1 # $NetBSD: t_varquote.sh,v 1.6 2024/04/28 07:27:40 rillig Exp $ 2 # 3 # Copyright (c) 2007 The NetBSD Foundation, Inc. 4 # All rights reserved. 5 # 6 # Redistribution and use in source and binary forms, with or without 7 # modification, are permitted provided that the following conditions 8 # are met: 9 # 1. Redistributions of source code must retain the above copyright 10 # notice, this list of conditions and the following disclaimer. 11 # 2. Redistributions in binary form must reproduce the above copyright 12 # notice, this list of conditions and the following disclaimer in the 13 # documentation and/or other materials provided with the distribution. 14 # 15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 # POSSIBILITY OF SUCH DAMAGE. 26 # 27 # the implementation of "sh" to test 28 : ${TEST_SH:="/bin/sh"} 29 30 # Variable quoting test. 31 32 check() { 33 if [ "$1" != "$2" ] 34 then 35 atf_fail "expected [$2], found [$1]" 1>&2 36 fi 37 } 38 39 atf_test_case all 40 all_head() { 41 atf_set "descr" "Basic checks for variable quoting" 42 } 43 all_body() { 44 45 cat <<-'EOF' > script.sh 46 T=0 47 check() { 48 T=$((${T} + 1)) 49 50 if [ "$1" != "$2" ] 51 then 52 printf '%s\n' "T${T}: expected [$2], found [$1]" 53 exit 1 54 fi 55 } 56 57 #1 58 foo='${a:-foo}' 59 check "$foo" '${a:-foo}' 60 #2 61 foo="${a:-foo}" 62 check "$foo" "foo" 63 #3 64 foo=${a:-"'{}'"} 65 check "$foo" "'{}'" 66 #4 67 foo=${a:-${b:-"'{}'"}} 68 check "$foo" "'{}'" 69 #5 70 # ${ } The ' are inside ".." so are literal (not quotes). 71 foo="${a-'}'}" 72 check "$foo" "''}" 73 #6 74 # The rules for quoting in ${var-word} expressions are somewhat 75 # weird, in the following there is not one quoted string being 76 # assigned to foo (with internally quoted sub-strings), rather 77 # it is a mixed quoted/unquoted string, with parts that are 78 # quoted, separated by 2 unquoted sections... 79 # qqqqqqqqqq uuuuuuuuuu qq uuuu qqqq 80 foo="${a:-${b:-"${c:-${d:-"x}"}}y}"}}z}" 81 # " z*" 82 # ${a:- } 83 # ${b:- } 84 # " y*" 85 # ${c:- } 86 # ${d:- } 87 # "x*" 88 check "$foo" "x}y}z}" 89 #7 90 # And believe it or not, this is the one that gives 91 # most problems, with 3 different observed outputs... 92 # qqqqq qq q is one interpretation 93 # qqqqq QQQQ q is another (most common) 94 # (the third is syntax error...) 95 foo="${a:-"'{}'"}" 96 check "$foo" "'{}'" 97 98 EOF 99 100 OUT=$( ${TEST_SH} script.sh 2>&1 ) 101 if [ $? -ne 0 ] 102 then 103 atf_fail "${OUT}" 104 elif [ -n "${OUT}" ] 105 then 106 atf_fail "script.sh unexpectedly said: ${OUT}" 107 fi 108 } 109 110 atf_test_case nested_quotes_multiword 111 nested_quotes_multiword_head() { 112 atf_set "descr" "Tests that having nested quoting in a multi-word" \ 113 "string works (PR bin/43597)" 114 } 115 nested_quotes_multiword_body() { 116 atf_check -s exit:0 -o match:"first-word second-word" -e empty \ 117 ${TEST_SH} -c 'echo "${foo:="first-word"} second-word"' 118 } 119 120 atf_test_case default_assignment_with_arith 121 default_assignment_with_arith_head() { 122 atf_set "descr" "Tests default variable assignment with arithmetic" \ 123 "string works (PR bin/50827)" 124 } 125 default_assignment_with_arith_body() { 126 atf_check -s exit:0 -o empty -e empty ${TEST_SH} -c ': "${x=$((1))}"' 127 atf_check -s exit:0 -o match:1 -e empty ${TEST_SH} -c 'echo "${x=$((1))}"' 128 } 129 130 atf_init_test_cases() { 131 atf_add_test_case all 132 atf_add_test_case nested_quotes_multiword 133 atf_add_test_case default_assignment_with_arith 134 } 135