bindtestsuite.java

spring的源代码

		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		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 errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCode()));
		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 errorCodes", status.getErrorCodes().length == 3);
		assertTrue("Correct errorMessages", status.getErrorMessages().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]));
		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 {
		MockPageContext 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 {
		MockPageContext 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 {
		MockPageContext 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 {
		MockPageContext 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 {
		MockPageContext 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 testBindTagWithoutBean() throws JspException {
		MockPageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		try {
			tag.doStartTag();
			fail("Should have thrown JspException");
		}
		catch (JspException ex) {
			// expected
		}
	}

}