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java - 模拟递归类

问题描述

使用 Spring 2.0.3.RELEASE、JUnit Jupiter 5.7.0、Mockito 3.3.3

尝试测试 Class01 类的方法 method01：

public class Class01 {

 private RestConnector con;
 
 public Class01(){
  con = RestConnector.getInstance();
 }

 public Response method01(String x) {
  Class01 example = new Class01();
  String x = example.isAuthenticated();
  
  // more stuff after this
  
 }
 
 public String isAuthenticated() throws IOException {
  // I do stuff
  return "a string";
 }

}

在测试课上试过

public class Class01Test{

 @Mock private Class01 class01Mock;
 
 @Spy @InjectMocks private Class01 class01;

 @Test
 public void test() throws Throwable {
  
  doReturn("I returned").when(class01).  ??? stuck here .. always goes into the isAuthenticated method
  Response result = class01.method01("a string");
 }

}

目前测试总是运行真正的方法isAuthenticated。如何为方法method01中的字段示例设置模拟，以便执行跳过进入方法isAuthenticated？

标签： javajunitmockitojunit5

解决方案

尝试测试 Class01 类的方法 method01

那么你就不需要模拟了。

 @Test
 public void test() throws Throwable {
  Class01 c = new Class01();

  Response expected = ... ;
  assertEquals(c.method01("input"), expected);
 }

如果要将行为注入example变量，则需要将其移动到字段

public class Class01 {

 private RestConnector con;
 private Class01 inner;
 
 public Class01(){
  con = RestConnector.getInstance();
 }

 Class01(Class01 c) {
   this();
   this.inner = c;
 }

 public Response method01(String x) {
  String x = inner.isAuthenticated();
  
  // more stuff after this
  
 }

连同一个模拟

@RunWith(MockitoJunitRunner.class)
public class Class01Test{

 @Mock Class01 class01Mock;

 @Test
 public void test() throws Throwable {
  Response expected = ... ;
  when(class01Mock.isAuthenticated()).thenReture(expected); ... // TODO: Setup  
 
  Class01 c = new Class01(class01Mock); // pass in the mock
  
  assertEquals(c.method01("input"), expected);
 }

但是，当您似乎只需要时，不清楚为什么需要同一类的嵌套对象this.isAuthenticated()

理想情况下，您还可以模拟RestConnector

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