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// Copyright 2011 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 template
import (
"bytes"
"testing"
"text/template"
"text/template/parse"
)
func TestClone(t *testing.T) {
tests := []struct {
input, want, wantClone string
}{
{
`Hello, {{if true}}{{"<World>"}}{{end}}!`,
"Hello, <World>!",
"Hello, <World>!",
},
{
`Hello, {{if false}}{{.X}}{{else}}{{"<World>"}}{{end}}!`,
"Hello, <World>!",
"Hello, <World>!",
},
{
`Hello, {{with "<World>"}}{{.}}{{end}}!`,
"Hello, <World>!",
"Hello, <World>!",
},
{
`{{range .}}<p>{{.}}</p>{{end}}`,
"<p>foo</p><p><bar></p><p>baz</p>",
"<p>foo</p><p><bar></p><p>baz</p>",
},
{
`Hello, {{"<World>" | html}}!`,
"Hello, <World>!",
"Hello, <World>!",
},
{
`Hello{{if 1}}, World{{else}}{{template "d"}}{{end}}!`,
"Hello, World!",
"Hello, World!",
},
}
for _, test := range tests {
s := template.Must(template.New("s").Parse(test.input))
d := template.New("d")
d.Tree = &parse.Tree{Name: d.Name(), Root: cloneList(s.Root)}
if want, got := s.Root.String(), d.Root.String(); want != got {
t.Errorf("want %q, got %q", want, got)
}
err := escape(d)
if err != nil {
t.Errorf("%q: failed to escape: %s", test.input, err)
continue
}
if want, got := "s", s.Name(); want != got {
t.Errorf("want %q, got %q", want, got)
continue
}
if want, got := "d", d.Name(); want != got {
t.Errorf("want %q, got %q", want, got)
continue
}
data := []string{"foo", "<bar>", "baz"}
// Make sure escaping d did not affect s.
var b bytes.Buffer
s.Execute(&b, data)
if got := b.String(); got != test.want {
t.Errorf("%q: want %q, got %q", test.input, test.want, got)
continue
}
b.Reset()
d.Execute(&b, data)
if got := b.String(); got != test.wantClone {
t.Errorf("%q: want %q, got %q", test.input, test.wantClone, got)
}
}
}
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