tree 37a2799a2c7955a770fa5eb73435f031b6a863a3
parent 09ada1af8f54584e46deb0d643713393a9d83b10
author Russ Cox <rsc@golang.org> 1650909970 -0400
committer Gopher Robot <gobot@golang.org> 1650940138 +0000

time: fix quickcheck test to avoid wraparounds

When we call time.Unix(s, ns), the internal representation is
s + 62135596800,  where 62135596800 is the number of
seconds from Jan 1 1 to Jan 1 1970.

If quickcheck generates numbers too close to 2^63,
the addition can wraparound to make a very negative
internal 64-bit value. Wraparounds are not guarded
against, since they would not arise in any reasonable program,
so just avoid testing near them.

Fixes #52409.

Change-Id: Id466c8a34a49055ab26f2687a6b2b657cb64bed6
Reviewed-on: https://go-review.googlesource.com/c/go/+/402177
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>