1 files changed, 46 insertions, 0 deletions
diff --git a/src/internal/godebugs/godebugs_test.go b/src/internal/godebugs/godebugs_test.go
new file mode 100644
index 0000000..a1cb8d4
--- /dev/null
+++ b/src/internal/godebugs/godebugs_test.go
@@ -0,0 +1,46 @@
+// 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"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+func TestAll(t *testing.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)
+
+	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)
+		}
+	}
+}