xmlbeanfactorytestsuite.java

Java/J2EE application framework based on [Expert One-on-One J2EE Design and Development] by Rod John

		HasMap hasMap = (HasMap) xbf.getBean("integerArray");
		assertTrue(hasMap.getIntegerArray().length == 3);
		assertTrue(hasMap.getIntegerArray()[0].intValue() == 0);
		assertTrue(hasMap.getIntegerArray()[1].intValue() == 1);
		assertTrue(hasMap.getIntegerArray()[2].intValue() == 2);
	}
	*/

	public void testInitMethodIsInvoked() throws Exception {
		InputStream is = getClass().getResourceAsStream("initializers.xml");
		XmlBeanFactory xbf = new XmlBeanFactory(is);
		DoubleInitializer in = (DoubleInitializer) xbf.getBean("init-method1");
		// Initializer should have doubled value
		assertEquals(14, in.getNum());
	}

	/**
	 * Test that if a custom initializer throws an exception, it's handled correctly
	 */
	public void testInitMethodThrowsException() {
		InputStream is = getClass().getResourceAsStream("initializers.xml");
		XmlBeanFactory xbf = new XmlBeanFactory(is);
		try {
			xbf.getBean("init-method2");
			fail();
		}
		catch (BeanCreationException ex) {
			assertTrue(ex.getCause() instanceof ServletException);
		}
	}

	public void testNoSuchInitMethod() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("initializers.xml", getClass()));
		try {
			xbf.getBean("init-method3");
			fail();
		}
		catch (FatalBeanException ex) {
			// check message is helpful
			assertTrue(ex.getMessage().indexOf("initializers.xml") != -1);
			assertTrue(ex.getMessage().indexOf("init-method3") != -1);
			assertTrue(ex.getMessage().indexOf("init") != -1);
		}
	}

	/**
	 * Check that InitializingBean method is called first.
	 */
	public void testInitializingBeanAndInitMethod() throws Exception {
		InitAndIB.constructed = false;
		InputStream is = getClass().getResourceAsStream("initializers.xml");
		XmlBeanFactory xbf = new XmlBeanFactory(is);
		assertFalse(InitAndIB.constructed);
		xbf.preInstantiateSingletons();
		assertFalse(InitAndIB.constructed);
		InitAndIB iib = (InitAndIB) xbf.getBean("init-and-ib");
		assertTrue(InitAndIB.constructed);
		assertTrue(iib.afterPropertiesSetInvoked && iib.initMethodInvoked);
		assertTrue(!iib.destroyed && !iib.customDestroyed);
		xbf.destroySingletons();
		assertTrue(iib.destroyed && iib.customDestroyed);
		xbf.destroySingletons();
		assertTrue(iib.destroyed && iib.customDestroyed);
	}

	/**
	 * Check that InitializingBean method is called first.
	 */
	public void testDefaultLazyInit() throws Exception {
		InitAndIB.constructed = false;
		InputStream is = getClass().getResourceAsStream("default-lazy-init.xml");
		XmlBeanFactory xbf = new XmlBeanFactory(is);
		assertFalse(InitAndIB.constructed);
		xbf.preInstantiateSingletons();
		assertTrue(InitAndIB.constructed);
		try {
			xbf.getBean("lazy-and-bad");
		}
		catch (BeanCreationException ex) {
			assertTrue(ex.getCause() instanceof ServletException);
		}
	}

	public void testNoSuchXmlFile() throws Exception {
		try {
			XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("missing.xml", getClass()));
			fail("Shouldn't create factory from missing XML");
		}
		catch (BeanDefinitionStoreException ex) {
			// Ok
			// TODO Check that the error message includes filename
		}
	}

	public void testInvalidXmlFile() throws Exception {
		try {
			XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("invalid.xml", getClass()));
			fail("Shouldn't create factory from invalid XML");
		}
		catch (BeanDefinitionStoreException ex) {
			// Ok
			// TODO Check that the error message includes filename
		}
	}

	public void testUnsatisfiedObjectDependencyCheck() throws Exception {
		try {
			XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("unsatisfiedObjectDependencyCheck.xml", getClass()));
			DependenciesBean a = (DependenciesBean) xbf.getBean("a");
			fail();
		}
		catch (UnsatisfiedDependencyException ex) {
			// Ok
			// What if many dependencies are unsatisfied?
			//assertTrue(ex.getMessage().indexOf("spouse"))
		}
	}

	public void testUnsatisfiedSimpleDependencyCheck() throws Exception {
		try {
			XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("unsatisfiedSimpleDependencyCheck.xml", getClass()));
			DependenciesBean a = (DependenciesBean) xbf.getBean("a");
			fail();
		}
		catch (UnsatisfiedDependencyException ex) {
			// Ok
			// What if many dependencies are unsatisfied?
			//assertTrue(ex.getMessage().indexOf("spouse"))
		}
	}

	public void testSatisfiedObjectDependencyCheck() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("satisfiedObjectDependencyCheck.xml", getClass()));
		DependenciesBean a = (DependenciesBean) xbf.getBean("a");
		assertNotNull(a.getSpouse());
	}

	public void testSatisfiedSimpleDependencyCheck() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("satisfiedSimpleDependencyCheck.xml", getClass()));
		DependenciesBean a = (DependenciesBean) xbf.getBean("a");
		assertEquals(a.getAge(), 33);
	}

	public void testUnsatisfiedAllDependencyCheck() throws Exception {
		try {
			XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("unsatisfiedAllDependencyCheckMissingObjects.xml", getClass()));
			DependenciesBean a = (DependenciesBean) xbf.getBean("a");
			fail();
		}
		catch (UnsatisfiedDependencyException ex) {
			// Ok
			// What if many dependencies are unsatisfied?
			//assertTrue(ex.getMessage().indexOf("spouse"))
		}
	}

	public void testSatisfiedAllDependencyCheck() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("satisfiedAllDependencyCheck.xml", getClass()));
		DependenciesBean a = (DependenciesBean) xbf.getBean("a");
		assertEquals(a.getAge(), 33);
		assertNotNull(a.getName());
		assertNotNull(a.getSpouse());
	}

	public void testAutowire() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("autowire.xml", getClass()));
		TestBean spouse = new TestBean("kerry", 0);
		xbf.registerSingleton("spouse", spouse);
		doTestAutowire(xbf);
	}

	public void testAutowireWithParent() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("autowire.xml", getClass()));
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("name", "kerry");
		lbf.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class, pvs));
		xbf.setParentBeanFactory(lbf);
		doTestAutowire(xbf);
	}

	private void doTestAutowire(XmlBeanFactory xbf) throws Exception {
		DependenciesBean rod1 = (DependenciesBean) xbf.getBean("rod1");
		TestBean kerry = (TestBean) xbf.getBean("spouse");
		// should have been autowired
		assertEquals(kerry, rod1.getSpouse());

		DependenciesBean rod1a = (DependenciesBean) xbf.getBean("rod1a");
		// should have been autowired
		assertEquals(kerry, rod1a.getSpouse());

		DependenciesBean rod2 = (DependenciesBean) xbf.getBean("rod2");
		// should have been autowired
		assertEquals(kerry, rod2.getSpouse());

		ConstructorDependenciesBean rod3 = (ConstructorDependenciesBean) xbf.getBean("rod3");
		IndexedTestBean other = (IndexedTestBean) xbf.getBean("other");
		// should have been autowired
		assertEquals(kerry, rod3.getSpouse1());
		assertEquals(kerry, rod3.getSpouse2());
		assertEquals(other, rod3.getOther());

		ConstructorDependenciesBean rod3a = (ConstructorDependenciesBean) xbf.getBean("rod3a");
		// should have been autowired
		assertEquals(kerry, rod3a.getSpouse1());
		assertEquals(kerry, rod3a.getSpouse2());
		assertEquals(other, rod3a.getOther());

		try {
			ConstructorDependenciesBean rod4 = (ConstructorDependenciesBean) xbf.getBean("rod4");
			fail("Should not have thrown FatalBeanException");
		}
		catch (FatalBeanException ex) {
			// expected
		}

		DependenciesBean rod5 = (DependenciesBean) xbf.getBean("rod5");
		// Should not have been autowired
		assertNull(rod5.getSpouse());

		BeanFactory appCtx = (BeanFactory) xbf.getBean("childAppCtx");
		assertTrue(appCtx.containsBean("rod1"));
		assertTrue(appCtx.containsBean("jenny"));
	}

	public void testAutowireWithDefault() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("default-autowire.xml", getClass()));

		DependenciesBean rod1 = (DependenciesBean) xbf.getBean("rod1");
		// should have been autowired
		assertNotNull(rod1.getSpouse());
		assertTrue(rod1.getSpouse().getName().equals("Kerry"));

		DependenciesBean rod2 = (DependenciesBean) xbf.getBean("rod2");
		// should have been autowired
		assertNotNull(rod2.getSpouse());
		assertTrue(rod2.getSpouse().getName().equals("Kerry"));

		try {
			DependenciesBean rod3 = (DependenciesBean) xbf.getBean("rod3");
			fail("Should have thrown UnsatisfiedDependencyException");
		}
		catch (UnsatisfiedDependencyException ex) {
			// expected
		}
	}

	public void testAutowireByConstructor() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("constructor-arg.xml", getClass()));
		ConstructorDependenciesBean rod1 = (ConstructorDependenciesBean) xbf.getBean("rod1");
		TestBean kerry = (TestBean) xbf.getBean("kerry2");
		// should have been autowired
		assertEquals(kerry, rod1.getSpouse1());
		assertEquals(0, rod1.getAge());
		assertEquals(null, rod1.getName());

		ConstructorDependenciesBean rod2 = (ConstructorDependenciesBean) xbf.getBean("rod2");
		TestBean kerry1 = (TestBean) xbf.getBean("kerry1");
		TestBean kerry2 = (TestBean) xbf.getBean("kerry2");
		// should have been autowired
		assertEquals(kerry2, rod2.getSpouse1());
		assertEquals(kerry1, rod2.getSpouse2());
		assertEquals(0, rod2.getAge());
		assertEquals(null, rod2.getName());

		ConstructorDependenciesBean rod = (ConstructorDependenciesBean) xbf.getBean("rod3");
		IndexedTestBean other = (IndexedTestBean) xbf.getBean("other");
		// should have been autowired
		assertEquals(kerry, rod.getSpouse1());
		assertEquals(kerry, rod.getSpouse2());
		assertEquals(other, rod.getOther());
		assertEquals(0, rod.getAge());
		assertEquals(null, rod.getName());

		ConstructorDependenciesBean rod4 = (ConstructorDependenciesBean) xbf.getBean("rod4");
		// should have been autowired
		assertEquals(kerry, rod.getSpouse1());
		assertEquals(kerry, rod.getSpouse2());
		assertEquals(other, rod.getOther());
		assertEquals(0, rod.getAge());
		assertEquals(null, rod.getName());
	}

	public void testAutowireByConstructorWithSimpleValues() throws Exception {
		XmlBeanFactory xbf = new XmlBeanFactory(new ClassPathResource("constructor-arg.xml", getClass()));

		ConstructorDependenciesBean rod5 = (ConstructorDependenciesBean) xbf.getBean("rod5");
		TestBean kerry1 = (TestBean) xbf.getBean("kerry1");
		TestBean kerry2 = (TestBean) xbf.getBean("kerry2");
		IndexedTestBean other = (IndexedTestBean) xbf.getBean("other");
		// should have been autowired
		assertEquals(kerry2, rod5.getSpouse1());
		assertEquals(kerry1, rod5.getSpouse2());
		assertEquals(other, rod5.getOther());
		assertEquals(99, rod5.getAge());
		assertEquals("myname", rod5.getName());

		DerivedConstructorDependenciesBean rod6 = (DerivedConstructorDependenciesBean) xbf.getBean("rod6");
		// should have been autowired
		assertTrue(rod6.initialized);
		assertTrue(!rod6.destroyed);
		assertEquals(kerry2, rod6.getSpouse1());
		assertEquals(kerry1, rod6.getSpouse2());
		assertEquals(other, rod6.getOther());
		assertEquals(0, rod6.getAge());
		assertEquals(null, rod6.getName());

		xbf.destroySingletons();