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package org.junit.rules;

import org.junit.internal.AssumptionViolatedException;
import org.junit.runners.model.FrameworkMethod;
import org.junit.runners.model.Statement;

/**
 * TestWatchman is a base class for Rules that take note of the testing
 * action, without modifying it. For example, this class will keep a log of each
 * passing and failing test:
 *
 *  * public static class WatchmanTest {
 *  private static String watchedLog;
 *
 *  @Rule
 *  public MethodRule watchman= new TestWatchman() {
 *      @Override
 *      public void failed(Throwable e, FrameworkMethod method) {
 *          watchedLog+= method.getName() + " " + e.getClass().getSimpleName()
 *                  + "\n";
 *         }
 *
 *      @Override
 *      public void succeeded(FrameworkMethod method) {
 *          watchedLog+= method.getName() + " " + "success!\n";
 *         }
 *     };
 *
 *  @Test
 *  public void fails() {
 *      fail();
 *     }
 *
 *  @Test
 *  public void succeeds() {
 *     }
 * }
 * 
 *
 * @since 4.7
 * @deprecated Use {@link TestWatcher} (which implements {@link TestRule}) instead.
 */
@Deprecated
public class TestWatchman implements MethodRule {
    public Statement apply(final Statement base, final FrameworkMethod method,
            Object target) {
        return new Statement() {
            @Override
            public void evaluate() throws Throwable {
                starting(method);
                try {
                    base.evaluate();
                    succeeded(method);
                } catch (AssumptionViolatedException e) {
                    throw e;
                } catch (Throwable e) {
                    failed(e, method);
                    throw e;
                } finally {
                    finished(method);
                }
            }
        };
    }

    /**
     * Invoked when a test method succeeds
     */
    public void succeeded(FrameworkMethod method) {
    }

    /**
     * Invoked when a test method fails
     */
    public void failed(Throwable e, FrameworkMethod method) {
    }

    /**
     * Invoked when a test method is about to start
     */
    public void starting(FrameworkMethod method) {
    }


    /**
     * Invoked when a test method finishes (whether passing or failing)
     */
    public void finished(FrameworkMethod method) {
    }
}