[release-branch.go1.19] crypto/x509: fix broken tests
Convert TestUnknownAuthorityError to use subtests, avoiding continuing
the test after an unrecoverable failure.
Skip TestIssue51759 on pre-macOS 11 builders, which don't enforce the
behavior we were testing for. Also only enable the test on builders.
Updates #58791
Updates #58812
Fixes #58810
Change-Id: I4e3e5bc371aa139d38052184c8232f8cb564138f
Reviewed-on: https://go-review.googlesource.com/c/go/+/472496
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
(cherry picked from commit
cf3d0655f8ca2de555549f6e8a91bf8654da7e6c)
Reviewed-on: https://go-review.googlesource.com/c/go/+/472617
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>