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#! /bin/sh
# $NetBSD: sh.test,v 1.4 2020/05/21 13:33:35 rillig Exp $
#
# Tests for the shell that is available as ${SH} in Makefiles.
#
# On platforms where /bin/sh is not good enough, pkgsrc may use
# different shells, depending on the exact situation.
#
# TOOLS_PLATFORM.sh (which ends up in SH as well) is used for running
# shell programs from mk/ and other programs that typically start with
# a #! line.
#
# The shell commands that are written in the targets of Makefiles (such
# as do-build, pre-configure) are run with a possibly different shell,
# see devel/bmake/Makefile. This shell is tested by regress/make-shell,
# which also uses this code.
set -eu
dief() {
printf 'error: [sh.test] ' 1>&2
printf "$@" 1>&2
printf '\n' 1>&2
exit 1
}
assert_that() {
case $2 in
(--equals)
[ "x$1" = "x$3" ] \
|| dief 'assertion failed: expected "%s", got "%s"' "$3" "$1"
;;
(*) dief 'wrong assert_that call: %s' "$*"
;;
esac
}
pathname="first/second/third/fourth"
# Make sure that the usual word expansions work.
assert_that "##: ${pathname##*/}" --equals "##: fourth"
assert_that "#: ${pathname#*/}" --equals "#: second/third/fourth"
assert_that "%%: ${pathname%%/*}" --equals "%%: first"
assert_that "%: ${pathname%/*}" --equals "%: first/second/third"
# Make sure that $(...) subshells work.
assert_that "subshell: $(echo world | tr 'world' 'hello')" \
--equals "subshell: hello"
# In NetBSD 7, /bin/sh handled backslashes in word expansions incorrectly.
# See https://gnats.netbsd.org/43469.
line='#define bindir "/usr/bin" /* bar */'
case $MACHINE_PLATFORM in
(NetBSD-[0-7].*-*)
assert_that "${line%%/\**}" --equals '#define bindir "'
;;
(*)
assert_that "${line%%/\**}" --equals '#define bindir "/usr/bin" '
;;
esac
# Make sure that the shell can process empty arguments.
#
# For example, /bin/ksh on NetBSD 8 cannot, it complains with:
# ksh: @: parameter not set
sh -eu -c ': "$@"'
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