mirror of
https://github.com/gohugoio/hugo.git
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166 lines
4.6 KiB
Go
166 lines
4.6 KiB
Go
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build go1.13
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package template_test
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import (
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"bytes"
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"strings"
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"testing"
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. "github.com/gohugoio/hugo/tpl/internal/go_templates/htmltemplate"
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)
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func TestTemplateClone(t *testing.T) {
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// https://golang.org/issue/12996
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orig := New("name")
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clone, err := orig.Clone()
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if err != nil {
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t.Fatal(err)
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}
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if len(clone.Templates()) != len(orig.Templates()) {
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t.Fatalf("Invalid length of t.Clone().Templates()")
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}
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const want = "stuff"
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parsed := Must(clone.Parse(want))
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var buf bytes.Buffer
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err = parsed.Execute(&buf, nil)
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if err != nil {
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t.Fatal(err)
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}
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if got := buf.String(); got != want {
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t.Fatalf("got %q; want %q", got, want)
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}
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}
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func TestRedefineNonEmptyAfterExecution(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `foo`)
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c.mustExecute(c.root, nil, "foo")
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c.mustNotParse(c.root, `bar`)
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}
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func TestRedefineEmptyAfterExecution(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, ``)
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c.mustExecute(c.root, nil, "")
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c.mustNotParse(c.root, `foo`)
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c.mustExecute(c.root, nil, "")
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}
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func TestRedefineAfterNonExecution(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `{{if .}}<{{template "X"}}>{{end}}{{define "X"}}foo{{end}}`)
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c.mustExecute(c.root, 0, "")
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c.mustNotParse(c.root, `{{define "X"}}bar{{end}}`)
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c.mustExecute(c.root, 1, "<foo>")
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}
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func TestRedefineAfterNamedExecution(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `<{{template "X" .}}>{{define "X"}}foo{{end}}`)
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c.mustExecute(c.root, nil, "<foo>")
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c.mustNotParse(c.root, `{{define "X"}}bar{{end}}`)
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c.mustExecute(c.root, nil, "<foo>")
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}
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func TestRedefineNestedByNameAfterExecution(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `{{define "X"}}foo{{end}}`)
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c.mustExecute(c.lookup("X"), nil, "foo")
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c.mustNotParse(c.root, `{{define "X"}}bar{{end}}`)
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c.mustExecute(c.lookup("X"), nil, "foo")
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}
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func TestRedefineNestedByTemplateAfterExecution(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `{{define "X"}}foo{{end}}`)
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c.mustExecute(c.lookup("X"), nil, "foo")
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c.mustNotParse(c.lookup("X"), `bar`)
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c.mustExecute(c.lookup("X"), nil, "foo")
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}
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func TestRedefineSafety(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `<html><a href="{{template "X"}}">{{define "X"}}{{end}}`)
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c.mustExecute(c.root, nil, `<html><a href="">`)
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// Note: Every version of Go prior to Go 1.8 accepted the redefinition of "X"
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// on the next line, but luckily kept it from being used in the outer template.
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// Now we reject it, which makes clearer that we're not going to use it.
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c.mustNotParse(c.root, `{{define "X"}}" bar="baz{{end}}`)
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c.mustExecute(c.root, nil, `<html><a href="">`)
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}
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func TestRedefineTopUse(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `{{template "X"}}{{.}}{{define "X"}}{{end}}`)
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c.mustExecute(c.root, 42, `42`)
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c.mustNotParse(c.root, `{{define "X"}}<script>{{end}}`)
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c.mustExecute(c.root, 42, `42`)
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}
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func TestRedefineOtherParsers(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, ``)
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c.mustExecute(c.root, nil, ``)
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if _, err := c.root.ParseFiles("no.template"); err == nil || !strings.Contains(err.Error(), "Execute") {
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t.Errorf("ParseFiles: %v\nwanted error about already having Executed", err)
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}
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if _, err := c.root.ParseGlob("*.no.template"); err == nil || !strings.Contains(err.Error(), "Execute") {
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t.Errorf("ParseGlob: %v\nwanted error about already having Executed", err)
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}
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if _, err := c.root.AddParseTree("t1", c.root.Tree); err == nil || !strings.Contains(err.Error(), "Execute") {
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t.Errorf("AddParseTree: %v\nwanted error about already having Executed", err)
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}
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}
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func TestNumbers(t *testing.T) {
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c := newTestCase(t)
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c.mustParse(c.root, `{{print 1_2.3_4}} {{print 0x0_1.e_0p+02}}`)
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c.mustExecute(c.root, nil, "12.34 7.5")
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}
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type testCase struct {
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t *testing.T
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root *Template
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}
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func newTestCase(t *testing.T) *testCase {
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return &testCase{
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t: t,
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root: New("root"),
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}
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}
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func (c *testCase) lookup(name string) *Template {
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return c.root.Lookup(name)
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}
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func (c *testCase) mustParse(t *Template, text string) {
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_, err := t.Parse(text)
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if err != nil {
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c.t.Fatalf("parse: %v", err)
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}
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}
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func (c *testCase) mustNotParse(t *Template, text string) {
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_, err := t.Parse(text)
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if err == nil {
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c.t.Fatalf("parse: unexpected success")
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}
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}
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func (c *testCase) mustExecute(t *Template, val interface{}, want string) {
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var buf bytes.Buffer
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err := t.Execute(&buf, val)
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if err != nil {
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c.t.Fatalf("execute: %v", err)
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}
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if buf.String() != want {
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c.t.Fatalf("template output:\n%s\nwant:\n%s", buf.String(), want)
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}
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}
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