JUnit test for RestController with JDBCTemplate in SpringBoot - spring-boot

Question

My Controller is something like below :
#Autowired
JdbcTemplate jdbcTemplate;
#RequestMapping(value="/1",method=RequestMethod.POST)
public ResponseEntity<List<Map<String, Object>>> abc(#RequestBody String[] arr) {
List<Map<String, Object>> result =jdbcTemplate.queryForList("select * from Table_Name where COL1='"+arr[1]+"' and COL2='"+arr[2]+"' order by COL3");
return new ResponseEntity<List<Map<String,Object>>>(result,HttpStatus.OK);
}
I wrote the test class as below :
#RunWith(SpringJUnit4ClassRunner.class)
#SpringBootTest(classes = MainClass.class)
#WebAppConfiguration
public class TestWebApplication {
protected MockMvc mvc;
#Autowired
WebApplicationContext webApplicationContext;
protected void setUp() {
mvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
}
#Test
public void testabc() throws Exception{
mvc.perform(post("/1").andExpect(status().isOk()).andExpect(content().contentType("application/json;charset=UTF-8")));
}
Getting error at andExpect, asking to cast that method.
Please anyone help me out in writing Junit test case for JDBC template.
Thanks In Advance.

Answer 1

Updated the test class to below :
#RunWith(SpringJUnit4ClassRunner.class)
#SpringBootTest(classes = MainClass.class)
#WebAppConfiguration
public class TestWebApplication {
#Autowired
private WebApplicationContext webApplicationContext;
private MockMvc mockMvc;
#Before
public void setUp() {
mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
}
#Test
public void testabc() throws Exception{
String[] arr ={"A","B"};
ObjectMapper mapper = new ObjectMapper();
mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, false);
ObjectWriter ow = mapper.writer().withDefaultPrettyPrinter();
String requestJson=ow.writeValueAsString(arr );
mockMvc.perform( post("/1").contentType( MediaType.APPLICATION_JSON).content(requestJson));
}