How to exclude AutoConfiguration classes in Spring Boot JUnit tests

Question

I tried    RunWith SpringJUnit4ClassRunner class   EnableAutoConfiguration exclude CrshAutoConfiguration class   SpringApplicationConfiguration classes   Application class   WebAppConfiguration public class LikeControllerTest     However the CRaSSHD still starts up  While currently it doesn t harm the test  I d like to disable unnecessary modules during unit testing to speed up and also avoid potential conflicts

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SpringBootTest classes    Application class                  webEnvironment   SpringBootTest WebEnvironment RANDOM PORT                 properties  spring autoconfigure exclude com xx xx AutoConfiguration                     ref https   github com spring-projects spring-boot issues 8579

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If the issue is that your SpringBootApplication Configuration you are bringing in is component scanning the package your test configurations are in  you can actually remove the  Configuration annotation from the test configurations and you can still use them in the  SpringBootTest annotations  For example  if you have a class Application that is your main configuration and a class TestConfiguration that is a configuration for certain  but not all tests  you can set up your classes as follows    Import Application class    or the specific configurations you want    Optional  Other Annotations that will not trigger an autowire public class TestConfiguration         your custom test configuration     And then you can configure your tests in one of two ways    With the regular configuration    SpringBootTest classes    Application class     won t component scan your configuration because it doesn t have an autowire-able annotation   Other annotations here public class TestThatUsesNormalApplication         my test code    With the test custom test configuration    SpringBootTest classes    TestConfiguration class     this still works    Other annotations here public class TestThatUsesCustomTestConfiguration         my test code

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I had a similar use case where I wanted to test a Spring Boot configured repository in isolation  in my case without Spring Security autoconfiguration which was failing my test    SpringApplicationConfiguration uses SpringApplicationContextLoader and that has a JavaDoc stating     Can be used to test non-web features  like a repository layer  or   start an fully-configured embedded servlet container    However  like yourself  I could not work out how you are meant to configure the test to only test the repository layer using the main configuration entry point i e  using your approach of  SpringApplicationConfiguration classes   Application class    My solution was to create a completely new application context exclusive for testing  So in src test java I have two files in a sub-package called repo   RepoIntegrationTest java TestRepoConfig java   where RepoIntegrationTest java has   RunWith SpringJUnit4ClassRunner class   SpringApplicationConfiguration classes   TestRepoConfig class  public class RepoIntegrationTest     and TestRepoConfig java has   SpringBootApplication exclude   SecurityAutoConfiguration class  public class TestRepoConfig     It got me out of trouble but it would be really useful if anyone from the Spring Boot team could provide an alternative recommended solution

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I had a similar problem but I came to a different solution that may help others   I used Spring Profiles to separate out test and app configuration classes      Create a TestConfig class with a specific profile and exclude any app configuration from component scan you wish here  In your test class set the profile to match the TestConfig and include it using the  ContextConfiguration annotation    For example   configuration    Profile  test    Configuration  EnableWebMvc  ComponentScan      basePackages  your base package       excludeFilters                  Filter type   ASSIGNABLE TYPE                      value                                 ExcludedAppConfig1 class                              ExcludedAppConfig2 class                       public class TestConfig          test    ActiveProfiles  test    RunWith SpringJUnit4ClassRunner class   ContextConfiguration classes   TestConfig class   WebAppConfiguration public class SomeTest

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I struggled with this as well and found a simple pattern to isolate the test context after a cursory read of the  ComponentScan docs                   Type-safe alternative to   link  basePackages  for specifying the packages          to scan for annotated components  The package of each class specified will be scanned           Consider creating a special no-op marker class or interface in each package          that serves no purpose other than being referenced by this attribute                  Class lt   gt    basePackageClasses   default        Create a package for your spring tests    com example test    Create a marker interface in the package as a context qualifier  Provide the marker interface reference as a parameter to basePackageClasses      Example     IsolatedTest java   package com example test    RunWith SpringJUnit4ClassRunner class   ComponentScan basePackageClasses    TestDomain class    SpringApplicationConfiguration classes   IsolatedTest Config class  public class IsolatedTest         String expected    Read the documentation on  ComponentScan        String actual    Too lazy when I can just search on Stack Overflow            Test       public void testSomething   throws Exception             assertEquals expected  actual                   ComponentScan basePackageClasses    TestDomain class         public static class Config         public static void main String   args              SpringApplication run Config class  args                          TestDomain java      package com example test   public interface TestDomain     noop marker

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got into same kind of problem  wasn t able to exclude main spring boot class during testing  Solved it using following approach   Instead of using  SpringBootApplication  use all three annotations which it contains and assign the name to  Configuration   Configuration  myApp    EnableAutoConfiguration  ComponentScan public class MyApp          In your test class define configuration with exactly same name    RunWith SpringJUnit4ClassRunner class   WebAppConfiguration    ugly hack how to exclude main configuration  Configuration  myApp    SpringApplicationConfiguration classes   MyTest class  public class MyTest           This should help  Would be nice to have some better way in place how to disable auto scanning for configuration annotations

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I have struggled with a similar issue for one day    My Scenario   I have a SpringBoot application and I use applicationContext xml in scr main resources to configure all my Spring Beans   For testing integration testing  I use another applicationContext xml in test resources and things worked as I have expected  Spring SpringBoot would override applicationContext xml from scr main resources and would use the one for Testing which contained the beans configured for testing   However  just for one UnitTest I wanted yet another customization for the applicationContext xml used in Testing  just for this Test I wanted to used some         mockito beans  so I could mock and verify  and here started my one day head-ache   The problem is that Spring SpringBoot doesn t not override the applicationContext xml from scr main resources ONLY IF the file from test resources HAS the SAME NAME  I tried for hours to use something like    RunWith SpringJUnit4ClassRunner class   OverrideAutoConfiguration enabled true   ContextConfiguration   classpath applicationContext-test xml      it did not work  Spring was first loading the beans from applicationContext xml in scr main resources  My solution based on the answers here by  myroch and  Stuart    Define the main configuration of the application    Configuration  ImportResource   classpath applicationContext xml    public class MainAppConfig       this is used in the application   SpringBootApplication  Import MainAppConfig class  public class SuppressionMain implements CommandLineRunner    Define a TestConfiguration for the Test where you want to exclude the main configuration   ComponentScan  basePackages    com mypackage           excludeFilters                      ComponentScan Filter type   ASSIGNABLE TYPE                          value    MainAppConfig class               EnableAutoConfiguration public class TestConfig       By doing this  for this Test  Spring will not load applicationContext xml and will load only the custom configuration specific for this Test

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I think that the best solution currently for springBoot 2 0 is using profiles    RunWith SpringRunner class   SpringBootTest classes   Application class  webEnvironment   WebEnvironment DEFINED PORT   ActiveProfiles  test   public class ExcludeAutoConfigIntegrationTest                   spring autoconfigure exclude org springframework boot autoconfigure security servlet SecurityAutoConfiguration  anyway in the following link give 6 different alternatives to solve this

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With the new  SpringBootTest annotation  I took this answer and modified it to use profiles with a  SpringBootApplication configuration class   The  Profile annotation is necessary so that this class is only picked up during the specific integration tests that need this  as other test configurations do different component scanning   Here is the configuration class    Profile  specific-profile    SpringBootApplication scanBasePackages   com myco package1    com myco package2    public class SpecificTestConfig        Then  the test class references this configuration class    RunWith SpringRunner class   SpringBootTest classes     SpecificTestConfig class     ActiveProfiles   specific-profile    public class MyTest

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I think that using the  EnableAutoConfiguration annotation on a test class won t work if you are using  SpringApplicationConfiguration to load your Application class  The thing is that you already have a  EnableAutoConfiguration annotation in the Application class that does not exclude the CrshAutoConfiguration Spring uses that annotation instead of the one on your test class to do the auto configuration of your beans    I think that your best bet is to use a different application context for your tests and exclude the CrshAutoConfiguration in that class   I did some tests and it seems that  EnableAutoConfiguration on the test class is completely ignore if you are using the  SpringApplicationConfiguration annotation and the SpringJUnit4ClassRunner

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If you re having this problem with Spring Boot 1 4 x and up  you might be able to use  OverrideAutoConfiguration enabled true  to solve the problem   Similar to what was asked answered here https   stackoverflow com a 39253304 1410035

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Another simple way to exclude the auto configuration classes   Add below similar configuration to your application yml file   --- spring    profiles  test   autoconfigure exclude  org springframework boot autoconfigure session SessionAutoConfiguration

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Top answers don t point to an even simpler and more flexible solution   just place a    TestPropertySource properties    spring autoconfigure exclude comma seperated ClassNames com example FooAutoConfiguration     SpringBootTest public class MySpringTest         annotation above your test class  This means other tests aren t affected by the current test s special case  If there is a configuration affecting most of your tests  then consider using the spring profile instead as the current top answer suggests      Thanks to  skirsch for encouraging me to upgrade this from a comment to an answer

[java] How to exclude *AutoConfiguration classes in Spring Boot JUnit tests?

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