mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-07 20:30:36 -05:00
282 lines
8.1 KiB
Go
282 lines
8.1 KiB
Go
// 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.
|
|
|
|
//go:build !windows
|
|
// +build !windows
|
|
|
|
package template
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"strings"
|
|
"sync"
|
|
"testing"
|
|
|
|
"github.com/gohugoio/hugo/tpl/internal/go_templates/texttemplate/parse"
|
|
)
|
|
|
|
func TestAddParseTreeHTML(t *testing.T) {
|
|
root := Must(New("root").Parse(`{{define "a"}} {{.}} {{template "b"}} {{.}} "></a>{{end}}`))
|
|
tree, err := parse.Parse("t", `{{define "b"}}<a href="{{end}}`, "", "", nil, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
added := Must(root.AddParseTree("b", tree["b"]))
|
|
b := new(strings.Builder)
|
|
err = added.ExecuteTemplate(b, "a", "1>0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := b.String(), ` 1>0 <a href=" 1%3e0 "></a>`; got != want {
|
|
t.Errorf("got %q want %q", got, want)
|
|
}
|
|
}
|
|
|
|
func TestClone(t *testing.T) {
|
|
// The {{.}} will be executed with data "<i>*/" in different contexts.
|
|
// In the t0 template, it will be in a text context.
|
|
// In the t1 template, it will be in a URL context.
|
|
// In the t2 template, it will be in a JavaScript context.
|
|
// In the t3 template, it will be in a CSS context.
|
|
const tmpl = `{{define "a"}}{{template "lhs"}}{{.}}{{template "rhs"}}{{end}}`
|
|
b := new(strings.Builder)
|
|
|
|
// Create an incomplete template t0.
|
|
t0 := Must(New("t0").Parse(tmpl))
|
|
|
|
// Clone t0 as t1.
|
|
t1 := Must(t0.Clone())
|
|
Must(t1.Parse(`{{define "lhs"}} <a href=" {{end}}`))
|
|
Must(t1.Parse(`{{define "rhs"}} "></a> {{end}}`))
|
|
|
|
// Execute t1.
|
|
b.Reset()
|
|
if err := t1.ExecuteTemplate(b, "a", "<i>*/"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := b.String(), ` <a href=" %3ci%3e*/ "></a> `; got != want {
|
|
t.Errorf("t1: got %q want %q", got, want)
|
|
}
|
|
|
|
// Clone t0 as t2.
|
|
t2 := Must(t0.Clone())
|
|
Must(t2.Parse(`{{define "lhs"}} <p onclick="javascript: {{end}}`))
|
|
Must(t2.Parse(`{{define "rhs"}} "></p> {{end}}`))
|
|
|
|
// Execute t2.
|
|
b.Reset()
|
|
if err := t2.ExecuteTemplate(b, "a", "<i>*/"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := b.String(), ` <p onclick="javascript: "\u003ci\u003e*/" "></p> `; got != want {
|
|
t.Errorf("t2: got %q want %q", got, want)
|
|
}
|
|
|
|
// Clone t0 as t3, but do not execute t3 yet.
|
|
t3 := Must(t0.Clone())
|
|
Must(t3.Parse(`{{define "lhs"}} <style> {{end}}`))
|
|
Must(t3.Parse(`{{define "rhs"}} </style> {{end}}`))
|
|
|
|
// Complete t0.
|
|
Must(t0.Parse(`{{define "lhs"}} ( {{end}}`))
|
|
Must(t0.Parse(`{{define "rhs"}} ) {{end}}`))
|
|
|
|
// Clone t0 as t4. Redefining the "lhs" template should not fail.
|
|
t4 := Must(t0.Clone())
|
|
if _, err := t4.Parse(`{{define "lhs"}} OK {{end}}`); err != nil {
|
|
t.Errorf(`redefine "lhs": got err %v want nil`, err)
|
|
}
|
|
// Cloning t1 should fail as it has been executed.
|
|
if _, err := t1.Clone(); err == nil {
|
|
t.Error("cloning t1: got nil err want non-nil")
|
|
}
|
|
// Redefining the "lhs" template in t1 should fail as it has been executed.
|
|
if _, err := t1.Parse(`{{define "lhs"}} OK {{end}}`); err == nil {
|
|
t.Error(`redefine "lhs": got nil err want non-nil`)
|
|
}
|
|
|
|
// Execute t0.
|
|
b.Reset()
|
|
if err := t0.ExecuteTemplate(b, "a", "<i>*/"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := b.String(), ` ( <i>*/ ) `; got != want {
|
|
t.Errorf("t0: got %q want %q", got, want)
|
|
}
|
|
|
|
// Clone t0. This should fail, as t0 has already executed.
|
|
if _, err := t0.Clone(); err == nil {
|
|
t.Error(`t0.Clone(): got nil err want non-nil`)
|
|
}
|
|
|
|
// Similarly, cloning sub-templates should fail.
|
|
if _, err := t0.Lookup("a").Clone(); err == nil {
|
|
t.Error(`t0.Lookup("a").Clone(): got nil err want non-nil`)
|
|
}
|
|
if _, err := t0.Lookup("lhs").Clone(); err == nil {
|
|
t.Error(`t0.Lookup("lhs").Clone(): got nil err want non-nil`)
|
|
}
|
|
|
|
// Execute t3.
|
|
b.Reset()
|
|
if err := t3.ExecuteTemplate(b, "a", "<i>*/"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := b.String(), ` <style> ZgotmplZ </style> `; got != want {
|
|
t.Errorf("t3: got %q want %q", got, want)
|
|
}
|
|
}
|
|
|
|
func TestTemplates(t *testing.T) {
|
|
names := []string{"t0", "a", "lhs", "rhs"}
|
|
// Some template definitions borrowed from TestClone.
|
|
const tmpl = `
|
|
{{define "a"}}{{template "lhs"}}{{.}}{{template "rhs"}}{{end}}
|
|
{{define "lhs"}} <a href=" {{end}}
|
|
{{define "rhs"}} "></a> {{end}}`
|
|
t0 := Must(New("t0").Parse(tmpl))
|
|
templates := t0.Templates()
|
|
if len(templates) != len(names) {
|
|
t.Errorf("expected %d templates; got %d", len(names), len(templates))
|
|
}
|
|
for _, name := range names {
|
|
found := false
|
|
for _, tmpl := range templates {
|
|
if name == tmpl.text.Name() {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
t.Error("could not find template", name)
|
|
}
|
|
}
|
|
}
|
|
|
|
// This used to crash; https://golang.org/issue/3281
|
|
func TestCloneCrash(t *testing.T) {
|
|
t1 := New("all")
|
|
Must(t1.New("t1").Parse(`{{define "foo"}}foo{{end}}`))
|
|
t1.Clone()
|
|
}
|
|
|
|
// Ensure that this guarantee from the docs is upheld:
|
|
// "Further calls to Parse in the copy will add templates
|
|
// to the copy but not to the original."
|
|
func TestCloneThenParse(t *testing.T) {
|
|
t0 := Must(New("t0").Parse(`{{define "a"}}{{template "embedded"}}{{end}}`))
|
|
t1 := Must(t0.Clone())
|
|
Must(t1.Parse(`{{define "embedded"}}t1{{end}}`))
|
|
if len(t0.Templates())+1 != len(t1.Templates()) {
|
|
t.Error("adding a template to a clone added it to the original")
|
|
}
|
|
// double check that the embedded template isn't available in the original
|
|
err := t0.ExecuteTemplate(io.Discard, "a", nil)
|
|
if err == nil {
|
|
t.Error("expected 'no such template' error")
|
|
}
|
|
}
|
|
|
|
// https://golang.org/issue/5980
|
|
func TestFuncMapWorksAfterClone(t *testing.T) {
|
|
funcs := FuncMap{"customFunc": func() (string, error) {
|
|
return "", errors.New("issue5980")
|
|
}}
|
|
|
|
// get the expected error output (no clone)
|
|
uncloned := Must(New("").Funcs(funcs).Parse("{{customFunc}}"))
|
|
wantErr := uncloned.Execute(io.Discard, nil)
|
|
|
|
// toClone must be the same as uncloned. It has to be recreated from scratch,
|
|
// since cloning cannot occur after execution.
|
|
toClone := Must(New("").Funcs(funcs).Parse("{{customFunc}}"))
|
|
cloned := Must(toClone.Clone())
|
|
gotErr := cloned.Execute(io.Discard, nil)
|
|
|
|
if wantErr.Error() != gotErr.Error() {
|
|
t.Errorf("clone error message mismatch want %q got %q", wantErr, gotErr)
|
|
}
|
|
}
|
|
|
|
// https://golang.org/issue/16101
|
|
func TestTemplateCloneExecuteRace(t *testing.T) {
|
|
const (
|
|
input = `<title>{{block "a" .}}a{{end}}</title><body>{{block "b" .}}b{{end}}<body>`
|
|
overlay = `{{define "b"}}A{{end}}`
|
|
)
|
|
outer := Must(New("outer").Parse(input))
|
|
tmpl := Must(Must(outer.Clone()).Parse(overlay))
|
|
|
|
var wg sync.WaitGroup
|
|
for i := 0; i < 10; i++ {
|
|
wg.Add(1)
|
|
go func() {
|
|
defer wg.Done()
|
|
for i := 0; i < 100; i++ {
|
|
if err := tmpl.Execute(io.Discard, "data"); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
wg.Wait()
|
|
}
|
|
|
|
func TestTemplateCloneLookup(t *testing.T) {
|
|
// Template.escape makes an assumption that the template associated
|
|
// with t.Name() is t. Check that this holds.
|
|
tmpl := Must(New("x").Parse("a"))
|
|
tmpl = Must(tmpl.Clone())
|
|
if tmpl.Lookup(tmpl.Name()) != tmpl {
|
|
t.Error("after Clone, tmpl.Lookup(tmpl.Name()) != tmpl")
|
|
}
|
|
}
|
|
|
|
func TestCloneGrowth(t *testing.T) {
|
|
tmpl := Must(New("root").Parse(`<title>{{block "B". }}Arg{{end}}</title>`))
|
|
tmpl = Must(tmpl.Clone())
|
|
Must(tmpl.Parse(`{{define "B"}}Text{{end}}`))
|
|
for i := 0; i < 10; i++ {
|
|
tmpl.Execute(io.Discard, nil)
|
|
}
|
|
if len(tmpl.DefinedTemplates()) > 200 {
|
|
t.Fatalf("too many templates: %v", len(tmpl.DefinedTemplates()))
|
|
}
|
|
}
|
|
|
|
// https://golang.org/issue/17735
|
|
func TestCloneRedefinedName(t *testing.T) {
|
|
const base = `
|
|
{{ define "a" -}}<title>{{ template "b" . -}}</title>{{ end -}}
|
|
{{ define "b" }}{{ end -}}
|
|
`
|
|
const page = `{{ template "a" . }}`
|
|
|
|
t1 := Must(New("a").Parse(base))
|
|
|
|
for i := 0; i < 2; i++ {
|
|
t2 := Must(t1.Clone())
|
|
t2 = Must(t2.New(fmt.Sprintf("%d", i)).Parse(page))
|
|
err := t2.Execute(io.Discard, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Issue 24791.
|
|
func TestClonePipe(t *testing.T) {
|
|
a := Must(New("a").Parse(`{{define "a"}}{{range $v := .A}}{{$v}}{{end}}{{end}}`))
|
|
data := struct{ A []string }{A: []string{"hi"}}
|
|
b := Must(a.Clone())
|
|
var buf strings.Builder
|
|
if err := b.Execute(&buf, &data); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := buf.String(), "hi"; got != want {
|
|
t.Errorf("got %q want %q", got, want)
|
|
}
|
|
}
|