package org.junit.tests.validation;
   
   import static org.junit.Assert.assertEquals;
   
   import org.junit.BeforeClass;
   import org.junit.Test;
   import org.junit.runner.JUnitCore;
   import org.junit.runner.Request;
   import org.junit.runner.Result;
  
  public class ValidationTest {
      public static class WrongBeforeClass {
          @BeforeClass
          protected int a() {
              return 0;
          }
      }
  
      @Test
      public void initializationErrorIsOnCorrectClass() {
          assertEquals(WrongBeforeClass.class.getName(),
                  Request.aClass(WrongBeforeClass.class).getRunner().getDescription().getDisplayName());
      }
  
      public static class NonStaticBeforeClass {
          @BeforeClass
          public void before() {
          }
  
          @Test
          public void hereBecauseEveryTestClassNeedsATest() {
          }
      }
  
      @Test
      public void nonStaticBeforeClass() {
          Result result = JUnitCore.runClasses(NonStaticBeforeClass.class);
          assertEquals("Method before() should be static", result.getFailures().get(0).getMessage());
      }
  }