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sh: Add tests for #/##/%/%% on $* and $@.

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Although POSIX leaves things like ${*#X} unspecified, it occasionally occurs
in practice. Add some tests that seem to work sensibly.
This commit is contained in:
Jilles Tjoelker 2015-12-26 22:27:48 +00:00
parent b5e81ea6b0
commit cf1330bef9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=292758
2 changed files with 62 additions and 0 deletions
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1
bin/sh/tests/expansion/Makefile
View File

@ -90,5 +90,6 @@ FILES+= trim5.0
FILES+= trim6.0
FILES+= trim7.0
FILES+= trim8.0
FILES+= trim9.0
.include <bsd.test.mk>

61
bin/sh/tests/expansion/trim9.0 Normal file
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@ -0,0 +1,61 @@
# $FreeBSD$
# POSIX does not specify these but they occasionally occur in the wild.
# This just serves to keep working what currently works.
failures=''
ok=''
testcase() {
code="$1"
expected="$2"
oIFS="$IFS"
eval "$code"
IFS='|'
result="$#|$*"
IFS="$oIFS"
if [ "x$result" = "x$expected" ]; then
ok=x$ok
else
failures=x$failures
echo "For $code, expected $expected actual $result"
fi
}
testcase 'shift $#; set -- "${*#Q}"' '1|'
testcase 'shift $#; set -- "${*##Q}"' '1|'
testcase 'shift $#; set -- "${*%Q}"' '1|'
testcase 'shift $#; set -- "${*%%Q}"' '1|'
testcase 'set -- Q R; set -- "${*#Q}"' '1| R'
testcase 'set -- Q R; set -- "${*##Q}"' '1| R'
testcase 'set -- Q R; set -- "${*%R}"' '1|Q '
testcase 'set -- Q R; set -- "${*%%R}"' '1|Q '
testcase 'set -- Q R; set -- "${*#S}"' '1|Q R'
testcase 'set -- Q R; set -- "${*##S}"' '1|Q R'
testcase 'set -- Q R; set -- "${*%S}"' '1|Q R'
testcase 'set -- Q R; set -- "${*%%S}"' '1|Q R'
testcase 'set -- Q R; set -- ${*#Q}' '1|R'
testcase 'set -- Q R; set -- ${*##Q}' '1|R'
testcase 'set -- Q R; set -- ${*%R}' '1|Q'
testcase 'set -- Q R; set -- ${*%%R}' '1|Q'
testcase 'set -- Q R; set -- ${*#S}' '2|Q|R'
testcase 'set -- Q R; set -- ${*##S}' '2|Q|R'
testcase 'set -- Q R; set -- ${*%S}' '2|Q|R'
testcase 'set -- Q R; set -- ${*%%S}' '2|Q|R'
testcase 'set -- Q R; set -- ${@#Q}' '1|R'
testcase 'set -- Q R; set -- ${@##Q}' '1|R'
testcase 'set -- Q R; set -- ${@%R}' '1|Q'
testcase 'set -- Q R; set -- ${@%%R}' '1|Q'
testcase 'set -- Q R; set -- ${@#S}' '2|Q|R'
testcase 'set -- Q R; set -- ${@##S}' '2|Q|R'
testcase 'set -- Q R; set -- ${@%S}' '2|Q|R'
testcase 'set -- Q R; set -- ${@%%S}' '2|Q|R'
testcase 'set -- Q R; set -- "${@#Q}"' '2||R'
testcase 'set -- Q R; set -- "${@%R}"' '2|Q|'
testcase 'set -- Q R; set -- "${@%%R}"' '2|Q|'
testcase 'set -- Q R; set -- "${@#S}"' '2|Q|R'
testcase 'set -- Q R; set -- "${@##S}"' '2|Q|R'
testcase 'set -- Q R; set -- "${@%S}"' '2|Q|R'
testcase 'set -- Q R; set -- "${@%%S}"' '2|Q|R'
test "x$failures" = x