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thanikonAdobe Employee
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April 14, 2024
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How to Mock Static method of Util class in Service Implementation

  • April 14, 2024
  • 4 replies
  • 6325 views

Hi Team,

 

I have a git repository(Repo A) which has dependent on other main repository (Repo B). In Repo A we have a service implementation. In Repo B we have common code, here we have a util class and it has a static methods. We are calling these static methods from Repo B in Repo A. Now we are writing the Junit implementation for service class in Repo A. I am trying to mock this static method as mentioned below. Mockito.mockStatic(Utils.class); Mockito.when(Utils.getString()).thenReturn("Mocked string"); . i have added dependencies in my Repo A core POM and parent POM files.

 

I am facing issue i am not able to use the static method. I am seeing error "Cannot resolve method 'mockStatic' in 'Mockito'". Can someone help me on this issue. Your help is much appreciated.

 

https://sourcedcode.com/blog/aem/junit/junit5/mocking-static-methods-in-junit5 

 

 

 

Thanks,

Praveena.

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Best answer by Mahedi_Sabuj

You can check the below community post
https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/junit-for-accesscontrolutil-getusermanager/m-p/665352#M166512 

Additionally, you can explore the GitHub commit where we've mocked the HttpClient.newBuilder static method. https://github.com/MahediSabuj/aem-demo/commit/677d316157b98757490d59fa723ea77602127405 

4 replies

Mahedi_Sabuj
Community Advisor
Mahedi_SabujCommunity AdvisorAccepted solution
Community Advisor
April 14, 2024

You can check the below community post
https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/junit-for-accesscontrolutil-getusermanager/m-p/665352#M166512 

Additionally, you can explore the GitHub commit where we've mocked the HttpClient.newBuilder static method. https://github.com/MahediSabuj/aem-demo/commit/677d316157b98757490d59fa723ea77602127405 

Mahedi Sabuj
    sravs
    Community Advisor
    sravsCommunity Advisor
    Community Advisor
    April 15, 2024

    Hi @thanikon , Please make sure you are using latest version of Junit and mockito dependencies.
    MockedStatic was introduced in mockito 3.4.3. If your mockito version is previous version of that it won't work. 

    Please try with below,

    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-api</artifactId>
        <version>5.9.3</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-engine</artifactId>
        <version>5.9.3</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.platform</groupId>
        <artifactId>junit-platform-launcher</artifactId>
        <version>1.9.3</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-core</artifactId>
        <version>5.3.1</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-junit-jupiter</artifactId>
        <version>5.3.1</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>junit-addons</groupId>
        <artifactId>junit-addons</artifactId>
        <version>1.4</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.wcm</groupId>
        <artifactId>io.wcm.testing.aem-mock.junit5</artifactId>
        <version>5.1.0</version>
        <scope>test</scope>
    </dependency>
      EstebanBustamante
      Community Advisor and Adobe Champion
      EstebanBustamanteCommunity Advisor and Adobe Champion
      Community Advisor and Adobe Champion
      April 15, 2024

      Hi, 

      The problem is that in some Mockito versions, the mockStatic method was disabled by default. There are a couple of ways to configure this, but I think the easiest one is just to use the mockito-inline dependency instead of mockito-core. Try something like this:

      <dependency> <groupId>org.mockito</groupId> <artifactId>mockito-inline</artifactId> <version>5.2.0</version> <scope>test</scope> </dependency>

       

      References: 

      https://wttech.blog/blog/2020/mocking-static-methods-made-possible-in-mockito-3.4.0/

      https://github.com/mockito/mockito/issues/2528

       

      Hope this helps

      Esteban Bustamante
        kautuk_sahni
        Community Manager
        kautuk_sahniCommunity Manager
        Community Manager
        June 19, 2024

        @thanikon Did you find the suggestion helpful? Please let us know if you require more information. Otherwise, please mark the answer as correct for posterity. If you've discovered a solution yourself, we would appreciate it if you could share it with the community. Thank you!  

        Kautuk Sahni
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