mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-12-23 09:24:03 +08:00
87 lines
2.7 KiB
Fish
87 lines
2.7 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
|