bindtagtests.java

spring的源代码

		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 3);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[2]));
	}

	public void testBindTagWithFieldErrorsAndDefaultMessageOnly() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		BindException errors = new ServletRequestDataBinder(tb, "tb").getErrors();
		errors.rejectValue("name", null, "message & 1");
		errors.rejectValue("name", null, "message2");
		errors.rejectValue("age", null, "message2");
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		tag.setHtmlEscape("true");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "name".equals(status.getExpression()));
		assertTrue("Correct value", "name1".equals(status.getValue()));
		assertTrue("Correct displayValue", "name1".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 2);
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
		assertTrue("Correct errorMessagesAsString",
				"message & 1 - message2".equals(status.getErrorMessagesAsString(" - ")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.age");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "age".equals(status.getExpression()));
		assertTrue("Correct value", new Integer(0).equals(status.getValue()));
		assertTrue("Correct displayValue", "0".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message2".equals(status.getErrorMessagesAsString(" - ")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.*");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 3);
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[2]));
	}

	public void testBindTagWithNestedFieldErrors() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		TestBean spouse = new TestBean();
		spouse.setName("name2");
		tb.setSpouse(spouse);
		BindException errors = new ServletRequestDataBinder(tb, "tb").getErrors();
		errors.rejectValue("spouse.name", "code1", "message1");
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		pc.setAttribute("myattr", "tb.spouse.name");
		tag.setPath("${myattr}");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "spouse.name".equals(status.getExpression()));
		assertTrue("Correct value", "name2".equals(status.getValue()));
		assertTrue("Correct displayValue", "name2".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(" - ")));
	}

	public void testPropertyExposing() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		BindException errors = new BindException(tb, "tb");
		errors.rejectValue("name", "code1", null, "message & 1");
		errors.rejectValue("name", "code2", null, "message2");
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);

		// test global property (should be null)
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertNull(tag.getProperty());

		// test property set (tb.name)
		tag.release();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("name", tag.getProperty());
	}

	public void testBindTagWithIndexedProperties() throws JspException {
		PageContext pc = createPageContext();
		IndexedTestBean tb = new IndexedTestBean();
		BindException errors = new ServletRequestDataBinder(tb, "tb").getErrors();
		errors.rejectValue("array[0]", "code1", "message1");
		errors.rejectValue("array[0]", "code2", "message2");
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.array[0]");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "array[0]".equals(status.getExpression()));
		assertTrue("Value is TestBean", status.getValue() instanceof TestBean);
		assertTrue("Correct value", "name0".equals(((TestBean) status.getValue()).getName()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 2);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 2);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
	}

	public void testBindTagWithMappedProperties() throws JspException {
		PageContext pc = createPageContext();
		IndexedTestBean tb = new IndexedTestBean();
		BindException errors = new ServletRequestDataBinder(tb, "tb").getErrors();
		errors.rejectValue("map[key1]", "code1", "message1");
		errors.rejectValue("map[key1]", "code2", "message2");
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.map[key1]");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "map[key1]".equals(status.getExpression()));
		assertTrue("Value is TestBean", status.getValue() instanceof TestBean);
		assertTrue("Correct value", "name4".equals(((TestBean) status.getValue()).getName()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 2);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 2);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
	}

	public void testBindTagWithIndexedPropertiesAndCustomEditor() throws JspException {
		PageContext pc = createPageContext();
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new ServletRequestDataBinder(tb, "tb");
		binder.registerCustomEditor(TestBean.class, null, new PropertyEditorSupport() {
			public String getAsText() {
				return "something";
			}
		});
		BindException errors = binder.getErrors();
		errors.rejectValue("array[0]", "code1", "message1");
		errors.rejectValue("array[0]", "code2", "message2");
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.array[0]");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "array[0]".equals(status.getExpression()));
		// because of the custom editor getValue() should return a String
		assertTrue("Value is TestBean", status.getValue() instanceof String);
		assertTrue("Correct value", "something".equals(status.getValue()));
	}

	public void testBindTagWithToStringAndHtmlEscaping() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.doctor");
		tag.setHtmlEscape("true");
		TestBean tb = new TestBean("somebody", 99);
		NestedTestBean ntb = new NestedTestBean("juergen&eva");
		tb.setDoctor(ntb);
		pc.getRequest().setAttribute("tb", tb);
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertEquals("doctor", status.getExpression());
		assertTrue(status.getValue() instanceof NestedTestBean);
		assertTrue(status.getDisplayValue().indexOf("juergen&eva") != -1);
	}

	public void testBindTagWithSetValueAndHtmlEscaping() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.someSet");
		tag.setHtmlEscape("true");
		pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertEquals("someSet", status.getExpression());
		assertTrue(status.getValue() instanceof Set);
	}

	public void testBindTagWithFieldButWithoutErrorsInstance() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertEquals("name", status.getExpression());
		assertEquals("juergen&eva", status.getValue());
	}

	public void testBindTagWithFieldButWithoutErrorsInstanceAndHtmlEscaping() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		tag.setHtmlEscape("true");
		pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertEquals("name", status.getExpression());
		assertEquals("juergen&eva", status.getValue());
	}

	public void testBindTagWithBeanButWithoutErrorsInstance() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		pc.getRequest().setAttribute("tb", new TestBean("juergen", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertNull(status.getExpression());
		assertNull(status.getValue());
	}

	public void testBindTagWithoutBean() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		try {
			tag.doStartTag();
			fail("Should have thrown JspException");
		}
		catch (JspException ex) {
			// expected
		}
	}


	public void testBindErrorsTagWithoutErrors() throws JspException {
		PageContext pc = createPageContext();
		BindException errors = new ServletRequestDataBinder(new TestBean(), "tb").getErrors();
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);
		BindErrorsTag tag = new BindErrorsTag();
		tag.setPageContext(pc);
		tag.setName("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.SKIP_BODY);
		assertTrue("Doesn't have errors variable", pc.getAttribute(BindErrorsTag.ERRORS_VARIABLE_NAME) == null);
	}

	public void testBindErrorsTagWithErrors() throws JspException {
		PageContext pc = createPageContext();
		BindException errors = new ServletRequestDataBinder(new TestBean(), "tb").getErrors();
		errors.reject("test", null, "test");
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);
		BindErrorsTag tag = new BindErrorsTag();
		tag.setPageContext(pc);
		tag.setName("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertTrue("Has errors variable", pc.getAttribute(BindErrorsTag.ERRORS_VARIABLE_NAME) == errors);
	}

	public void testBindErrorsTagWithoutBean() throws JspException {
		PageContext pc = createPageContext();
		BindErrorsTag tag = new BindErrorsTag();
		tag.setPageContext(pc);
		tag.setName("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.SKIP_BODY);
	}


	public void testNestedPathDoEndTag() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		tag.doStartTag();
		int returnValue = tag.doEndTag();
		assertEquals(Tag.EVAL_PAGE, returnValue);