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// Copyright 2018 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pageparser
import (
"fmt"
"reflect"
"strings"
"testing"
)
type lexerTest struct {
name string
input string
items []Item
}
func nti(tp ItemType, val string) Item {
return Item{tp, 0, []byte(val), false}
}
var (
tstJSON = `{ "a": { "b": "\"Hugo\"}" } }`
tstFrontMatterTOML = nti(TypeFrontMatterTOML, "foo = \"bar\"\n")
tstFrontMatterYAML = nti(TypeFrontMatterYAML, "foo: \"bar\"\n")
tstFrontMatterYAMLCRLF = nti(TypeFrontMatterYAML, "foo: \"bar\"\r\n")
tstFrontMatterJSON = nti(TypeFrontMatterJSON, tstJSON+"\r\n")
tstSomeText = nti(tText, "\nSome text.\n")
tstSummaryDivider = nti(TypeLeadSummaryDivider, "<!--more-->\n")
tstNewline = nti(tText, "\n")
tstORG = `
#+TITLE: T1
#+AUTHOR: A1
#+DESCRIPTION: D1
`
tstFrontMatterORG = nti(TypeFrontMatterORG, tstORG)
)
var crLfReplacer = strings.NewReplacer("\r", "#", "\n", "$")
// TODO(bep) a way to toggle ORG mode vs the rest.
var frontMatterTests = []lexerTest{
{"empty", "", []Item{tstEOF}},
{"Byte order mark", "\ufeff\nSome text.\n", []Item{nti(TypeIgnore, "\ufeff"), tstSomeText, tstEOF}},
{"HTML Document", ` <html> `, []Item{nti(tError, "plain HTML documents not supported")}},
{"HTML Document with shortcode", `<html>{{< sc1 >}}</html>`, []Item{nti(tError, "plain HTML documents not supported")}},
{"No front matter", "\nSome text.\n", []Item{tstSomeText, tstEOF}},
{"YAML front matter", "---\nfoo: \"bar\"\n---\n\nSome text.\n", []Item{tstFrontMatterYAML, tstSomeText, tstEOF}},
{"YAML empty front matter", "---\n---\n\nSome text.\n", []Item{nti(TypeFrontMatterYAML, ""), tstSomeText, tstEOF}},
{"YAML commented out front matter", "<!--\n---\nfoo: \"bar\"\n---\n-->\nSome text.\n", []Item{nti(TypeIgnore, "<!--\n"), tstFrontMatterYAML, nti(TypeIgnore, "-->"), tstSomeText, tstEOF}},
{"YAML commented out front matter, no end", "<!--\n---\nfoo: \"bar\"\n---\nSome text.\n", []Item{nti(TypeIgnore, "<!--\n"), tstFrontMatterYAML, nti(tError, "starting HTML comment with no end")}},
// Note that we keep all bytes as they are, but we need to handle CRLF
{"YAML front matter CRLF", "---\r\nfoo: \"bar\"\r\n---\n\nSome text.\n", []Item{tstFrontMatterYAMLCRLF, tstSomeText, tstEOF}},
{"TOML front matter", "+++\nfoo = \"bar\"\n+++\n\nSome text.\n", []Item{tstFrontMatterTOML, tstSomeText, tstEOF}},
{"JSON front matter", tstJSON + "\r\n\nSome text.\n", []Item{tstFrontMatterJSON, tstSomeText, tstEOF}},
{"ORG front matter", tstORG + "\nSome text.\n", []Item{tstFrontMatterORG, tstSomeText, tstEOF}},
{"Summary divider ORG", tstORG + "\nSome text.\n# more\nSome text.\n", []Item{tstFrontMatterORG, tstSomeText, nti(TypeLeadSummaryDivider, "# more\n"), nti(tText, "Some text.\n"), tstEOF}},
{"Summary divider", "+++\nfoo = \"bar\"\n+++\n\nSome text.\n<!--more-->\nSome text.\n", []Item{tstFrontMatterTOML, tstSomeText, tstSummaryDivider, nti(tText, "Some text.\n"), tstEOF}},
{"Summary divider same line", "+++\nfoo = \"bar\"\n+++\n\nSome text.<!--more-->Some text.\n", []Item{tstFrontMatterTOML, nti(tText, "\nSome text."), nti(TypeLeadSummaryDivider, "<!--more-->"), nti(tText, "Some text.\n"), tstEOF}},
// https://github.com/gohugoio/hugo/issues/5402
{"Summary and shortcode, no space", "+++\nfoo = \"bar\"\n+++\n\nSome text.\n<!--more-->{{< sc1 >}}\nSome text.\n", []Item{tstFrontMatterTOML, tstSomeText, nti(TypeLeadSummaryDivider, "<!--more-->"), tstLeftNoMD, tstSC1, tstRightNoMD, tstSomeText, tstEOF}},
// https://github.com/gohugoio/hugo/issues/5464
{"Summary and shortcode only", "+++\nfoo = \"bar\"\n+++\n{{< sc1 >}}\n<!--more-->\n{{< sc2 >}}", []Item{tstFrontMatterTOML, tstLeftNoMD, tstSC1, tstRightNoMD, tstNewline, tstSummaryDivider, tstLeftNoMD, tstSC2, tstRightNoMD, tstEOF}},
}
func TestFrontMatter(t *testing.T) {
t.Parallel()
for i, test := range frontMatterTests {
items := collect([]byte(test.input), false, lexIntroSection)
if !equal(items, test.items) {
got := crLfReplacer.Replace(fmt.Sprint(items))
expected := crLfReplacer.Replace(fmt.Sprint(test.items))
t.Errorf("[%d] %s: got\n\t%v\nexpected\n\t%v", i, test.name, got, expected)
}
}
}
func collectWithConfig(input []byte, skipFrontMatter bool, stateStart stateFunc, cfg Config) (items []Item) {
l := newPageLexer(input, stateStart, cfg)
l.run()
t := l.newIterator()
for {
item := t.Next()
items = append(items, item)
if item.Type == tEOF || item.Type == tError {
break
}
}
return
}
func collect(input []byte, skipFrontMatter bool, stateStart stateFunc) (items []Item) {
var cfg Config
return collectWithConfig(input, skipFrontMatter, stateStart, cfg)
}
// no positional checking, for now ...
func equal(i1, i2 []Item) bool {
if len(i1) != len(i2) {
return false
}
for k := range i1 {
if i1[k].Type != i2[k].Type {
return false
}
if !reflect.DeepEqual(i1[k].Val, i2[k].Val) {
return false
}
}
return true
}
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