zsh-syntax-highlighting/tests/test-highlighting.zsh

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#!/usr/bin/env zsh
# -------------------------------------------------------------------------------------------------
# Copyright (c) 2010-2017 zsh-syntax-highlighting contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted
# provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions
# and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of
# conditions and the following disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
# may be used to endorse or promote products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# -------------------------------------------------------------------------------------------------
# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
# vim: ft=zsh sw=2 ts=2 et
# -------------------------------------------------------------------------------------------------
setopt NO_UNSET WARN_CREATE_GLOBAL
local -r root=${0:h:h}
local -a anon_argv; anon_argv=("$@")
(){
set -- "${(@)anon_argv}"
# Check an highlighter was given as argument.
[[ -n "$1" ]] || {
echo >&2 "Bail out! You must provide the name of a valid highlighter as argument."
exit 2
}
# Check the highlighter is valid.
[[ -f $root/highlighters/$1/$1-highlighter.zsh ]] || {
echo >&2 "Bail out! Could not find highlighter ${(qq)1}."
exit 2
}
# Check the highlighter has test data.
[[ -d $root/highlighters/$1/test-data ]] || {
echo >&2 "Bail out! Highlighter ${(qq)1} has no test data."
exit 2
}
# Set up results_filter
local results_filter
if [[ ${QUIET-} == y ]]; then
if type -w perl >/dev/null; then
results_filter=$root/tests/tap-filter
else
echo >&2 "Bail out! quiet mode not supported: perl not found"; exit 2
fi
else
results_filter=cat
fi
[[ -n $results_filter ]] || { echo >&2 "Bail out! BUG setting \$results_filter"; exit 2 }
# Load the main script.
# While here, test that it doesn't eat aliases.
print > >($results_filter | $root/tests/tap-colorizer.zsh) -r -- "# global (driver) tests"
print > >($results_filter | $root/tests/tap-colorizer.zsh) -r -- "1..1"
alias -- +plus=plus
alias -- _other=other
local original_alias_dash_L_output="$(alias -L)"
. $root/zsh-syntax-highlighting.zsh
if [[ $original_alias_dash_L_output == $(alias -L) ]]; then
print -r -- "ok 1 # 'alias -- +foo=bar' is preserved"
else
print -r -- "not ok 1 # 'alias -- +foo=bar' is preserved"
exit 1
fi > >($results_filter | $root/tests/tap-colorizer.zsh)
# Overwrite _zsh_highlight_add_highlight so we get the key itself instead of the style
_zsh_highlight_add_highlight()
{
region_highlight+=("$1 $2 $3")
}
# Activate the highlighter.
ZSH_HIGHLIGHT_HIGHLIGHTERS=($1)
# In zsh<5.3, 'typeset -p arrayvar' emits two lines, so we use this wrapper instead.
typeset_p() {
for 1 ; do
if [[ ${(tP)1} == *array* ]]; then
print -r -- "$1=( ${(@qqqqP)1} )"
else
print -r -- "$1=${(qqqqP)1}"
fi
done
}
# Escape # as ♯ and newline as ↵ they are illegal in the 'description' part of TAP output
# The string to escape is «"$@"»; the result is returned in $REPLY.
tap_escape() {
local s="${(j. .)@}"
REPLY="${${s//'#'/♯}//$'\n'/↵}"
}
# Runs a highlighting test
# $1: data file
run_test_internal() {
local tests_tempdir="$1"; shift
local srcdir="$PWD"
builtin cd -q -- "$tests_tempdir" || { echo >&2 "Bail out! On ${(qq)1}: cd failed: $?"; return 1 }
# Load the data and prepare checking it.
local BUFFER CURSOR MARK PENDING PREBUFFER REGION_ACTIVE WIDGET REPLY skip_test fail_test unsorted=0
local expected_mismatch
local skip_mismatch
local -a expected_region_highlight region_highlight
local ARG="$1"
local RETURN=""
() {
setopt localoptions
# WARNING: The remainder of this anonymous function will run with the test's options in effect
if { ! . "$srcdir"/"$ARG" } || (( $#fail_test )); then
print -r -- "1..1"
print -r -- "## ${ARG:t:r}"
tap_escape $fail_test; fail_test=$REPLY
print -r -- "not ok 1 - failed setup: $fail_test"
return ${RETURN:=0}
fi
(( $#skip_test )) && {
print -r -- "1..0 # SKIP $skip_test"
print -r -- "## ${ARG:t:r}"
return ${RETURN:=0}
}
# Check the data declares $PREBUFFER or $BUFFER.
[[ -z $PREBUFFER && -z $BUFFER ]] && { echo >&2 "Bail out! On ${(qq)1}: Either 'PREBUFFER' or 'BUFFER' must be declared and non-blank"; return ${RETURN:=1}; }
# Set sane defaults for ZLE variables
: ${CURSOR=$#BUFFER} ${PENDING=0} ${WIDGET=z-sy-h-test-harness-test-widget}
# Process the data.
_zsh_highlight
}; [[ -z $RETURN ]] || return $RETURN
unset ARG
integer print_expected_and_actual=0
if (( unsorted )); then
region_highlight=("${(@n)region_highlight}")
expected_region_highlight=("${(@n)expected_region_highlight}")
fi
# Print the plan line, and some comments for human readers
echo "1..$(( $#expected_region_highlight + 1))"
echo "## ${1:t:r}" # note: tests/edit-failed-tests looks for the "##" emitted by this line
[[ -n $PREBUFFER ]] && printf '# %s\n' "$(typeset_p PREBUFFER)"
[[ -n $BUFFER ]] && printf '# %s\n' "$(typeset_p BUFFER)"
local i
for ((i=1; i<=$#expected_region_highlight; i++)); do
local -a expected_highlight_zone; expected_highlight_zone=( ${(z)expected_region_highlight[i]} )
integer exp_start=$expected_highlight_zone[1] exp_end=$expected_highlight_zone[2]
local todo=
if (( $+expected_highlight_zone[4] )); then
todo="# TODO $expected_highlight_zone[4]"
skip_mismatch="cardinality check disabled whilst regular test points are expected to fail"
fi
if ! (( $+region_highlight[i] )); then
print -r -- "not ok $i - unmatched expectation ($exp_start $exp_end $expected_highlight_zone[3])" \
"${skip_mismatch:+"# TODO ${(qqq)skip_mismatch}"}"
if [[ -z $skip_mismatch ]]; then (( ++print_expected_and_actual )); fi
continue
fi
local -a highlight_zone; highlight_zone=( ${(z)region_highlight[i]} )
integer start=$(( highlight_zone[1] + 1 )) end=$highlight_zone[2]
local desc="[$start,$end] «${BUFFER[$start,$end]}»"
tap_escape $desc; desc=$REPLY
if
[[ $start != $exp_start ]] ||
[[ $end != $exp_end ]] ||
[[ $highlight_zone[3] != $expected_highlight_zone[3] ]]
then
print -r -- "not ok $i - $desc - expected ($exp_start $exp_end ${(qqq)expected_highlight_zone[3]}), observed ($start $end ${(qqq)highlight_zone[3]}). $todo"
if [[ -z $todo ]]; then (( ++print_expected_and_actual )); fi
else
print -r -- "ok $i - $desc${todo:+ - }$todo"
fi
unset expected_highlight_zone
unset exp_start exp_end
unset todo
unset highlight_zone
unset start end
unset desc
done
# If both $skip_mismatch and $expected_mismatch are set, that means the test
# has some XFail test points, _and_ explicitly sets $expected_mismatch as
# well. Explicit settings should have priority, so we ignore $skip_mismatch
# if $expected_mismatch is set.
if [[ -n $skip_mismatch && -z $expected_mismatch ]]; then
tap_escape $skip_mismatch; skip_mismatch=$REPLY
print "ok $i - cardinality check" "# SKIP $skip_mismatch"
else
local todo
if [[ -n $expected_mismatch ]]; then
tap_escape $expected_mismatch; expected_mismatch=$REPLY
todo="# TODO $expected_mismatch"
fi
if (( $#expected_region_highlight == $#region_highlight )); then
print -r -- "ok $i - cardinality check${todo:+ - }$todo"
else
local details
details+="have $#expected_region_highlight expectations and $#region_highlight region_highlight entries: "
details+="«$(typeset_p expected_region_highlight)» «$(typeset_p region_highlight)»"
tap_escape $details; details=$REPLY
print -r -- "not ok $i - cardinality check - $details${todo:+ - }$todo"
if [[ -z $todo ]]; then (( ++print_expected_and_actual )); fi
fi
fi
if (( print_expected_and_actual )); then
() {
local -a left_column right_column
left_column=( "expected_region_highlight" "${(qq)expected_region_highlight[@]}" )
right_column=( "region_highlight" "${(qq)region_highlight[@]}" )
integer difference=$(( $#right_column - $#left_column ))
repeat $difference do left_column+=(.); done
paste \
=(print -rC1 -- $left_column) \
=(print -rC1 -- $right_column) \
| if type column >/dev/null; then column -t -s $'\t'; else cat; fi \
| sed 's/^/# /'
}
fi
}
# Run a single test file. The exit status is 1 if the test harness had
# an error and 0 otherwise. The exit status does not depend on whether
# test points succeeded or failed.
run_test() {
# Do not combine the declaration and initialization: «local x="$(false)"» does not set $?.
local __tests_tempdir
__tests_tempdir="$(mktemp -d)" && [[ -d $__tests_tempdir ]] || {
echo >&2 "Bail out! mktemp failed"; return 1
}
typeset -r __tests_tempdir # don't allow tests to override the variable that we will 'rm -rf' later on
{
# Use a subshell to isolate tests from each other.
# (So tests can alter global shell state using 'cd', 'hash', etc)
{
# These braces are so multios don't come into play.
{ (run_test_internal "$__tests_tempdir" "$@") 3>&1 >&2 2>&3 } | grep \^
local ret=$pipestatus[1] stderr=$pipestatus[2]
if (( ! stderr )); then
# stdout will become stderr
echo "Bail out! On ${(qq)1}: output on stderr"; return 1
else
return $ret
fi
} 3>&1 >&2 2>&3
} always {
rm -rf -- "$__tests_tempdir"
}
}
# Process each test data file in test data directory.
integer something_failed=0
ZSH_HIGHLIGHT_STYLES=()
local data_file
for data_file in $root/highlighters/$1/test-data/*.zsh; do
run_test "$data_file" | tee >($results_filter | $root/tests/tap-colorizer.zsh) | grep -v '^not ok.*# TODO' | grep -Eq '^not ok|^ok.*# TODO' && (( something_failed=1 ))
(( $pipestatus[1] )) && exit 2
done
exit $something_failed
}