LoggingRule.java

package org.test4j.junit.demo.features;

import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;

public class LoggingRule implements TestRule {
	public class LoggingStatement extends Statement {
		private final Statement statement;

		public LoggingStatement(Statement aStatement, String aName) {
			statement = aStatement;
		}

		@Override
		public void evaluate() throws Throwable {
			System.out.println("before: " + name);
			statement.evaluate();
			System.out.println("after: " + name);
		}
	}

	private final String name;

	public LoggingRule(String aName) {
		name = aName;
	}

	public Statement apply(Statement statement, Description description) {
		System.out.println("apply: " + name);
		return new LoggingStatement(statement, name);
	}
}