BindTagTests.java 文件源码

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() {
        @Override
        public String getAsText() {
            return "something";
        }
    });
    Errors errors = binder.getBindingResult();
    errors.rejectValue("array[0]", "code1", "message1");
    errors.rejectValue("array[0]", "code2", "message2");
    pc.getRequest().setAttribute(BindingResult.MODEL_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, PageContext.REQUEST_SCOPE);
    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()));
}