}

	b.ReportAllocs()
	// Run once and then reset the timer.
	// This effectively discards the very large initial flate setup cost,
	// as well as the initialization of bigBuf.
	runOnce(&bytes.Buffer{})
	b.ResetTimer()

	b.RunParallel(func(pb *testing.PB) {
		var buf bytes.Buffer
		for pb.Next() {
			runOnce(&buf)
		}
	})
}

func writeTestsToFS(tests []WriteTest) fs.FS {
	fsys := fstest.MapFS{}

		name  string
		input []byte
	}{
		{"Valid", []byte("typical")},
		{"InvalidASCII", []byte("foo\xffbar")},
		{"InvalidNonASCII", []byte("日本語\xff日本語")},
	}
	replacement := []byte("\uFFFD")
	b.ResetTimer()
	for _, test := range tests {
		b.Run(test.name, func(b *testing.B) {
			for i := 0; i < b.N; i++ {
				ToValidUTF8(test.input, replacement)
			}
		})
	}
}

pkg testing, method (*B) Fatalf(string, ...interface{})
pkg testing, method (*B) Log(...interface{})
pkg testing, method (*B) Logf(string, ...interface{})
pkg testing, method (*B) ResetTimer()
pkg testing, method (*B) SetBytes(int64)
pkg testing, method (*B) StartTimer()
pkg testing, method (*B) StopTimer()
pkg testing, method (*T) Error(...interface{})