mirror of
https://github.com/gohugoio/hugo.git
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ede452d34e
Accept JSON frontmatter without leading "{\n" so that one line
frontmatters such as `{"param":"paramvalue"}` no longer silently render
empty html.
313 lines
12 KiB
Go
313 lines
12 KiB
Go
// Copyright 2015 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package parser
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// TODO Support Mac Encoding (\r)
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import (
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"bufio"
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"bytes"
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"io"
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"os"
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"path/filepath"
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"strings"
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"testing"
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)
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const (
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contentNoFrontmatter = "a page with no front matter"
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contentWithFrontmatter = "---\ntitle: front matter\n---\nContent with front matter"
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contentHTMLNoDoctype = "<html>\n\t<body>\n\t</body>\n</html>"
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contentHTMLWithDoctype = "<!doctype html><html><body></body></html>"
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contentHTMLWithFrontmatter = "---\ntitle: front matter\n---\n<!doctype><html><body></body></html>"
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contentHTML = " <html><body></body></html>"
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contentLinefeedAndHTML = "\n<html><body></body></html>"
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contentIncompleteEndFrontmatterDelim = "---\ntitle: incomplete end fm delim\n--\nincomplete frontmatter delim"
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contentMissingEndFrontmatterDelim = "---\ntitle: incomplete end fm delim\nincomplete frontmatter delim"
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contentSlugWorking = "---\ntitle: slug doc 2\nslug: slug-doc-2\n\n---\nslug doc 2 content"
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contentSlugWorkingVariation = "---\ntitle: slug doc 3\nslug: slug-doc 3\n---\nslug doc 3 content"
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contentSlugBug = "---\ntitle: slug doc 2\nslug: slug-doc-2\n---\nslug doc 2 content"
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contentSlugWithJSONFrontMatter = "{\n \"categories\": \"d\",\n \"tags\": [\n \"a\", \n \"b\", \n \"c\"\n ]\n}\nJSON Front Matter with tags and categories"
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contentWithJSONLooseFrontmatter = "{\n \"categories\": \"d\"\n \"tags\": [\n \"a\" \n \"b\" \n \"c\"\n ]\n}\nJSON Front Matter with tags and categories"
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contentSlugWithJSONFrontMatterFirstLineOnly = "{\"categories\":\"d\",\"tags\":[\"a\",\"b\",\"c\"]}\nJSON Front Matter with tags and categories"
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contentSlugWithJSONFrontMatterFirstLine = "{\"categories\":\"d\",\n \"tags\":[\"a\",\"b\",\"c\"]}\nJSON Front Matter with tags and categories"
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)
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var lineEndings = []string{"\n", "\r\n"}
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var delimiters = []string{"---", "+++"}
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func pageMust(p Page, err error) *page {
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if err != nil {
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panic(err)
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}
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return p.(*page)
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}
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func TestDegenerateCreatePageFrom(t *testing.T) {
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tests := []struct {
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content string
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}{
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{contentMissingEndFrontmatterDelim},
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{contentIncompleteEndFrontmatterDelim},
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}
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for _, test := range tests {
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for _, ending := range lineEndings {
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test.content = strings.Replace(test.content, "\n", ending, -1)
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_, err := ReadFrom(strings.NewReader(test.content))
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if err == nil {
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t.Errorf("Content should return an err:\n%q\n", test.content)
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}
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}
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}
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}
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func checkPageRender(t *testing.T, p *page, expected bool) {
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if p.render != expected {
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t.Errorf("page.render should be %t, got: %t", expected, p.render)
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}
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}
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func checkPageFrontMatterIsNil(t *testing.T, p *page, content string, expected bool) {
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if bool(p.frontmatter == nil) != expected {
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t.Logf("\n%q\n", content)
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t.Errorf("page.frontmatter == nil? %t, got %t", expected, p.frontmatter == nil)
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}
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}
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func checkPageFrontMatterContent(t *testing.T, p *page, frontMatter string) {
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if p.frontmatter == nil {
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return
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}
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if !bytes.Equal(p.frontmatter, []byte(frontMatter)) {
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t.Errorf("frontmatter mismatch\nexp: %q\ngot: %q", frontMatter, p.frontmatter)
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}
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}
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func checkPageContent(t *testing.T, p *page, expected string) {
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if !bytes.Equal(p.content, []byte(expected)) {
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t.Errorf("content mismatch\nexp: %q\ngot: %q", expected, p.content)
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}
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}
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func TestStandaloneCreatePageFrom(t *testing.T) {
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tests := []struct {
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content string
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expectedMustRender bool
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frontMatterIsNil bool
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frontMatter string
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bodycontent string
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}{
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{contentNoFrontmatter, true, true, "", "a page with no front matter"},
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{contentWithFrontmatter, true, false, "---\ntitle: front matter\n---\n", "Content with front matter"},
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{contentHTMLNoDoctype, false, true, "", "<html>\n\t<body>\n\t</body>\n</html>"},
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{contentHTMLWithDoctype, false, true, "", "<!doctype html><html><body></body></html>"},
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{contentHTMLWithFrontmatter, true, false, "---\ntitle: front matter\n---\n", "<!doctype><html><body></body></html>"},
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{contentHTML, false, true, "", "<html><body></body></html>"},
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{contentLinefeedAndHTML, false, true, "", "<html><body></body></html>"},
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{contentSlugWithJSONFrontMatter, true, false, "{\n \"categories\": \"d\",\n \"tags\": [\n \"a\", \n \"b\", \n \"c\"\n ]\n}", "JSON Front Matter with tags and categories"},
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{contentWithJSONLooseFrontmatter, true, false, "{\n \"categories\": \"d\"\n \"tags\": [\n \"a\" \n \"b\" \n \"c\"\n ]\n}", "JSON Front Matter with tags and categories"},
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{contentSlugWithJSONFrontMatterFirstLineOnly, true, false, "{\"categories\":\"d\",\"tags\":[\"a\",\"b\",\"c\"]}", "JSON Front Matter with tags and categories"},
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{contentSlugWithJSONFrontMatterFirstLine, true, false, "{\"categories\":\"d\",\n \"tags\":[\"a\",\"b\",\"c\"]}", "JSON Front Matter with tags and categories"},
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{contentSlugWorking, true, false, "---\ntitle: slug doc 2\nslug: slug-doc-2\n\n---\n", "slug doc 2 content"},
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{contentSlugWorkingVariation, true, false, "---\ntitle: slug doc 3\nslug: slug-doc 3\n---\n", "slug doc 3 content"},
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{contentSlugBug, true, false, "---\ntitle: slug doc 2\nslug: slug-doc-2\n---\n", "slug doc 2 content"},
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}
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for _, test := range tests {
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for _, ending := range lineEndings {
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test.content = strings.Replace(test.content, "\n", ending, -1)
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test.frontMatter = strings.Replace(test.frontMatter, "\n", ending, -1)
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test.bodycontent = strings.Replace(test.bodycontent, "\n", ending, -1)
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p := pageMust(ReadFrom(strings.NewReader(test.content)))
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checkPageRender(t, p, test.expectedMustRender)
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checkPageFrontMatterIsNil(t, p, test.content, test.frontMatterIsNil)
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checkPageFrontMatterContent(t, p, test.frontMatter)
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checkPageContent(t, p, test.bodycontent)
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}
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}
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}
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func BenchmarkLongFormRender(b *testing.B) {
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tests := []struct {
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filename string
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buf []byte
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}{
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{filename: "long_text_test.md"},
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}
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for i, test := range tests {
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path := filepath.FromSlash(test.filename)
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f, err := os.Open(path)
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if err != nil {
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b.Fatalf("Unable to open %s: %s", path, err)
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}
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defer f.Close()
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membuf := new(bytes.Buffer)
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if _, err := io.Copy(membuf, f); err != nil {
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b.Fatalf("Unable to read %s: %s", path, err)
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}
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tests[i].buf = membuf.Bytes()
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}
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b.ResetTimer()
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for i := 0; i <= b.N; i++ {
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for _, test := range tests {
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ReadFrom(bytes.NewReader(test.buf))
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}
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}
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}
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func TestPageShouldRender(t *testing.T) {
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tests := []struct {
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content []byte
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expected bool
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}{
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{[]byte{}, false},
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{[]byte{'<'}, false},
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{[]byte{'-'}, true},
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{[]byte("--"), true},
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{[]byte("---"), true},
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{[]byte("---\n"), true},
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{[]byte{'a'}, true},
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}
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for _, test := range tests {
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for _, ending := range lineEndings {
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test.content = bytes.Replace(test.content, []byte("\n"), []byte(ending), -1)
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if render := shouldRender(test.content); render != test.expected {
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t.Errorf("Expected %s to shouldRender = %t, got: %t", test.content, test.expected, render)
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}
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}
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}
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}
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func TestPageHasFrontMatter(t *testing.T) {
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tests := []struct {
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content []byte
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expected bool
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}{
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{[]byte{'-'}, false},
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{[]byte("--"), false},
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{[]byte("---"), false},
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{[]byte("---\n"), true},
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{[]byte("---\n"), true},
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{[]byte("--- \n"), true},
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{[]byte("--- \n"), true},
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{[]byte{'a'}, false},
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{[]byte{'{'}, true},
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{[]byte("{\n "), true},
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{[]byte{'}'}, false},
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}
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for _, test := range tests {
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for _, ending := range lineEndings {
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test.content = bytes.Replace(test.content, []byte("\n"), []byte(ending), -1)
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if isFrontMatterDelim := isFrontMatterDelim(test.content); isFrontMatterDelim != test.expected {
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t.Errorf("Expected %q isFrontMatterDelim = %t, got: %t", test.content, test.expected, isFrontMatterDelim)
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}
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}
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}
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}
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func TestExtractFrontMatter(t *testing.T) {
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tests := []struct {
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frontmatter string
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extracted []byte
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errIsNil bool
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}{
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{"", nil, false},
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{"-", nil, false},
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{"---\n", nil, false},
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{"---\nfoobar", nil, false},
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{"---\nfoobar\nbarfoo\nfizbaz\n", nil, false},
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{"---\nblar\n-\n", nil, false},
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{"---\nralb\n---\n", []byte("---\nralb\n---\n"), true},
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{"---\neof\n---", []byte("---\neof\n---"), true},
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{"--- \neof\n---", []byte("---\neof\n---"), true},
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{"---\nminc\n---\ncontent", []byte("---\nminc\n---\n"), true},
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{"---\nminc\n--- \ncontent", []byte("---\nminc\n---\n"), true},
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{"--- \nminc\n--- \ncontent", []byte("---\nminc\n---\n"), true},
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{"---\ncnim\n---\ncontent\n", []byte("---\ncnim\n---\n"), true},
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{"---\ntitle: slug doc 2\nslug: slug-doc-2\n---\ncontent\n", []byte("---\ntitle: slug doc 2\nslug: slug-doc-2\n---\n"), true},
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{"---\npermalink: '/blog/title---subtitle.html'\n---\ncontent\n", []byte("---\npermalink: '/blog/title---subtitle.html'\n---\n"), true},
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}
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for _, test := range tests {
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for _, ending := range lineEndings {
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test.frontmatter = strings.Replace(test.frontmatter, "\n", ending, -1)
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test.extracted = bytes.Replace(test.extracted, []byte("\n"), []byte(ending), -1)
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for _, delim := range delimiters {
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test.frontmatter = strings.Replace(test.frontmatter, "---", delim, -1)
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test.extracted = bytes.Replace(test.extracted, []byte("---"), []byte(delim), -1)
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line, err := peekLine(bufio.NewReader(strings.NewReader(test.frontmatter)))
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if err != nil {
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continue
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}
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l, r := determineDelims(line)
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fm, err := extractFrontMatterDelims(bufio.NewReader(strings.NewReader(test.frontmatter)), l, r)
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if (err == nil) != test.errIsNil {
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t.Logf("\n%q\n", string(test.frontmatter))
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t.Errorf("Expected err == nil => %t, got: %t. err: %s", test.errIsNil, err == nil, err)
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continue
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}
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if !bytes.Equal(fm, test.extracted) {
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t.Errorf("Frontmatter did not match:\nexp: %q\ngot: %q", string(test.extracted), fm)
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}
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}
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}
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}
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}
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func TestExtractFrontMatterDelim(t *testing.T) {
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var (
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noErrExpected = true
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errExpected = false
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)
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tests := []struct {
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frontmatter string
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extracted string
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errIsNil bool
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}{
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{"", "", errExpected},
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{"{", "", errExpected},
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{"{}", "{}", noErrExpected},
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{"{} ", "{}", noErrExpected},
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{"{ } ", "{ }", noErrExpected},
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{"{ { }", "", errExpected},
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{"{ { } }", "{ { } }", noErrExpected},
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{"{ { } { } }", "{ { } { } }", noErrExpected},
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{"{\n{\n}\n}\n", "{\n{\n}\n}", noErrExpected},
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{"{\n \"categories\": \"d\",\n \"tags\": [\n \"a\", \n \"b\", \n \"c\"\n ]\n}\nJSON Front Matter with tags and categories", "{\n \"categories\": \"d\",\n \"tags\": [\n \"a\", \n \"b\", \n \"c\"\n ]\n}", noErrExpected},
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{"{\n \"categories\": \"d\"\n \"tags\": [\n \"a\" \n \"b\" \n \"c\"\n ]\n}\nJSON Front Matter with tags and categories", "{\n \"categories\": \"d\"\n \"tags\": [\n \"a\" \n \"b\" \n \"c\"\n ]\n}", noErrExpected},
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}
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for _, test := range tests {
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fm, err := extractFrontMatterDelims(bufio.NewReader(strings.NewReader(test.frontmatter)), []byte("{"), []byte("}"))
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if (err == nil) != test.errIsNil {
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t.Logf("\n%q\n", string(test.frontmatter))
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t.Errorf("Expected err == nil => %t, got: %t. err: %s", test.errIsNil, err == nil, err)
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continue
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}
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if !bytes.Equal(fm, []byte(test.extracted)) {
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t.Logf("\n%q\n", string(test.frontmatter))
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t.Errorf("Frontmatter did not match:\nexp: %q\ngot: %q", string(test.extracted), fm)
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}
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}
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}
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