使用mockito进行参数命名查询测试

发布于 2024-11-16 11:35:34 字数 927 浏览 5 评论 0原文

我想为我的 dao 编写一个 Junit 测试，但我有一个问题。这是我想测试的方法：

 public boolean boo(final String param) {
            final Query query = this.entityManager.createNamedQuery("queryName");
            query.setParameter(1, param);
            boolean isExists = false;
            if(query.getResultList().size() != 0) {
                isExists = true;
            }
            return isExists;
        }

该方法的问题是：

query.setParameter(1, param);

当我编写如下内容时：

   @Test
    public void test() {        
        when(entityManager.createNamedQuery(queryName)).thenReturn(query);
        when(query.getResultList()).thenReturn(new ArrayList());
        //when(query.setParameter(1,project.getName())).thenCallRealMethod();
        projectDao.boo(name);

    }

查询和实体管理器被模拟。我有 NPE，这并不奇怪，我无法调用该方法，因为查询是和接口。那么有人可以告诉我在测试时在 NamedQueries 中设置参数的最佳方法吗？

原文

I want to write a Junit test for my dao, but I have a problem. Here is the method I want to test:

 public boolean boo(final String param) {
            final Query query = this.entityManager.createNamedQuery("queryName");
            query.setParameter(1, param);
            boolean isExists = false;
            if(query.getResultList().size() != 0) {
                isExists = true;
            }
            return isExists;
        }

The problem with this method is :

query.setParameter(1, param);

When I write something like :

   @Test
    public void test() {        
        when(entityManager.createNamedQuery(queryName)).thenReturn(query);
        when(query.getResultList()).thenReturn(new ArrayList());
        //when(query.setParameter(1,project.getName())).thenCallRealMethod();
        projectDao.boo(name);

    }

The query and entityManager are mocked.
I have NPE, and this is not a surprise, and I cannot call the method because the query is and interface.
So could somebody tell me the best way to set parameters in NamedQueries while testing?

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美人迟暮 2024-11-23 11:35:34

您应该像这样创建查询接口的模拟...

@Test
public void test() { 

    Query query = mock(Query.class);

    when(entityManager.createNamedQuery(queryName)).thenReturn(query);

    ...

也许您忘记了字符串文字“queryName”周围的双引号。从您的代码中我看不到上面最后一行定义变量 queryName 的位置。

You're supposed to be creating a mock of the Query interface like this...

@Test
public void test() { 

    Query query = mock(Query.class);

    when(entityManager.createNamedQuery(queryName)).thenReturn(query);

    ...

Maybe you forgot the double quotes around the String literal "queryName". From your code I cannot see where the variable queryName is defined on the last line above.

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