content: /**
   * Copyright Alex Objelean
   */
  package ro.isdc.wro.model.group.processor;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  
  import java.io.IOException;
  import java.io.Reader;
  import java.io.Writer;
  import java.util.concurrent.Callable;
  
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  import ro.isdc.wro.WroRuntimeException;
  import ro.isdc.wro.config.Context;
  import ro.isdc.wro.config.ReadOnlyContext;
  import ro.isdc.wro.config.jmx.WroConfiguration;
  import ro.isdc.wro.config.support.ContextPropagatingCallable;
  import ro.isdc.wro.manager.callback.LifecycleCallbackRegistry;
  import ro.isdc.wro.manager.factory.BaseWroManagerFactory;
  import ro.isdc.wro.model.group.Inject;
  import ro.isdc.wro.model.resource.Resource;
  import ro.isdc.wro.model.resource.locator.factory.UriLocatorFactory;
  import ro.isdc.wro.model.resource.processor.ResourcePreProcessor;
  import ro.isdc.wro.model.resource.processor.decorator.CopyrightKeeperProcessorDecorator;
  import ro.isdc.wro.model.resource.processor.impl.js.JSMinProcessor;
  import ro.isdc.wro.util.WroTestUtils;
  
  
  /**
   * @author Alex Objelean
   * @created 12 Dec 2011
   */
  public class TestInjector {
    private Injector victim;
  
    @Before
    public void setUp() {
      Context.set(Context.standaloneContext());
      initializeValidInjector();
    }
  
    @Test(expected = NullPointerException.class)
    public void cannotAcceptNullMap() {
      victim = new Injector(null);
    }
  
    @Test
    public void shouldAcceptInjectInitializedManager() {
      initializeValidInjector();
    }
  
    private void initializeValidInjector() {
      victim = InjectorBuilder.create(new BaseWroManagerFactory()).build();
    }
  
    @Test(expected = WroRuntimeException.class)
    public void cannotInjectUnsupportedAndUnitializedType() {
      initializeValidInjector();
      final Object inner = new Object() {
        @Inject
        private Object object;
      };
      victim.inject(inner);
    }
  
    @Test
    public void shouldBeThreadSafe() throws Exception {
      initializeValidInjector();
      WroTestUtils.runConcurrently(new ContextPropagatingCallable<Void>(new Callable<Void>() {
        public Void call()
            throws Exception {
          victim.inject(new GroupsProcessor());
          return null;
        }
      }));
    }
  
    @Test
    public void shouldInjectSupportedType()
        throws Exception {
      initializeValidInjector();
      final Callable<?> inner = new Callable<Void>() {
        @Inject
        private LifecycleCallbackRegistry object;
  
        public Void call()
            throws Exception {
          Assert.assertNotNull(object);
          return null;
        }
      };
      victim.inject(inner);
      inner.call();
    }
  
    @Test
    public void shouldInjectContext()
        throws Exception {
      // Cannot reuse this part, because generic type is not inferred correctly at runtime
      final Callable<?> inner = new Callable<Void>() {
        @Inject
        private ReadOnlyContext object;
  
        public Void call()
            throws Exception {
          assertNotNull(object);
          return null;
        }
      };
      victim.inject(inner);
      inner.call();
    }
  
    @Test(expected = WroRuntimeException.class)
    public void canInjectContextOutsideOfContextScope()
        throws Exception {
      // remove the context explicitly
      Context.unset();
      shouldInjectContext();
    }
  
    @Test
    public void shouldInjectWroConfiguration()
        throws Exception {
      final Callable<?> inner = new Callable<Void>() {
        @Inject
        private WroConfiguration object;
  
        public Void call()
            throws Exception {
          Assert.assertNotNull(object);
          return null;
        }
      };
      victim.inject(inner);
      inner.call();
    }
  
    private class TestProcessor
        extends JSMinProcessor {
      @Inject
      private ReadOnlyContext context;
    }
  
    @Test
    public void shouldInjectDecoratedProcessor() {
      final TestProcessor testProcessor = new TestProcessor();
      final ResourcePreProcessor processor = CopyrightKeeperProcessorDecorator.decorate(testProcessor);
  
      final Injector injector = InjectorBuilder.create(new BaseWroManagerFactory()).build();
      injector.inject(processor);
      assertNotNull(testProcessor.context);
    }
  
    @Test(expected = WroRuntimeException.class)
    public void shouldNotInjectUnsupportedAndInitializedTypes() {
      final String initialValue = "initial";
      final Callable<?> object = new Callable<Void>() {
        @Inject
        String unsupportedInitializedType = initialValue;
  
        public Void call()
            throws Exception {
          assertEquals(initialValue, unsupportedInitializedType);
          return null;
        }
      };
      victim.inject(object);
    }
  
    @Test
    public void shouldNotChangeAfterInjectionSupportedNotNullObject()
        throws Exception {
      new Callable<Void>() {
        @Inject
        private final ResourcePreProcessor inner = new ResourcePreProcessor() {
          public void process(final Resource resource, final Reader reader, final Writer writer)
              throws IOException {
          }
        };
  
        public Void call()
            throws Exception {
          Assert.assertNotNull(inner);
          return null;
        }
      }.call();
    }
  
    @Test(expected = WroRuntimeException.class)
    public void cannotInjectUnsupportedInnerObject()
        throws Exception {
      final Callable<?> outer = new Callable<Void>() {
        @Inject
        private final Callable<?> inner = new Callable<Void>() {
          @Inject
          UriLocatorFactory locatorFactory;
  
          public Void call()
              throws Exception {
            Assert.assertNotNull(locatorFactory);
            return null;
          }
        };
  
        public Void call()
            throws Exception {
          inner.call();
          return null;
        }
      };
      victim.inject(outer);
      outer.call();
    }
  
    @Test(expected = WroRuntimeException.class)
    public void cannotInjectOutsideOfContext() {
      Context.unset();
      victim.inject(new TestProcessor());
    }
  
    @After
    public void tearDown() {
      Context.unset();
    }
  }
  