content: package ro.isdc.wro.manager.factory;
  
  import static org.junit.Assert.assertEquals;
  import static org.mockito.MockitoAnnotations.initMocks;
  
  import java.io.InputStream;
  import java.util.Properties;
  
  import javax.servlet.FilterConfig;
  import javax.servlet.ServletContext;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.mockito.Mock;
  import org.mockito.Mockito;
  import org.mockito.invocation.InvocationOnMock;
  import org.mockito.stubbing.Answer;
  
  import ro.isdc.wro.WroRuntimeException;
  import ro.isdc.wro.config.Context;
  import ro.isdc.wro.config.jmx.ConfigConstants;
  import ro.isdc.wro.config.jmx.WroConfiguration;
  import ro.isdc.wro.model.factory.ConfigurableModelFactory;
  import ro.isdc.wro.model.factory.XmlModelFactory;
  
  
  /**
   * @author Alex Objelean
   */
  public class TestDefaultWroManagerFactory {
    @Mock
    private HttpServletRequest request;
    @Mock
    private HttpServletResponse response;
    @Mock
    private FilterConfig filterConfig;
    @Mock
    private ServletContext servletContext;
    private DefaultWroManagerFactory victim;
  
    @Before
    public void setUp()
        throws Exception {
      initMocks(this);
      victim = DefaultWroManagerFactory.create(new WroConfiguration());
      Mockito.when(filterConfig.getServletContext()).thenReturn(servletContext);
      Mockito.when(servletContext.getResourceAsStream(Mockito.anyString())).then(createValidModelStreamAnswer());
      Context.set(Context.webContext(request, response, filterConfig));
    }
    
    @After
    public void tearDown() {
      Context.unset();
    }
  
    private Answer<InputStream> createValidModelStreamAnswer()
        throws Exception {
      return new Answer<InputStream>() {
        public InputStream answer(final InvocationOnMock invocation)
            throws Throwable {
          return ClassLoader.getSystemResourceAsStream("wro.xml");
        }
      };
    }
  
    @Test(expected = NullPointerException.class)
    public void cannotAcceptNullConfiguration() {
      final WroConfiguration config = null;
      DefaultWroManagerFactory.create(config);
    }
  
    @Test
    public void shouldCreateADefaultManagerFactory() {
      assertEquals(BaseWroManagerFactory.class, victim.getFactory().getClass());
    }
  
    @Test
    public void shouldCreateOverridenManagerFactory() {
      victim = new DefaultWroManagerFactory(new Properties()) {
        @Override
        protected WroManagerFactory newManagerFactory() {
          return new ConfigurableWroManagerFactory();
        }
      };
      assertEquals(ConfigurableWroManagerFactory.class, victim.getFactory().getClass());
    }
  
    @Test
    public void shouldCreateManagerFactory() {
      final WroConfiguration config = new WroConfiguration();
      config.setWroManagerClassName(NoProcessorsWroManagerFactory.class.getName());
      victim = DefaultWroManagerFactory.create(config);
      assertEquals(NoProcessorsWroManagerFactory.class, victim.getFactory().getClass());
    }
  
    @Test(expected = WroRuntimeException.class)
    public void cannotCreateInvalidConfiguredManagerFactory() {
      final WroConfiguration config = new WroConfiguration();
      config.setWroManagerClassName("invalid.class.name.ManagerFactory");
      victim = DefaultWroManagerFactory.create(config);
    }
  
    @Test
    public void shouldInvokeListenerMethods() {
      final WroManagerFactory mockManagerFactory = Mockito.mock(WroManagerFactory.class);
      victim = new DefaultWroManagerFactory(new Properties()) {
        @Override
        protected WroManagerFactory newManagerFactory() {
          return mockManagerFactory;
        }
      };
      victim.onCachePeriodChanged(0);
      Mockito.verify(mockManagerFactory).onCachePeriodChanged(0);
  
      victim.onModelPeriodChanged(0);
      Mockito.verify(mockManagerFactory).onModelPeriodChanged(0);
    }
  
    @Test(expected = NullPointerException.class)
    public void cannotAcceptNullProperty() {
      final Properties props = null;
      new DefaultWroManagerFactory(props);
    }
  
    @Test(expected = WroRuntimeException.class)
    public void cannotAcceptInvalidManagerClassConfiguredInProperties() {
      final Properties props = propsForWroManagerClassName("invalid");
      new DefaultWroManagerFactory(props);
    }
  
    @Test
    public void shouldLoadValidManagerClassConfiguredInProperties() {
      final Properties props = propsForWroManagerClassName(NoProcessorsWroManagerFactory.class.getName());
      final DefaultWroManagerFactory victim = new DefaultWroManagerFactory(props);
      assertEquals(NoProcessorsWroManagerFactory.class, victim.getFactory().getClass());
    }
  
    private Properties propsForWroManagerClassName(final String className) {
      final Properties props = new Properties();
      props.setProperty(ConfigConstants.managerFactoryClassName.name(), className);
      return props;
    }
  
    @Test
    public void shouldCreateOverridenManagerFactoryWhenManagerClassPropertyIsMissing() {
      victim = new DefaultWroManagerFactory(new Properties()) {
        @Override
        protected WroManagerFactory newManagerFactory() {
          return new ConfigurableWroManagerFactory();
        }
      };
      assertEquals(ConfigurableWroManagerFactory.class, victim.getFactory().getClass());
    }
  
    /**
     * Exceptional flow for issue751.
     */
    @Test(expected = WroRuntimeException.class)
    public void shouldFailWhenInvalidModelIsProvidedWhenUsingConfigurableWroManagerFactory() {
      useModelFactoryWithAlias("invalidModel");
    }
  
    /**
     * Happy flow for issue751.
     */
    @Test
    public void shouldUseValidModelIsProvidedWhenUsingConfigurableWroManagerFactory() {
      useModelFactoryWithAlias(XmlModelFactory.ALIAS);
    }
  
    private void useModelFactoryWithAlias(final String modelFactoryAlias) {
      final Properties properties = propsForWroManagerClassName(ConfigurableWroManagerFactory.class.getName());
      properties.setProperty(ConfigurableModelFactory.KEY, modelFactoryAlias);
      victim = new DefaultWroManagerFactory(properties);
      victim.create().getModelFactory().create();
    }
  }
  