1 package org.junit;

     2 

     3 import java.lang.annotation.ElementType;

     4 import java.lang.annotation.Retention;

     5 import java.lang.annotation.RetentionPolicy;

     6 import java.lang.annotation.Target;

     7 

     8 /**

     9  * <p>When writing tests, it is common to find that several tests need similar 

    10  * objects created before they can run. Annotating a <code>public void</code> method

    11  * with <code>&#064;Before</code> causes that method to be run before the {@link org.junit.Test} method.

    12  * The <code>&#064;Before</code> methods of superclasses will be run before those of the current class.</p>

    13  * 

    14  * Here is a simple example:

    15  * <pre>

    16  * public class Example {

    17  *    List empty;

    18  *    @Before public void initialize() {

    19  *       empty= new ArrayList();

    20  *    }

    21  *    @Test public void size() {

    22  *       ...

    23  *    }

    24  *    @Test public void remove() {

    25  *       ...

    26  *    }

    27  * }

    28  * </pre>

    29  * 

    30  * @see org.junit.BeforeClass

    31  * @see org.junit.After

    32  */

    33 @Retention(RetentionPolicy.RUNTIME)

    34 @Target(ElementType.METHOD)

    35 public @interface Before {

    36 }

    37