formcontrollertests.java

spring的源代码

		mv.getViewName().equals(formView));
		
		TestBean person = (TestBean) mv.getModel().get(TestController.BEAN_NAME);
		assertTrue("model is non null", person != null);
		
		// yes, but it was rejected after binding by the validator
		assertTrue("bean name bound ok", person.getName().equals(name));
		assertTrue("bean age is default", person.getAge() == TestController.DEFAULT_AGE);
		Errors errors = (Errors) mv.getModel().get(BindException.ERROR_KEY_PREFIX + mc.getCommandName());
		assertTrue("errors returned in model", errors != null);
		assertTrue("3 errors", errors.getErrorCount() == 3);
		FieldError fe = errors.getFieldError("age");
		assertTrue("Saved invalid value", fe.getRejectedValue().equals(age));
		assertTrue("Correct field", fe.getField().equals("age"));
		
		// raised by first validator
		fe = errors.getFieldError("name");
		assertTrue("Saved invalid value", fe.getRejectedValue().equals(name));
		assertTrue("Correct field", fe.getField().equals("name"));
		assertTrue("Correct validation code: expected '" +TestValidator.TOOSHORT + "', not '" 
		+ fe.getCode() + "'", fe.getCode().equals(TestValidator.TOOSHORT));

		// raised by second validator
		ObjectError oe = errors.getGlobalError();
		assertEquals("test", oe.getCode());
		assertEquals("testmessage", oe.getDefaultMessage());
	}

	public void testSessionController() throws Exception {
		String formView = "f";
		String successView = "s";

		TestController mc = new TestController();
		mc.setFormView(formView);
		mc.setSuccessView(successView);
		mc.setSessionForm(true);

		// first request: GET form
		HttpServletRequest request1 = new MockHttpServletRequest("GET", "/welcome.html");
		HttpServletResponse response1 = new MockHttpServletResponse();
		ModelAndView mv1 = mc.handleRequest(request1, response1);
		assertTrue("returned correct view name", mv1.getViewName().equals(formView));
		TestBean person = (TestBean) mv1.getModel().get(TestController.BEAN_NAME);
		assertTrue("model is non null", person != null);
		assertTrue("Bean age default ok", person.getAge() == TestController.DEFAULT_AGE);

		// second request, using same session: POST submit
		MockHttpServletRequest request2 = new MockHttpServletRequest("POST", "/welcome.html");
		request2.setSession(request1.getSession(false));
		HttpServletResponse response2 = new MockHttpServletResponse();
		ModelAndView mv2 = mc.handleRequest(request2, response2);
		assertTrue("returned correct view name", mv2.getViewName().equals(successView));
		TestBean person2 = (TestBean) mv2.getModel().get(TestController.BEAN_NAME);
		assertTrue("model is same object", person == person2);
	}

	public void testDefaultInvalidSubmit() throws Exception {
		String formView = "f";
		String successView = "s";

		TestController mc = new TestController();
		mc.setFormView(formView);
		mc.setSuccessView(successView);
		mc.setSessionForm(true);

		// invalid request: POST submit
		MockHttpServletRequest request = new MockHttpServletRequest("POST", "/welcome.html");
		HttpServletResponse response = new MockHttpServletResponse();
		ModelAndView mv = mc.handleRequest(request, response);
		assertTrue("returned correct view name", mv.getViewName().equals(successView));
		TestBean person = (TestBean) mv.getModel().get(TestController.BEAN_NAME);
		assertTrue("model is non null", person != null);
	}

	public void testSpecialInvalidSubmit() throws Exception {
		String formView = "f";
		String successView = "s";

		TestController mc = new TestController() {
			protected ModelAndView handleInvalidSubmit(HttpServletRequest request, HttpServletResponse response)
			    throws ServletException, IOException {
				throw new ServletException("invalid submit");
			}
		};
		mc.setFormView(formView);
		mc.setSuccessView(successView);
		mc.setSessionForm(true);

		// invalid request: POST submit
		MockHttpServletRequest request = new MockHttpServletRequest("POST", "/welcome.html");
		HttpServletResponse response = new MockHttpServletResponse();
		try {
			mc.handleRequest(request, response);
			fail("Should have thrown ServletException");
		}
		catch (ServletException ex) {
			// expected
		}
	}

	public void testSubmitWithIndexedProperties() throws Exception {
		String formView = "fred";
		String successView = "tony";

		SimpleFormController mc = new SimpleFormController();
		mc.setCommandClass(IndexedTestBean.class);
		mc.setFormView(formView);
		mc.setSuccessView(successView);

		MockHttpServletRequest request = new MockHttpServletRequest("POST", "/foo.html");
		request.addParameter("array[0].name", "name3");
		request.addParameter("array[1].age", "name2");
		request.addParameter("list[0].name", "name1");
		request.addParameter("list[1].age", "name0");
		request.addParameter("list[2]", "listobj");
		request.addParameter("map[key1]", "mapobj1");
		request.addParameter("map[key3]", "mapobj2");
		HttpServletResponse response = new MockHttpServletResponse();
		ModelAndView mv = mc.handleRequest(request, response);
		assertTrue("returned correct view name: expected '" + formView + "', not '" + mv.getViewName() + "'",
		mv.getViewName().equals(formView));

		IndexedTestBean bean = (IndexedTestBean) mv.getModel().get(mc.getCommandName());
		assertTrue("model is non null", bean != null);
		assertEquals("name3", bean.getArray()[0].getName());
		assertEquals("name1", ((TestBean) bean.getList().get(0)).getName());
		Errors errors = (Errors) mv.getModel().get(BindException.ERROR_KEY_PREFIX + mc.getCommandName());
		assertTrue("errors returned in model", errors != null);
		assertTrue("2 errors", errors.getErrorCount() == 2);
		FieldError fe1 = errors.getFieldError("array[1].age");
		assertTrue("Saved invalid value", fe1.getRejectedValue().equals("name2"));
		assertTrue("Correct field", fe1.getField().equals("array[1].age"));
		FieldError fe2 = errors.getFieldError("list[1].age");
		assertTrue("Saved invalid value", fe2.getRejectedValue().equals("name0"));
		assertTrue("Correct field", fe2.getField().equals("list[1].age"));

		assertEquals("listobj", bean.getList().get(2));
		assertEquals("mapobj1", bean.getMap().get("key1"));
		assertEquals("mapobj2", bean.getMap().get("key3"));
	}

	public void testFormChangeRequest() throws Exception {
		String formView = "fred";
		String successView = "tony";
    final Float myFloat = new Float("123.45");

		TestController mc = new TestController() {
			protected boolean isFormChangeRequest(HttpServletRequest request) {
				return (request.getParameter("formChange") != null);
			}

			protected void onFormChange(HttpServletRequest request, HttpServletResponse response, Object command) {
				assertNotNull("Command should not be null", command);
				assertEquals("Incorrect command class", TestBean.class, command.getClass());
				((TestBean)command).setMyFloat(myFloat);
			}
		};
		mc.setFormView(formView);
		mc.setSuccessView(successView);

		MockHttpServletRequest request = new MockHttpServletRequest("POST", "/foo.html");
		request.addParameter("name", "Rod");
		request.addParameter("age", "99");
		request.addParameter("formChange", "true");
		HttpServletResponse response = new MockHttpServletResponse();
		ModelAndView mv = mc.handleRequest(request, response);
		assertTrue("returned correct view name: expected '" + formView + "', not '" + mv.getViewName() + "'",
		mv.getViewName().equals(formView));

		TestBean person = (TestBean) mv.getModel().get(mc.getCommandName());
		assertTrue("model is non null", person != null);
		assertTrue("bean name bound ok", person.getName().equals("Rod"));
		assertTrue("bean age is 99", person.getAge() == 99);
		assertEquals("Command property myFloat not updated in onFormChange", myFloat, person.getMyFloat());
		Errors errors = (Errors) mv.getModel().get(BindException.ERROR_KEY_PREFIX + mc.getCommandName());
		assertTrue("errors returned in model", errors != null);
		assertTrue("No errors", errors.getErrorCount() == 0);
	}

	public void testFormControllerInWebApplicationContext() {
		StaticWebApplicationContext ctx = new StaticWebApplicationContext();
		ctx.setServletContext(new MockServletContext());
		RefController mc = new RefController();
		mc.setApplicationContext(ctx);
		try {
			mc.invokeWebSpecificStuff();
		}
		catch (IllegalStateException ex) {
			fail("Shouldn't have thrown exception: " + ex.getMessage());
		}
	}

	public void testFormControllerInNonWebApplicationContext() {
		StaticApplicationContext ctx = new StaticApplicationContext();
		RefController mc = new RefController();
		mc.setApplicationContext(ctx);
		try {
			mc.invokeWebSpecificStuff();
			fail("Should have thrown IllegalStateException");
		}
		catch (IllegalStateException ex) {
			// expected
		}
	}


	private static class TestValidator implements Validator {

		public static String TOOSHORT = "tooshort";

		public boolean supports(Class clazz) { return true; }

		public void validate(Object obj, Errors errors) {
			TestBean tb = (TestBean) obj;
			if (tb.getName() == null || "".equals(tb.getName()))
				errors.rejectValue("name", "needname", null, "need name");
			else if (tb.getName().length() < 5)
				errors.rejectValue("name", TOOSHORT, null, "need full name");
		}
	}


	private static class TestValidator2 implements Validator {

		public static String TOOSHORT = "tooshort";

		public boolean supports(Class clazz) { return true; }

		public void validate(Object obj, Errors errors) {
			errors.reject("test", "testmessage");
		}
	}


	private static class TestController extends SimpleFormController {

		public static String BEAN_NAME = "person";

		public static int DEFAULT_AGE = 52;

		public TestController() {
			setCommandClass(TestBean.class);
			setCommandName(BEAN_NAME);
		}

		protected Object formBackingObject(HttpServletRequest request) throws ServletException {
			TestBean person = new TestBean();
			person.setAge(DEFAULT_AGE);
			return person;
		}

		protected boolean isFormChangeRequest(HttpServletRequest request) {
			return (request.getParameter("formChange") != null);
		}
	}


	private static class TestControllerWithCustomOnSubmit extends TestController {

		protected ModelAndView onSubmit(Object command) throws Exception {
			return new ModelAndView("mySuccess");
		}
	}


	private static class RefController extends SimpleFormController {
		
		final String NUMBERS_ATT = "NUMBERS";
		
		static final int[] NUMBERS = { 1, 2, 3, 4 };
		
		int refDataCount;

		public RefController() {
			setCommandClass(TestBean.class);
		}
		
		protected Map referenceData(HttpServletRequest request) {
			++refDataCount;
			Map m = new HashMap();
			m.put(NUMBERS_ATT, NUMBERS);
			return m;
		}

		public void invokeWebSpecificStuff() {
			getTempDir();
		}
	}

}