zip: include 'but content has correct sum' note in TestVCS

When TestVCS fails because the zip file hash changes, something that
is expected whenever the zip algorithm improves, it's useful to see
a reassuring note that the actual content within the zip file still
has the correct sum.

This enhancement is adapted from cmd/go/internal/modfetch.TestCodeRepo
where I saw it before.

For golang/go#66927.

Change-Id: Ia78bbfaf0513be5f7b6a7d1dd8ee800447ed2c07
Cq-Include-Trybots: luci.golang.try:x_mod-gotip-linux-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/mod/+/772780
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
1 file changed
tree: 96741f99993225335cf1d8a60ab0d3d6116adeb6
  1. gosumcheck/
  2. internal/
  3. modfile/
  4. module/
  5. semver/
  6. sumdb/
  7. zip/
  8. codereview.cfg
  9. go.mod
  10. go.sum
  11. LICENSE
  12. PATENTS
  13. README.md
README.md

mod

PkgGoDev

This repository holds packages for writing tools that work directly with Go module mechanics. That is, it is for direct manipulation of Go modules themselves.

It is NOT about supporting general development tools that need to do things like load packages in module mode. That use case, where modules are incidental rather than the focus, should remain in x/tools, specifically x/tools/go/packages.

The specific case of loading packages should still be done by invoking the go command, which remains the single point of truth for package loading algorithms.