1 files changed, 35 insertions, 0 deletions
diff --git a/src/main/java/org/junit/BeforeClass.java b/src/main/java/org/junit/BeforeClass.java
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+++ b/src/main/java/org/junit/BeforeClass.java
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+package org.junit;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * <p>Sometimes several tests need to share computationally expensive setup
+ * (like logging into a database). While this can compromise the independence of 
+ * tests, sometimes it is a necessary optimization. Annotating a <code>public static void</code> no-arg method
+ * with <code>@BeforeClass</code> causes it to be run once before any of 
+ * the test methods in the class. The <code>@BeforeClass</code> methods of superclasses
+ * will be run before those the current class.</p>
+ * 
+ * For example:
+ * <pre>
+ * public class Example {
+ *    &#064;BeforeClass public static void onlyOnce() {
+ *       ...
+ *    }
+ *    &#064;Test public void one() {
+ *       ...
+ *    }
+ *    &#064;Test public void two() {
+ *       ...
+ *    }
+ * }
+ * </pre>
+ * @see org.junit.AfterClass
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.METHOD)
+public @interface BeforeClass {
+}