如何重置Groovy中的模拟静态方法？ [英] How do I reset a mocked static method in Groovy?

问题描述

在测试设置中我有以下几项：

  def originalPostAsXml = RestClient。& postAsXml 
 
 RestClient.metaClass.'static'.postAsXml = {
 String uriPath，String xml  - > 
 return 65536 
} 
  

并在测试清理中：

  RestClient.metaClass.'static'.postAsXml = originalPostAsXml 
  

但是，当下一次测试运行时，当它尝试执行RestClient.postAsXml时，它会运行到StackOverflowError：

  at groovy.lang.Closure.call（Closure.java:282）
  

它看起来像RestClient.postAsXml递归地指向自己。什么是重置模拟静态方法的正确方法？

解决方案

在单元测试中，我经常将元类设置为在 tearDown（）中使用code> null ，这似乎允许类在没有修改的情况下像原来一样工作。 >

例子：

  void setUp（）{
 super.setUp （）
 ServerInstanceSettings.metaClass.'static'.list = {
 def settings = [someSetting：'myOverride'] as ServerInstanceSettings 
 return [settings] 
} 
 } 
 
 void tearDown（）{
 super.tearDown（）
 ServerInstanceSettings.metaClass.'static'.list = null 
} 
  

如果您使用的是JUnit4，则可以使用 @AfterClass 也许更有意义。

I have the following in the test setup:

    def originalPostAsXml = RestClient.&postAsXml

    RestClient.metaClass.'static'.postAsXml = {
        String uriPath, String xml ->
        return 65536
    }

and in the test cleanup:

    RestClient.metaClass.'static'.postAsXml = originalPostAsXml

But when the next test runs, when it tries to execute RestClient.postAsXml, it runs into a StackOverflowError:

at groovy.lang.Closure.call(Closure.java:282)

It looks like RestClient.postAsXml recursively points to itself. What's the right way to reset a mocked-out static method?

解决方案

In a unit test, I often set the metaclass to null in the tearDown() which seems to allow the class to work as it did originally without my modifications.

example:

void setUp() {
    super.setUp()
    ServerInstanceSettings.metaClass.'static'.list = {
        def settings = [someSetting:'myOverride'] as ServerInstanceSettings
        return [settings]
    }
}

void tearDown() {
    super.tearDown()
    ServerInstanceSettings.metaClass.'static'.list = null
}

If you are using JUnit4 you can use @AfterClass instead in this case which makes more sense perhaps.

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