Unable to find a SpringBootConfiguration when doing a JpaTest

Question

I m new to frameworks  just passed the class  and this is my first time using Spring Boot   I m trying to run a simple Junit test to see if my CrudRepositories are indeed working   The error I keep getting is      Unable to find a  SpringBootConfiguration  you need to use  ContextConfiguration or  SpringBootTest classes      with your test   java lang IllegalStateException   Doesn t Spring Boot configure itself   My Test Class    RunWith SpringRunner class   DataJpaTest  SpringBootTest webEnvironment   WebEnvironment RANDOM PORT  public class JpaTest     Autowired private AccountRepository repository    After public void clearDb        repository deleteAll         Test  public void createAccount         long id   12       Account u   new Account id  Tim Viz         repository save u         assertEquals repository findOne id  u           Test  public void findAccountByUsername         long id   12       String username    Tim Viz        Account u   new Account id username        repository save u         assertEquals repository findByUsername username  u         My Spring Boot application starter    SpringBootApplication  EnableJpaRepositories basePackages     domain repositories     ComponentScan basePackages     controllers   domain     EnableWebMvc  PropertySources value      PropertySource  classpath application properties          EntityScan basePackages   domain        public class Application extends SpringBootServletInitializer           public static void main String   args                ApplicationContext ctx   SpringApplication run Application class  args                               My Repository   public interface AccountRepository extends CrudRepository lt Account Long gt         public Account findByUsername String username

User · Answer

When all the classes were in same package, test classes were working. As soon as I moved all the java classes to different package to maintain proper project structure I was getting the same error.

I solved it by providing my main class name in the test class like below.

@SpringBootTest(classes=JunitBasicsApplication.class)

User · Answer

In my case Make sure your  test package name  of YourApplicationTests is equivalent to the  main package name

User · Answer

In my case I was using the Test class from wrong package  when I replaced import org junit Test  with import org junit jupiter api Test  it worked

User · Answer

Configuration is attached to the application class  so the following will set up everything correctly   SpringBootTest classes   Application class   Example from the JHipster project here

User · Answer

Make sure the test class is in a sub-package of your main spring boot class

User · Answer

I think that the best solution for this issue is to align your tests folders structure with the application folder structure   I had the same issue which was caused by duplicating my project from a different folder structure project   if your test project and your application project will have the same structure you will not be required to add any special annotations to your tests classes and everything will work as is

User · Answer

It work fo me   the package name of the above test class is changed to the same as the package name of the normal class      change to this

User · Answer

In my case the packages were different between the Application and Test classes  package com example abc       SpringBootApplication public class ProducerApplication     and  package com example abc etc       RunWith SpringRunner class   SpringBootTest public class ProducerApplicationTest     After making them agree the tests ran correctly

User · Answer

import org junit Test  import org junit runner RunWith  import org springframework beans factory annotation Autowired  import org springframework boot test autoconfigure orm jpa DataJpaTest  import org springframework boot test autoconfigure web servlet AutoConfigureWebMvc  import org springframework boot test context SpringBootTest  import org springframework test context junit4 SpringRunner      RunWith SpringRunner class   DataJpaTest  SpringBootTest  AutoConfigureWebMvc public class RepoTest         Autowired     private ThingShiftDetailsRepository thingShiftDetailsRepo        Test     public void findThingShiftDetails                 ShiftDetails details   new ShiftDetails                details setThingId 1                thingShiftDetailsRepo save details                ShiftDetails dbDetails   thingShiftDetailsRepo findByThingId 1               System out println dbDetails             Above annotations worked well for me  I am using spring boot with JPA

User · Answer

This is more the the error itself  not answering the original question  We were migrating from java 8 to java 11  Application compiled successfully  but the errors Unable to find a  SpringBootConfiguration started to appear in the integration tests when ran from command line using maven  from IntelliJ it worked   It appeared that maven-failsafe-plugin stopped seeing the classes on classpath  we fixed that by telling failsafe plugin to include the classes manually           lt plugin gt               lt groupId gt org apache maven plugins lt  groupId gt               lt artifactId gt maven-failsafe-plugin lt  artifactId gt               lt configuration gt                   lt additionalClasspathElements gt                       lt additionalClasspathElement gt   basedir  target classes lt  additionalClasspathElement gt                   lt  additionalClasspathElements gt               lt  configuration gt                           lt  plugin gt

User · Answer

In addition to what Thomas K  sene said  you can also add   SpringBootTest classes com package path class    to the test annotation to specify where it should look for the other class if you didn t want to refactor your file hierarchy  This is what the error message hints at by saying    Unable to find a  SpringBootConfiguration  you need to use   ContextConfiguration or  SpringBootTest classes

User · Answer

The test slice provided in Spring Boot 1 4 brought feature oriented test capabilities    For example     JsonTest provides a simple Jackson environment to test the json serialization and deserialization    WebMvcTest provides a mock web environment  it can specify the controller class for test and inject the MockMvc in the test    WebMvcTest PostController class  public class PostControllerMvcTest        Inject MockMvc mockMvc        DataJpaTest will prepare an embedded database and provides basic JPA environment for the test    RestClientTest provides REST client environment for the test  esp the RestTemplateBuilder etc   These annotations are not composed with SpringBootTest  they are combined with a series of AutoconfigureXXX and a  TypeExcludesFilter annotations   Have a look at  DataJpaTest    Target ElementType TYPE   Retention RetentionPolicy RUNTIME   Documented  Inherited  BootstrapWith SpringBootTestContextBootstrapper class   OverrideAutoConfiguration enabled   false   TypeExcludeFilters DataJpaTypeExcludeFilter class   Transactional  AutoConfigureCache  AutoConfigureDataJpa  AutoConfigureTestDatabase  AutoConfigureTestEntityManager  ImportAutoConfiguration public  interface DataJpaTest      You can add your  AutoconfigureXXX annotation to override the default config    AutoConfigureTestDatabase replace NONE   DataJpaTest public class TestClass      Let s have a look at your problem    Do not mix  DataJpaTest and  SpringBootTest  as said above  DataJpaTest will build the configuration in its own way eg  by default  it will try to prepare an embedded H2 instead  from the application configuration inheritance   DataJpaTest is designated for test slice  If you want to customize the configuration of  DataJpaTest  please read this official blog entry from Spring io for this topic  a little tedious   Split the configurations in Application into smaller configurations by features  such as WebConfig  DataJpaConfig etc  A full featured configuration mixed web  data  security etc  also caused your test slice based tests to be failed  Check the test samples in  my sample

User · Answer

It is worth to check if you have refactored package name of your main class annotated with  SpringBootApplication  In that case the testcase should be in an appropriate package otherwise it will be looking for it in the older package   this was the case for me

User · Answer

I had the same issue and I solved by adding an empty class annotated with SpringBootApplication in the root package of the folder src test java  package org enricogiurin core  import org springframework boot autoconfigure SpringBootApplication    SpringBootApplication public class CoreTestConfiguration

User · Answer

Indeed  Spring Boot does set itself up for the most part  You can probably already get rid of a lot of the code you posted  especially in Application   I wish you had included the package names of all your classes  or at least the ones for Application and JpaTest  The thing about  DataJpaTest and a few other annotations is that they look for a  SpringBootConfiguration annotation in the current package  and if they cannot find it there  they traverse the package hierarchy until they find it   For example  if the fully qualified name for your test class was com example test JpaTest and the one for your application was com example Application  then your test class would be able to find the  SpringBootApplication  and therein  the  SpringBootConfiguration    If the application resided in a different branch of the package hierarchy  however  like com example application Application  it would not find it   Example  Consider the following Maven project   my-test-project    --pom xml    --src      --main        --com          --example            --Application java      --test        --com          --example            --test              --JpaTest java   And then the following content in Application java   package com example    SpringBootApplication public class Application        public static void main String   args            SpringApplication run Application class  args             Followed by the contents of JpaTest java   package com example test    RunWith SpringRunner class   DataJpaTest public class JpaTest         Test     public void testDummy               Everything should be working  If you create a new folder inside src main com example called app  and then put your Application java inside it  and update the package declaration inside the file   running the test will give you the following error      java lang IllegalStateException  Unable to find a  SpringBootConfiguration  you need to use  ContextConfiguration or  SpringBootTest classes      with your test

[java] Unable to find a @SpringBootConfiguration when doing a JpaTest

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