Add the benchmark related to seed

Author: seongahjo

fixture-monkey-api/src/main/java/com/navercorp/fixturemonkey/api/random/Randoms.java

@@ -78,7 +78,7 @@ public static int nextInt(int bound) {
 		return current().nextInt(bound);
 	}
 
-	private static Random create(long seed) {
+	public static Random create(long seed) {
 		if (USE_JQWIK_ENGINE) {
 			SEED.set(seed);
 			return SourceOfRandomness.create(String.valueOf(seed));

fixture-monkey-benchmarks/fixture-monkey-benchmark/src/jmh/java/com/navercorp/fixturemonkey/SeedBenchmark.java

@@ -0,0 +1,73 @@
+/*
+ * Fixture Monkey
+ *
+ * Copyright (c) 2021-present NAVER Corp.
+ *
+ * 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 com.navercorp.fixturemonkey;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Level;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.infra.Blackhole;
+
+import com.navercorp.fixturemonkey.api.random.Randoms;
+import com.navercorp.fixturemonkey.api.type.TypeCache;
+import com.navercorp.fixturemonkey.javax.validation.plugin.JavaxValidationPlugin;
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MILLISECONDS)
+@State(Scope.Benchmark)
+public class SeedBenchmark {
+	private static final int seed = 1234;
+	private static final int COUNT = 500;
+	private static final FixtureMonkey SUT = FixtureMonkey.builder()
+		.plugin(new JavaxValidationPlugin())
+		.seed(1234)
+		.build();
+
+	@Setup(value = Level.Iteration)
+	public void setUp() {
+		TypeCache.clearCache();
+	}
+
+	@Benchmark
+	public void eachIterationCreatesNewJqwikSeed(Blackhole blackhole) throws Exception {
+		Randoms.create(Randoms.nextInt(Integer.MAX_VALUE));
+		blackhole.consume(generateOrderSheet());
+	}
+
+	@Benchmark
+	public void eachIterationNotCreatesNewJqwikSeed(Blackhole blackhole) throws Exception {
+		blackhole.consume(generateOrderSheet());
+	}
+
+	private List<OrderSheet> generateOrderSheet() {
+		List<OrderSheet> result = new ArrayList<>();
+		for (int i = 0; i < COUNT; i++) {
+			result.add(SeedBenchmark.SUT.giveMeOne(OrderSheet.class));
+		}
+		return result;
+	}
+}