[Spring] 코드 Test하기

JUnit

JUnit은 Java 소스를 모듈 단위로 테스트할 수 있는 도구다.

이는 스프링 환경에 이미 Import 되어 있으며 API도 테스트 할 수 있다.

 

실습

 

import com.example.springcalculator.component.Calculator;
import com.example.springcalculator.component.DollarCalc;
import com.example.springcalculator.component.MarketApi;
import com.example.springcalculator.dto.Req;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureWebMvc;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.context.annotation.Import;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultHandlers;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;

@WebMvcTest(CalcControllerApi.class)
@AutoConfigureWebMvc
@Import({Calculator.class, DollarCalc.class})
public class CalcApiContorllerTest {

    @MockBean
    private MarketApi marketApi;

    @Autowired
    private MockMvc mockMvc;

    @BeforeEach
    public void init(){
        Mockito.when(marketApi.connect()).thenReturn(300);
    }

    @Test
    public void sumTest() throws Exception {
        
        mockMvc.perform(
                MockMvcRequestBuilders.get("http://localhost:8080/api/sum")
                        .queryParam("x","10")
                        .queryParam("y","10")
        ).andExpect(
                MockMvcResultMatchers.status().isOk()
        ).andExpect(
                MockMvcResultMatchers.content().string("6000")
        ).andDo(MockMvcResultHandlers.print());
    }

    @Test
    public void minusTest() throws Exception {
        Req req = new Req();
        req.setX(10);
        req.setY(10);

        String json = new ObjectMapper().writeValueAsString(req);

        mockMvc.perform(
                MockMvcRequestBuilders.post("http://localhost:8080/api/minus")
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(json)
        ).andExpect(
                MockMvcResultMatchers.status().isOk()
        ).andExpect(
                MockMvcResultMatchers.jsonPath("$.result").value("0")
                )
                .andExpect(
                        MockMvcResultMatchers.jsonPath("$.response.resultCode").value("Ok")
                )
                .andDo(MockMvcResultHandlers.print());
    }

}