| // 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. |
| |
| package godebugs_test |
| |
| import ( |
| "internal/godebugs" |
| "internal/testenv" |
| "os" |
| "os/exec" |
| "path/filepath" |
| "regexp" |
| "runtime" |
| "strings" |
| "testing" |
| ) |
| |
| func TestAll(t *testing.T) { |
| testenv.MustHaveGoBuild(t) |
| |
| data, err := os.ReadFile("../../../doc/godebug.md") |
| if err != nil { |
| if os.IsNotExist(err) && (testenv.Builder() == "" || runtime.GOOS != "linux") { |
| t.Skip(err) |
| } |
| t.Fatal(err) |
| } |
| doc := string(data) |
| |
| incs := incNonDefaults(t) |
| |
| last := "" |
| for _, info := range godebugs.All { |
| if info.Name <= last { |
| t.Errorf("All not sorted: %s then %s", last, info.Name) |
| } |
| last = info.Name |
| |
| if info.Package == "" { |
| t.Errorf("Name=%s missing Package", info.Name) |
| } |
| if info.Changed != 0 && info.Old == "" { |
| t.Errorf("Name=%s has Changed, missing Old", info.Name) |
| } |
| if info.Old != "" && info.Changed == 0 { |
| t.Errorf("Name=%s has Old, missing Changed", info.Name) |
| } |
| if !strings.Contains(doc, "`"+info.Name+"`") { |
| t.Errorf("Name=%s not documented in doc/godebug.md", info.Name) |
| } |
| if !info.Opaque && !incs[info.Name] { |
| t.Errorf("Name=%s missing IncNonDefault calls; see 'go doc internal/godebug'", info.Name) |
| } |
| } |
| } |
| |
| var incNonDefaultRE = regexp.MustCompile(`([\pL\p{Nd}_]+)\.IncNonDefault\(\)`) |
| |
| func incNonDefaults(t *testing.T) map[string]bool { |
| // Build list of all files importing internal/godebug. |
| // Tried a more sophisticated search in go list looking for |
| // imports containing "internal/godebug", but that turned |
| // up a bug in go list instead. #66218 |
| out, err := exec.Command("go", "list", "-f={{.Dir}}", "std", "cmd").CombinedOutput() |
| if err != nil { |
| t.Fatalf("go list: %v\n%s", err, out) |
| } |
| |
| seen := map[string]bool{} |
| for _, dir := range strings.Split(string(out), "\n") { |
| if dir == "" { |
| continue |
| } |
| files, err := os.ReadDir(dir) |
| if err != nil { |
| t.Fatal(err) |
| } |
| for _, file := range files { |
| name := file.Name() |
| if !strings.HasSuffix(name, ".go") || strings.HasSuffix(name, "_test.go") { |
| continue |
| } |
| data, err := os.ReadFile(filepath.Join(dir, name)) |
| if err != nil { |
| t.Fatal(err) |
| } |
| for _, m := range incNonDefaultRE.FindAllSubmatch(data, -1) { |
| seen[string(m[1])] = true |
| } |
| } |
| } |
| return seen |
| } |