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# xtrace test. Test PS4 and line numbers, etc.
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## oils_failures_allowed: 1
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## compare_shells: bash dash mksh
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set -x
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echo 1
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unset PS4
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echo 2
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## STDOUT:
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1
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2
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## STDERR:
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+ echo 1
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+ unset PS4
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echo 2
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## END
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set -o verbose
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x=foo
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y=bar
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echo $x
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echo $(echo $y)
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## STDOUT:
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foo
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bar
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## STDERR:
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x=foo
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y=bar
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echo $x
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echo $(echo $y)
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## OK bash STDERR:
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x=foo
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y=bar
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echo $x
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echo $(echo $y)
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## END
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case $SH in (dash) exit ;; esac
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s=$'a\x03b\004c\x00d'
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set -o xtrace
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echo "$s"
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## stdout-repr: 'a\x03b\x04c\x00d\n'
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## STDERR:
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+ echo $'a\u0003b\u0004c\u0000d'
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## END
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## OK bash stdout-repr: 'a\x03b\x04c\n'
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## OK bash stderr-repr: "+ echo $'a\\003b\\004c'\n"
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# nonsensical output?
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## BUG mksh stdout-repr: 'a;\x04c\r\n'
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## BUG mksh stderr-repr: "+ echo $'a;\\004c\\r'\n"
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## N-I dash stdout-json: ""
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## N-I dash stderr-json: ""
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case $SH in (dash) exit ;; esac
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mu1='[μ]'
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mu2=$'[\u03bc]'
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set -o xtrace
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echo "$mu1" "$mu2"
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## STDOUT:
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[μ] [μ]
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## END
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## STDERR:
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+ echo '[μ]' '[μ]'
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## END
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## N-I dash stdout-json: ""
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## N-I dash stderr-json: ""
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set -o xtrace
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echo my-dir/my_file.cc
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## STDOUT:
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my-dir/my_file.cc
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## END
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## STDERR:
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+ echo my-dir/my_file.cc
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## END
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case $SH in (dash) exit ;; esac
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set -o xtrace
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echo $'[\t]'
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## stdout-json: "[\t]\n"
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## STDERR:
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+ echo $'[\t]'
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## END
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# this is a bug because it's hard to see
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## BUG bash stderr-json: "+ echo '[\t]'\n"
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## N-I dash stdout-json: ""
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## N-I dash stderr-json: ""
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set -o xtrace
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echo '1 2' \' \" \\
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## STDOUT:
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1 2 ' " \
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## END
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# YSH is different because backslashes require $'\\' and not '\', but that's OK
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## STDERR:
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+ echo '1 2' $'\'' '"' $'\\'
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## END
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## OK bash/mksh STDERR:
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+ echo '1 2' \' '"' '\'
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## END
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## BUG dash STDERR:
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+ echo 1 2 ' " \
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## END
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# bash and dash trace this badly. They print literal newlines, which I don't
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# want.
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set -x
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echo $'[\n]'
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## STDOUT:
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[
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]
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## STDERR:
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+ echo $'[\n]'
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## END
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# bash has ugly output that spans lines
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## OK bash STDERR:
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+ echo '[
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]'
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## END
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## N-I dash stdout-json: "$[\n]\n"
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## N-I dash stderr-json: "+ echo $[\\n]\n"
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set -x
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echo one >&2
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echo two >&2
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## stdout-json: ""
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## STDERR:
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+ echo one
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one
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+ echo two
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two
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## OK mksh STDERR:
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# mksh traces redirects!
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+ >&2
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+ echo one
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one
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+ >&2
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+ echo two
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two
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## END
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set -x
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x=1 x=2; echo $x; readonly x=3
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## STDOUT:
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2
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## END
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## STDERR:
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+ x=1
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+ x=2
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+ echo 2
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+ readonly x=3
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## END
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## OK dash STDERR:
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+ x=1 x=2
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+ echo 2
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+ readonly x=3
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## END
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## OK dash STDERR:
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+ x=1 x=2
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+ echo 2
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+ readonly x=3
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## END
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## OK bash STDERR:
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+ x=1
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+ x=2
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+ echo 2
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+ readonly x=3
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+ x=3
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## END
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## OK mksh STDERR:
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+ x=1 x=2
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+ echo 2
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+ readonly 'x=3'
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## END
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case $SH in (dash|mksh) exit ;; esac
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set -x
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dir=/
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if [[ -d $dir ]]; then
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(( a = 42 ))
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fi
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## stdout-json: ""
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## STDERR:
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+ dir=/
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+ [[ -d $dir ]]
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+ (( a = 42 ))
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## END
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## OK bash STDERR:
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+ dir=/
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+ [[ -d / ]]
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+ (( a = 42 ))
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## END
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## N-I dash/mksh stderr-json: ""
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set -x
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echo one
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f() {
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local PS4='- '
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echo func;
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}
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f
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echo two
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## STDERR:
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+ echo one
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+ f
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+ local 'PS4=- '
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- echo func
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+ echo two
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## END
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## OK osh STDERR:
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+ echo one
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+ f
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+ local PS4='- '
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- echo func
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+ echo two
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## END
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## OK dash STDERR:
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# dash loses information about spaces! There is a trailing space, but you
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# can't see it.
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+ echo one
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+ f
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+ local PS4=-
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- echo func
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+ echo two
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## END
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## OK mksh STDERR:
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# local gets turned into typeset
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+ echo one
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+ f
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+ typeset 'PS4=- '
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- echo func
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+ echo two
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## END
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PS4='+$x:'
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set -o xtrace
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x=1
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echo one
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x=2
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echo two
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## STDOUT:
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one
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two
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## END
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## STDERR:
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+:x=1
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+1:echo one
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+1:x=2
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+2:echo two
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## END
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## OK mksh STDERR:
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# mksh has trailing spaces
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+:x=1
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+1:echo one
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+1:x=2
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+2:echo two
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## END
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## OK osh/dash STDERR:
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# the PS4 string is evaluated AFTER the variable is set. That's OK
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+1:x=1
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+1:echo one
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+2:x=2
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+2:echo two
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## END
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# osh shows inline error; maybe fail like dash/mksh?
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x=1
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PS4='+${x'
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set -o xtrace
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echo one
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echo status=$?
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## STDOUT:
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one
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status=0
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## END
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# mksh and dash both fail. bash prints errors to stderr.
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## OK dash stdout-json: ""
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## OK dash status: 2
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## OK mksh stdout-json: ""
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## OK mksh status: 1
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# osh shows inline error; maybe fail like dash/mksh?
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x=1
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PS4='+$(x'
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set -o xtrace
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echo one
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echo status=$?
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## STDOUT:
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one
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status=0
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## END
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# mksh and dash both fail. bash prints errors to stderr.
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## OK dash stdout-json: ""
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## OK dash status: 2
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## OK mksh stdout-json: ""
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## OK mksh status: 1
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# osh shows inline error; maybe fail like dash/mksh?
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x=1
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PS4='+oops $(( 1 / 0 )) \$'
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set -o xtrace
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echo one
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echo status=$?
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## STDOUT:
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one
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status=0
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## END
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# mksh and dash both fail. bash prints errors to stderr.
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## OK dash stdout-json: ""
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## OK dash status: 2
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## OK mksh stdout-json: ""
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## OK mksh status: 1
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PS4='[last=$?] '
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set -x
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false
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echo ok
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## STDOUT:
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ok
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## END
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## STDERR:
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[last=0] false
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[last=1] echo ok
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## END
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## OK osh STDERR:
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[last=0] 'false'
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[last=1] echo ok
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## END
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