使用 MXUnit 的模拟/存根组件

Question

我有一个名为 ComponentUnderTest.cfc 的组件，如下所示：

<cfcomponent output="false">
<cfset externalComponent = Component("Externalcomponent");

  <cffunction name="FunctionUnderTest" access="public"...>
     <cfset externalComponent.ExternalFunction()> 
  </cffunction>
</cfcomponent>

如何在 MXUnit 测试组件中模拟/存根 externalComponent.externFunction()：

<cfcomponent displayname="ComponentTester" extends="mxunit.framework.TestCase>

 <cffunction name="MockForExternalFunction">
   .....
 </cffunction>
 ??????
 <cffunction name=TestComponent>
     <cfset componentUnderTest = CreateObject("ComponentUnderTest")>
     ?????
     <cfset componentUnderTest.FunctionUnderTest()>  <!--- should call MockForExternalFunction --->
 </cffunction>
</cfcomponent>

Answer 1

您将必须将模拟的组件注入其中componentUnderTest以替换现有的组件。

你可以这样做：

// I took this lot from the docs Henry pointed you to: I'm not familiar with MXUnit's mocking framework, but this sounds right
mockedObjectWithMockedMethod = mock();
mockedObjectWithMockedMethod.ExternalFunction().returns(MockForExternalFunction());

function injectVariable(name, value){
    variables[name] = value;
}
componentUnderTest.injectVariable = injectVariable;
componentUnderTest.injectVariable("externalComponent", mockedObjectWithMockedMethod);

与此相关的东西MockForExternalFunction()只是提供了调用时返回的返回值ExternalFunction()，而不是调用它而不是ExternalFunction()。不过，这应该没问题。