spring-test-slices: Spring Boot 4.1.2 test slices lab (@WebMvcTest, @JsonTest, @RestClientTest, @DataJpaTest vs @SpringBootTest)
Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b7Jbw5CxUQ13D7gn25
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Claude
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@WebMvcTest(BookController.class) with @MockitoBean BookService
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GET /api/books/1 -> 200 {"isbn":"9780134685991","title":"Effective Java","author":"Joshua Bloch","price":"INR 499.00","published_on":"2018-01-06"}
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GET /api/books/99 -> 404 {"detail":"No book with id 99","instance":"/api/books/99","status":404,"title":"Book not found"}
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beans in this context:
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BookController (@RestController)=yes
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ApiExceptionHandler (@ControllerAdvice)=yes
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PriceJson (@JacksonComponent)=yes
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MockMvc=yes
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JsonMapper (Jackson 3)=yes
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BookService (@Service)=yes
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BookRepository (Spring Data)=no
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EntityManagerFactory=no
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DataSource=no
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RestClient.Builder=no
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IsbnLookupClient (@Component)=no
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AuditLogger (@Component)=no
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bean definitions=126
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@JsonTest with JacksonTester<BookView>
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write(view) -> {"isbn":"9780134685991","title":"Effective Java","author":"Joshua Bloch","price":"INR 499.00","published_on":"2018-01-06"}
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parseObject(...).price() -> Price[currency=INR, amount=499.00]
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beans in this context:
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BookController (@RestController)=no
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ApiExceptionHandler (@ControllerAdvice)=no
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PriceJson (@JacksonComponent)=yes
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MockMvc=no
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JsonMapper (Jackson 3)=yes
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BookService (@Service)=no
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BookRepository (Spring Data)=no
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EntityManagerFactory=no
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DataSource=no
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RestClient.Builder=no
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IsbnLookupClient (@Component)=no
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AuditLogger (@Component)=no
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bean definitions=35
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@RestClientTest(IsbnLookupClient.class), base URL from application.properties
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lookup(9780134685991) -> Optional[IsbnInfo[isbn=9780134685991, title=Effective Java, author=Joshua Bloch, pages=412]]
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lookup(0000000000) -> Optional.empty
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beans in this context:
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BookController (@RestController)=no
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ApiExceptionHandler (@ControllerAdvice)=no
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PriceJson (@JacksonComponent)=yes
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MockMvc=no
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JsonMapper (Jackson 3)=yes
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BookService (@Service)=no
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BookRepository (Spring Data)=no
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EntityManagerFactory=no
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DataSource=no
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RestClient.Builder=yes
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IsbnLookupClient (@Component)=yes
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AuditLogger (@Component)=no
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bean definitions=53
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@DataJpaTest
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findByAuthorIgnoreCaseOrderByTitle("ANN") -> [Apple, Zebra]
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DataSource class -> EmbeddedDataSourceProxy
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JDBC URL starts with jdbc:h2:mem: -> true
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beans in this context:
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BookController (@RestController)=no
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ApiExceptionHandler (@ControllerAdvice)=no
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PriceJson (@JacksonComponent)=no
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MockMvc=no
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JsonMapper (Jackson 3)=no
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BookService (@Service)=no
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BookRepository (Spring Data)=yes
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EntityManagerFactory=yes
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DataSource=yes
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RestClient.Builder=no
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IsbnLookupClient (@Component)=no
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AuditLogger (@Component)=no
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bean definitions=80
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b_firstTestInsertsOneRow -> count after save = 1
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c_secondTestStillSeesOnlyItsOwnRow -> count after save = 1
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(the row from b_ was rolled back when its test ended)
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@SpringBootTest + @AutoConfigureMockMvc, @MockitoBean IsbnLookupClient
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POST /api/books/import/9780134685991 -> 200 {"isbn":"9780134685991","title":"Effective Java","author":"Joshua Bloch","price":"INR 499.00","published_on":"2024-01-01"}
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GET /api/books?author=joshua bloch -> 200 [{"isbn":"9780134685991","title":"Effective Java","author":"Joshua Bloch","price":"INR 499.00","published_on":"2024-01-01"}]
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beans in this context:
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BookController (@RestController)=yes
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ApiExceptionHandler (@ControllerAdvice)=yes
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PriceJson (@JacksonComponent)=yes
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MockMvc=yes
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JsonMapper (Jackson 3)=yes
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BookService (@Service)=yes
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BookRepository (Spring Data)=yes
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EntityManagerFactory=yes
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DataSource=yes
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RestClient.Builder=yes
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IsbnLookupClient (@Component)=yes
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AuditLogger (@Component)=yes
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bean definitions=251
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Each class in lab.slices.failing is run through the JUnit Launcher; this is what its exception says.
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(The 'Failed to load ApplicationContext' line carries a long configuration dump with object hashes; it is cut at the first '['.
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The module directory is shown as <module>.)
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== MissingMockBeanFailure
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exception chain: IllegalStateException -> UnsatisfiedDependencyException -> NoSuchBeanDefinitionException
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top message : Failed to load ApplicationContext for
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wiring failure : Error creating bean with name 'bookController' defined in file [<module>/target/classes/lab/slices/BookController.class]: Unsatisfied dependency expressed through constructor parameter 0: No qualifying bean of type 'lab.slices.BookService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
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== ServiceInDataJpaFailure
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exception chain: UnsatisfiedDependencyException -> NoSuchBeanDefinitionException
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wiring failure : Error creating bean with name 'lab.slices.failing.ServiceInDataJpaFailure': Unsatisfied dependency expressed through field 'service': No qualifying bean of type 'lab.slices.BookService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
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== RepositoryInWebMvcFailure
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exception chain: UnsatisfiedDependencyException -> NoSuchBeanDefinitionException
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wiring failure : Error creating bean with name 'lab.slices.failing.RepositoryInWebMvcFailure': Unsatisfied dependency expressed through field 'repository': No qualifying bean of type 'lab.slices.BookRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
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== PlainComponentInJsonFailure
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exception chain: UnsatisfiedDependencyException -> NoSuchBeanDefinitionException
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wiring failure : Error creating bean with name 'lab.slices.failing.PlainComponentInJsonFailure': Unsatisfied dependency expressed through field 'audit': No qualifying bean of type 'lab.slices.AuditLogger' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
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== ClientWithoutComponentsFailure
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exception chain: UnsatisfiedDependencyException -> NoSuchBeanDefinitionException
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wiring failure : Error creating bean with name 'lab.slices.failing.ClientWithoutComponentsFailure': Unsatisfied dependency expressed through field 'client': No qualifying bean of type 'lab.slices.IsbnLookupClient' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
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@WebMvcTest + @EnableJpaAuditing (via @Import), BookService mocked
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exception chain: IllegalStateException -> BeanCreationException -> BeanCreationException -> IllegalArgumentException
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root cause : JPA metamodel must not be empty
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Class.forName on the Boot 4.1.2 test classpath
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@WebMvcTest
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old: org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest -> NOT FOUND
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new: org.springframework.boot.webmvc.test.autoconfigure.WebMvcTest -> present
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@AutoConfigureMockMvc
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old: org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc -> NOT FOUND
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new: org.springframework.boot.webmvc.test.autoconfigure.AutoConfigureMockMvc -> present
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@DataJpaTest
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old: org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest -> NOT FOUND
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new: org.springframework.boot.data.jpa.test.autoconfigure.DataJpaTest -> present
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TestEntityManager
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old: org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager -> NOT FOUND
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new: org.springframework.boot.jpa.test.autoconfigure.TestEntityManager -> present
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@AutoConfigureTestDatabase
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old: org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase -> NOT FOUND
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new: org.springframework.boot.jdbc.test.autoconfigure.AutoConfigureTestDatabase -> present
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@RestClientTest
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old: org.springframework.boot.test.autoconfigure.web.client.RestClientTest -> NOT FOUND
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new: org.springframework.boot.restclient.test.autoconfigure.RestClientTest -> present
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@JsonTest
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old: org.springframework.boot.test.autoconfigure.json.JsonTest -> present
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new: org.springframework.boot.test.autoconfigure.json.JsonTest -> present
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@MockBean
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old: org.springframework.boot.test.mock.mockito.MockBean -> NOT FOUND
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new: org.springframework.test.context.bean.override.mockito.MockitoBean -> present
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@JsonComponent
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old: org.springframework.boot.jackson.JsonComponent -> NOT FOUND
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new: org.springframework.boot.jackson.JacksonComponent -> present
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@SpyBean
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old: org.springframework.boot.test.mock.mockito.SpyBean -> NOT FOUND
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new: org.springframework.test.context.bean.override.mockito.MockitoSpyBean -> present
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javac against the Boot 4.1.2 test classpath, sources from src/broken/
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OldDataJpaTest.java:3: error: package org.springframework.boot.test.autoconfigure.orm.jpa does not exist
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OldDataJpaTest.java:4: error: package org.springframework.boot.test.autoconfigure.orm.jpa does not exist
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OldDataJpaTest.java:7: error: cannot find symbol
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symbol: class DataJpaTest
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OldDataJpaTest.java:9: error: cannot find symbol
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symbol: class TestEntityManager
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location: class lab.slices.OldDataJpaTest
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OldRestClientTest.java:3: error: package org.springframework.boot.test.autoconfigure.web.client does not exist
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OldRestClientTest.java:6: error: cannot find symbol
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symbol: class RestClientTest
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OldWebMvcTest.java:3: error: package org.springframework.boot.test.autoconfigure.web.servlet does not exist
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OldWebMvcTest.java:4: error: package org.springframework.boot.test.mock.mockito does not exist
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OldWebMvcTest.java:7: error: cannot find symbol
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symbol: class WebMvcTest
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OldWebMvcTest.java:9: error: cannot find symbol
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symbol: class MockBean
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location: class lab.slices.OldWebMvcTest
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10 errors
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Single-argument constructor of each tester in spring-boot-test 4.1.2
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JacksonTester wraps tools.jackson.databind.json.JsonMapper
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Jackson2Tester cannot be inspected: com.fasterxml.jackson.databind.ObjectMapper is not on the classpath
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Spring Boot 4.1.2: webmvc + data-jpa + restclient starters, and only spring-boot-starter-test for tests
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spring-boot jars with 'test' in the name on that classpath:
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spring-boot-starter-test-4.1.2.jar
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spring-boot-test-4.1.2.jar
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spring-boot-test-autoconfigure-4.1.2.jar
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bean WebMvcTest JsonTest RestClientTest DataJpaTest SpringBootTest
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BookController (@RestController) yes no no no yes
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ApiExceptionHandler (@ControllerAdvice) yes no no no yes
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PriceJson (@JacksonComponent) yes yes yes no yes
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MockMvc yes no no no yes
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JsonMapper (Jackson 3) yes yes yes no yes
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BookService (@Service) yes no no no yes
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BookRepository (Spring Data) no no no yes yes
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EntityManagerFactory no no no yes yes
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DataSource no no no yes yes
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RestClient.Builder no no yes no yes
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IsbnLookupClient (@Component) no no yes no yes
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AuditLogger (@Component) no no no no yes
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bean definitions 126 35 53 80 251
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Context startup time per test class (one class per mvn run; indicative, varies between runs)
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Started JsonSliceTest in 1.132 seconds
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Started RestClientSliceTest in 1.521 seconds
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Started WebMvcSliceTest in 2.619 seconds
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Started DataJpaSliceTest in 3.173 seconds
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Started FullContextTest in 4.344 seconds
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