gistfile1.java

package lv.craftsmans;

import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runner.RunWith;
import org.junit.runners.model.Statement;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestExecutionListeners;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = RuleInjectionTest.AppConfiguration.class)
@TestExecutionListeners(RuleSupportingDependencyInjectionTestExecutionListener.class)
public class RuleInjectionTest {

    @Rule
    public TestRule ruleWithAutowiredDependency = new RuleWithAutowiredDependency();

    @Test
    public void canInjectDependenciesIntoRuleAnnotatedMembers() {
    }

    @ComponentScan("lv.craftsmans")
    static class AppConfiguration {

        @Bean
        Injectable injectable() {
            return new Injectable();
        }

    }

    static class Injectable {

        void something() {
            System.out.println("hello");
        }

    }

    static class RuleWithAutowiredDependency implements TestRule {

        @Autowired
        Injectable injectable;

        @Override
        public Statement apply(Statement base, Description description) {
            injectable.something();
            return new Statement() {
                @Override
                public void evaluate() throws Throwable {
                    base.evaluate();
                }
            };
        }
    }


}