Estou com esses erros ao executar o Junit.
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'entityManagerFactory' defined in class br.com.casadocodigo.loja.conf.JPAConfiguration: Unsatisfied dependency expressed through constructor argument with index 0 of type [javax.sql.DataSource]: : Error creating bean with name 'dataSource' defined in class br.com.casadocodigo.loja.conf.DataSourceConfigurationTest: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.sql.DataSource br.com.casadocodigo.loja.conf.DataSourceConfigurationTest.dataSource()] threw exception; nested exception is java.lang.StackOverflowError; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class br.com.casadocodigo.loja.conf.DataSourceConfigurationTest: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.sql.DataSource br.com.casadocodigo.loja.conf.DataSourceConfigurationTest.dataSource()] threw exception; nested exception is java.lang.StackOverflowError