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Chet Ramey
52 lines
1.1 KiB
Plaintext
52 lines
1.1 KiB
Plaintext
# test suite contribution from Martijn Dekker
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defaultIFS=$IFS
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set -o errexit -o noglob
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(set -o pipefail) 2>/dev/null && set -o pipefail
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teststring=$(printf '\1\2\3\177')
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n=0
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trim_od() {
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od -t a | sed -n '1 { s/^0*[[:blank:]]*//; s/[[:blank:]]*$//; p; }'
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}
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doTest() {
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set -- "$teststring"
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eval "$testcmd"
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case ${IFS+s}${IFS:+n} in
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( sn ) i=$(printf %s "$IFS" | trim_od) ;;
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( s ) i='(null)' ;;
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( '' ) i='(unset)' ;;
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( * ) echo 'internal error!' >&2; exit 125 ;;
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esac
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printf '\n%03d: IFS = %s: %s\n' "$((n+=1))" "$i" "$testcmd"
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printf %s "$*${foo+/}${foo-}" | trim_od
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}
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doAllTests() {
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for testcmd in \
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'unset -v foo; set -- ${foo=$*}' \
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'unset -v foo; set -- ${foo="$*"}' \
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'unset -v foo; set -- "${foo=$*}"' \
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\
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'foo=; set -- ${foo:=$*}' \
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'foo=; set -- ${foo:="$*"}' \
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'foo=; set -- "${foo:=$*}"' \
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\
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'unset -v foo; set -- ${foo=$@}' \
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'unset -v foo; set -- ${foo="$@"}' \
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'unset -v foo; set -- "${foo=$@}"' \
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\
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'foo=; set -- ${foo:=$@}' \
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'foo=; set -- ${foo:="$@"}' \
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'foo=; set -- "${foo:=$@}"'
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do
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doTest "$testcmd"
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done
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}
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unset -v IFS; doAllTests
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IFS=''; doAllTests
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IFS='x'; doAllTests
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IFS=$defaultIFS; doAllTests
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