我用names(L) <- D$name
D2 <- data.table::rbindlist(L, use.names = TRUE, idcol = "name")
D2[D, on = "name"]
# name attempt result age
# 1: john 1 fail 23
# 2: john 2 fail 23
# 3: john 3 fail 23
# 4: sally 1 success 31
# 5: ben 1 fail 27
# 6: ben 2 fail 27
# 7: ben 3 success 27
# 8: ben 4 fail 27
# 9: ben 5 success 27
数据库生成Postgresql数据库，application.properties下src/main/resources下的参数
spring.datasource.platform=POSTGRESQL
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.url=jdbc:postgresql://localhost:5432/db_prod
spring.datasource.username=prod
spring.datasource.password=prod
spring.jpa.hibernate.naming.physical-strategy= tn.alveodata.metieron.utils.DomainPhysicalNamingStategy
spring.jpa.hibernate.ddl-auto= none
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
spring.jpa.properties.hibernate.format-sql=false
spring.jpa.show-sql=true
为了使用内存数据库进行测试
我将application.properties文件存储在src/test/resources下以覆盖以前的键/值
spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.url=jdbc:h2:mem:db_test;DB_CLOSE_DELAY=-1;DATABASE_TO_UPPER=false
spring.datasource.username=sa
spring.datasource.password=sa
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect
spring.jpa.hibernate.ddl-auto=create
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format-sql=true
我的部门实体
@Entity
public class Sector {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private UUID id;
private String title;
...
扩展JpaRepository
的SectorRepository@Repository
public interface SectorRepository extends JpaRepository<Sector, UUID> {
@Query("SELECT s FROM Sector s WHERE s.title = :title")
public Sector findByTitle(@Param("title") String title);
}
H2JPAConfiguration，用于设置内存中的dataSource
@Configuration
@EntityScan(basePackages = {"com.domain.app.models.entities"})
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = "com.domain.app.daos")
@PropertySource({"classpath:application.properties"})
public class H2JPAConfiguration {
@Value("${spring.datasource.driver-class-name}")
private String dsDriverClassName;
@Value("${spring.datasource.url}")
private String dsUrl;
@Value("${spring.datasource.username}")
private String dsUserName;
@Value("${spring.datasource.password}")
private String dsPassword;
@Value("${spring.jpa.hibernate.naming.physical-strategy}")
private String hibernatePhysicalNamingStartegy;
@Value("${spring.jpa.hibernate.ddl-auto}")
private String hibernateHbm2DllAuto;
@Value("${spring.jpa.properties.hibernate.dialect}")
private String hibernateDialect;
@Value("${spring.jpa.show-sql}")
private String hibernateShowSql;
@Value("${spring.jpa.properties.hibernate.format-sql}")
private String hibernateFormatSql;
@Bean(name = "dataSource")
public DataSource getDataSource() {
DataSource dataSource = DataSourceBuilder.create().username(dsUserName).password(dsPassword).url(dsUrl).driverClassName(dsDriverClassName).build();
return dataSource;
}
我的测试单元
@ExtendWith(SpringExtension.class)
@DataJpaTest
@ContextConfiguration(classes = { H2JPAConfiguration.class }, loader = AnnotationConfigContextLoader.class)
@Tag(value = "SectorRepository")
@Transactional
@SpringBootTest(classes = AppApplication.class)
class SectorRepositoryTests{
@Autowired
private SectorRepository dao;
@Autowired
private TestEntityManager entityManager;
@BeforeEach
void setUp() throws Exception {
}
@AfterEach
void tearDown() throws Exception {
}
@Test
@DisplayName("Should find no sector")
void Shoud_Find_NoMember() {
// given
Iterable<Sector> sectors = dao.findAll();
// then
assertThat(sectors).isEmpty();
}
@Test
@DisplayName("Should store a sector")
void Shoud_Store_Member() throws Exception {
// given
Sector entity = getSector();
entityManager.persist(entity);
Sector dbEntity = dao.findByTitle("sector A");
// then
assertThat(entityManager.getEntityManager().isOpen()).isEqualTo(true);
assertEquals(dbEntity.getTitle(), "sector A");
}
private Sector getSector() {
Sector sector = new Sector();
sector.setTitle("sector A");
return sector;
}
}
控制台输出指示测试单元失败
org.springframework.dao.InvalidDataAccessResourceUsageException: could not prepare statement; SQL [insert into sector (title, id) values (?, ?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:242)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:225)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:527)
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:153)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy151.findByTitle(Unknown Source)
at com.domain.app.daos.SectorRepositoryTests.Shoud_Store_Member(SectorRepositoryTests.java:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:513)
at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:115)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:170)
at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:166)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:113)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:58)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:113)
at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:121)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
at java.util.Iterator.forEachRemaining(Unknown Source)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source)
at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
at java.util.stream.ReferencePipeline.forEach(Unknown Source)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:121)
at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:121)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
at java.util.Iterator.forEachRemaining(Unknown Source)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source)
at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
at java.util.stream.ReferencePipeline.forEach(Unknown Source)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:121)
at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:55)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)
Caused by: org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:181)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:77)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2999)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3533)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:600)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:474)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337)
at org.hibernate.event.internal.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:50)
at org.hibernate.internal.SessionImpl.autoFlushIfRequired(SessionImpl.java:1397)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1482)
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1445)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1414)
at org.hibernate.query.internal.AbstractProducedQuery.getSingleResult(AbstractProducedQuery.java:1463)
at org.springframework.data.jpa.repository.query.JpaQueryExecution$SingleEntityExecution.doExecute(JpaQueryExecution.java:214)
at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:91)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:136)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:125)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:590)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:578)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
... 66 more
Caused by: org.h2.jdbc.JdbcSQLException: Table "SECTOR" non trouvée
Table "SECTOR" not found; SQL statement:
insert into sector (title, id) values (?, ?) [42102-197]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:357)
at org.h2.message.DbException.get(DbException.java:179)
at org.h2.message.DbException.get(DbException.java:155)
at org.h2.command.Parser.readTableOrView(Parser.java:5920)
at org.h2.command.Parser.readTableOrView(Parser.java:5897)
at org.h2.command.Parser.parseInsert(Parser.java:1220)
at org.h2.command.Parser.parsePrepared(Parser.java:431)
at org.h2.command.Parser.parse(Parser.java:335)
at org.h2.command.Parser.parse(Parser.java:307)
at org.h2.command.Parser.prepareCommand(Parser.java:278)
at org.h2.engine.Session.prepareLocal(Session.java:611)
at org.h2.engine.Session.prepareCommand(Session.java:549)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1247)
at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:76)
at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:304)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:86)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:171)
... 92 more
看起来方言仍然是Postgresql的方言 并且未创建内存数据库