| 1 | ## oils_failures_allowed: 0
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| 2 | ## compare_shells: bash-4.4 mksh
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| 3 |
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| 4 | # NOTE: zsh passes about half, and fails about half. It supports a subset of
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| 5 | # [[ I guess.
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| 6 |
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| 7 | #### [[ glob matching, [[ has no glob expansion
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| 8 | [[ foo.py == *.py ]] && echo true
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| 9 | [[ foo.p == *.py ]] || echo false
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| 10 | ## stdout-json: "true\nfalse\n"
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| 11 |
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| 12 | #### [[ glob matching with escapes
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| 13 | [[ 'foo.*' == *."*" ]] && echo true
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| 14 | # note that the pattern arg to fnmatch should be '*.\*'
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| 15 | ## stdout: true
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| 16 |
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| 17 | #### equality
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| 18 | [[ '*.py' == '*.py' ]] && echo true
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| 19 | [[ foo.py == '*.py' ]] || echo false
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| 20 | ## stdout-json: "true\nfalse\n"
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| 21 |
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| 22 | #### [[ glob matching with unquoted var
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| 23 | pat=*.py
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| 24 | [[ foo.py == $pat ]] && echo true
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| 25 | [[ foo.p == $pat ]] || echo false
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| 26 | ## stdout-json: "true\nfalse\n"
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| 27 |
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| 28 | #### [[ regex matching
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| 29 | # mksh doesn't have this syntax of regex matching. I guess it comes from perl?
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| 30 | regex='.*\.py'
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| 31 | [[ foo.py =~ $regex ]] && echo true
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| 32 | [[ foo.p =~ $regex ]] || echo false
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| 33 | ## stdout-json: "true\nfalse\n"
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| 34 | ## N-I mksh stdout-json: ""
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| 35 | ## N-I mksh status: 1
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| 36 |
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| 37 | #### [[ regex syntax error
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| 38 | # hm, it doesn't show any error, but it exits 2.
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| 39 | [[ foo.py =~ * ]] && echo true
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| 40 | ## status: 2
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| 41 | ## N-I mksh status: 1
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| 42 |
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| 43 | #### [[ has no word splitting
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| 44 | var='one two'
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| 45 | [[ 'one two' == $var ]] && echo true
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| 46 | ## stdout: true
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| 47 |
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| 48 | #### [[ has quote joining
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| 49 | var='one two'
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| 50 | [[ 'one 'tw"o" == $var ]] && echo true
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| 51 | ## stdout: true
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| 52 |
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| 53 | #### [[ empty string is false
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| 54 | [[ 'a' ]] && echo true
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| 55 | [[ '' ]] || echo false
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| 56 | ## stdout-json: "true\nfalse\n"
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| 57 |
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| 58 | #### && chain
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| 59 | [[ t && t && '' ]] || echo false
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| 60 | ## stdout: false
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| 61 |
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| 62 | #### || chain
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| 63 | [[ '' || '' || t ]] && echo true
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| 64 | ## stdout: true
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| 65 |
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| 66 | #### [[ compound expressions
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| 67 | # Notes on whitespace:
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| 68 | # - 1 and == need space seprating them, but ! and ( don't.
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| 69 | # - [[ needs whitesapce after it, but ]] doesn't need whitespace before it!
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| 70 | [[ ''||! (1 == 2)&&(2 == 2)]] && echo true
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| 71 | ## stdout: true
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| 72 |
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| 73 | # NOTE on the two cases below. We're comparing
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| 74 | # (a || b) && c vs. a || (b && c)
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| 75 | #
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| 76 | # a = true, b = false, c = false is an example where they are different.
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| 77 | # && and || have precedence inside
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| 78 |
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| 79 | #### precedence of && and || inside [[
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| 80 | [[ True || '' && '' ]] && echo true
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| 81 | ## stdout: true
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| 82 |
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| 83 | #### precedence of && and || in a command context
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| 84 | if test True || test '' && test ''; then
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| 85 | echo YES
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| 86 | else
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| 87 | echo "NO precedence"
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| 88 | fi
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| 89 | ## stdout: NO precedence
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| 90 |
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| 91 | # http://tldp.org/LDP/abs/html/testconstructs.html#DBLBRACKETS
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| 92 |
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| 93 | #### Octal literals with -eq
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| 94 | shopt -u strict_arith || true
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| 95 | decimal=15
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| 96 | octal=017 # = 15 (decimal)
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| 97 | [[ $decimal -eq $octal ]] && echo true
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| 98 | [[ $decimal -eq ZZZ$octal ]] || echo false
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| 99 | ## STDOUT:
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| 100 | true
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| 101 | false
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| 102 | ## END
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| 103 | ## N-I mksh stdout: false
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| 104 | # mksh doesn't implement this syntax for literals.
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| 105 |
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| 106 | #### Hex literals with -eq
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| 107 | shopt -u strict_arith || true
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| 108 | decimal=15
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| 109 | hex=0x0f # = 15 (decimal)
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| 110 | [[ $decimal -eq $hex ]] && echo true
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| 111 | [[ $decimal -eq ZZZ$hex ]] || echo false
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| 112 | ## stdout-json: "true\nfalse\n"
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| 113 | ## N-I mksh stdout: false
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| 114 |
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| 115 | # TODO: Add tests for this
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| 116 | # https://www.gnu.org/software/bash/manual/bash.html#Bash-Conditional-Expressions
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| 117 | # When used with [[, the ‘<’ and ‘>’ operators sort lexicographically using the
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| 118 | # current locale. The test command uses ASCII ordering.
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| 119 |
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| 120 | #### > on strings
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| 121 | # NOTE: < doesn't need space, even though == does? That's silly.
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| 122 | [[ b>a ]] && echo true
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| 123 | [[ b<a ]] || echo false
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| 124 | ## stdout-json: "true\nfalse\n"
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| 125 |
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| 126 | #### != on strings
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| 127 | # NOTE: b!=a does NOT work
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| 128 | [[ b != a ]] && echo true
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| 129 | [[ a != a ]] || echo false
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| 130 | ## stdout-json: "true\nfalse\n"
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| 131 |
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| 132 | #### -eq on strings
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| 133 | # This is lame behavior: it does a conversion to 0 first for any string
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| 134 | shopt -u strict_arith || true
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| 135 | [[ a -eq a ]] && echo true
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| 136 | [[ a -eq b ]] && echo true
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| 137 | ## STDOUT:
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| 138 | true
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| 139 | true
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| 140 | ## END
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| 141 |
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| 142 | #### [[ compare with literal -f (compare with test-builtin.test.sh)
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| 143 | var=-f
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| 144 | [[ $var == -f ]] && echo true
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| 145 | [[ '-f' == $var ]] && echo true
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| 146 | ## stdout-json: "true\ntrue\n"
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| 147 |
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| 148 | #### [[ with op variable (compare with test-builtin.test.sh)
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| 149 | # Parse error -- parsed BEFORE evaluation of vars
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| 150 | op='=='
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| 151 | [[ a $op a ]] && echo true
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| 152 | [[ a $op b ]] || echo false
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| 153 | ## status: 2
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| 154 | ## OK mksh status: 1
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| 155 |
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| 156 | #### [[ with unquoted empty var (compare with test-builtin.test.sh)
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| 157 | empty=''
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| 158 | [[ $empty == '' ]] && echo true
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| 159 | ## stdout: true
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| 160 |
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| 161 | #### [[ at runtime doesn't work
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| 162 | dbracket=[[
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| 163 | $dbracket foo == foo ]]
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| 164 | ## status: 127
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| 165 |
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| 166 | #### [[ with env prefix doesn't work
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| 167 | FOO=bar [[ foo == foo ]]
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| 168 | ## status: 127
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| 169 |
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| 170 | #### [[ over multiple lines is OK
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| 171 | # Hm it seems you can't split anywhere?
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| 172 | [[ foo == foo
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| 173 | && bar == bar
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| 174 | ]] && echo true
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| 175 | ## status: 0
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| 176 | ## STDOUT:
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| 177 | true
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| 178 | ## END
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| 179 |
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| 180 | #### Argument that looks like a command word operator
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| 181 | [[ -f -f ]] || echo false
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| 182 | [[ -f == ]] || echo false
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| 183 | ## STDOUT:
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| 184 | false
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| 185 | false
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| 186 | ## END
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| 187 |
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| 188 | #### Argument that looks like a real operator
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| 189 | [[ -f < ]] && echo 'should be parse error'
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| 190 | ## status: 2
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| 191 | ## OK mksh status: 1
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| 192 |
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| 193 | #### User array compared to "$@" (broken unless shopt -s strict_array)
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| 194 | # Both are coerced to string! It treats it more like an UNQUOTED ${a[@]}.
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| 195 |
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| 196 | a=('1 3' 5)
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| 197 | b=(1 2 3)
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| 198 | set -- 1 '3 5'
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| 199 | [[ "$@" = "${a[@]}" ]] && echo true
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| 200 | [[ "$@" = "${b[@]}" ]] || echo false
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| 201 | ## STDOUT:
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| 202 | true
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| 203 | false
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| 204 | ## END
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| 205 |
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| 206 | #### Array coerces to string (shopt -s strict_array to disallow)
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| 207 | a=('1 3' 5)
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| 208 | [[ '1 3 5' = "${a[@]}" ]] && echo true
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| 209 | [[ '1 3 4' = "${a[@]}" ]] || echo false
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| 210 | ## STDOUT:
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| 211 | true
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| 212 | false
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| 213 | ## END
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| 214 |
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| 215 | #### (( array1 == array2 )) doesn't work
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| 216 | a=('1 3' 5)
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| 217 | b=('1 3' 5)
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| 218 | c=('1' '3 5')
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| 219 | d=('1' '3 6')
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| 220 |
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| 221 | # shells EXPAND a and b first
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| 222 | (( a == b ))
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| 223 | echo status=$?
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| 224 |
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| 225 | (( a == c ))
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| 226 | echo status=$?
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| 227 |
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| 228 | (( a == d ))
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| 229 | echo status=$?
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| 230 |
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| 231 | ## stdout-json: ""
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| 232 | ## status: 1
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| 233 | ## BUG bash STDOUT:
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| 234 | status=1
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| 235 | status=1
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| 236 | status=1
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| 237 | ## END
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| 238 | ## BUG bash status: 0
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| 239 |
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| 240 | #### Quotes don't matter in comparison
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| 241 | [[ '3' = 3 ]] && echo true
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| 242 | [[ '3' -eq 3 ]] && echo true
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| 243 | ## STDOUT:
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| 244 | true
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| 245 | true
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| 246 | ## END
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| 247 |
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| 248 | #### -eq does dynamic arithmetic parsing (not supported in OSH)
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| 249 | [[ 1+2 -eq 3 ]] && echo true
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| 250 | expr='1+2'
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| 251 | [[ $expr -eq 3 ]] && echo true # must be dynamically parsed
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| 252 | ## STDOUT:
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| 253 | true
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| 254 | true
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| 255 | ## END
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| 256 |
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| 257 | #### -eq coercion produces weird results
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| 258 | shopt -u strict_arith || true
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| 259 | [[ '' -eq 0 ]] && echo true
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| 260 | ## stdout: true
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| 261 |
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| 262 | #### [[ '(' ]] is treated as literal
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| 263 | [[ '(' ]]
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| 264 | echo status=$?
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| 265 | ## stdout: status=0
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| 266 |
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| 267 | #### [[ '(' foo ]] is syntax error
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| 268 | [[ '(' foo ]]
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| 269 | echo status=$?
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| 270 | ## status: 2
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| 271 | ## OK mksh status: 1
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| 272 |
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| 273 | #### empty ! is treated as literal
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| 274 | [[ '!' ]]
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| 275 | echo status=$?
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| 276 | ## stdout: status=0
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| 277 |
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| 278 | #### [[ -z ]] is syntax error
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| 279 | [[ -z ]]
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| 280 | echo status=$?
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| 281 | ## status: 2
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| 282 | ## OK mksh status: 1
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| 283 |
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| 284 | #### [[ -z '>' ]]
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| 285 | [[ -z '>' ]] || echo false # -z is operator
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| 286 | ## stdout: false
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| 287 |
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| 288 | #### [[ -z '>' a ]] is syntax error
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| 289 | [[ -z '>' -- ]]
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| 290 | echo status=$?
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| 291 | ## status: 2
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| 292 | ## OK mksh status: 1
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| 293 |
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| 294 | #### test whether ']]' is empty
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| 295 | [[ ']]' ]]
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| 296 | echo status=$?
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| 297 | ## status: 0
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| 298 |
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| 299 | #### [[ ]] is syntax error
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| 300 | [[ ]]
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| 301 | echo status=$?
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| 302 | ## stdout-json: ""
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| 303 | ## status: 2
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| 304 | ## OK mksh status: 1
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| 305 |
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| 306 | #### [[ && ]] is syntax error
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| 307 | [[ && ]]
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| 308 | echo status=$?
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| 309 | ## stdout-json: ""
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| 310 | ## status: 2
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| 311 | ## OK mksh status: 1
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| 312 |
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| 313 | #### [[ a 3< b ]] doesn't work (bug regression)
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| 314 | [[ a 3< b ]]
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| 315 | echo status=$?
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| 316 | [[ a 3> b ]]
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| 317 | echo status=$?
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| 318 | ## status: 2
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| 319 |
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| 320 | # Hm these shells use the same redirect trick that OSH used to!
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| 321 |
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| 322 | ## BUG mksh/zsh status: 0
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| 323 | ## BUG mksh/zsh STDOUT:
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| 324 | status=0
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| 325 | status=1
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| 326 | ## END
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| 327 |
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| 328 | #### tilde expansion in [[
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| 329 | HOME=/home/bob
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| 330 | [[ ~ == /home/bob ]]
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| 331 | echo status=$?
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| 332 |
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| 333 | [[ ~ == */bob ]]
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| 334 | echo status=$?
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| 335 |
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| 336 | [[ ~ == */z ]]
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| 337 | echo status=$?
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| 338 |
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| 339 | ## STDOUT:
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| 340 | status=0
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| 341 | status=0
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| 342 | status=1
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| 343 | ## END
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| 344 |
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| 345 | #### more tilde expansion
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| 346 | [[ ~ ]]
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| 347 | echo status=$?
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| 348 | HOME=''
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| 349 | [[ ~ ]]
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| 350 | echo status=$?
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| 351 | [[ -n ~ ]]
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| 352 | echo unary=$?
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| 353 |
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| 354 | [[ ~ == ~ ]]
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| 355 | echo status=$?
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| 356 |
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| 357 | [[ $HOME == ~ ]]
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| 358 | echo fnmatch=$?
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| 359 | [[ ~ == $HOME ]]
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| 360 | echo fnmatch=$?
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| 361 |
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| 362 | ## STDOUT:
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| 363 | status=0
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| 364 | status=1
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| 365 | unary=1
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| 366 | status=0
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| 367 | fnmatch=0
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| 368 | fnmatch=0
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| 369 | ## END
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| 370 |
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| 371 | #### tilde expansion with =~ (confusing)
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| 372 | case $SH in (mksh) exit ;; esac
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| 373 |
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| 374 | HOME=foo
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| 375 | [[ ~ =~ $HOME ]]
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| 376 | echo regex=$?
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| 377 | [[ $HOME =~ ~ ]]
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| 378 | echo regex=$?
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| 379 |
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| 380 | HOME='^a$' # looks like regex
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| 381 | [[ ~ =~ $HOME ]]
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| 382 | echo regex=$?
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| 383 | [[ $HOME =~ ~ ]]
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| 384 | echo regex=$?
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| 385 |
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| 386 | ## STDOUT:
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| 387 | regex=0
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| 388 | regex=0
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| 389 | regex=1
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| 390 | regex=0
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| 391 | ## END
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| 392 | ## OK zsh STDOUT:
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| 393 | regex=0
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| 394 | regex=0
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| 395 | regex=1
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| 396 | regex=1
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| 397 | ## END
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| 398 | ## N-I mksh stdout-json: ""
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| 399 |
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| 400 | #### [[ ]] with redirect
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| 401 | [[ $(stdout_stderr.py) == STDOUT ]] 2>$TMP/x.txt
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| 402 | echo $?
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| 403 | echo --
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| 404 | cat $TMP/x.txt
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| 405 | ## STDOUT:
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| 406 | 0
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| 407 | --
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| 408 | STDERR
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| 409 | ## END
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| 410 |
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| 411 | #### special chars
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| 412 | [[ ^ == ^ ]]
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| 413 | echo caret $?
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| 414 | [[ '!' == ! ]]
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| 415 | echo bang $?
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| 416 | ## STDOUT:
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| 417 | caret 0
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| 418 | bang 0
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| 419 | ## END
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| 420 |
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| 421 |
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| 422 | #### \(\) in pattern (regression)
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| 423 | if [[ 'foo()' == *\(\) ]]; then echo match1; fi
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| 424 | if [[ 'foo()' == *'()' ]]; then echo match2; fi
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| 425 | if [[ 'foo()' == '*()' ]]; then echo match3; fi
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| 426 |
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| 427 | shopt -s extglob
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| 428 |
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| 429 | if [[ 'foo()' == *\(\) ]]; then echo match1; fi
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| 430 | if [[ 'foo()' == *'()' ]]; then echo match2; fi
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| 431 | if [[ 'foo()' == '*()' ]]; then echo match3; fi
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| 432 |
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| 433 | ## STDOUT:
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| 434 | match1
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| 435 | match2
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| 436 | match1
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| 437 | match2
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| 438 | ## END
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| 439 |
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| 440 | #### negative numbers - zero, decimal, octal, hex, base N
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| 441 |
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| 442 | [[ -0 -eq 0 ]]; echo zero=$?
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| 443 |
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| 444 | [[ -42 -eq -42 ]]; echo decimal=$?
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| 445 |
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| 446 | # note: mksh doesn't do octal conversion
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| 447 | [[ -0123 -eq -83 ]]; echo octal=$?
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| 448 |
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| 449 | [[ -0xff -eq -255 ]]; echo hex=$?
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| 450 |
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| 451 | [[ -64#a -eq -10 ]]; echo baseN=$?
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| 452 |
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| 453 | ## STDOUT:
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| 454 | zero=0
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| 455 | decimal=0
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| 456 | octal=0
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| 457 | hex=0
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| 458 | baseN=0
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| 459 | ## END
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| 460 |
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| 461 | ## BUG mksh STDOUT:
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| 462 | zero=0
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| 463 | decimal=0
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| 464 | octal=1
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| 465 | hex=2
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| 466 | baseN=2
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| 467 | ## END
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