package com.atlassian.plugin.predicate;
   
   import com.atlassian.plugin.descriptors.AbstractModuleDescriptor;
   import com.atlassian.plugin.descriptors.MockUnusedModuleDescriptor;
   import junit.framework.TestCase;
   
   /**
    * Testing {@link ModuleDescriptorOfClassPredicate}
    */
  public class TestModuleDescriptorOfClassPredicate extends TestCase
  {
      private ModuleDescriptorPredicate moduleDescriptorPredicate;
  
      protected void setUp() throws Exception
      {
          moduleDescriptorPredicate = new ModuleDescriptorOfClassPredicate(ModuleDescriptorStubA.class);
      }
  
      protected void tearDown() throws Exception
      {
          moduleDescriptorPredicate = null;
      }
  
      public void testCannotCreateWithNullModuleDescritptorClassesArray()
      {
          try
          {
              new ModuleDescriptorOfClassPredicate((Class[]) null);
              fail("Constructor should have thrown illegal argument exception.");
          }
          catch (IllegalArgumentException e)
          {
              // noop
          }
      }
  
      public void testMatchesModuleWithModuleDescriptorClassExactlyMatchingClass()
      {
          assertTrue(moduleDescriptorPredicate.matches(new ModuleDescriptorStubA()));
      }
  
      public void testDoesNotMatchModuleWithModuleDescriptorClassExtendingButNotExactlyMatchingClass()
      {
          assertTrue(moduleDescriptorPredicate.matches(new ModuleDescriptorStubB()));
      }
  
      public void testDoesNotMatchModuleWithModuleDescriptorClassNotMatchingClass()
      {
          assertFalse(moduleDescriptorPredicate.matches(new MockUnusedModuleDescriptor()));
      }
  
      private static class ModuleDescriptorStubA extends AbstractModuleDescriptor
      {
          public Object getModule()
          {
              return null;
          }
      }
  
      private static class ModuleDescriptorStubB extends ModuleDescriptorStubA
      {
      }
  }