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// Copyright 2019 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 snippet
import (
"testing"
)
func TestSnippetBuilder(t *testing.T) {
expect := func(expected string, fn func(*Builder)) {
t.Helper()
var b Builder
fn(&b)
if got := b.String(); got != expected {
t.Errorf("got %q, expected %q", got, expected)
}
}
expect("", func(b *Builder) {})
expect(`hi { \} \$ | " , / \\`, func(b *Builder) {
b.WriteText(`hi { } $ | " , / \`)
})
expect("${1:}", func(b *Builder) {
b.WritePlaceholder(nil)
})
expect("hi ${1:there}", func(b *Builder) {
b.WriteText("hi ")
b.WritePlaceholder(func(b *Builder) {
b.WriteText("there")
})
})
expect(`${1:id=${2:{your id\}}}`, func(b *Builder) {
b.WritePlaceholder(func(b *Builder) {
b.WriteText("id=")
b.WritePlaceholder(func(b *Builder) {
b.WriteText("{your id}")
})
})
})
expect(`${1|one,{ \} \$ \| " \, / \\,three|}`, func(b *Builder) {
b.WriteChoice([]string{"one", `{ } $ | " , / \`, "three"})
})
expect("$0 hello", func(b *Builder) {
b.WriteFinalTabstop()
b.WriteText(" hello")
})
expect(`prepended \$5 ${1:} hello`, func(b *Builder) {
b.WritePlaceholder(nil)
b.WriteText(" hello")
b.PrependText("prepended $5 ")
})
}
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