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package com.rockymadden.stringmetric.similarity
import com.google.caliper.Param
import com.rockymadden.stringmetric.{CaliperBenchmark, CaliperRunner}
import scala.util.Random
final class WeightedLevenshteinMetricBenchmark extends CaliperBenchmark {
@Param(Array("0", "1", "2", "4", "8", "16"))
var length: Int = _
var string1: String = _
var charArray1: Array[Char] = _
var string2: String = _
var charArray2: Array[Char] = _
override protected def setUp() {
@annotation.tailrec
def random(l: Int, ps: String = null): String =
if (l == 0) ""
else {
val s = Random.alphanumeric.take(l).mkString
if (ps == null || s != ps) s
else random(l, ps)
}
string1 = random(length)
string2 = random(length, string1)
charArray1 = string1.toCharArray
charArray2 = string2.toCharArray
}
def timeCompareWithDifferentCharArrays(reps: Int) = run(reps) {
WeightedLevenshteinMetric(1, 1, 1).compare(charArray1, charArray2)
}
def timeCompareWithDifferentStrings(reps: Int) = run(reps) {
WeightedLevenshteinMetric(1, 1, 1).compare(string1, string2)
}
def timeCompareWithIdenticalCharArrays(reps: Int) = run(reps) {
WeightedLevenshteinMetric(1, 1, 1).compare(charArray1, charArray1)
}
def timeCompareWithIdenticalStrings(reps: Int) = run(reps) {
WeightedLevenshteinMetric(1, 1, 1).compare(string1, string1)
}
}
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