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Diffstat (limited to 'bin/sh/tests/builtins/read12.0')
| -rw-r--r-- | bin/sh/tests/builtins/read12.0 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/bin/sh/tests/builtins/read12.0 b/bin/sh/tests/builtins/read12.0 new file mode 100644 index 000000000000..4551555adfed --- /dev/null +++ b/bin/sh/tests/builtins/read12.0 @@ -0,0 +1,32 @@ +# Verify that `read -t 3 v` succeeds immediately if input is available +# and times out after 3 s if not + +set -e + +T=$(mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXX) +trap 'rm -rf "$T"' 0 +cd $T +mkfifo fifo1 +# Open fifo1 for writing +{ echo new_value; sleep 10; } >fifo1 & +# Wait for the child to open fifo1 for writing +exec 3<fifo1 + +v=original_value +r=0 +ts=$(date +%s%3N) +read -t 3 v <&3 || r=$? +te=$(date +%s%3N) +[ "$r" -eq 0 ] +[ $((te-ts)) -lt 250 ] +[ "$v" = "new_value" ] + +v=original_value +r=0 +ts=$(date +%s%3N) +read -t 3 v <&3 || r=$? +te=$(date +%s%3N) +kill -TERM "$!" || : +[ "$r" -gt 128 ] && [ "$(kill -l "$r")" = ALRM ] +[ $((te-ts)) -gt 3000 ] && [ $((te-ts)) -lt 3250 ] +[ -z "$v" ] |