我的单元测试Junit mockito EntityManager createNativeQuery的java问题
我正在尝试测试使用createNativeQuery查询数据库的类
下面是我用来查询数据库的类
@component
public class QueryAdapter{
...
public UtilityResponse getCreditLimit(String id) {
Query q = entityManager.createNativeQuery("select name from MY_TABLE where id=:id");
LOGGER.info(id);
q.setParameter("id", id);
q.setMaxResults(Integer.parseInt(env.getProperty("maxrows")));
@SuppressWarnings("unchecked")
List<Object[]> d = q.getResultList();
UtilityResponse duresp = new UtilityResponse();
duresp.setData(d);
return duresp;
...
}
我编写了一个junit测试类,如下所示。我嘲笑了EntityManager和查询类。我期待着这份名单<;对象[]>;在遇到getResultList方法时返回的getResponse()方法
package com.myorg.myapp.datautility.test;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.when;
import static org.mockito.ArgumentMatchers.any;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import com.myorg.myapp.datautility.adapter.QueryAdapter;
@SpringBootTest
@RunWith(SpringRunner.class)
public class UtilityAdapterTest {
@Mock
EntityManager em;
@Autowired
public QueryAdapter dqa;
@Mock
Query mockedQuery;
@Test
public void getCreditLimitTest() {
String id = "12345";
when(em.createNativeQuery(any(String.class))).thenReturn(mockedQuery);
Mockito.when(em.createNativeQuery(Mockito.anyString())).thenReturn(mockedQuery);
when(mockedQuery.getResultList()).thenReturn(getResponse());
UtilityResponse dur=dqa.getCreditLimit(id);
assertTrue(dur instanceof UtilityResponse);
}
public List<Object[]> getResponse() {
List<Object[]> lo = new ArrayList<>();
Object[] os = new Object[6];
for (int i = 0; i < 6; i++) {
os[i] = "STUB";
}
lo.add(os);
return lo;
}
}
我的申请。财产是这样的。我实际上使用的是h2数据库
server.port=8004
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.generate_statistics=false
spring.datasource.url=jdbc:h2:mem:temp;DB_CLOSE_DELAY=-1
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.driver-class-name=org.h2.Driver
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.jpa.hibernate.ddl-auto=none
当我运行测试用例时,我期待一个成功的结果。但我得到的结果如下。这就是我想进入的桌子
2021-02-25 23:33:19.084 WARN 36008 --- [ main] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 42102, SQLState: 42S02
2021-02-25 23:33:19.084 ERROR 36008 --- [ main] o.h.engine.jdbc.spi.SqlExceptionHelper : Table "MY_TABLE" not found; SQL statement
# 1 楼答案
你必须把你的模拟注入到你要测试的类中
而不是
试试这个:
请参阅本文了解更多信息:https://howtodoinjava.com/mockito/mockito-mock-injectmocks/