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// Copyright 2018 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 main_test
import (
"bytes"
"go/format"
diffpkg "internal/diff"
"os"
"testing"
"cmd/go/internal/help"
"cmd/go/internal/modload"
)
func TestDocsUpToDate(t *testing.T) {
t.Parallel()
if !modload.Enabled() {
t.Skipf("help.Help in GOPATH mode is configured by main.main")
}
buf := new(bytes.Buffer)
// Match the command in mkalldocs.sh that generates alldocs.go.
help.Help(buf, []string{"documentation"})
internal := buf.Bytes()
internal, err := format.Source(internal)
if err != nil {
t.Fatalf("gofmt docs: %v", err)
}
alldocs, err := os.ReadFile("alldocs.go")
if err != nil {
t.Fatalf("error reading alldocs.go: %v", err)
}
if !bytes.Equal(internal, alldocs) {
t.Errorf("alldocs.go is not up to date; run mkalldocs.sh to regenerate it\n%s",
diffpkg.Diff("go help documentation | gofmt", internal, "alldocs.go", alldocs))
}
}
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