测试grails taglib

Question

Grails 1.1.我的自定义标签:

class MyTagLib {
  static namespace 'ct'
  def textField = {attrs ->
    def bean = attrs.remove('bean')
    def field = attrs.remove('field')
    attrs.name = field
    out << render(template:"/templates/textField", model:[
        required: !bean.constraints[field].nullable,
        display : bean["${bean.trainingExperience.type}"][field],
        theTag : g.textField(name : field, value : bean[field]),
        value : bean[field]
    ])
}

几乎所有我看到的taglib单元测试

AssertEquals "Some String", taglib.out.toString()

是否可以测试正确的模板是否使用模型中的正确值进行渲染？

MyTagLibTests

public class CareertracTagLibTests extends TagLibUnitTestCase{
  protected void setUp() {
    super.setUp()
    mockTagLib(FormTagLib)
    mockTagLib(RenderTagLib) 
    def g = new FormTagLib() // interpret "g" namespace as instances of FormTagLib
    tagLib.metaClass.g = g
    String.metaClass.encodeAsHTML = {org.codehaus.groovy.grails.plugins.codecs.HTMLCodec.encode(it)}
  }
  void TestTextField() {
    tagLib.textField([bean : mockBean, field : 'viewField'])
    def x = new RenderTagLib().render(template:"/templates/textField", 
      model:[required:false, 
              display:"view",
              // Snip 
            ])
    assertEquals tagLib.out, x.out // Or something like this
  }
} 

}

Answer 1

有了TagLibUnitTestCase您可以使用renderArgs测试相同的方式,你可以在调用render方法ControllerUnitTestCase.该renderArgs属性只是一个存储最后一次调用render动态方法的参数的映射.所以,在你的例子中你会想要这样的东西:

assertEquals "/templates/textField", renderArgs.template
assertFalse renderArgs.model.required

等等.