提示的错误信息如下：
Caused by: org.h2.jdbc.JdbcSQLInvalidAuthorizationSpecException: Wrong user name or password [28000-200]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:461)
at org.h2.message.DbException.getJdbcSQLException(DbException.java:429)
at org.h2.message.DbException.get(DbException.java:205)
at org.h2.message.DbException.get(DbException.java:181)
at org.h2.message.DbException.get(DbException.java:170)
at org.h2.engine.Engine.validateUserAndPassword(Engine.java:357)
at org.h2.engine.Engine.createSessionAndValidate(Engine.java:176)
at org.h2.engine.Engine.createSession(Engine.java:166)
at org.h2.engine.Engine.createSession(Engine.java:29)
at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152)
at org.h2.Driver.connect(Driver.java:69)
at org.springframework.jdbc.datasource.SimpleDriverDataSource.getConnectionFromDriver(SimpleDriverDataSource.java:144)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:205)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:179)
at org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory$EmbeddedDataSourceProxy.getConnection(EmbeddedDatabaseFactory.java:263)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180)
at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:43)
在默认情况下 DataJpaTest 测试将会使用 H2 数据库载入内存后进行测试。
如果你的配置不正确将会提示用户名和密码错误。
所以我们可以选择 DataJpaTest 不载入 H2 进行测试。
问题和解决
解决办法是添加下面这句话：
@AutoConfigureTestDatabase(replace= AutoConfigureTestDatabase.Replace.NONE)在测试类中，添加上上面这句话将会告诉 Spring Boot 的测试从 application.properties 文件中载入数据库配置信息。
上面的意思是不使用 H2 数据库，而使用 Spring Boot 的配置数据源。
最好的办法就是使用 @SpringBootTest 来进行测试。
https://www.ossez.com/t/datajpatest-wrong-user-name-or-password/13202