bindtagtests.java

spring的源代码

		assertEquals("", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	public void testNestedPathDoEndTagWithNesting() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		tag.doStartTag();

		NestedPathTag anotherTag = new NestedPathTag();
		anotherTag.setPageContext(pc);
		anotherTag.setPath("bar");
		anotherTag.doStartTag();
		anotherTag.doEndTag();

		assertEquals("foo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		tag.doEndTag();
		assertEquals("", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	public void testNestedPathDoStartTagInternal() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		int returnValue = tag.doStartTag();

		assertEquals(Tag.EVAL_BODY_INCLUDE, returnValue);
		assertEquals("foo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	public void testNestedPathDoStartTagInternalWithNesting() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		tag.doStartTag();
		assertEquals("foo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		NestedPathTag anotherTag = new NestedPathTag();
		anotherTag.setPageContext(pc);
		anotherTag.setPath("bar");
		anotherTag.doStartTag();

		assertEquals("foo.bar.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		NestedPathTag yetAnotherTag = new NestedPathTag();
		yetAnotherTag.setPageContext(pc);
		yetAnotherTag.setPath("boo");
		yetAnotherTag.doStartTag();

		assertEquals("foo.bar.boo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		yetAnotherTag.doEndTag();

		NestedPathTag andAnotherTag = new NestedPathTag();
		andAnotherTag.setPageContext(pc);
		andAnotherTag.setPath("boo2");
		andAnotherTag.doStartTag();

		assertEquals("foo.bar.boo2.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	public void testNestedPathWithBindTag() throws JspException {
		PageContext pc = createPageContext();
		BindException errors = new ServletRequestDataBinder(new TestBean(), "tb").getErrors();
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", errors);

		NestedPathTag nestedPathTag = new NestedPathTag();
		nestedPathTag.setPath("tb");
		nestedPathTag.setPageContext(pc);
		nestedPathTag.doStartTag();

		BindTag bindTag = new BindTag();
		bindTag.setPageContext(pc);
		bindTag.setPath("name");

		assertTrue("Correct doStartTag return value", bindTag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertEquals("tb.name", status.getPath());
		assertEquals("Correct field value", "", status.getDisplayValue());

		BindTag bindTag2 = new BindTag();
		bindTag2.setPageContext(pc);
		bindTag2.setPath("age");

		assertTrue("Correct doStartTag return value", bindTag2.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status2 = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status2 != null);
		assertEquals("tb.age", status2.getPath());
		assertEquals("Correct field value", "0", status2.getDisplayValue());

		bindTag2.doEndTag();

		BindStatus status3 = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertSame("Status matches previous status", status, status3);
		assertEquals("tb.name", status.getPath());
		assertEquals("Correct field value", "", status.getDisplayValue());

		bindTag.doEndTag();
		nestedPathTag.doEndTag();
	}

	public void testNestedPathWithBindTagWithIgnoreNestedPath() throws JspException {
		PageContext pc = createPageContext();
		BindException errors = new ServletRequestDataBinder(new TestBean(), "tb2").getErrors();
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb2", errors);

		NestedPathTag tag = new NestedPathTag();
		tag.setPath("tb");
		tag.setPageContext(pc);
		tag.doStartTag();

		BindTag bindTag = new BindTag();
		bindTag.setPageContext(pc);
		bindTag.setIgnoreNestedPath(true);
		bindTag.setPath("tb2.name");

		assertTrue("Correct doStartTag return value", bindTag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME);
		assertTrue("Has status variable", status != null);
		assertEquals("tb2.name", status.getPath());
	}

	public void testTransformTagCorrectBehavior() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", binder.getErrors());

		// execute the bind tag using the date property
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.date");
		bind.doStartTag();

		// transform stuff
		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		pc.setAttribute("date", tb.getDate());
		transform.setParent(bind);
		transform.setValue("${date}");
		transform.setVar("theDate");
		transform.doStartTag();

		assertNotNull(pc.getAttribute("theDate"));
		assertEquals(pc.getAttribute("theDate"), df.format(tb.getDate()));

		// try another time, this time using Strings
		bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		transform = new TransformTag();
		transform.setPageContext(pc);
		pc.setAttribute("string", "name");
		transform.setValue("${string}");
		transform.setParent(bind);
		transform.setVar("theString");
		transform.doStartTag();

		assertNotNull(pc.getAttribute("theString"));
		assertEquals(pc.getAttribute("theString"), "name");
	}

	public void testTransformTagWithHtmlEscape() throws JspException {
		// first set up the PageContext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", binder.getErrors());

		// try another time, this time using Strings
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		pc.setAttribute("string", "na<me");
		transform.setValue("${string}");
		transform.setParent(bind);
		transform.setVar("theString");
		transform.setHtmlEscape("true");
		transform.doStartTag();

		assertNotNull(pc.getAttribute("theString"));
		assertEquals(pc.getAttribute("theString"), "na&lt;me");
	}

	public void testTransformTagOutsideBindTag() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", binder.getErrors());

		// now try to execute the tag outside a bindtag
		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setVar("var");
		transform.setValue("bla");
		try {
			transform.doStartTag();
			fail("Tag can be executed outside BindTag");
		}
		catch (JspException e) {
			// this is ok!
		}

		// now try to execute the tag outside a bindtag, but inside a messageTag
		MessageTag message = new MessageTag();
		message.setPageContext(pc);
		transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setVar("var");
		transform.setValue("bla");
		transform.setParent(message);
		try {
			transform.doStartTag();
			fail("Tag can be executed outside BindTag and inside messagtag");
		}
		catch (JspException e) {
			// this is ok!
		}
	}

	public void testTransformTagNonExistingValue() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", binder.getErrors());

		// try with non-existing value
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setValue("${string2}");
		transform.setParent(bind);
		transform.setVar("theString2");
		transform.doStartTag();

		assertNull(pc.getAttribute("theString2"));
	}

	public void testTransformTagWithSettingOfScope() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindException.ERROR_KEY_PREFIX + "tb", binder.getErrors());

		// execute the bind tag using the date property
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.date");
		bind.doStartTag();

		// transform stuff
		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		pc.setAttribute("date", tb.getDate());
		transform.setParent(bind);
		transform.setValue("${date}");
		transform.setVar("theDate");
		transform.setScope("page");
		transform.doStartTag();

		transform.release();

		assertNotNull(pc.getAttribute("theDate"));
		assertEquals(pc.getAttribute("theDate"), df.format(tb.getDate()));

		// try another time, this time using Strings
		bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		transform = new TransformTag();
		transform.setPageContext(pc);
		pc.setAttribute("string", "name");
		pc.setAttribute("scopy", "page");
		transform.setValue("${string}");
		transform.setParent(bind);
		transform.setVar("theString");
		transform.setScope("${scopy}");
		transform.doStartTag();

		transform.release();

		assertNotNull(pc.getAttribute("theString"));
		assertEquals(pc.getAttribute("theString"), "name");
	}

}