Setup project for building with Travis CI

Author: blalasaadri

.travic-ci.yml

@@ -0,0 +1,12 @@
+dist: bionic
+language: java
+jdk:
+ - openjdk8
+ - oraclejdk8
+ - oraclejdk9
+ - openjdk10
+ - oraclejdk11
+ - openjdk11
+ - oraclejdk12
+ - oraclejdk13
+ - oraclejdk14

pom.xml

@@ -74,6 +74,25 @@ THE POSSIBILITY OF SUCH DAMAGE.
  <version>${jmh.version}</version>
  <scope>provided</scope>
  </dependency>
+
+ <dependency>
+ <groupId>org.junit.jupiter</groupId>
+ <artifactId>junit-jupiter-api</artifactId>
+ <version>5.6.0</version>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.junit.jupiter</groupId>
+ <artifactId>junit-jupiter-engine</artifactId>
+ <version>5.6.0</version>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.assertj</groupId>
+ <artifactId>assertj-core</artifactId>
+ <version>3.11.1</version>
+ <scope>test</scope>
+ </dependency>
  </dependencies>
 
  <build>

src/test/java/com/github/blalasaadri/MyBenchmarkTest.java

@@ -0,0 +1,51 @@
+package com.github.blalasaadri;
+
+import org.junit.jupiter.api.Test;
+import org.openjdk.jmh.results.RunResult;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.RunnerException;
+import org.openjdk.jmh.runner.options.Options;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+import org.openjdk.jmh.runner.options.TimeValue;
+
+import java.text.DecimalFormat;
+import java.util.Collection;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+/**
+ * Heavily inspired by <a href="https://www.retit.de/continuous-benchmarking-with-jmh-and-junit/">Continuous Benchmarking with JMH and JUnit</a>.
+ */
+class MyBenchmarkTest {
+
+ private static DecimalFormat df = new DecimalFormat("0.000");
+ private static final double REFERENCE_SCORE = 37.132;
+
+ @Test
+ public void runJmhBenchmark() throws RunnerException {
+ Options opt = new OptionsBuilder()
+ .measurementTime(TimeValue.seconds(1))
+ .measurementIterations(3)
+ .forks(3)
+ .include(MyBenchmark.class.getSimpleName())
+ .build();
+ Collection<RunResult> runResults = new Runner(opt).run();
+ assertFalse(runResults.isEmpty());
+
+ assertThat(runResults)
+ .allSatisfy(runResult -> assertDeviationWithin(runResult, REFERENCE_SCORE, 0.05));
+ }
+
+ private static void assertDeviationWithin(RunResult result, double referenceScore, double maxDeviation) {
+ double score = result.getPrimaryResult().getScore();
+ double deviation = Math.abs(score / referenceScore - 1);
+ String deviationString = df.format(deviation * 100) + "%";
+ String maxDeviationString = df.format(maxDeviation * 100) + "%";
+ String errorMessage = "Deviation " + deviationString + " exceeds maximum allowed deviation " + maxDeviationString;
+ assertThat(deviation)
+ .withFailMessage(errorMessage)
+ .isLessThan(maxDeviation);
+ }
+
+}