// 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 livereloadinject import ( "bytes" "io" "net/url" "strings" "testing" qt "github.com/frankban/quicktest" "github.com/gohugoio/hugo/transform" ) func TestLiveReloadInject(t *testing.T) { c := qt.New(t) lrurl, err := url.Parse("http://localhost:1234/subpath") if err != nil { t.Errorf("Parsing test URL failed") return } expectBase := `<script src="/subpath/livereload.js?mindelay=10&v=2&port=1234&path=subpath/livereload" data-no-instant defer></script>` apply := func(s string) string { out := new(bytes.Buffer) in := strings.NewReader(s) tr := transform.New(New(*lrurl)) tr.Apply(out, in) return out.String() } c.Run("Inject after head tag", func(c *qt.C) { c.Assert(apply("<!doctype html><html><head>after"), qt.Equals, "<!doctype html><html><head>"+expectBase+"after") }) c.Run("Inject after head tag when doctype and html omitted", func(c *qt.C) { c.Assert(apply("<head>after"), qt.Equals, "<head>"+expectBase+"after") }) c.Run("Inject after html when head omitted", func(c *qt.C) { c.Assert(apply("<html>after"), qt.Equals, "<html>"+expectBase+"after") }) c.Run("Inject after doctype when head and html omitted", func(c *qt.C) { c.Assert(apply("<!doctype html>after"), qt.Equals, "<!doctype html>"+expectBase+"after") }) c.Run("Inject before other elements if all else omitted", func(c *qt.C) { c.Assert(apply("<title>after</title>"), qt.Equals, expectBase+"<title>after</title>") }) c.Run("Inject before text content if all else omitted", func(c *qt.C) { c.Assert(apply("after"), qt.Equals, expectBase+"after") }) c.Run("Inject after HeAd tag MiXed CaSe", func(c *qt.C) { c.Assert(apply("<HeAd>AfTer"), qt.Equals, "<HeAd>"+expectBase+"AfTer") }) c.Run("Inject after HtMl tag MiXed CaSe", func(c *qt.C) { c.Assert(apply("<HtMl>AfTer"), qt.Equals, "<HtMl>"+expectBase+"AfTer") }) c.Run("Inject after doctype mixed case", func(c *qt.C) { c.Assert(apply("<!DocType HtMl>AfTer"), qt.Equals, "<!DocType HtMl>"+expectBase+"AfTer") }) c.Run("Inject after html tag with attributes", func(c *qt.C) { c.Assert(apply(`<html lang="en">after`), qt.Equals, `<html lang="en">`+expectBase+"after") }) c.Run("Inject after html tag with newline", func(c *qt.C) { c.Assert(apply("<html\n>after"), qt.Equals, "<html\n>"+expectBase+"after") }) c.Run("Skip comments and whitespace", func(c *qt.C) { c.Assert( apply(" <!--x--> <!doctype html>\n<?xml instruction ?> <head>after"), qt.Equals, " <!--x--> <!doctype html>\n<?xml instruction ?> <head>"+expectBase+"after", ) }) c.Run("Do not search inside comment", func(c *qt.C) { c.Assert(apply("<html><!--<head>-->"), qt.Equals, "<html><!--<head>-->"+expectBase) }) c.Run("Do not search inside scripts", func(c *qt.C) { c.Assert(apply("<html><script>`<head>`</script>"), qt.Equals, "<html>"+expectBase+"<script>`<head>`</script>") }) c.Run("Do not search inside templates", func(c *qt.C) { c.Assert(apply("<html><template><head></template>"), qt.Not(qt.Equals), "<html><template><head>"+expectBase+"</template>") }) c.Run("Search from the start of the input", func(c *qt.C) { c.Assert(apply("<head>after<head>"), qt.Equals, "<head>"+expectBase+"after<head>") }) c.Run("Do not mistake header for head", func(c *qt.C) { c.Assert(apply("<html><header>"), qt.Equals, "<html>"+expectBase+"<header>") }) c.Run("Do not mistake custom elements for head", func(c *qt.C) { c.Assert(apply("<html><head-custom>"), qt.Equals, "<html>"+expectBase+"<head-custom>") }) } func BenchmarkLiveReloadInject(b *testing.B) { s := ` <html> <head> </head> <body> </body> </html> ` in := strings.NewReader(s) lrurl, err := url.Parse("http://localhost:1234/subpath") if err != nil { b.Fatalf("Parsing test URL failed") } tr := transform.New(New(*lrurl)) b.ResetTimer() for i := 0; i < b.N; i++ { in.Seek(0, 0) tr.Apply(io.Discard, in) } }