hugolib: Add another site benchmark

Also rework test test setup so the benchmarks can also be run as tests, which
is useful when creating new benchmarks an make sure they ... work.

hugolib/site_benchmark_new_test.go

@@ -14,11 +14,20 @@
 package hugolib
 
 import (
+	"fmt"
+	"path"
+	"path/filepath"
+	"strings"
 	"testing"
 )
 
-// TODO(bep) eventually remove the old (too complicated setup).
-func BenchmarkSiteNew(b *testing.B) {
+type siteBenchmarkTestcase struct {
+	name   string
+	create func(t testing.TB) *sitesBuilder
+	check  func(s *sitesBuilder)
+}
+
+func getBenchmarkSiteNewTestCases() []siteBenchmarkTestcase {
 	// TODO(bep) create some common and stable data set
 
 	const pageContent = `---
@@ -34,12 +43,8 @@ baseURL = "https://example.com"
 
 `
 
-	benchmarks := []struct {
-		name   string
-		create func(i int) *sitesBuilder
-		check  func(s *sitesBuilder)
-	}{
-		{"Bundle with image", func(i int) *sitesBuilder {
+	benchmarks := []siteBenchmarkTestcase{
+		{"Bundle with image", func(b testing.TB) *sitesBuilder {
 			sb := newTestSitesBuilder(b).WithConfigFile("toml", config)
 			sb.WithContent("content/blog/mybundle/index.md", pageContent)
 			sb.WithSunset("content/blog/mybundle/sunset1.jpg")
@@ -52,7 +57,7 @@ baseURL = "https://example.com"
 
 			},
 		},
-		{"Bundle with JSON file", func(i int) *sitesBuilder {
+		{"Bundle with JSON file", func(b testing.TB) *sitesBuilder {
 			sb := newTestSitesBuilder(b).WithConfigFile("toml", config)
 			sb.WithContent("content/blog/mybundle/index.md", pageContent)
 			sb.WithContent("content/blog/mybundle/mydata.json", `{ "hello": "world" }`)
@@ -65,31 +70,95 @@ baseURL = "https://example.com"
 
 			},
 		},
-		{"Multiple languages", func(i int) *sitesBuilder {
+		{"Deep content tree", func(b testing.TB) *sitesBuilder {
+
 			sb := newTestSitesBuilder(b).WithConfigFile("toml", `
 baseURL = "https://example.com"
 
 [languages]
 [languages.en]
 weight=1
+contentDir="content/en"
 [languages.fr]
 weight=2
+contentDir="content/fr"
+[languages.no]
+weight=3
+contentDir="content/no"
+[languages.sv]
+weight=4
+contentDir="content/sv"
 			
 `)
 
+			createContent := func(dir, name string) {
+				sb.WithContent(filepath.Join("content", dir, name), pageContent)
+			}
+
+			createBundledFiles := func(dir string) {
+				sb.WithContent(filepath.Join("content", dir, "data.json"), `{ "hello": "world" }`)
+				for i := 1; i <= 3; i++ {
+					sb.WithContent(filepath.Join("content", dir, fmt.Sprintf("page%d.md", i)), pageContent)
+				}
+			}
+
+			for _, lang := range []string{"en", "fr", "no", "sv"} {
+				for level := 1; level <= 5; level++ {
+					sectionDir := path.Join(lang, strings.Repeat("section/", level))
+					createContent(sectionDir, "_index.md")
+					createBundledFiles(sectionDir)
+					for i := 1; i <= 3; i++ {
+						leafBundleDir := path.Join(sectionDir, fmt.Sprintf("bundle%d", i))
+						createContent(leafBundleDir, "index.md")
+						createBundledFiles(path.Join(leafBundleDir, "assets1"))
+						createBundledFiles(path.Join(leafBundleDir, "assets1", "assets2"))
+					}
+				}
+			}
+
 			return sb
 		},
 			func(s *sitesBuilder) {
+				s.CheckExists("public/blog/mybundle/index.html")
+				s.Assertions.Equal(4, len(s.H.Sites))
+				s.Assertions.Equal(len(s.H.Sites[0].RegularPages()), len(s.H.Sites[1].RegularPages()))
+				s.Assertions.Equal(30, len(s.H.Sites[0].RegularPages()))
 
 			},
 		},
 	}
 
+	return benchmarks
+
+}
+
+// Run the benchmarks below as tests. Mostly useful when adding new benchmark
+// variants.
+func TestBenchmarkSiteNew(b *testing.T) {
+	benchmarks := getBenchmarkSiteNewTestCases()
+	for _, bm := range benchmarks {
+		b.Run(bm.name, func(b *testing.T) {
+			s := bm.create(b)
+
+			err := s.BuildE(BuildCfg{})
+			if err != nil {
+				b.Fatal(err)
+			}
+			bm.check(s)
+
+		})
+	}
+}
+
+// TODO(bep) eventually remove the old (too complicated setup).
+func BenchmarkSiteNew(b *testing.B) {
+	benchmarks := getBenchmarkSiteNewTestCases()
+
 	for _, bm := range benchmarks {
 		b.Run(bm.name, func(b *testing.B) {
 			sites := make([]*sitesBuilder, b.N)
 			for i := 0; i < b.N; i++ {
-				sites[i] = bm.create(i)
+				sites[i] = bm.create(b)
 			}
 
 			b.ResetTimer()