diff options
Diffstat (limited to 'contrib/netbsd-tests/bin/sh/t_fsplit.sh')
| -rwxr-xr-x | contrib/netbsd-tests/bin/sh/t_fsplit.sh | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/bin/sh/t_fsplit.sh b/contrib/netbsd-tests/bin/sh/t_fsplit.sh new file mode 100755 index 000000000000..a37804b6a17f --- /dev/null +++ b/contrib/netbsd-tests/bin/sh/t_fsplit.sh @@ -0,0 +1,360 @@ +# $NetBSD: t_fsplit.sh,v 1.4 2016/03/27 14:50:01 christos Exp $ +# +# Copyright (c) 2007-2016 The NetBSD Foundation, Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. 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. +# +# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. +# + +# The standard +# http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html +# explains (section 2.6) that Field splitting should be performed on the +# result of variable expansions. +# In particular this means that in ${x-word}, 'word' must be expanded as if +# the "${x-" and "}" were absent from the input line. +# +# So: sh -c 'set ${x-a b c}; echo $#' should give 3. +# and: sh -c 'set -- ${x-}' echo $#' shold give 0 +# + +# the implementation of "sh" to test +: ${TEST_SH:="/bin/sh"} + +nl=' +' + +check() +{ + TEST=$((${TEST} + 1)) + + case "$#" in + (2) ;; + (*) atf_fail "Internal test error, $# args to check test ${TEST}";; + esac + + result=$( ${TEST_SH} -c "unset x; $1" ) + STATUS="$?" + + # Remove newlines + oifs="$IFS" + IFS="$nl" + result="$(echo $result)" + IFS="$oifs" + + # trim the test text in case we use it in a message below + case "$1" in + ????????????????*) + set -- "$(expr "$1" : '\(............\).*')..." "$2" ;; + esac + + if [ "$2" != "$result" ] + then + if [ "${STATUS}" = "0" ] + then + atf_fail "Test ${TEST} '$1': expected [$2], found [$result]" + else + atf_fail \ + "TEST ${TEST} '$1' failed ($STATUS): expected [$2], found [$result]" + fi + elif [ "${STATUS}" != 0 ] + then + atf_fail "TEST ${TEST} '$1' failed ($STATUS)" + fi +} + +atf_test_case for +for_head() { + atf_set "descr" "Checks field splitting in for loops" +} +for_body() { + unset x + + TEST=0 + # Since I managed to break this, leave the test in + check 'for f in $x; do echo x${f}y; done' '' +} + +atf_test_case default_val +default_val_head() { + atf_set "descr" "Checks field splitting in variable default values" +} +default_val_body() { + TEST=0 + # Check that IFS is applied to text from ${x-...} unless it is inside + # any set of "..." + check 'set -- ${x-a b c}; echo $#' 3 + + check 'set -- ${x-"a b" c}; echo $#' 2 + check 'set -- ${x-a "b c"}; echo $#' 2 + check 'set -- ${x-"a b c"}; echo $#' 1 + + check "set -- \${x-'a b' c}; echo \$#" 2 + check "set -- \${x-a 'b c'}; echo \$#" 2 + check "set -- \${x-'a b c'}; echo \$#" 1 + + check 'set -- ${x-a\ b c}; echo $#' 2 + check 'set -- ${x-a b\ c}; echo $#' 2 + check 'set -- ${x-a\ b\ c}; echo $#' 1 + + check 'set -- ${x}; echo $#' 0 + check 'set -- ${x-}; echo $#' 0 + check 'set -- ${x-""}; echo $#' 1 + check 'set -- ""${x}; echo $#' 1 + check 'set -- ""${x-}; echo $#' 1 + check 'set -- ""${x-""}; echo $#' 1 + check 'set -- ${x}""; echo $#' 1 + check 'set -- ${x-}""; echo $#' 1 + check 'set -- ${x-""}""; echo $#' 1 + check 'set -- ""${x}""; echo $#' 1 + check 'set -- ""${x-}""; echo $#' 1 + check 'set -- ""${x-""}""; echo $#' 1 + + check 'for i in ${x-a b c}; do echo "z${i}z"; done' \ + 'zaz zbz zcz' + check 'for i in ${x-"a b" c}; do echo "z${i}z"; done' \ + 'za bz zcz' + check 'for i in ${x-"a ${x-b c}" d}; do echo "z${i}z"; done' \ + 'za b cz zdz' + check 'for i in ${x-a ${x-b c} d}; do echo "z${i}z"; done' \ + 'zaz zbz zcz zdz' + + # I am not sure these two are correct, the rules on quoting word + # in ${var-word} are peculiar, and hard to fathom... + # They are what the NetBSD shell does, and bash, not the freebsd shell + # (as of Mar 1, 2016) + + check 'for i in ${x-"a ${x-"b c"}" d}; do echo "z${i}z"; done' \ + 'za b cz zdz' + check 'for i in ${x-a ${x-"b c"} d}; do echo "z${i}z"; done' \ + 'zaz zb cz zdz' +} + +atf_test_case replacement_val +replacement_val_head() { + atf_set "descr" "Checks field splitting in variable replacement values" +} +replacement_val_body() { + TEST=0 + + # Check that IFS is applied to text from ${x+...} unless it is inside + # any set of "...", or whole expansion is quoted, or both... + + check 'x=BOGUS; set -- ${x+a b c}; echo $#' 3 + + check 'x=BOGUS; set -- ${x+"a b" c}; echo $#' 2 + check 'x=BOGUS; set -- ${x+a "b c"}; echo $#' 2 + check 'x=BOGUS; set -- ${x+"a b c"}; echo $#' 1 + + check "x=BOGUS; set -- \${x+'a b' c}; echo \$#" 2 + check "x=BOGUS; set -- \${x+a 'b c'}; echo \$#" 2 + check "x=BOGUS; set -- \${x+'a b c'}; echo \$#" 1 + + check 'x=BOGUS; set -- ${x+a\ b c}; echo $#' 2 + check 'x=BOGUS; set -- ${x+a b\ c}; echo $#' 2 + check 'x=BOGUS; set -- ${x+a\ b\ c}; echo $#' 1 + + check 'x=BOGUS; set -- ${x+}; echo $#' 0 + check 'x=BOGUS; set -- ${x+""}; echo $#' 1 + check 'x=BOGUS; set -- ""${x+}; echo $#' 1 + check 'x=BOGUS; set -- ""${x+""}; echo $#' 1 + check 'x=BOGUS; set -- ${x+}""; echo $#' 1 + check 'x=BOGUS; set -- ${x+""}""; echo $#' 1 + check 'x=BOGUS; set -- ""${x+}""; echo $#' 1 + check 'x=BOGUS; set -- ""${x+""}""; echo $#' 1 + + # verify that the value of $x does not affecty the value of ${x+...} + check 'x=BOGUS; set -- ${x+}; echo X$1' X + check 'x=BOGUS; set -- ${x+""}; echo X$1' X + check 'x=BOGUS; set -- ""${x+}; echo X$1' X + check 'x=BOGUS; set -- ""${x+""}; echo X$1' X + check 'x=BOGUS; set -- ${x+}""; echo X$1' X + check 'x=BOGUS; set -- ${x+""}""; echo X$1' X + check 'x=BOGUS; set -- ""${x+}""; echo X$1' X + check 'x=BOGUS; set -- ""${x+""}""; echo X$1' X + + check 'x=BOGUS; set -- ${x+}; echo X${1-:}X' X:X + check 'x=BOGUS; set -- ${x+""}; echo X${1-:}X' XX + check 'x=BOGUS; set -- ""${x+}; echo X${1-:}X' XX + check 'x=BOGUS; set -- ""${x+""}; echo X${1-:}X' XX + check 'x=BOGUS; set -- ${x+}""; echo X${1-:}X' XX + check 'x=BOGUS; set -- ${x+""}""; echo X${1-:}X' XX + check 'x=BOGUS; set -- ""${x+}""; echo X${1-:}X' XX + check 'x=BOGUS; set -- ""${x+""}""; echo X${1-:}X' XX + + # and validate that the replacement can be used as expected + check 'x=BOGUS; for i in ${x+a b c}; do echo "z${i}z"; done'\ + 'zaz zbz zcz' + check 'x=BOGUS; for i in ${x+"a b" c}; do echo "z${i}z"; done'\ + 'za bz zcz' + check 'x=BOGUS; for i in ${x+"a ${x+b c}" d}; do echo "z${i}z"; done'\ + 'za b cz zdz' + check 'x=BOGUS; for i in ${x+"a ${x+"b c"}" d}; do echo "z${i}z"; done'\ + 'za b cz zdz' + check 'x=BOGUS; for i in ${x+a ${x+"b c"} d}; do echo "z${i}z"; done'\ + 'zaz zb cz zdz' + check 'x=BOGUS; for i in ${x+a ${x+b c} d}; do echo "z${i}z"; done'\ + 'zaz zbz zcz zdz' +} + +atf_test_case ifs_alpha +ifs_alpha_head() { + atf_set "descr" "Checks that field splitting works with alphabetic" \ + "characters" +} +ifs_alpha_body() { + unset x + + TEST=0 + # repeat with an alphabetic in IFS + check 'IFS=q; set ${x-aqbqc}; echo $#' 3 + check 'IFS=q; for i in ${x-aqbqc}; do echo "z${i}z"; done' \ + 'zaz zbz zcz' + check 'IFS=q; for i in ${x-"aqb"qc}; do echo "z${i}z"; done' \ + 'zaqbz zcz' + check 'IFS=q; for i in ${x-"aq${x-bqc}"qd}; do echo "z${i}z"; done' \ + 'zaqbqcz zdz' + check 'IFS=q; for i in ${x-"aq${x-"bqc"}"qd}; do echo "z${i}z"; done' \ + 'zaqbqcz zdz' + check 'IFS=q; for i in ${x-aq${x-"bqc"}qd}; do echo "z${i}z"; done' \ + 'zaz zbqcz zdz' +} + +atf_test_case quote +quote_head() { + atf_set "descr" "Checks that field splitting works with multi-word" \ + "fields" +} +quote_body() { + unset x + + TEST=0 + # Some quote propagation checks + check 'set "${x-a b c}"; echo $#' 1 + check 'set "${x-"a b" c}"; echo $1' 'a b c' + check 'for i in "${x-a b c}"; do echo "z${i}z"; done' 'za b cz' +} + +atf_test_case dollar_at +dollar_at_head() { + atf_set "descr" "Checks that field splitting works when expanding" \ + "\$@" +} +dollar_at_body() { + unset x + + TEST=0 + # Check we get "$@" right + + check 'set --; for i in x"$@"x; do echo "z${i}z"; done' 'zxxz' + check 'set a; for i in x"$@"x; do echo "z${i}z"; done' 'zxaxz' + check 'set a b; for i in x"$@"x; do echo "z${i}z"; done' 'zxaz zbxz' + + check 'set --; for i; do echo "z${i}z"; done' '' + check 'set --; for i in $@; do echo "z${i}z"; done' '' + check 'set --; for i in "$@"; do echo "z${i}z"; done' '' + # atf_expect_fail "PR bin/50834" + check 'set --; for i in ""$@; do echo "z${i}z"; done' 'zz' + # atf_expect_pass + check 'set --; for i in $@""; do echo "z${i}z"; done' 'zz' + check 'set --; for i in ""$@""; do echo "z${i}z"; done' 'zz' + check 'set --; for i in """$@"; do echo "z${i}z"; done' 'zz' + check 'set --; for i in "$@"""; do echo "z${i}z"; done' 'zz' + check 'set --; for i in """$@""";do echo "z${i}z"; done' 'zz' + + check 'set ""; for i; do echo "z${i}z"; done' 'zz' + check 'set ""; for i in "$@"; do echo "z${i}z"; done' 'zz' + check 'set "" ""; for i; do echo "z${i}z"; done' 'zz zz' + check 'set "" ""; for i in "$@"; do echo "z${i}z"; done' 'zz zz' + check 'set "" ""; for i in $@; do echo "z${i}z"; done' '' + + check 'set "a b" c; for i; do echo "z${i}z"; done' \ + 'za bz zcz' + check 'set "a b" c; for i in "$@"; do echo "z${i}z"; done' \ + 'za bz zcz' + check 'set "a b" c; for i in $@; do echo "z${i}z"; done' \ + 'zaz zbz zcz' + check 'set " a b " c; for i in "$@"; do echo "z${i}z"; done' \ + 'z a b z zcz' + + check 'set a b c; for i in "$@$@"; do echo "z${i}z"; done' \ + 'zaz zbz zcaz zbz zcz' + check 'set a b c; for i in "$@""$@";do echo "z${i}z"; done' \ + 'zaz zbz zcaz zbz zcz' +} + +atf_test_case ifs +ifs_head() { + atf_set "descr" "Checks that IFS correctly configures field" \ + "splitting behavior" +} +ifs_body() { + unset x + + TEST=0 + # Some IFS tests + check 't="-- "; IFS=" "; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '0' + check 't=" x"; IFS=" x"; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '1' + check 't=" x "; IFS=" x"; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '1' + check 't=axb; IFS="x"; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '2 a:b' + check 't="a x b"; IFS="x"; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '2 a : b' + check 't="a xx b"; IFS="x"; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '3 a :: b' + check 't="a xx b"; IFS="x "; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '3 a::b' + # A recent 'clarification' means that a single trailing IFS non-whitespace + # doesn't generate an empty parameter + check 't="xax"; IFS="x"; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '2 :a' + check 't="xax "; IFS="x "; set $t; IFS=":"; r="$*"; IFS=; echo $# $r' '2 :a' + # Verify that IFS isn't being applied where it shouldn't be. + check 'IFS="x"; set axb; IFS=":"; r="$*"; IFS=; echo $# $r' '1 axb' +} + +atf_test_case var_length +var_length_head() { + atf_set "descr" "Checks that field splitting works when expanding" \ + "a variable's length" +} +var_length_body() { + TEST=0 + + long=12345678123456781234567812345678 + long=$long$long$long$long + export long + + # first test that the test method works... + check 'set -u; : ${long}; echo ${#long}' '128' + + # Check that we apply IFS to ${#var} + check 'echo ${#long}; IFS=2; echo ${#long}; set 1 ${#long};echo $#' \ + '128 1 8 3' + check 'IFS=2; set ${x-${#long}}; IFS=" "; echo $* $#' '1 8 2' + check 'IFS=2; set ${x-"${#long}"}; IFS=" "; echo $* $#' '128 1' +} + +atf_init_test_cases() { + atf_add_test_case for + atf_add_test_case default_val + atf_add_test_case replacement_val + atf_add_test_case ifs_alpha + atf_add_test_case quote + atf_add_test_case dollar_at + atf_add_test_case ifs + atf_add_test_case var_length +} |