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[spec/builtin-trap] Add test case for ignored traps in subshells #2468

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[spec/builtin-trap] Add test case for ignored traps in subshells #2468

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19 changes: 19 additions & 0 deletions spec/builtin-trap.test.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,25 @@ trap | cat
bye
## END

#### ignored signals are active inside subshells
trap '' USR1
subshell_result=$(
trap '' USR2
trap - USR2
trap
)

# NOT a subshell
trap > traps.txt
shell_result=$(cat traps.txt)

if test "$shell_result" = "$subshell_result"; then
echo ok
fi

## STDOUT:
ok
## END

#### trap accepts/ignores --
trap -- 'echo hi' EXIT
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