got := LongDesc(test.in)
			if got != test.out {
				t.Errorf("expected(%d):\n%s\n=====\ngot(%d):\n%s\n", len(test.out), test.out, len(got), got)
			}
		})
	}
}

func TestExamples(t *testing.T) {
	tests := []struct {
		desc string
		in   string
		out  string
	}{
		{
			desc: "Empty input produces empty output",
			in:   "",
			out:  "",
		},
		{

import (
	"bytes"
	"fmt"
	"go/ast"
	"go/doc"
	"go/format"
	"go/parser"
	"go/token"
	"internal/diff"
	"internal/txtar"
	"path/filepath"
	"reflect"
	"strings"
	"testing"
)

func TestExamples(t *testing.T) {
	dir := filepath.Join("testdata", "examples")
	filenames, err := filepath.Glob(filepath.Join(dir, "*.go"))
	if err != nil {
		t.Fatal(err)
	}
	for _, filename := range filenames {

	DefPredeclaredTestFuncs()
	testDirFiles(t, "../../internal/types/testdata/check", false)
}
func TestSpec(t *testing.T)      { testDirFiles(t, "../../internal/types/testdata/spec", false) }
func TestExamples(t *testing.T)  { testDirFiles(t, "../../internal/types/testdata/examples", false) }
func TestFixedbugs(t *testing.T) { testDirFiles(t, "../../internal/types/testdata/fixedbugs", false) }

}
func TestSpec(t *testing.T) { testDirFiles(t, "../../../../internal/types/testdata/spec", 20, false) } // TODO(gri) narrow column tolerance
func TestExamples(t *testing.T) {
	testDirFiles(t, "../../../../internal/types/testdata/examples", 125, false)
} // TODO(gri) narrow column tolerance
func TestFixedbugs(t *testing.T) {