Introduced shared Benchmarks utility (#972)

src/test/java/com/pivovarit/collectors/benchmark/Bench.java → src/test/java/com/pivovarit/collectors/benchmark/BatchedVsNonBatchedBenchmark.java

@@ -8,10 +8,7 @@
 import org.openjdk.jmh.annotations.Setup;
 import org.openjdk.jmh.annotations.State;
 import org.openjdk.jmh.annotations.TearDown;
-import org.openjdk.jmh.results.format.ResultFormatType;
-import org.openjdk.jmh.runner.Runner;
 import org.openjdk.jmh.runner.RunnerException;
-import org.openjdk.jmh.runner.options.OptionsBuilder;
 
 import java.util.List;
 import java.util.concurrent.ExecutorService;
@@ -20,7 +17,7 @@
 
 import static java.util.stream.Collectors.toList;
 
-public class Bench {
+public class BatchedVsNonBatchedBenchmark {
 
     @State(Scope.Benchmark)
     public static class BenchmarkState {
@@ -74,14 +71,6 @@ public List<Integer> parallel_batch_streaming_collect(BenchmarkState state) {
     }
 
     public static void main(String[] args) throws RunnerException {
-        new Runner(
-          new OptionsBuilder()
-            .include(Bench.class.getSimpleName())
-            .warmupIterations(5)
-            .measurementIterations(5)
-            .resultFormat(ResultFormatType.JSON)
-            .result("result.json")
-            .forks(1)
-            .build()).run();
+        Benchmarks.run(BatchedVsNonBatchedBenchmark.class);
     }
 }

src/test/java/com/pivovarit/collectors/benchmark/Benchmarks.java

@@ -0,0 +1,27 @@
+package com.pivovarit.collectors.benchmark;
+
+import org.openjdk.jmh.results.format.ResultFormatType;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.RunnerException;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+
+import java.nio.file.Path;
+
+final class Benchmarks {
+
+    private Benchmarks() {
+    }
+
+    private static final Path BENCHMARKS_PATH = Path.of("src/test/resources/benchmarks/");
+
+    static void run(Class<?> clazz) throws RunnerException {
+        new Runner(new OptionsBuilder()
+          .include(clazz.getSimpleName())
+          .warmupIterations(3)
+          .measurementIterations(5)
+          .resultFormat(ResultFormatType.JSON)
+          .result(Benchmarks.BENCHMARKS_PATH.resolve("%s.json".formatted(clazz.getSimpleName())).toString())
+          .forks(1)
+          .build()).run();
+    }
+}