os/signal: use a larger channel buffer for all signals in TestSignal

Now that the runtime can send preemption signals, it is possible that
a channel that asks for all signals can see both SIGURG and SIGHUP
before reading either, in which case one of the signals will be dropped.
We have to use a larger buffer so that the test see the signal it expects.

Fixes #35466

Change-Id: I36271eae0661c421780c72292a5bcbd443ada987
Reviewed-on: https://go-review.googlesource.com/c/go/+/206257
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
1 file changed
tree: 2d0982fe3299a9e43149b4d2b7eddfba621c53fe
  1. .gitattributes
  2. .github/
  3. .gitignore
  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.md
  10. SECURITY.md
  11. api/
  12. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/
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