| 1 | ## oils_failures_allowed: 2
|
| 2 | ## compare_shells: dash bash-4.4 mksh zsh
|
| 3 |
|
| 4 |
|
| 5 | # NOTE:
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| 6 | # - $! is tested in background.test.sh
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| 7 | # - $- is tested in sh-options
|
| 8 | #
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| 9 | # TODO: It would be nice to make a table, like:
|
| 10 | #
|
| 11 | # $$ $BASHPID $PPID $SHLVL $BASH_SUBSHELL
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| 12 | # X
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| 13 | # (Subshell, Command Sub, Pipeline, Spawn $0)
|
| 14 | #
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| 15 | # And see whether the variable changed.
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| 16 |
|
| 17 | #### $PWD is set
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| 18 | # Just test that it has a slash for now.
|
| 19 | echo $PWD | grep /
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| 20 | ## status: 0
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| 21 |
|
| 22 | #### $PWD is not only set, but exported
|
| 23 | env | grep PWD
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| 24 | ## status: 0
|
| 25 | ## BUG mksh status: 1
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| 26 |
|
| 27 | #### $PATH is set if unset at startup
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| 28 |
|
| 29 | # Get absolute path before changing PATH
|
| 30 | sh=$(which $SH)
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| 31 |
|
| 32 | old_path=$PATH
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| 33 | unset PATH
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| 34 |
|
| 35 | # BUG: when sh=bin/osh, we can't run bin/oils_for_unix.py
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| 36 | $sh -c 'echo $PATH' > path.txt
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| 37 |
|
| 38 | PATH=$old_path
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| 39 |
|
| 40 | # looks like PATH=/usr/bin:/bin for mksh, but more complicated for others
|
| 41 | # cat path.txt
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| 42 |
|
| 43 | # should contain /usr/bin
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| 44 | if egrep -q '(^|:)/usr/bin($|:)' path.txt; then
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| 45 | echo yes
|
| 46 | fi
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| 47 |
|
| 48 | # should contain /bin
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| 49 | if egrep -q '(^|:)/bin($|:)' path.txt ; then
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| 50 | echo yes
|
| 51 | fi
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| 52 |
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| 53 | ## STDOUT:
|
| 54 | yes
|
| 55 | yes
|
| 56 | ## END
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| 57 |
|
| 58 |
|
| 59 | #### $HOME is NOT set
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| 60 | case $SH in *zsh) echo 'zsh sets HOME'; exit ;; esac
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| 61 |
|
| 62 | home=$(echo $HOME)
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| 63 | test "$home" = ""
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| 64 | echo status=$?
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| 65 |
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| 66 | env | grep HOME
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| 67 | echo status=$?
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| 68 |
|
| 69 | # not in interactive shell either
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| 70 | $SH -i -c 'echo $HOME' | grep /
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| 71 | echo status=$?
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| 72 |
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| 73 | ## STDOUT:
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| 74 | status=0
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| 75 | status=1
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| 76 | status=1
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| 77 | ## END
|
| 78 | ## BUG zsh STDOUT:
|
| 79 | zsh sets HOME
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| 80 | ## END
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| 81 |
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| 82 |
|
| 83 | #### $1 .. $9 are scoped, while $0 is not
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| 84 | fun() {
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| 85 | echo $0 | grep -o 'sh'
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| 86 | echo $1 $2
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| 87 | }
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| 88 | fun a b
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| 89 |
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| 90 | ## STDOUT:
|
| 91 | sh
|
| 92 | a b
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| 93 | ## END
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| 94 | ## BUG zsh STDOUT:
|
| 95 | a b
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| 96 | ## END
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| 97 |
|
| 98 | #### $?
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| 99 | echo $? # starts out as 0
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| 100 | sh -c 'exit 33'
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| 101 | echo $?
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| 102 | ## STDOUT:
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| 103 | 0
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| 104 | 33
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| 105 | ## END
|
| 106 | ## status: 0
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| 107 |
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| 108 | #### $#
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| 109 | set -- 1 2 3 4
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| 110 | echo $#
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| 111 | ## stdout: 4
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| 112 | ## status: 0
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| 113 |
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| 114 | #### $$ looks like a PID
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| 115 | # Just test that it has decimal digits
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| 116 | echo $$ | egrep '[0-9]+'
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| 117 | ## status: 0
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| 118 |
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| 119 | #### $$ doesn't change with subshell or command sub
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| 120 | # Just test that it has decimal digits
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| 121 | set -o errexit
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| 122 | die() {
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| 123 | echo 1>&2 "$@"; exit 1
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| 124 | }
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| 125 | parent=$$
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| 126 | test -n "$parent" || die "empty PID in parent"
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| 127 | ( child=$$
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| 128 | test -n "$child" || die "empty PID in subshell"
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| 129 | test "$parent" = "$child" || die "should be equal: $parent != $child"
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| 130 | echo 'subshell OK'
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| 131 | )
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| 132 | echo $( child=$$
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| 133 | test -n "$child" || die "empty PID in command sub"
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| 134 | test "$parent" = "$child" || die "should be equal: $parent != $child"
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| 135 | echo 'command sub OK'
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| 136 | )
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| 137 | exit 3 # make sure we got here
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| 138 | ## status: 3
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| 139 | ## STDOUT:
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| 140 | subshell OK
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| 141 | command sub OK
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| 142 | ## END
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| 143 |
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| 144 | #### $BASHPID DOES change with subshell and command sub
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| 145 | set -o errexit
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| 146 | die() {
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| 147 | echo 1>&2 "$@"; exit 1
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| 148 | }
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| 149 | parent=$BASHPID
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| 150 | test -n "$parent" || die "empty BASHPID in parent"
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| 151 | ( child=$BASHPID
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| 152 | test -n "$child" || die "empty BASHPID in subshell"
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| 153 | test "$parent" != "$child" || die "should not be equal: $parent = $child"
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| 154 | echo 'subshell OK'
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| 155 | )
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| 156 | echo $( child=$BASHPID
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| 157 | test -n "$child" || die "empty BASHPID in command sub"
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| 158 | test "$parent" != "$child" ||
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| 159 | die "should not be equal: $parent = $child"
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| 160 | echo 'command sub OK'
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| 161 | )
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| 162 | exit 3 # make sure we got here
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| 163 |
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| 164 | # mksh also implements BASHPID!
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| 165 |
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| 166 | ## status: 3
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| 167 | ## STDOUT:
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| 168 | subshell OK
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| 169 | command sub OK
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| 170 | ## END
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| 171 | ## N-I dash/zsh status: 1
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| 172 | ## N-I dash/zsh stdout-json: ""
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| 173 |
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| 174 | #### Background PID $! looks like a PID
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| 175 | sleep 0.01 &
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| 176 | pid=$!
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| 177 | wait
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| 178 | echo $pid | egrep '[0-9]+' >/dev/null
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| 179 | echo status=$?
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| 180 | ## stdout: status=0
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| 181 |
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| 182 | #### $PPID
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| 183 | echo $PPID | egrep '[0-9]+'
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| 184 | ## status: 0
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| 185 |
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| 186 | # NOTE: There is also $BASHPID
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| 187 |
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| 188 | #### $PIPESTATUS
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| 189 | echo hi | sh -c 'cat; exit 33' | wc -l >/dev/null
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| 190 | argv.py "${PIPESTATUS[@]}"
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| 191 | ## status: 0
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| 192 | ## STDOUT:
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| 193 | ['0', '33', '0']
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| 194 | ## END
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| 195 | ## N-I dash stdout-json: ""
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| 196 | ## N-I dash status: 2
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| 197 | ## N-I zsh STDOUT:
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| 198 | ['']
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| 199 | ## END
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| 200 |
|
| 201 | #### $RANDOM
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| 202 | expr $0 : '.*/osh$' && exit 99 # Disabled because of spec-runner.sh issue
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| 203 | echo $RANDOM | egrep '[0-9]+'
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| 204 | ## status: 0
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| 205 | ## N-I dash status: 1
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| 206 |
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| 207 | #### $UID and $EUID
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| 208 | # These are both bash-specific.
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| 209 | set -o errexit
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| 210 | echo $UID | egrep -o '[0-9]+' >/dev/null
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| 211 | echo $EUID | egrep -o '[0-9]+' >/dev/null
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| 212 | echo status=$?
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| 213 | ## stdout: status=0
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| 214 | ## N-I dash/mksh stdout-json: ""
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| 215 | ## N-I dash/mksh status: 1
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| 216 |
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| 217 | #### $OSTYPE is non-empty
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| 218 | test -n "$OSTYPE"
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| 219 | echo status=$?
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| 220 | ## STDOUT:
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| 221 | status=0
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| 222 | ## END
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| 223 | ## N-I dash/mksh STDOUT:
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| 224 | status=1
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| 225 | ## END
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| 226 |
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| 227 | #### $HOSTNAME
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| 228 | test "$HOSTNAME" = "$(hostname)"
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| 229 | echo status=$?
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| 230 | ## STDOUT:
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| 231 | status=0
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| 232 | ## END
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| 233 | ## N-I dash/mksh/zsh STDOUT:
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| 234 | status=1
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| 235 | ## END
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| 236 |
|
| 237 | #### $LINENO is the current line, not line of function call
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| 238 | echo $LINENO # first line
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| 239 | g() {
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| 240 | argv.py $LINENO # line 3
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| 241 | }
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| 242 | f() {
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| 243 | argv.py $LINENO # line 6
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| 244 | g
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| 245 | argv.py $LINENO # line 8
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| 246 | }
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| 247 | f
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| 248 | ## STDOUT:
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| 249 | 1
|
| 250 | ['6']
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| 251 | ['3']
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| 252 | ['8']
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| 253 | ## END
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| 254 | ## BUG zsh STDOUT:
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| 255 | 1
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| 256 | ['1']
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| 257 | ['1']
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| 258 | ['3']
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| 259 | ## END
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| 260 | ## BUG dash STDOUT:
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| 261 | 1
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| 262 | ['2']
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| 263 | ['2']
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| 264 | ['4']
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| 265 | ## END
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| 266 |
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| 267 | #### $LINENO in "bare" redirect arg (bug regression)
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| 268 | filename=$TMP/bare3
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| 269 | rm -f $filename
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| 270 | > $TMP/bare$LINENO
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| 271 | test -f $filename && echo written
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| 272 | echo $LINENO
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| 273 | ## STDOUT:
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| 274 | written
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| 275 | 5
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| 276 | ## END
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| 277 | ## BUG zsh STDOUT:
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| 278 | ## END
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| 279 |
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| 280 | #### $LINENO in redirect arg (bug regression)
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| 281 | filename=$TMP/lineno_regression3
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| 282 | rm -f $filename
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| 283 | echo x > $TMP/lineno_regression$LINENO
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| 284 | test -f $filename && echo written
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| 285 | echo $LINENO
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| 286 | ## STDOUT:
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| 287 | written
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| 288 | 5
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| 289 | ## END
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| 290 |
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| 291 | #### $LINENO in [[
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| 292 | echo one
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| 293 | [[ $LINENO -eq 2 ]] && echo OK
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| 294 | ## STDOUT:
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| 295 | one
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| 296 | OK
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| 297 | ## END
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| 298 | ## N-I dash status: 127
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| 299 | ## N-I dash stdout: one
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| 300 | ## N-I mksh status: 1
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| 301 | ## N-I mksh stdout: one
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| 302 |
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| 303 | #### $LINENO in ((
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| 304 | echo one
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| 305 | (( x = LINENO ))
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| 306 | echo $x
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| 307 | ## STDOUT:
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| 308 | one
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| 309 | 2
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| 310 | ## END
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| 311 | ## N-I dash stdout-json: "one\n\n"
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| 312 |
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| 313 | #### $LINENO in for loop
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| 314 | # hm bash doesn't take into account the word break. That's OK; we won't either.
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| 315 | echo one
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| 316 | for x in \
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| 317 | $LINENO zzz; do
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| 318 | echo $x
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| 319 | done
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| 320 | ## STDOUT:
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| 321 | one
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| 322 | 2
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| 323 | zzz
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| 324 | ## END
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| 325 | ## OK mksh STDOUT:
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| 326 | one
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| 327 | 1
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| 328 | zzz
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| 329 | ## END
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| 330 |
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| 331 | #### $LINENO in other for loops
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| 332 | set -- a b c
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| 333 | for x; do
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| 334 | echo $LINENO $x
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| 335 | done
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| 336 | ## STDOUT:
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| 337 | 3 a
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| 338 | 3 b
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| 339 | 3 c
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| 340 | ## END
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| 341 |
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| 342 | #### $LINENO in for (( loop
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| 343 | # This is a real edge case that I'm not sure we care about. We would have to
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| 344 | # change the span ID inside the loop to make it really correct.
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| 345 | echo one
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| 346 | for (( i = 0; i < $LINENO; i++ )); do
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| 347 | echo $i
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| 348 | done
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| 349 | ## STDOUT:
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| 350 | one
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| 351 | 0
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| 352 | 1
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| 353 | ## END
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| 354 | ## N-I dash stdout: one
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| 355 | ## N-I dash status: 2
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| 356 | ## BUG mksh stdout: one
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| 357 | ## BUG mksh status: 1
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| 358 |
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| 359 | #### $LINENO for assignment
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| 360 | a1=$LINENO a2=$LINENO
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| 361 | b1=$LINENO b2=$LINENO
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| 362 | echo $a1 $a2
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| 363 | echo $b1 $b2
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| 364 | ## STDOUT:
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| 365 | 1 1
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| 366 | 2 2
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| 367 | ## END
|
| 368 |
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| 369 | #### $LINENO in case
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| 370 | case $LINENO in
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| 371 | 1) echo 'got line 1' ;;
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| 372 | *) echo line=$LINENO
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| 373 | esac
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| 374 | ## STDOUT:
|
| 375 | got line 1
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| 376 | ## END
|
| 377 | ## BUG mksh STDOUT:
|
| 378 | line=3
|
| 379 | ## END
|
| 380 |
|
| 381 | #### $_ with simple command and evaluation
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| 382 |
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| 383 | name=world
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| 384 | echo "hi $name"
|
| 385 | echo "$_"
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| 386 | ## STDOUT:
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| 387 | hi world
|
| 388 | hi world
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| 389 | ## END
|
| 390 | ## N-I dash/mksh STDOUT:
|
| 391 | hi world
|
| 392 |
|
| 393 | ## END
|
| 394 |
|
| 395 | #### $_ and ${_}
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| 396 | case $SH in (dash|mksh) exit ;; esac
|
| 397 |
|
| 398 | _var=value
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| 399 |
|
| 400 | : 42
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| 401 | echo $_ $_var ${_}var
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| 402 |
|
| 403 | : 'foo'"bar"
|
| 404 | echo $_
|
| 405 |
|
| 406 | ## STDOUT:
|
| 407 | 42 value 42var
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| 408 | foobar
|
| 409 | ## END
|
| 410 | ## N-I dash/mksh stdout-json: ""
|
| 411 |
|
| 412 | #### $_ with word splitting
|
| 413 | case $SH in (dash|mksh) exit ;; esac
|
| 414 |
|
| 415 | setopt shwordsplit # for ZSH
|
| 416 |
|
| 417 | x='with spaces'
|
| 418 | : $x
|
| 419 | echo $_
|
| 420 |
|
| 421 | ## STDOUT:
|
| 422 | spaces
|
| 423 | ## END
|
| 424 | ## N-I dash/mksh stdout-json: ""
|
| 425 |
|
| 426 | #### $_ with pipeline and subshell
|
| 427 | case $SH in (dash|mksh) exit ;; esac
|
| 428 |
|
| 429 | shopt -s lastpipe
|
| 430 |
|
| 431 | seq 3 | echo last=$_
|
| 432 |
|
| 433 | echo pipeline=$_
|
| 434 |
|
| 435 | ( echo subshell=$_ )
|
| 436 | echo done=$_
|
| 437 |
|
| 438 | ## STDOUT:
|
| 439 | last=
|
| 440 | pipeline=last=
|
| 441 | subshell=pipeline=last=
|
| 442 | done=pipeline=last=
|
| 443 | ## END
|
| 444 |
|
| 445 | # very weird semantics for zsh!
|
| 446 | ## OK zsh STDOUT:
|
| 447 | last=3
|
| 448 | pipeline=last=3
|
| 449 | subshell=
|
| 450 | done=
|
| 451 | ## END
|
| 452 |
|
| 453 | ## N-I dash/mksh stdout-json: ""
|
| 454 |
|
| 455 |
|
| 456 | #### $_ with && and ||
|
| 457 | case $SH in (dash|mksh) exit ;; esac
|
| 458 |
|
| 459 | echo hi && echo last=$_
|
| 460 | echo and=$_
|
| 461 |
|
| 462 | echo hi || echo last=$_
|
| 463 | echo or=$_
|
| 464 |
|
| 465 | ## STDOUT:
|
| 466 | hi
|
| 467 | last=hi
|
| 468 | and=last=hi
|
| 469 | hi
|
| 470 | or=hi
|
| 471 | ## END
|
| 472 |
|
| 473 | ## N-I dash/mksh stdout-json: ""
|
| 474 |
|
| 475 | #### $_ is not reset with (( and [[
|
| 476 |
|
| 477 | # bash is inconsistent because it does it for pipelines and assignments, but
|
| 478 | # not (( and [[
|
| 479 |
|
| 480 | case $SH in (dash|mksh) exit ;; esac
|
| 481 |
|
| 482 | echo simple
|
| 483 | (( a = 2 + 3 ))
|
| 484 | echo "(( $_"
|
| 485 |
|
| 486 | [[ a == *.py ]]
|
| 487 | echo "[[ $_"
|
| 488 |
|
| 489 | ## STDOUT:
|
| 490 | simple
|
| 491 | (( simple
|
| 492 | [[ (( simple
|
| 493 | ## END
|
| 494 |
|
| 495 | ## N-I dash/mksh stdout-json: ""
|
| 496 |
|
| 497 |
|
| 498 | #### $_ with assignments, arrays, etc.
|
| 499 | case $SH in (dash|mksh) exit ;; esac
|
| 500 |
|
| 501 | : foo
|
| 502 | echo "colon [$_]"
|
| 503 |
|
| 504 | s=bar
|
| 505 | echo "bare assign [$_]"
|
| 506 |
|
| 507 | # zsh uses declare; bash uses s=bar
|
| 508 | declare s=bar
|
| 509 | echo "declare [$_]"
|
| 510 |
|
| 511 | # zsh remains s:declare, bash resets it
|
| 512 | a=(1 2)
|
| 513 | echo "array [$_]"
|
| 514 |
|
| 515 | # zsh sets it to declare, bash uses the LHS a
|
| 516 | declare a=(1 2)
|
| 517 | echo "declare array [$_]"
|
| 518 |
|
| 519 | declare -g d=(1 2)
|
| 520 | echo "declare flag [$_]"
|
| 521 |
|
| 522 | ## STDOUT:
|
| 523 | colon [foo]
|
| 524 | bare assign []
|
| 525 | declare [s=bar]
|
| 526 | array []
|
| 527 | declare array [a]
|
| 528 | declare flag [d]
|
| 529 | ## END
|
| 530 |
|
| 531 | ## OK zsh STDOUT:
|
| 532 | colon [foo]
|
| 533 | bare assign []
|
| 534 | declare [declare]
|
| 535 | array [declare [declare]]
|
| 536 | declare array [declare]
|
| 537 | declare flag [-g]
|
| 538 | ## END
|
| 539 |
|
| 540 | ## OK osh STDOUT:
|
| 541 | colon [foo]
|
| 542 | bare assign [colon [foo]]
|
| 543 | declare [bare assign [colon [foo]]]
|
| 544 | array [declare [bare assign [colon [foo]]]]
|
| 545 | declare array [array [declare [bare assign [colon [foo]]]]]
|
| 546 | declare flag [declare array [array [declare [bare assign [colon [foo]]]]]]
|
| 547 | ## END
|
| 548 |
|
| 549 | ## N-I dash/mksh stdout-json: ""
|
| 550 |
|
| 551 | #### $_ with loop
|
| 552 |
|
| 553 | case $SH in (dash|mksh) exit ;; esac
|
| 554 |
|
| 555 | # zsh resets it when in a loop
|
| 556 |
|
| 557 | echo init
|
| 558 | echo begin=$_
|
| 559 | for x in 1 2 3; do
|
| 560 | echo prev=$_
|
| 561 | done
|
| 562 |
|
| 563 | ## STDOUT:
|
| 564 | init
|
| 565 | begin=init
|
| 566 | prev=begin=init
|
| 567 | prev=prev=begin=init
|
| 568 | prev=prev=prev=begin=init
|
| 569 | ## END
|
| 570 |
|
| 571 | ## OK zsh STDOUT:
|
| 572 | init
|
| 573 | begin=init
|
| 574 | prev=
|
| 575 | prev=prev=
|
| 576 | prev=prev=prev=
|
| 577 | ## END
|
| 578 | ## N-I dash/mksh stdout-json: ""
|
| 579 |
|
| 580 |
|
| 581 | #### $_ is not undefined on first use
|
| 582 | set -e
|
| 583 |
|
| 584 | x=$($SH -u -c 'echo prev=$_')
|
| 585 | echo status=$?
|
| 586 |
|
| 587 | # bash and mksh set $_ to $0 at first; zsh is empty
|
| 588 | #echo "$x"
|
| 589 |
|
| 590 | ## STDOUT:
|
| 591 | status=0
|
| 592 | ## END
|
| 593 |
|
| 594 | ## N-I dash status: 2
|
| 595 | ## N-I dash stdout-json: ""
|
| 596 |
|
| 597 | #### BASH_VERSION / OILS_VERSION
|
| 598 | case $SH in
|
| 599 | bash*)
|
| 600 | # BASH_VERSION=zz
|
| 601 |
|
| 602 | echo $BASH_VERSION | egrep -o '4\.4\.0' > /dev/null
|
| 603 | echo matched=$?
|
| 604 | ;;
|
| 605 | *osh)
|
| 606 | # note: version string is mutable like in bash. I guess that's useful for
|
| 607 | # testing? We might want a strict mode to eliminate that?
|
| 608 |
|
| 609 | echo $OILS_VERSION | egrep -o '[0-9]+\.[0-9]+\.' > /dev/null
|
| 610 | echo matched=$?
|
| 611 | ;;
|
| 612 | *)
|
| 613 | echo 'no version'
|
| 614 | ;;
|
| 615 | esac
|
| 616 | ## STDOUT:
|
| 617 | matched=0
|
| 618 | ## END
|
| 619 | ## N-I dash/mksh/zsh STDOUT:
|
| 620 | no version
|
| 621 | ## END
|
| 622 |
|
| 623 | #### $SECONDS
|
| 624 |
|
| 625 | # should be zero seconds
|
| 626 | echo seconds=$SECONDS
|
| 627 |
|
| 628 | ## status: 0
|
| 629 | ## STDOUT:
|
| 630 | seconds=0
|
| 631 | ## END
|
| 632 | ## N-I dash STDOUT:
|
| 633 | seconds=
|
| 634 | ## END
|