Before


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   *    &#064;Before public void initialize() {
19   *       empty= new ArrayList();
20   *    }
21   *    &#064;Test public void size() {
22   *       ...
23   *    }
24   *    &#064;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  
38

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