#31 loan: update application

loan/src/main/java/com/example/loan/controller/ApplicationController.java

@@ -26,4 +26,12 @@ public class ApplicationController extends AbstractController {
     ) {
         return ok(applicationService.get(applicationId));
     }
+
+    @PutMapping("/{applicationId}")
+    public ResponseDto<ApplicationDto.Response> update(
+            @PathVariable Long applicationId,
+            @RequestBody ApplicationDto.Request request
+    ) {
+        return ok(applicationService.update(applicationId, request));
+    }
 }

loan/src/main/java/com/example/loan/service/ApplicationService.java

@@ -7,4 +7,6 @@ public interface ApplicationService {
     ApplicationDto.Response create(ApplicationDto.Request request);
 
     ApplicationDto.Response get(Long applicationId);
+
+    ApplicationDto.Response update(Long applicationId, ApplicationDto.Request request);
 }

loan/src/main/java/com/example/loan/service/ApplicationServiceImpl.java

@@ -35,4 +35,19 @@ public class ApplicationServiceImpl implements ApplicationService {
 
         return modelMapper.map(application, ApplicationDto.Response.class);
     }
+
+    @Override
+    public ApplicationDto.Response update(Long applicationId, ApplicationDto.Request request) {
+        Application application = applicationRepository.findById(applicationId)
+                .orElseThrow(() -> new BaseException(ResultType.SYSTEM_ERROR));
+
+        application.setName(request.getName());
+        application.setCellPhone(request.getCellPhone());
+        application.setEmail(request.getEmail());
+        application.setHopeAmount(request.getHopeAmount());
+
+        applicationRepository.save(application);
+
+        return modelMapper.map(application, ApplicationDto.Response.class);
+    }
 }

loan/src/test/java/com/example/loan/service/ApplicationServiceTest.java

@@ -71,4 +71,26 @@ class ApplicationServiceTest {
 
         assertThat(actual.getApplicationId()).isSameAs(findId);
     }
+
+    @Test
+    void Should_ReturnUpdatedResponseOfExistApplicationEntity_When_RequestUpdateExistApplicationInfo() {
+        Long findId = 1L;
+
+        Application entity = Application.builder()
+                .applicationId(1L)
+                .hopeAmount(BigDecimal.valueOf(50000000))
+                .build();
+
+        ApplicationDto.Request request = ApplicationDto.Request.builder()
+                .hopeAmount(BigDecimal.valueOf(40000000))
+                .build();
+
+        when(applicationRepository.save(ArgumentMatchers.any(Application.class))).thenReturn(entity);
+        when(applicationRepository.findById(findId)).thenReturn(Optional.ofNullable(entity));
+
+        ApplicationDto.Response actual = applicationService.update(findId, request);
+
+        assertThat(actual.getApplicationId()).isSameAs(findId);
+        assertThat(actual.getHopeAmount()).isSameAs(request.getHopeAmount());
+    }
 }