mirror of
https://github.com/fish-shell/fish-shell
synced 2025-01-16 15:04:05 +00:00
b89249de98
This used to be kept, so e.g. testing it with
fish_read_limit=5 echo (string repeat -n 10 a)
would cause the prompt and such to error as well.
Also there was no good way to get back to the default value
afterwards.
86 lines
2.6 KiB
Fish
86 lines
2.6 KiB
Fish
# RUN: %fish %s
|
|
|
|
# This tests various corner cases involving command substitution.
|
|
|
|
# Test cmdsubs which spawn background processes - see #7559.
|
|
# If this hangs, it means that fish keeps trying to read from the write
|
|
# end of the cmdsub pipe (which has escaped).
|
|
|
|
# FIXME: we need to mark full job control for sleep to get its own pgid;
|
|
# otherwise $last_pid will return fish's pgid! It's always been so!
|
|
status job-control full
|
|
|
|
echo (command sleep 1000000 & ; set -g sleep_pid $last_pid ; echo local)
|
|
# CHECK: local
|
|
echo $sleep_pid
|
|
# CHECK: {{[1-9]\d*}}
|
|
kill $sleep_pid ; echo $status
|
|
# CHECK: 0
|
|
|
|
status job-control interactive
|
|
|
|
# Test limiting the amount of data we'll substitute.
|
|
set fish_read_limit 512
|
|
|
|
function subme
|
|
set -l x (string repeat -n $argv x)
|
|
echo $x
|
|
end
|
|
|
|
# Command sub just under the limit should succeed.
|
|
set a (subme 511)
|
|
set --show a
|
|
#CHECK: $a: set in global scope, unexported, with 1 elements
|
|
#CHECK: $a[1]: |{{x{510}x}}|
|
|
|
|
# Command sub at the limit should fail
|
|
set b (string repeat -n 512 x)
|
|
set saved_status $status
|
|
test $saved_status -eq 122
|
|
or echo expected status 122, saw $saved_status >&2
|
|
set --show b
|
|
|
|
#CHECKERR: {{.*}}: Too much data emitted by command substitution so it was discarded
|
|
#CHECKERR: set b (string repeat -n 512 x)
|
|
#CHECKERR: ^
|
|
|
|
|
|
# Command sub over the limit should fail
|
|
set c (subme 513)
|
|
set --show c
|
|
|
|
#CHECK: $c: set in global scope, unexported, with 1 elements
|
|
#CHECK: $c[1]: ||
|
|
#CHECKERR: {{.*}}: Too much data emitted by command substitution so it was discarded
|
|
#CHECKERR: set -l x (string repeat -n $argv x)
|
|
#CHECKERR: ^
|
|
#CHECKERR: in function 'subme' with arguments '513'
|
|
#CHECKERR: called on line {{.*}}
|
|
#CHECKERR: in command substitution
|
|
#CHECKERR: called on line {{.*}}
|
|
|
|
# Make sure output from builtins outside of command substitution is not affected
|
|
string repeat --max 513 a
|
|
#CHECK: {{a{512}a}}
|
|
|
|
# Same builtin in a command substitution is affected
|
|
echo this will fail (string repeat --max 513 b) to output anything
|
|
set saved_status $status
|
|
test $saved_status -eq 122
|
|
or echo expected status 122, saw $saved_status >&2
|
|
|
|
#CHECKERR: {{.*}}: Too much data emitted by command substitution so it was discarded
|
|
#CHECKERR: echo this will fail (string repeat --max 513 b) to output anything
|
|
#CHECKERR: ^
|
|
|
|
|
|
# Check that it's reset to the default when unset
|
|
begin
|
|
set -l fish_read_limit 5
|
|
echo (string repeat -n 10 a)
|
|
# CHECKERR: {{.*}}cmdsub-limit.fish (line {{\d+}}): Too much data emitted by command substitution so it was discarded
|
|
# CHECKERR: echo (string repeat -n 10 a)
|
|
# CHECKERR: ^
|
|
end
|
|
echo (string repeat -n 10 a)
|
|
# CHECK: aaaaaaaaaa
|