related: Add benchmark

diff --git a/related/integration_test.go b/related/integration_test.go
new file mode 100644 (file)
index 0000000..ba9eba7
--- /dev/null
+++ b/related/integration_test.go
@@ -0,0 +1,74 @@
+// Copyright 2023 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 related_test
+
+import (
+       "fmt"
+       "math/rand"
+       "testing"
+
+       "github.com/gohugoio/hugo/hugolib"
+)
+
+func BenchmarkRelatedSite(b *testing.B) {
+       files := `
+-- config.toml --
+baseURL = "http://example.com/"
+disableKinds = ["taxonomy", "term", "RSS", "sitemap", "robotsTXT"]
+[related]
+  includeNewer = false
+  threshold = 80
+  toLower = false
+[[related.indices]]
+  name = 'keywords'
+  weight = 70  
+-- layouts/_default/single.html --
+Len related: {{ site.RegularPages.Related . | len }}
+`
+
+       createContent := func(n int) string {
+               base := `---
+title: "Page %d"
+keywords: ['k%d']
+---
+`
+
+               for i := 0; i < 32; i++ {
+                       base += fmt.Sprintf("\n## Title %d", rand.Intn(100))
+               }
+
+               return fmt.Sprintf(base, n, rand.Intn(32))
+
+       }
+
+       for i := 1; i < 100; i++ {
+               files += fmt.Sprintf("\n-- content/posts/p%d.md --\n"+createContent(i+1), i+1)
+       }
+
+       cfg := hugolib.IntegrationTestConfig{
+               T:           b,
+               TxtarString: files,
+       }
+       builders := make([]*hugolib.IntegrationTestBuilder, b.N)
+
+       for i := range builders {
+               builders[i] = hugolib.NewIntegrationTestBuilder(cfg)
+       }
+
+       b.ResetTimer()
+
+       for i := 0; i < b.N; i++ {
+               builders[i].Build()
+       }
+}