# $NetBSD: t_cmdsub.sh,v 1.5 2017/06/16 07:37:41 kre Exp $
#
# Copyright (c) 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 implementation of "sh" to test
: ${TEST_SH:="/bin/sh"}
#
# This file tests command substitutions ( `...` and $( ... ) )
#
# CAUTION:
# Be careful attempting running these tests outside the ATF environment
# Some of the tests run "rm *" in the current directory to clean up
# An ATF test directory should be empty already, outside ATF, anything
atf_test_case a_basic_cmdsub
a_basic_cmdsub_head() {
atf_set "descr" 'Test operation of simple $( ) substitutions'
}
a_basic_cmdsub_body() {
atf_check -s exit:0 -o match:'Result is true today' -e empty \
${TEST_SH} -c \
'echo Result is $( true && echo true || echo false ) today'
atf_check -s exit:0 -o match:'Result is false today' -e empty \
${TEST_SH} -c \
'echo Result is $( false && echo true || echo false ) today'
atf_check -s exit:0 -o match:'aaabbbccc' -e empty \
${TEST_SH} -c 'echo aaa$( echo bbb )ccc'
atf_check -s exit:0 -o match:'aaabbb cccddd' -e empty \
${TEST_SH} -c 'echo aaa$( echo bbb ccc )ddd'
atf_check -s exit:0 -o inline:'aaabbb cccddd\n' -e empty \
${TEST_SH} -c 'echo aaa$( echo bbb; echo ccc )ddd'
atf_check -s exit:0 -o inline:'aaabbb\ncccddd\n' -e empty \
${TEST_SH} -c 'echo "aaa$( echo bbb; echo ccc )ddd"'
atf_check -s exit:0 -o inline:'some string\n' -e empty \
${TEST_SH} -c 'X=$( echo some string ); echo "$X"'
atf_check -s exit:0 -o inline:'weird; string *\n' -e empty \
${TEST_SH} -c 'X=$( echo "weird; string *" ); echo "$X"'
rm -f * 2>/dev/null || :
for f in file-1 file-2
do
cp /dev/null "$f"
done
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found $( echo * )'
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found "$( echo * )"'
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found $('" echo '*' )"
atf_check -s exit:0 -o match:'Found \*' -e empty \
${TEST_SH} -c 'echo Found "$('" echo '*' "')"'
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found $('" echo \\* )"
atf_check -s exit:0 -o match:'Found \*' -e empty \
${TEST_SH} -c 'echo Found "$('" echo \\* )"\"
}
atf_test_case b_basic_backticks
b_basic_backticks_head() {
atf_set "descr" 'Test operation of old style ` ` substitutions'
}
b_basic_backticks_body() {
atf_check -s exit:0 -o match:'Result is true today' -e empty \
${TEST_SH} -c \
'echo Result is `true && echo true || echo false` today'
atf_check -s exit:0 -o match:'Result is false today' -e empty \
${TEST_SH} -c \
'echo Result is `false && echo true || echo false` today'
atf_check -s exit:0 -o match:'aaabbbccc' -e empty \
${TEST_SH} -c 'echo aaa` echo bbb `ccc'
atf_check -s exit:0 -o match:'aaabbb cccddd' -e empty \
${TEST_SH} -c 'echo aaa` echo bbb ccc `ddd'
atf_check -s exit:0 -o inline:'aaabbb cccddd\n' -e empty \
${TEST_SH} -c 'echo aaa` echo bbb; echo ccc `ddd'
atf_check -s exit:0 -o inline:'aaabbb\ncccddd\n' -e empty \
${TEST_SH} -c 'echo "aaa` echo bbb; echo ccc `ddd"'
atf_check -s exit:0 -o inline:'some string\n' -e empty \
${TEST_SH} -c 'X=` echo some string `; echo "$X"'
atf_check -s exit:0 -o inline:'weird; string *\n' -e empty \
${TEST_SH} -c 'X=` echo "weird; string *" `; echo "$X"'
rm -f * 2>/dev/null || :
for f in file-1 file-2
do
cp /dev/null "$f"
done
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found ` echo * `'
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found "` echo * `"'
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found `'" echo '*' "'`'
atf_check -s exit:0 -o match:'Found \*' -e empty \
${TEST_SH} -c 'echo Found "`'" echo '*' "'`"'
atf_check -s exit:0 -o match:'Found file-1 file-2' -e empty \
${TEST_SH} -c 'echo Found `'" echo \\* "'`'
atf_check -s exit:0 -o match:'Found \*' -e empty \
${TEST_SH} -c 'echo Found "`'" echo \\* "'`"'
}
atf_test_case c_nested_cmdsub
c_nested_cmdsub_head() {
atf_set "descr" "Test that cmd substitutions can be nested"
}
c_nested_cmdsub_body() {
atf_check -s exit:0 -o match:'__foobarbletch__' -e empty \
${TEST_SH} -c 'echo __$( echo foo$(echo bar)bletch )__'
atf_check -s exit:0 -o match:'_abcde_' -e empty \
${TEST_SH} -c 'echo _$(echo a$(echo $(echo b)c$(echo d))e )_'
atf_check -s exit:0 -o match:'123454321' -e empty \
${TEST_SH} -c 'echo 1$(echo 2$(echo 3$(echo 4$(echo 5)4)3)2)1'
}
atf_test_case d_nested_backticks
d_nested_backticks_head() {
atf_set "descr" "Tests that old style backtick cmd subs can be nested"
}
d_nested_backticks_body() {
atf_check -s exit:0 -o match:'__foobarbletch__' -e empty \
${TEST_SH} -c 'echo __` echo foo\`echo bar\`bletch `__'
atf_check -s exit:0 -o match:'_abcde_' -e empty \
${TEST_SH} -c \
'echo _`echo a\`echo \\\`echo b\\\`c\\\`echo d\\\`\`e `_'
atf_check -s exit:0 -o match:'123454321' -e empty \
${TEST_SH} -c \
'echo 1`echo 2\`echo 3\\\`echo 4\\\\\\\`echo 5\\\\\\\`4\\\`3\`2`1'
}
atf_test_case e_perverse_mixing
e_perverse_mixing_head() {
atf_set "descr" \
"Checks various mixed new and old style cmd substitutions"
}
e_perverse_mixing_body() {
atf_check -s exit:0 -o match:'__foobarbletch__' -e empty \
${TEST_SH} -c 'echo __$( echo foo`echo bar`bletch )__'
atf_check -s exit:0 -o match:'__foobarbletch__' -e empty \
${TEST_SH} -c 'echo __` echo foo$(echo bar)bletch `__'
atf_check -s exit:0 -o match:'_abcde_' -e empty \
${TEST_SH} -c 'echo _$(echo a`echo $(echo b)c$(echo d)`e )_'
atf_check -s exit:0 -o match:'_abcde_' -e empty \
${TEST_SH} -c 'echo _`echo a$(echo \`echo b\`c\`echo d\`)e `_'
atf_check -s exit:0 -o match:'12345654321' -e empty \
${TEST_SH} -c \
'echo 1`echo 2$(echo 3\`echo 4\\\`echo 5$(echo 6)5\\\`4\`3)2`1'
}
atf_test_case f_redirect_in_cmdsub
f_redirect_in_cmdsub_head() {
atf_set "descr" "Checks that redirects work in command substitutions"
}
f_redirect_in_cmdsub_body() {
atf_require_prog cat
atf_require_prog rm
rm -f file 2>/dev/null || :
atf_check -s exit:0 -o match:'_aa_' -e empty \
${TEST_SH} -c 'echo _$( echo a$( echo b > file )a)_'
atf_check -s exit:0 -o match:b -e empty ${TEST_SH} -c 'cat file'
atf_check -s exit:0 -o match:'_aba_' -e empty \
${TEST_SH} -c 'echo _$( echo a$( cat < file )a)_'
atf_check -s exit:0 -o match:'_aa_' -e empty \
${TEST_SH} -c 'echo _$( echo a$( echo d >> file )a)_'
atf_check -s exit:0 -o inline:'b\nd\n' -e empty ${TEST_SH} -c 'cat file'
atf_check -s exit:0 -o match:'_aa_' -e match:'not error' \
${TEST_SH} -c 'echo _$( echo a$( echo not error >&2 )a)_'
}
atf_test_case g_redirect_in_backticks
g_redirect_in_backticks_head() {
atf_set "descr" "Checks that redirects work in old style cmd sub"
}
g_redirect_in_backticks_body() {
atf_require_prog cat
atf_require_prog rm
rm -f file 2>/dev/null || :
atf_check -s exit:0 -o match:'_aa_' -e empty \
${TEST_SH} -c 'echo _` echo a\` echo b > file \`a`_'
atf_check -s exit:0 -o match:b -e empty ${TEST_SH} -c 'cat file'
atf_check -s exit:0 -o match:'_aba_' -e empty \
${TEST_SH} -c 'echo _` echo a\` cat < file \`a`_'
atf_check -s exit:0 -o match:'_aa_' -e empty \
${TEST_SH} -c 'echo _` echo a\` echo d >> file \`a`_'
atf_check -s exit:0 -o inline:'b\nd\n' -e empty ${TEST_SH} -c 'cat file'
atf_check -s exit:0 -o match:'_aa_' -e match:'not error' \
${TEST_SH} -c 'echo _` echo a\` echo not error >&2 \`a`_'
}
atf_test_case h_vars_in_cmdsub
h_vars_in_cmdsub_head() {
atf_set "descr" "Check that variables work in command substitutions"
}
h_vars_in_cmdsub_body() {
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo __$( echo ${X} )__'
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo __$( echo "${X}" )__'
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo "__$( echo ${X} )__"'
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo "__$( echo "${X}" )__"'
atf_check -s exit:0 -o inline:'a\n\nb\n\nc\n' -e empty \
${TEST_SH} -c "for X in a '' b '' c"'; do echo $( echo "$X" ); done'
atf_check -s exit:0 -o match:'__acd__' -e empty \
${TEST_SH} -c 'X=; unset Y; echo "__$( echo a${X-b}${Y-c}d)__"'
atf_check -s exit:0 -o match:'__abcd__' -e empty \
${TEST_SH} -c 'X=; unset Y; echo "__$( echo a${X:-b}${Y:-c}d)__"'
atf_check -s exit:0 -o match:'__XYX__' -e empty \
${TEST_SH} -c 'X=X; echo "__${X}$( X=Y; echo ${X} )${X}__"'
atf_check -s exit:0 -o match:'__def__' -e empty \
${TEST_SH} -c 'X=abc; echo "__$(X=def; echo "${X}" )__"'
atf_check -s exit:0 -o inline:'abcdef\nabc\n' -e empty \
${TEST_SH} -c 'X=abc; echo "$X$(X=def; echo ${X} )"; echo $X'
}
atf_test_case i_vars_in_backticks
i_vars_in_backticks_head() {
atf_set "descr" "Checks that variables work in old style cmd sub"
}
i_vars_in_backticks_body() {
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo __` echo ${X} `__'
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo __` echo "${X}" `__'
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo "__` echo ${X} `__"'
atf_check -s exit:0 -o match:'__abc__' -e empty \
${TEST_SH} -c 'X=abc; echo "__` echo \"${X}\" `__"'
atf_check -s exit:0 -o inline:'a\n\nb\n\nc\n' -e empty \
${TEST_SH} -c "for X in a '' b '' c"'; do echo $( echo "$X" ); done'
atf_check -s exit:0 -o match:'__acd__' -e empty \
${TEST_SH} -c 'X=; unset Y; echo "__$( echo a${X-b}${Y-c}d)__"'
atf_check -s exit:0 -o match:'__abcd__' -e empty \
${TEST_SH} -c 'X=; unset Y; echo "__$( echo a${X:-b}${Y:-c}d)__"'
atf_check -s exit:0 -o match:'__XYX__' -e empty \
${TEST_SH} -c 'X=X; echo "__${X}$( X=Y; echo ${X} )${X}__"'
atf_check -s exit:0 -o inline:'abcdef\nabc\n' -e empty \
${TEST_SH} -c 'X=abc; echo "$X`X=def; echo \"${X}\" `";echo $X'
# The following is nonsense, so is not included ...
# atf_check -s exit:0 -o match:'__abc__' -e empty \
# oV cV oV cV
# ${TEST_SH} -c 'X=abc; echo "__`X=def echo "${X}" `__"'
# `start in " ^ " ends, ` not yet
}
atf_test_case j_cmdsub_in_varexpand
j_cmdsub_in_varexpand_head() {
atf_set "descr" "Checks that command sub can be used in var expansion"
}
j_cmdsub_in_varexpand_body() {
atf_check -s exit:0 -o match:'foo' -e empty \
${TEST_SH} -c 'X=set; echo ${X+$(echo foo)}'
atf_check -s exit:0 -o match:'set' -e empty \
${TEST_SH} -c 'X=set; echo ${X-$(echo foo)}'
rm -f bar 2>/dev/null || :
atf_check -s exit:0 -o match:'set' -e empty \
${TEST_SH} -c 'X=set; echo ${X-$(echo foo > bar)}'
test -f bar && atf_fail "bar should not exist, but does"
atf_check -s exit:0 -o inline:'\n' -e empty \
${TEST_SH} -c 'X=set; echo ${X+$(echo foo > bar)}'
test -f bar || atf_fail "bar should exist, but does not"
}
atf_test_case k_backticks_in_varexpand
k_backticks_in_varexpand_head() {
atf_set "descr" "Checks that old style cmd sub works in var expansion"
}
k_backticks_in_varexpand_body() {
atf_check -s exit:0 -o match:'foo' -e empty \
${TEST_SH} -c 'X=set; echo ${X+`echo foo`}'
atf_check -s exit:0 -o match:'set' -e empty \
${TEST_SH} -c 'X=set; echo ${X-`echo foo`}'
rm -f bar 2>/dev/null || :
atf_check -s exit:0 -o match:'set' -e empty \
${TEST_SH} -c 'X=set; echo ${X-`echo foo > bar`}'
test -f bar && atf_fail "bar should not exist, but does"
atf_check -s exit:0 -o inline:'\n' -e empty \
${TEST_SH} -c 'X=set; echo ${X+`echo foo > bar`}'
test -f bar || atf_fail "bar should exist, but does not"
}
atf_test_case l_arithmetic_in_cmdsub
l_arithmetic_in_cmdsub_head() {
atf_set "descr" "Checks that arithmetic works in cmd substitutions"
}
l_arithmetic_in_cmdsub_body() {
atf_check -s exit:0 -o inline:'1 + 1 = 2\n' -e empty \
${TEST_SH} -c 'echo 1 + 1 = $( echo $(( 1 + 1 )) )'
atf_check -s exit:0 -o inline:'X * Y = 6\n' -e empty \
${TEST_SH} -c 'X=2; Y=3; echo X \* Y = $( echo $(( X * Y )) )'
atf_check -s exit:0 -o inline:'Y % X = 1\n' -e empty \
${TEST_SH} -c 'X=2; Y=3; echo Y % X = $( echo $(( $Y % $X )) )'
}
atf_test_case m_arithmetic_in_backticks
m_arithmetic_in_backticks_head() {
atf_set "descr" "Checks that arithmetic works in old style cmd sub"
}
m_arithmetic_in_backticks_body() {
atf_check -s exit:0 -o inline:'2 + 3 = 5\n' -e empty \
${TEST_SH} -c 'echo 2 + 3 = ` echo $(( 2 + 3 )) `'
atf_check -s exit:0 -o inline:'X * Y = 6\n' -e empty \
${TEST_SH} -c 'X=2; Y=3; echo X \* Y = ` echo $(( X * Y )) `'
atf_check -s exit:0 -o inline:'Y % X = 1\n' -e empty \
${TEST_SH} -c 'X=2; Y=3; echo Y % X = ` echo $(( $Y % $X )) `'
}
atf_test_case n_cmdsub_in_arithmetic
n_cmdsub_in_arithmetic_head() {
atf_set "descr" "Tests uses of command substitutions in arithmetic"
}
n_cmdsub_in_arithmetic_body() {
atf_check -s exit:0 -o inline:'7\n' -e empty \
${TEST_SH} -c 'echo $(( $( echo 3 ) $( echo + ) $( echo 4 ) ))'
atf_check -s exit:0 -o inline:'11\n7\n18\n4\n1\n' -e empty \
${TEST_SH} -c \
'for op in + - \* / %
do
echo $(( $( echo 9 ) $( echo "${op}" ) $( echo 2 ) ))
done'
}
atf_test_case o_backticks_in_arithmetic
o_backticks_in_arithmetic_head() {
atf_set "descr" "Tests old style cmd sub used in arithmetic"
}
o_backticks_in_arithmetic_body() {
atf_check -s exit:0 -o inline:'33\n' -e empty \
${TEST_SH} -c 'echo $(( `echo 77` `echo -` `echo 44`))'
atf_check -s exit:0 -o inline:'14\n8\n33\n3\n2\n' -e empty \
${TEST_SH} -c \
'for op in + - \* / %
do
echo $((`echo 11``echo "${op}"``echo 3`))
done'
}
atf_test_case p_cmdsub_in_heredoc
p_cmdsub_in_heredoc_head() {
atf_set "descr" "Checks that cmdsubs work inside a here document"
}
p_cmdsub_in_heredoc_body() {
atf_require_prog cat
atf_check -s exit:0 -o inline:'line 1+1\nline 2\nline 3\n' -e empty \
${TEST_SH} -c \
'cat <<- EOF
$( echo line 1 )$( echo +1 )
$( echo line 2;echo line 3 )
EOF'
}
atf_test_case q_backticks_in_heredoc
q_backticks_in_heredoc_head() {
atf_set "descr" "Checks that old style cmdsubs work in here docs"
}
q_backticks_in_heredoc_body() {
atf_require_prog cat
atf_check -s exit:0 -o inline:'Mary had a\nlittle\nlamb\n' -e empty \
${TEST_SH} -c \
'cat <<- EOF
`echo Mary ` `echo had a `
` echo little; echo lamb `
EOF'
}
atf_test_case r_heredoc_in_cmdsub
r_heredoc_in_cmdsub_head() {
atf_set "descr" "Checks that here docs work inside cmd subs"
}
r_heredoc_in_cmdsub_body() {
atf_require_prog cat
atf_check -s exit:0 -o inline:'Mary had a\nlittle\nlamb\n' -e empty \
${TEST_SH} -c 'echo "$( cat <<- \EOF
Mary had a
little
lamb
EOF
)"'
atf_check -s exit:0 -e empty \
-o inline:'Mary had 1\nlittle\nlamb\nMary had 4\nlittle\nlambs\n' \
${TEST_SH} -c 'for N in 1 4; do echo "$( cat <<- EOF
Mary had ${N}
little
lamb$( [ $N -gt 1 ] && echo s )
EOF
)"; done'
atf_check -s exit:0 -o inline:'A Calculation:\n2 * 7 = 14\n' -e empty \
${TEST_SH} -c 'echo "$( cat <<- EOF
A Calculation:
2 * 7 = $(( 2 * 7 ))
EOF
)"'
}
atf_test_case s_heredoc_in_backticks
s_heredoc_in_backticks_head() {
atf_set "descr" "Checks that here docs work inside old style cmd subs"
}
s_heredoc_in_backticks_body() {
atf_require_prog cat
atf_check -s exit:0 -o inline:'Mary had a little lamb\n' -e empty \
${TEST_SH} -c 'echo ` cat <<- \EOF
Mary had a
little
lamb
EOF
`'
atf_check -s exit:0 -o inline:'A Calculation:\n17 / 3 = 5\n' -e empty \
${TEST_SH} -c 'echo "` cat <<- EOF
A Calculation:
17 / 3 = $(( 17 / 3 ))
EOF
`"'
}
atf_test_case t_nested_cmdsubs_in_heredoc
t_nested_cmdsubs_in_heredoc_head() {
atf_set "descr" "Checks nested command substitutions in here docs"
}
t_nested_cmdsubs_in_heredoc_body() {
atf_require_prog cat
atf_require_prog rm
rm -f * 2>/dev/null || :
echo "Hello" > File
atf_check -s exit:0 -o inline:'Hello U\nHelp me!\n' -e empty \
${TEST_SH} -c 'cat <<- EOF
$(cat File) U
$( V=$(cat File); echo "${V%lo}p" ) me!
EOF'
rm -f * 2>/dev/null || :
echo V>V ; echo A>A; echo R>R
echo Value>VAR
atf_check -s exit:0 -o inline:'$2.50\n' -e empty \
${TEST_SH} -c 'cat <<- EOF
$(Value='\''$2.50'\'';eval echo $(eval $(cat V)$(cat A)$(cat R)=\'\''\$$(cat $(cat V)$(cat A)$(cat R))\'\''; eval echo \$$(set -- *;echo ${3}${1}${2})))
EOF'
}
atf_test_case u_nested_backticks_in_heredoc
u_nested_backticks_in_heredoc_head() {
atf_set "descr" "Checks nested old style cmd subs in here docs"
}
u_nested_backticks_in_heredoc_body() {
atf_require_prog cat
atf_require_prog rm
rm -f * 2>/dev/null || :
echo "Hello" > File
atf_check -s exit:0 -o inline:'Hello U\nHelp me!\n' -e empty \
${TEST_SH} -c 'cat <<- EOF
`cat File` U
`V=\`cat File\`; echo "${V%lo}p" ` me!
EOF'
rm -f * 2>/dev/null || :
echo V>V ; echo A>A; echo R>R
echo Value>VAR
atf_check -s exit:0 -o inline:'$5.20\n' -e empty \
${TEST_SH} -c 'cat <<- EOF
`Value='\''$5.20'\'';eval echo \`eval \\\`cat V\\\`\\\`cat A\\\`\\\`cat R\\\`=\\\'\''\\\$\\\`cat \\\\\\\`cat V\\\\\\\`\\\\\\\`cat A\\\\\\\`\\\\\\\`cat R\\\\\\\`\\\`\\\'\''; eval echo \\\$\\\`set -- *;echo \\\\\${3}\\\\\${1}\\\\\${2}\\\`\``
EOF'
}
atf_test_case v_cmdsub_paren_tests
v_cmdsub__paren_tests_head() {
atf_set "descr" "tests with cmdsubs containing embedded ')'"
}
v_cmdsub_paren_tests_body() {
# Tests from:
# http://www.in-ulm.de/~mascheck/various/cmd-subst/
# (slightly modified.)
atf_check -s exit:0 -o inline:'A.1\n' -e empty ${TEST_SH} -c \
'echo $(
case x in x) echo A.1;; esac
)'
atf_check -s exit:0 -o inline:'A.2\n' -e empty ${TEST_SH} -c \
'echo $(
case x in x) echo A.2;; esac # comment
)'
atf_check -s exit:0 -o inline:'A.3\n' -e empty ${TEST_SH} -c \
'echo $(
case x in (x) echo A.3;; esac
)'
atf_check -s exit:0 -o inline:'A.4\n' -e empty ${TEST_SH} -c \
'echo $(
case x in (x) echo A.4;; esac # comment
)'
atf_check -s exit:0 -o inline:'A.5\n' -e empty ${TEST_SH} -c \
'echo $(
case x in (x) echo A.5
esac
)'
atf_check -s exit:0 -o inline:'B: quoted )\n' -e empty ${TEST_SH} -c \
'echo $(
echo '\''B: quoted )'\''
)'
atf_check -s exit:0 -o inline:'C: comment then closing paren\n' \
-e empty ${TEST_SH} -c \
'echo $(
echo C: comment then closing paren # )
)'
atf_check -s exit:0 -o inline:'D.1: here-doc with )\n' \
-e empty ${TEST_SH} -c \
'echo $(
cat <<-\eof
D.1: here-doc with )
eof
)'
# D.2 is a bogus test.
atf_check -s exit:0 -o inline:'D.3: here-doc with \()\n' \
-e empty ${TEST_SH} -c \
'echo $(
cat <<-\eof
D.3: here-doc with \()
eof
)'
atf_check -s exit:0 -e empty \
-o inline:'E: here-doc terminated with a parenthesis ("academic")\n' \
${TEST_SH} -c \
'echo $(
cat <<-\)
E: here-doc terminated with a parenthesis ("academic")
)
)'
atf_check -s exit:0 -e empty \
-o inline:'F.1: here-doc embed with unbal single, back- or doublequote '\''\n' \
${TEST_SH} -c \
'echo $(
cat <<-"eof"
F.1: here-doc embed with unbal single, back- or doublequote '\''
eof
)'
atf_check -s exit:0 -e empty \
-o inline:'F.2: here-doc embed with unbal single, back- or doublequote "\n' \
${TEST_SH} -c \
'echo $(
cat <<-"eof"
F.2: here-doc embed with unbal single, back- or doublequote "
eof
)'
atf_check -s exit:0 -e empty \
-o inline:'F.3: here-doc embed with unbal single, back- or doublequote `\n' \
${TEST_SH} -c \
'echo $(
cat <<-"eof"
F.3: here-doc embed with unbal single, back- or doublequote `
eof
)'
atf_check -s exit:0 -e empty -o inline:'G: backslash at end of line\n' \
${TEST_SH} -c \
'echo $(
echo G: backslash at end of line # \
)'
atf_check -s exit:0 -e empty \
-o inline:'H: empty command-substitution\n' \
${TEST_SH} -c 'echo H: empty command-substitution $( )'
}
atf_test_case w_heredoc_outside_cmdsub
w_heredoc_outside_cmdsub_head() {
atf_set "descr" "Checks that here docs work inside cmd subs"
}
w_heredoc_outside_cmdsub_body() {
atf_require_prog cat
atf_check -s exit:0 -o inline:'Mary had a\nlittle\nlamb\n' -e empty \
${TEST_SH} -c 'echo "$( cat <<- \EOF )"
Mary had a
little
lamb
EOF
'
atf_check -s exit:0 -e empty \
-o inline:'Mary had 1\nlittle\nlamb\nMary had 4\nlittle\nlambs\n' \
${TEST_SH} -c 'for N in 1 4; do echo "$( cat <<- EOF )"
Mary had ${N}
little
lamb$( [ $N -gt 1 ] && echo s )
EOF
done'
atf_check -s exit:0 -o inline:'A Calculation:\n2 * 7 = 14\n' -e empty \
${TEST_SH} -c 'echo "$( cat <<- EOF)"
A Calculation:
2 * 7 = $(( 2 * 7 ))
EOF
'
}
atf_test_case x_heredoc_outside_backticks
x_heredoc_outside_backticks_head() {
atf_set "descr" "Checks that here docs work inside old style cmd subs"
}
x_heredoc_outside_backticks_body() {
atf_require_prog cat
atf_check -s exit:0 -o inline:'Mary had a little lamb\n' -e empty \
${TEST_SH} -c 'echo ` cat <<- \EOF `
Mary had a
little
lamb
EOF
'
atf_check -s exit:0 -o inline:'A Calculation:\n17 / 3 = 5\n' -e empty \
${TEST_SH} -c 'echo "` cat <<- EOF `"
A Calculation:
17 / 3 = $(( 17 / 3 ))
EOF
'
}
atf_test_case y_many_embedded_nl
y_many_embedded_nl_head() {
atf_set "descr" "Checks command substitutions that return many lines"
}
y_many_embedded_nl_body() {
atf_require_prog wc
atf_require_prog seq
# first make sure it should work
atf_check -s exit:0 -o match:'1002' -e empty \
${TEST_SH} -c "{ printf '%s\n' x
for a in \$( seq 1000 ); do printf '\n'; done
printf '%s\n' y; } | wc -l"
# then use a cmd-sub to get the same thing
atf_check -s exit:0 -o match:'1002' -e empty \
${TEST_SH} -c "printf '%s\n' \"\$( printf '%s\n' x
for a in \$( seq 1000 ); do printf '\n'; done
printf '%s\n' y )\" | wc -l"
# and a much bigger one.
atf_check -s exit:0 -o match:'10002' -e empty \
${TEST_SH} -c "printf '%s\n' \"\$( printf '%s\n' x
for a in \$( seq 10000 ); do printf '\n'; done
printf '%s\n' y )\" | wc -l"
}
atf_test_case z_absurd_heredoc_cmdsub_combos
z_absurd_heredoc_cmdsub_combos_head() {
atf_set "descr" "perverse and unusual cmd substitutions & more"
}
z_absurd_heredoc_cmdsub_combos_body() {
echo "Help!" > help
# This version works in NetBSD (& FreeBSD)'s sh (and most others)
atf_check -s exit:0 -o inline:'Help!\nMe 2\n' -e empty ${TEST_SH} -c '
cat <<- EOF
$(
cat <<- STOP
$(
cat `echo help`
)
STOP
)
$(
cat <<- END 4<<-TRASH
Me $(( 1 + 1 ))
END
This is unused noise!
TRASH
)
EOF
'
# atf_expect_fail "PR bin/50993 - heredoc parsing done incorrectly"
atf_check -s exit:0 -o inline:'Help!\nMe 2\n' -e empty ${TEST_SH} -c '
cat <<- EOF
$(
cat << STOP
$(
cat `echo help`
)
STOP
)
$(
cat <<- END 4<<TRASH
Me $(( 1 + 1 ))
END
This is unused noise!
TRASH
)
EOF
'
}
atf_init_test_cases() {
atf_add_test_case a_basic_cmdsub
atf_add_test_case b_basic_backticks
atf_add_test_case c_nested_cmdsub
atf_add_test_case d_nested_backticks
atf_add_test_case e_perverse_mixing
atf_add_test_case f_redirect_in_cmdsub
atf_add_test_case g_redirect_in_backticks
atf_add_test_case h_vars_in_cmdsub
atf_add_test_case i_vars_in_backticks
atf_add_test_case j_cmdsub_in_varexpand
atf_add_test_case k_backticks_in_varexpand
atf_add_test_case l_arithmetic_in_cmdsub
atf_add_test_case m_arithmetic_in_backticks
atf_add_test_case n_cmdsub_in_arithmetic
atf_add_test_case o_backticks_in_arithmetic
atf_add_test_case p_cmdsub_in_heredoc
atf_add_test_case q_backticks_in_heredoc
atf_add_test_case r_heredoc_in_cmdsub
atf_add_test_case s_heredoc_in_backticks
atf_add_test_case t_nested_cmdsubs_in_heredoc
atf_add_test_case u_nested_backticks_in_heredoc
atf_add_test_case v_cmdsub_paren_tests
atf_add_test_case w_heredoc_outside_cmdsub
atf_add_test_case x_heredoc_outside_backticks
atf_add_test_case y_many_embedded_nl
atf_add_test_case z_absurd_heredoc_cmdsub_combos
}