| 1 | #
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| 2 | # Tests for pipelines.
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| 3 | # NOTE: Grammatically, ! is part of the pipeline:
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| 4 | #
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| 5 | # pipeline : pipe_sequence
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| 6 | # | Bang pipe_sequence
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| 7 |
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| 8 | #### Brace group in pipeline
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| 9 | { echo one; echo two; } | tac
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| 10 | ## stdout-json: "two\none\n"
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| 11 |
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| 12 | #### For loop starts pipeline
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| 13 | for w in one two; do
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| 14 | echo $w
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| 15 | done | tac
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| 16 | ## stdout-json: "two\none\n"
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| 17 |
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| 18 | #### While Loop ends pipeline
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| 19 | seq 3 | while read i
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| 20 | do
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| 21 | echo ".$i"
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| 22 | done
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| 23 | ## stdout-json: ".1\n.2\n.3\n"
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| 24 |
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| 25 | #### Redirect in Pipeline
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| 26 | echo hi 1>&2 | wc -l
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| 27 | ## stdout: 0
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| 28 | ## BUG zsh stdout: 1
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| 29 |
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| 30 | #### Pipeline comments
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| 31 | echo abcd | # input
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| 32 | # blank line
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| 33 | tr a-z A-Z # transform
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| 34 | ## stdout: ABCD
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| 35 |
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| 36 | #### Exit code is last status
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| 37 | echo a | egrep '[0-9]+'
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| 38 | ## status: 1
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| 39 |
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| 40 | #### PIPESTATUS
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| 41 | return3() {
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| 42 | return 3
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| 43 | }
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| 44 | { sleep 0.03; exit 1; } | { sleep 0.02; exit 2; } | { sleep 0.01; return3; }
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| 45 | echo ${PIPESTATUS[@]}
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| 46 | ## stdout: 1 2 3
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| 47 | ## N-I dash status: 2
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| 48 | ## N-I dash stdout-json: ""
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| 49 | ## N-I zsh status: 0
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| 50 | ## N-I zsh stdout-json: "\n"
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| 51 |
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| 52 | #### PIPESTATUS is set on simple commands, but NOT in OSH
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| 53 | case $SH in dash|zsh) exit ;; esac
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| 54 |
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| 55 | false
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| 56 | echo pipestatus ${PIPESTATUS[@]}
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| 57 |
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| 58 | ## STDOUT:
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| 59 | pipestatus 1
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| 60 | ## END
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| 61 | ## OK osh STDOUT:
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| 62 | pipestatus
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| 63 | ## END
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| 64 | ## N-I dash/zsh STDOUT:
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| 65 | ## END
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| 66 |
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| 67 | #### PIPESTATUS with shopt -s lastpipe
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| 68 | shopt -s lastpipe
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| 69 | return3() {
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| 70 | return 3
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| 71 | }
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| 72 | { sleep 0.03; exit 1; } | { sleep 0.02; exit 2; } | { sleep 0.01; return3; }
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| 73 | echo ${PIPESTATUS[@]}
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| 74 | ## stdout: 1 2 3
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| 75 | ## N-I dash status: 2
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| 76 | ## N-I dash stdout-json: ""
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| 77 | ## N-I zsh status: 0
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| 78 | ## N-I zsh stdout-json: "\n"
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| 79 |
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| 80 | #### |&
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| 81 | stdout_stderr.py |& cat
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| 82 | ## STDOUT:
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| 83 | STDERR
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| 84 | STDOUT
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| 85 | ## END
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| 86 | ## status: 0
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| 87 | ## N-I dash/mksh stdout-json: ""
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| 88 | ## N-I dash status: 2
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| 89 | ## N-I osh stdout-json: ""
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| 90 | ## N-I osh status: 1
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| 91 |
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| 92 | #### ! turns non-zero into zero
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| 93 | ! $SH -c 'exit 42'; echo $?
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| 94 | ## stdout: 0
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| 95 | ## status: 0
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| 96 |
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| 97 | #### ! turns zero into 1
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| 98 | ! $SH -c 'exit 0'; echo $?
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| 99 | ## stdout: 1
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| 100 | ## status: 0
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| 101 |
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| 102 | #### ! in if
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| 103 | if ! echo hi; then
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| 104 | echo TRUE
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| 105 | else
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| 106 | echo FALSE
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| 107 | fi
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| 108 | ## stdout-json: "hi\nFALSE\n"
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| 109 | ## status: 0
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| 110 |
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| 111 | #### ! with ||
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| 112 | ! echo hi || echo FAILED
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| 113 | ## stdout-json: "hi\nFAILED\n"
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| 114 | ## status: 0
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| 115 |
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| 116 | #### ! with { }
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| 117 | ! { echo 1; echo 2; } || echo FAILED
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| 118 | ## stdout-json: "1\n2\nFAILED\n"
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| 119 | ## status: 0
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| 120 |
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| 121 | #### ! with ( )
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| 122 | ! ( echo 1; echo 2 ) || echo FAILED
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| 123 | ## stdout-json: "1\n2\nFAILED\n"
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| 124 | ## status: 0
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| 125 |
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| 126 | #### ! is not a command
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| 127 | v='!'
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| 128 | $v echo hi
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| 129 | ## status: 127
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| 130 |
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| 131 | #### Evaluation of argv[0] in pipeline occurs in child
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| 132 | ${cmd=echo} hi | wc -l
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| 133 | echo "cmd=$cmd"
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| 134 | ## STDOUT:
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| 135 | 1
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| 136 | cmd=
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| 137 | ## END
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| 138 | ## BUG zsh STDOUT:
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| 139 | 1
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| 140 | cmd=echo
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| 141 | ## END
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| 142 |
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| 143 | #### bash/dash/mksh run the last command is run in its own process
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| 144 | echo hi | read line
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| 145 | echo "line=$line"
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| 146 | ## stdout: line=hi
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| 147 | ## OK bash/dash/mksh stdout: line=
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| 148 |
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| 149 | #### shopt -s lastpipe (always on in OSH)
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| 150 | shopt -s lastpipe
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| 151 | echo hi | read line
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| 152 | echo "line=$line"
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| 153 | ## stdout: line=hi
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| 154 | ## N-I dash/mksh stdout: line=
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| 155 |
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| 156 | #### shopt -s lastpipe (always on in OSH)
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| 157 | shopt -s lastpipe
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| 158 | i=0
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| 159 | seq 3 | while read line; do
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| 160 | (( i++ ))
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| 161 | done
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| 162 | echo i=$i
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| 163 | ## stdout: i=3
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| 164 | ## N-I dash/mksh stdout: i=0
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| 165 |
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| 166 |
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| 167 | #### SIGPIPE causes pipeline to die (regression for issue #295)
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| 168 | cat /dev/urandom | sleep 0.1
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| 169 | echo ${PIPESTATUS[@]}
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| 170 |
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| 171 | # hm bash gives '1 0' which seems wrong
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| 172 |
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| 173 | ## STDOUT:
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| 174 | 141 0
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| 175 | ## END
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| 176 | ## BUG bash STDOUT:
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| 177 | 1 0
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| 178 | ## END
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| 179 | ## N-I zsh stdout:
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| 180 | ## N-I dash status: 2
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| 181 | ## N-I dash stdout-json: ""
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| 182 |
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| 183 | #### Nested pipelines
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| 184 | { sleep 0.1 | seq 3; } | cat
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| 185 | { sleep 0.1 | seq 10; } | { cat | cat; } | wc -l
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| 186 | ## STDOUT:
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| 187 | 1
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| 188 | 2
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| 189 | 3
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| 190 | 10
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| 191 | ## END
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| 192 |
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| 193 | #### Pipeline in eval
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| 194 | ls /dev/null | eval 'cat | cat' | wc -l
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| 195 | ## STDOUT:
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| 196 | 1
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| 197 | ## END
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