testing: Rewrite all the old style integration tests to txtar style tests

And remove some not worth keeping (or too much work to convert).

Author: bep

config/configLoader.go

@@ -1,4 +1,4 @@
-// Copyright 2018 The Hugo Authors. All rights reserved.
+// Copyright 2025 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.
@@ -20,6 +20,7 @@ import (
 	"strings"
 
 	"github.com/gohugoio/hugo/common/herrors"
+	"github.com/gohugoio/hugo/parser"
 
 	"github.com/gohugoio/hugo/common/paths"
 
@@ -57,6 +58,7 @@ func IsValidConfigFilename(filename string) bool {
 	return validConfigFileExtensionsMap[ext]
 }
 
+// FromTOMLConfigString creates a config from the given TOML config. This is useful in tests.
 func FromTOMLConfigString(config string) Provider {
 	cfg, err := FromConfigString(config, "toml")
 	if err != nil {
@@ -65,6 +67,16 @@ func FromTOMLConfigString(config string) Provider {
 	return cfg
 }
 
+// FromMapToTOMLString converts the given map to a TOML string. This is useful in tests.
+func FromMapToTOMLString(v map[string]any) string {
+	var sb strings.Builder
+	err := parser.InterfaceToConfig(v, metadecoders.TOML, &sb)
+	if err != nil {
+		panic(err)
+	}
+	return sb.String()
+}
+
 // FromConfigString creates a config from the given YAML, JSON or TOML config. This is useful in tests.
 func FromConfigString(config, configType string) (Provider, error) {
 	m, err := readConfig(metadecoders.FormatFromString(configType), []byte(config))
@@ -218,7 +230,6 @@ func init() {
 		// Before 0.53 we used singular for "menu".
 		"{menu,languages/*/menu}", "menus",
 	)
-
 	if err != nil {
 		panic(err)
 	}

go.mod

@@ -44,7 +44,6 @@ require (
 	github.com/gohugoio/hugo-goldmark-extensions/passthrough v0.3.1
 	github.com/gohugoio/locales v0.14.0
 	github.com/gohugoio/localescompressed v1.0.1
-	github.com/gohugoio/testmodBuilder/mods v0.0.0-20190520184928-c56af20f2e95
 	github.com/google/go-cmp v0.7.0
 	github.com/gorilla/websocket v1.5.3
 	github.com/hairyhenderson/go-codeowners v0.7.0

hugolib/404_test.go

@@ -1,4 +1,4 @@
-// Copyright 2017 The Hugo Authors. All rights reserved.
+// Copyright 2025 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.
@@ -41,12 +41,7 @@ Page: {{ .Page.RelPermalink }}|
 Data: {{ len .Data }}|
 `
 
-	b := NewIntegrationTestBuilder(
-		IntegrationTestConfig{
-			T:           t,
-			TxtarString: files,
-		},
-	).Build()
+	b := Test(t, files)
 
 	b.AssertFileContent("public/index.html", "All. home. |")
 
@@ -68,25 +63,6 @@ Data: 1|
 `)
 }
 
-func Test404WithBase(t *testing.T) {
-	t.Parallel()
-
-	b := newTestSitesBuilder(t)
-	b.WithSimpleConfigFile().WithTemplates("404.html", `{{ define "main" }}
-Page not found
-{{ end }}`,
-		"baseof.html", `Base: {{ block "main" . }}{{ end }}`).WithContent("page.md", ``)
-
-	b.Build(BuildCfg{})
-
-	// Note: We currently have only 1 404 page. One might think that we should have
-	// multiple, to follow the Custom Output scheme, but I don't see how that would work
-	// right now.
-	b.AssertFileContent("public/404.html", `
-Base:
-Page not found`)
-}
-
 func Test404EditTemplate(t *testing.T) {
 	t.Parallel()
 

hugolib/alias_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 The Hugo Authors. All rights reserved.
+// Copyright 2025 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.
@@ -14,37 +14,17 @@
 package hugolib
 
 import (
-	"os"
 	"path/filepath"
 	"runtime"
+	"strings"
 	"testing"
 
-	qt "github.com/frankban/quicktest"
 	"github.com/gohugoio/hugo/common/loggers"
-)
-
-const pageWithAlias = `---
-title: Has Alias
-aliases: ["/foo/bar/", "rel"]
----
-For some moments the old man did not reply. He stood with bowed head, buried in deep thought. But at last he spoke.
-`
-
-const pageWithAliasMultipleOutputs = `---
-title: Has Alias for HTML and AMP
-aliases: ["/foo/bar/"]
-outputs: ["HTML", "AMP", "JSON"]
----
-For some moments the old man did not reply. He stood with bowed head, buried in deep thought. But at last he spoke.
-`
-
-const (
-	basicTemplate = "<html><body>{{.Content}}</body></html>"
+	"github.com/gohugoio/hugo/config"
 )
 
 func TestAlias(t *testing.T) {
 	t.Parallel()
-	c := qt.New(t)
 
 	tests := []struct {
 		fileSuffix string
@@ -60,15 +40,26 @@ func TestAlias(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		b := newTestSitesBuilder(t)
-		b.WithSimpleConfigFileAndSettings(test.settings).WithContent("blog/page.md", pageWithAlias)
-		b.CreateSites().Build(BuildCfg{})
+		files := `
+-- hugo.toml --
+disableKinds = ["rss", "sitemap", "taxonomy", "term"]
+CONFIG
+-- content/blog/page.md --
+---
+title: Has Alias
+aliases: ["/foo/bar/", "rel"]
+---
+For some moments the old man did not reply. He stood with bowed head, buried in deep thought. But at last he spoke.
+-- layouts/all.html --
+Title: {{ .Title }}|Content: {{ .Content }}|
+`
+		files = strings.Replace(files, "CONFIG", config.FromMapToTOMLString(test.settings), 1)
 
-		c.Assert(len(b.H.Sites), qt.Equals, 1)
-		c.Assert(len(b.H.Sites[0].RegularPages()), qt.Equals, 1)
+		b := Test(t, files)
 
 		// the real page
 		b.AssertFileContent("public/blog/page"+test.fileSuffix, "For some moments the old man")
+
 		// the alias redirectors
 		b.AssertFileContent("public/foo/bar"+test.fileSuffix, "<meta http-equiv=\"refresh\" content=\"0; url="+test.urlPrefix+"/blog/page"+test.urlSuffix+"\">")
 		b.AssertFileContent("public/blog/rel"+test.fileSuffix, "<meta http-equiv=\"refresh\" content=\"0; url="+test.urlPrefix+"/blog/page"+test.urlSuffix+"\">")
@@ -78,19 +69,25 @@ func TestAlias(t *testing.T) {
 func TestAliasMultipleOutputFormats(t *testing.T) {
 	t.Parallel()
 
-	c := qt.New(t)
-
-	b := newTestSitesBuilder(t)
-	b.WithSimpleConfigFile().WithContent("blog/page.md", pageWithAliasMultipleOutputs)
-
-	b.WithTemplates(
-		"_default/single.html", basicTemplate,
-		"_default/single.amp.html", basicTemplate,
-		"_default/single.json", basicTemplate)
-
-	b.CreateSites().Build(BuildCfg{})
+	files := `
+-- hugo.toml --
+baseURL = "http://example.com"
+-- layouts/_default/single.html --
+{{ .Content }}
+-- layouts/_default/single.amp.html --
+{{ .Content }}
+-- layouts/_default/single.json --
+{{ .Content }}
+-- content/blog/page.md --
+---
+title: Has Alias for HTML and AMP
+aliases: ["/foo/bar/"]
+outputs: ["html", "amp", "json"]
+---
+For some moments the old man did not reply. He stood with bowed head, buried in deep thought. But at last he spoke.
+`
 
-	b.H.Sites[0].pageMap.debugPrint("", 999, os.Stdout)
+	b := Test(t, files)
 
 	// the real pages
 	b.AssertFileContent("public/blog/page/index.html", "For some moments the old man")
@@ -100,7 +97,7 @@ func TestAliasMultipleOutputFormats(t *testing.T) {
 	// the alias redirectors
 	b.AssertFileContent("public/foo/bar/index.html", "<meta http-equiv=\"refresh\" content=\"0; ")
 	b.AssertFileContent("public/amp/foo/bar/index.html", "<meta http-equiv=\"refresh\" content=\"0; ")
-	c.Assert(b.CheckExists("public/foo/bar/index.json"), qt.Equals, false)
+	b.AssertFileExists("public/foo/bar/index.json", false)
 }
 
 func TestAliasTemplate(t *testing.T) {