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// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bench
import (
"fmt"
"testing"
)
func BenchmarkRename(b *testing.B) {
tests := []struct {
repo string
file string
regexp string
baseName string
}{
{"google-cloud-go", "httpreplay/httpreplay.go", `func (NewRecorder)`, "NewRecorder"},
{"istio", "pkg/config/model.go", `(Namespace) string`, "Namespace"},
{"kubernetes", "pkg/controller/lookup_cache.go", `hashutil\.(DeepHashObject)`, "DeepHashObject"},
{"kuma", "pkg/events/interfaces.go", `Delete`, "Delete"},
{"pkgsite", "internal/log/log.go", `func (Infof)`, "Infof"},
{"starlark", "starlark/eval.go", `Program\) (Filename)`, "Filename"},
{"tools", "internal/lsp/cache/snapshot.go", `meta \*(metadataGraph)`, "metadataGraph"},
}
for _, test := range tests {
names := 0 // bench function may execute multiple times
b.Run(test.repo, func(b *testing.B) {
env := getRepo(b, test.repo).sharedEnv(b)
env.OpenFile(test.file)
loc := env.RegexpSearch(test.file, test.regexp)
env.Await(env.DoneWithOpen())
env.Rename(loc, test.baseName+"X") // pre-warm the query
b.ResetTimer()
if stopAndRecord := startProfileIfSupported(b, env, qualifiedName(test.repo, "rename")); stopAndRecord != nil {
defer stopAndRecord()
}
for i := 0; i < b.N; i++ {
names++
newName := fmt.Sprintf("%s%d", test.baseName, names)
env.Rename(loc, newName)
}
})
}
}
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