + BUG "test_path_is_hidden can only be used on Windows" + + # Use the output of `attrib`, ignore the absolute path + case "$("$SYSTEMROOT"/system32/attrib "$1")" in *H*?:*) return 0;; esac + return 1 +} |