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C.2. Sample Pax-Exam Test Class
Sample test class
Example C.2, “CalculatorITestClass” shows an example of how to write a test class for Apache Karaf in the Pax-Exam testing framework. The
CalculatorITest class configures the Apache Karaf environment, installs the obr and wrapper features, and then runs a test against the two features (where the obr and wrapper features implement particular sets of commands in the command console).
Example C.2. CalculatorITestClass
// Java /* * Licensed to the Apache Software Foundation (ASF) * ... */ package org.ops4j.pax.exam.sample.karaf; import static org.ops4j.pax.exam.CoreOptions.maven; import static org.ops4j.pax.exam.CoreOptions.mavenBundle; import static org.ops4j.pax.exam.karaf.options.KarafDistributionOption.configureConsole; import static org.ops4j.pax.exam.karaf.options.KarafDistributionOption.features; import static org.ops4j.pax.exam.karaf.options.KarafDistributionOption.karafDistributionConfiguration; import static org.ops4j.pax.exam.karaf.options.KarafDistributionOption.keepRuntimeFolder; import java.io.File; import javax.inject.Inject; import org.junit.Assert; import org.junit.Test; import org.junit.runner.RunWith; import org.ops4j.pax.exam.Configuration; import org.ops4j.pax.exam.ConfigurationManager; import org.ops4j.pax.exam.Option; import org.ops4j.pax.exam.junit.PaxExam; import org.ops4j.pax.exam.options.MavenArtifactUrlReference; import org.ops4j.pax.exam.options.MavenUrlReference; import org.ops4j.pax.exam.sample8.ds.Calculator; import org.slf4j.Logger; import org.slf4j.LoggerFactory; @RunWith(PaxExam.class) 1 public class CalculatorITest { private static Logger LOG = LoggerFactory.getLogger(CalculatorITest.class); @Inject 2 protected Calculator calculator; @Configuration 3 public Option[] config() { MavenArtifactUrlReference karafUrl = maven() .groupId("org.apache.karaf") .artifactId("apache-karaf") .version(karafVersion()) .type("zip"); MavenUrlReference karafStandardRepo = maven() .groupId("org.apache.karaf.features") .artifactId("standard") .version(karafVersion()) .classifier("features") .type("xml"); return new Option[] { // KarafDistributionOption.debugConfiguration("5005", true), karafDistributionConfiguration() .frameworkUrl(karafUrl) .unpackDirectory(new File("target", "exam")) .useDeployFolder(false), keepRuntimeFolder(), configureConsole().ignoreLocalConsole(), features(karafStandardRepo , "scr"), mavenBundle() .groupId("org.ops4j.pax.exam.samples") .artifactId("pax-exam-sample8-ds") .versionAsInProject().start(), }; } public static String karafVersion() { ConfigurationManager cm = new ConfigurationManager(); String karafVersion = cm.getProperty("pax.exam.karaf.version", "3.0.0"); return karafVersion; } @Test 4 public void testAdd() { int result = calculator.add(1, 2); LOG.info("Result of add was {}", result); Assert.assertEquals(3, result); } }
- 1
- The
@RunWithannotation instructs JUnit4 to run the following test with the PaxExam class. This is the key step for integrating JUnit4 with the Pax-Exam testing framework. - 2
- The
@Injectannotation is a javax annotation that identifies the following method as a service to be injected and executed in the testing framework. - 3
- The
@Configurationannotation is specific to Pax-Exam and marks the following method as a configuration method for setting Pax-Exam testing options. The configuration method must be declared aspublic staticand must have a return value of type,org.ops4j.pax.exam.Option[]. - 4
- The
@Testannotation is a standard JUnit4 annotation that identifies the following method as a test method to be executed in the testing framework.
