cmd/api: use api/next directory for beta versions

Even though we don't issue beta pre-releases of Go at this time,
it can still be useful to build them without publishing as part
of testing the release infrastructure.

For such versions, use the next directory content so that the
API check doesn't produce a false positive during the earlier
stages of the development cycle, before the next directory is
merged into a combined and eventually frozen api file.

For #29205.

Change-Id: Ib5e962670de1df22f7df64dd237b555953096808
Reviewed-on: https://go-review.googlesource.com/c/go/+/542000
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>

diff --git a/src/cmd/api/main_test.go b/src/cmd/api/main_test.go
index 610ea6331c71b5bd05979d4e14789d8fc128d1d6..94e159e7d8fa2edcdbcc42e4b1fdb671979832ac 100644 (file)
--- a/src/cmd/api/main_test.go
+++ b/src/cmd/api/main_test.go
@@ -106,7 +106,7 @@ func Check(t *testing.T) {
        }
 
        var nextFiles []string
-       if strings.Contains(runtime.Version(), "devel") {
+       if v := runtime.Version(); strings.Contains(v, "devel") || strings.Contains(v, "beta") {
                next, err := filepath.Glob(filepath.Join(testenv.GOROOT(t), "api/next/*.txt"))
                if err != nil {
                        t.Fatal(err)