| 1 | ## compare_shells: dash bash mksh
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| 2 |
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| 3 | # Cases from
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| 4 | # http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html
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| 5 |
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| 6 | # My tests
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| 7 |
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| 8 | #### Empty for loop is allowed
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| 9 | set -- a b
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| 10 | for x in; do
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| 11 | echo hi
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| 12 | echo $x
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| 13 | done
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| 14 | ## stdout-json: ""
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| 15 |
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| 16 | #### Empty for loop without in. Do can be on the same line I guess.
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| 17 | set -- a b
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| 18 | for x do
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| 19 | echo hi
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| 20 | echo $x
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| 21 | done
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| 22 | ## STDOUT:
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| 23 | hi
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| 24 | a
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| 25 | hi
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| 26 | b
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| 27 | ## END
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| 28 |
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| 29 | #### Empty case statement
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| 30 | case foo in
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| 31 | esac
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| 32 | ## stdout-json: ""
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| 33 |
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| 34 | #### Last case without ;;
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| 35 | foo=a
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| 36 | case $foo in
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| 37 | a) echo A ;;
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| 38 | b) echo B
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| 39 | esac
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| 40 | ## stdout: A
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| 41 |
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| 42 | #### Only case without ;;
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| 43 | foo=a
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| 44 | case $foo in
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| 45 | a) echo A
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| 46 | esac
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| 47 | ## stdout: A
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| 48 |
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| 49 | #### Case with optional (
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| 50 | foo=a
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| 51 | case $foo in
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| 52 | (a) echo A ;;
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| 53 | (b) echo B
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| 54 | esac
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| 55 | ## stdout: A
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| 56 |
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| 57 | #### Empty action for case is syntax error
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| 58 | # POSIX grammar seems to allow this, but bash and dash don't. Need ;;
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| 59 | foo=a
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| 60 | case $foo in
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| 61 | a)
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| 62 | b)
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| 63 | echo A ;;
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| 64 | d)
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| 65 | esac
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| 66 | ## status: 2
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| 67 | ## OK mksh status: 1
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| 68 |
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| 69 | #### Empty action is allowed for last case
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| 70 | foo=b
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| 71 | case $foo in
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| 72 | a) echo A ;;
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| 73 | b)
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| 74 | esac
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| 75 | ## stdout-json: ""
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| 76 |
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| 77 | #### Case with | pattern
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| 78 | foo=a
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| 79 | case $foo in
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| 80 | a|b) echo A ;;
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| 81 | c)
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| 82 | esac
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| 83 | ## stdout: A
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| 84 |
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| 85 |
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| 86 | #### Bare semi-colon not allowed
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| 87 | # This is disallowed by the grammar; bash and dash don't accept it.
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| 88 | ;
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| 89 | ## status: 2
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| 90 | ## OK mksh status: 1
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| 91 |
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| 92 |
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| 93 |
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| 94 | #
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| 95 | # Explicit tests
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| 96 | #
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| 97 |
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| 98 |
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| 99 |
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| 100 | #### Command substitution in default
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| 101 | echo ${x:-$(ls -d /bin)}
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| 102 | ## stdout: /bin
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| 103 |
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| 104 |
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| 105 | #### Arithmetic expansion
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| 106 | x=3
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| 107 | while [ $x -gt 0 ]
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| 108 | do
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| 109 | echo $x
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| 110 | x=$(($x-1))
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| 111 | done
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| 112 | ## STDOUT:
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| 113 | 3
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| 114 | 2
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| 115 | 1
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| 116 | ## END
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| 117 |
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| 118 | #### Newlines in compound lists
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| 119 | x=3
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| 120 | while
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| 121 | # a couple of <newline>s
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| 122 |
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| 123 | # a list
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| 124 | date && ls -d /bin || echo failed; cat tests/hello.txt
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| 125 | # a couple of <newline>s
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| 126 |
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| 127 | # another list
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| 128 | wc tests/hello.txt > _tmp/posix-compound.txt & true
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| 129 |
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| 130 | do
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| 131 | # 2 lists
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| 132 | ls -d /bin
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| 133 | cat tests/hello.txt
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| 134 | x=$(($x-1))
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| 135 | [ $x -eq 0 ] && break
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| 136 | done
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| 137 | # Not testing anything but the status since output is complicated
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| 138 | ## status: 0
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| 139 |
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| 140 | #### Multiple here docs on one line
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| 141 | cat <<EOF1; cat <<EOF2
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| 142 | one
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| 143 | EOF1
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| 144 | two
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| 145 | EOF2
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| 146 | ## STDOUT:
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| 147 | one
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| 148 | two
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| 149 | ## END
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| 150 |
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| 151 | #### cat here doc; echo; cat here doc
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| 152 | cat <<EOF1; echo two; cat <<EOF2
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| 153 | one
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| 154 | EOF1
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| 155 | three
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| 156 | EOF2
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| 157 | ## STDOUT:
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| 158 | one
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| 159 | two
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| 160 | three
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| 161 | ## END
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