| // Copyright 2023 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| // TestFiles checks that every file in this package has a build constraint on Go 1.21. |
| // The QUIC implementation depends on crypto/tls features added in Go 1.21, |
| // so there's no point in trying to build on anything older. |
| // Drop this test when the x/net go.mod depends on 1.21 or newer. |
| func TestFiles(t *testing.T) { |
| names, err := f.Readdirnames(-1) |
| for _, name := range names { |
| if !strings.HasSuffix(name, ".go") { |
| b, err := os.ReadFile(name) |
| // Check for copyright header while we're in here. |
| if !bytes.Contains(b, []byte("The Go Authors.")) { |
| t.Errorf("%v: missing copyright", name) |
| // doc.go doesn't need a build constraint. |
| if !bytes.Contains(b, []byte("//go:build go1.21")) { |
| t.Errorf("%v: missing constraint on go1.21", name) |