test: use IO#popen instead of Kernel#open #4369
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open("|command") spawns command and create pipes for
processing pipeline.
This feature of Kernel#open is deprecated, replace it with
IO#popen.
It fixes the following warning:
warning: Calling Kernel#open with a leading '|' is deprecated and will
be removed in Ruby 4.0; use IO.popen instead
Signed-off-by: Kentaro Hayashi <[email protected]>
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Watson1978
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backport to v1.16
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Dec 9, 2025
Backport #4369 **Which issue(s) this PR fixes**: N/A **What this PR does / why we need it**: open("|command") spawns command and create pipes for processing pipeline. This feature of Kernel#open is deprecated, replace it with IO#popen. It fixes the following warning: warning: Calling Kernel#open with a leading '|' is deprecated and will be removed in Ruby 4.0; use IO.popen instead **Docs Changes**: N/A **Release Note**: N/A Signed-off-by: Kentaro Hayashi <[email protected]> Co-authored-by: Kentaro Hayashi <[email protected]>
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Which issue(s) this PR fixes:
N/A
What this PR does / why we need it:
open("|command") spawns command and create pipes for processing pipeline.
This feature of Kernel#open is deprecated, replace it with IO#popen.
It fixes the following warning:
warning: Calling Kernel#open with a leading '|' is deprecated and will
be removed in Ruby 4.0; use IO.popen instead
Docs Changes:
N/A
Release Note:
N/A