英文:
Mockito. How to mock a static method with args for integration tests
问题
我使用mockito-core 5.4.0并尝试模拟带有参数的静态方法，但它不起作用。
public record TestObject(String test) {}public class MyClass {public static String staticMethod(TestObject obj) {// 执行一些逻辑}}
======================================
var mock = Mockito.mockStatic(MyClass.class)mock.when(() -> MyClass.staticMethod(any()).thenReturn("")
我想要从模拟的静态方法返回TestObject::test的值。例如，在我的代码深处：
var testObj = new TestObject("someTest");var res = MyClass.staticMethod(testObj);sout(res) // 这里我想看到: someTest
如何实现它？
英文:
I use mockito-core 5.4.0 and try to mock a static method with arguments, but it doesn't work.
public record TestObject(String test) {}public class MyClass {public static String staticMethod(TestObject obj) {// do some logic}}======================================var mock = Mockito.mockStatic(MyClass.class)mock.when(() -> MyClass.staticMethod(any()).thenReturn("")
And I'd want to return from mocked static method value of TestObject::test.
e.g. somewhere in deep of my code:
var testObj = new TestObject("someTest");var res = MyClass.staticMethod(testObj);sout(res) // here I'd want to see: someTest
How can I implement it?
答案1
得分: 0
你可以使用 thenAnswer 来完成它：
try (MockedStatic<MyClass> mock = Mockito.mockStatic(MyClass.class)) {mock.when(() -> MyClass.staticMethod(Mockito.any(TestObject.class))).thenAnswer((Answer<String>) invocation -> {TestObject arg = invocation.getArgument(0);return arg.test();});var testObj = new TestObject("someTest");var res = MyClass.staticMethod(testObj);System.out.println(res);}
它在这里有文档说明：https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#answer_stubs
英文:
You can use thenAnswer to acomplish it:
try (MockedStatic<MyClass> mock = Mockito.mockStatic(MyClass.class)) {mock.when(() -> MyClass.staticMethod(Mockito.any(TestObject.class))).thenAnswer((Answer<String>) invocation -> {TestObject arg = invocation.getArgument(0);return arg.test();});var testObj = new TestObject("someTest");var res = MyClass.staticMethod(testObj);System.out.println(res);}
its documented here: https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#answer_stubs
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