How to mock getJdbcTemplate().queryForObject()?

问题:

I successfully mocked

JdbcTemplate jdbcTemplate = getJdbcTemplate(); jdbcTemplate.queryForObject(); 

with

JdbcTemplate jdbcTemplate = mock(JdbcTemplate.class); when(jdbcTemplate.queryForObject(JdbcTwitterDao.SQL_SELECT_TWITTER, parameterizedRowMapper, 1)).thenReturn(expectedObject); 

Would you please let me know how to mock

getJdbcTemplate().queryForObject(); 

I don't know which object I should mock.

回答1:

If you are using JdbcDaoSupport as the base class to get the template, you can simply construct your DAO in the test and immediately setJdbcTemplate(mockJdbcTemplate) on it to replace it with your mock.

回答2:

If you are looking for how to mock variable length parameter methods:

Assuming your DAO class also implements RowMapper interface for mocking method queryForObject(string,rowMapper,Object...)

    JdbcTemplate jdbcTemplateMock = Mockito.mock(JdbcTemplate.class);     ReflectionTestUtils.setField(yourDao, "jdbcTemplate", jdbcTemplateMock);     Mockito.when(jdbcTemplateMock.queryForObject(Mockito.anyString(),Mockito.any(dao.getClass()) ,Mockito.anyVararg())).thenReturn(entity); 

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