mirror of
https://github.com/fish-shell/fish-shell
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65 lines
2 KiB
Fish
65 lines
2 KiB
Fish
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# RUN: %fish %s
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# This tests various corner cases involving command substitution. Most
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# importantly the limits on the amount of data we'll substitute.
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set fish_read_limit 512
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function subme
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set -l x (string repeat -n $argv x)
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echo $x
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end
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# Command sub just under the limit should succeed
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set a (subme 511)
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set --show a
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#CHECK: $a: not set in local scope
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#CHECK: $a: set in global scope, unexported, with 1 elements
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#CHECK: $a[1]: length=511 value=|{{x{510}x}}|
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#CHECK: $a: not set in universal scope
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# Command sub at the limit should fail
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set b (string repeat -n 512 x)
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set saved_status $status
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test $saved_status -eq 122
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or echo expected status 122, saw $saved_status >&2
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set --show b
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#CHECK: $b: not set in local scope
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#CHECK: $b: not set in global scope
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#CHECK: $b: not set in universal scope
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#CHECKERR: {{.*}}: Too much data emitted by command substitution so it was discarded
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#CHECKERR: set b (string repeat -n 512 x)
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#CHECKERR: ^
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# Command sub over the limit should fail
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set c (subme 513)
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set --show c
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#CHECK: $c: not set in local scope
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#CHECK: $c: set in global scope, unexported, with 1 elements
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#CHECK: $c[1]: length=0 value=||
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#CHECK: $c: not set in universal scope
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#CHECKERR: {{.*}}: Too much data emitted by command substitution so it was discarded
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#CHECKERR: set -l x (string repeat -n $argv x)
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#CHECKERR: ^
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#CHECKERR: in function 'subme' with arguments '513'
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#CHECKERR: called on line {{.*}}
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#CHECKERR: in command substitution
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#CHECKERR: called on line {{.*}}
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# Make sure output from builtins outside of command substitution is not affected
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string repeat --max 513 a
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#CHECK: {{a{512}a}}
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# Same builtin in a command substitution is affected
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echo this will fail (string repeat --max 513 b) to output anything
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set saved_status $status
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test $saved_status -eq 122
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or echo expected status 122, saw $saved_status >&2
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#CHECKERR: {{.*}}: Too much data emitted by command substitution so it was discarded
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#CHECKERR: echo this will fail (string repeat --max 513 b) to output anything
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#CHECKERR: ^
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