PMT-27-added Method to AllocationRepository

src/main/java/de/hmmh/pmt/ApiController.java

@@ -145,25 +145,12 @@ public class ApiController implements DefaultApi {
 
     @Override
     public ResponseEntity<Void> removeEmployeeFromProject(Long id, Long employeeId){
-        if (!projectRepository.existsById(id)) {
-            return ResponseEntity.notFound().build();
+       Optional<Allocation> allocation = allocationRepository.findById(new AllocationId(id, employeeId));
+        if (allocation.isEmpty()){
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
         }
 
-        EmployeeResponseDTO employee;
-        try {
-            employee = apiClientFactory.getEmployeeApi().findById(employeeId);
-        } catch (HttpClientErrorException exception) {
-            return new ResponseEntity<>(exception.getStatusCode().equals(HttpStatus.NOT_FOUND)
-                ? HttpStatus.NOT_FOUND
-                : HttpStatus.SERVICE_UNAVAILABLE);
-        } catch (RestClientException exception) {
-            return new ResponseEntity<>(HttpStatus.INTERNAL_SERVER_ERROR);
-        }
-
-        Allocation allocation = allocationRepository.findById(id);
-        if (allocation.getEmployeeId().equals(employeeId)) {
-            allocationRepository.delete(allocation);
-        }
+        allocationRepository.delete(allocation.get());
         return new ResponseEntity<>(HttpStatus.NO_CONTENT);
     }
 }

src/main/java/de/hmmh/pmt/db/AllocationRepository.java

@@ -7,4 +7,5 @@ import java.util.List;
 public interface AllocationRepository extends JpaRepository<Allocation, AllocationId> {
 
     List<Allocation> findAllByEmployeeId(Long employeeId);
+    List<Allocation> findAllByProjectId(Long projectId);
 }

src/test/java/de/hmmh/pmt/IntegrationTest.java

@@ -164,6 +164,13 @@ public abstract class IntegrationTest {
         allocation1ToOverlapA.setEmployeeId(TEST_EMPLOYEE_A_ID);
         allocation1ToOverlapA.setRole(TEST_QUALIFICATION_A_ID);
         allocations.put("1>overlap-a", allocation1ToOverlapA);
+
+
+        Allocation allocation1ToSpaceStation = new Allocation();
+        allocation1ToSpaceStation.setProject(allProjects.get("space-station"));
+        allocation1ToSpaceStation.setEmployeeId(TEST_EMPLOYEE_A_ID);
+        allocation1ToSpaceStation.setRole(TEST_QUALIFICATION_A_ID);
+        allocations.put("1>space-station", allocation1ToSpaceStation);
         
         allocationRepository.saveAllAndFlush(allocations.values());
         return allocations;

src/test/java/de/hmmh/pmt/project/DeleteEmployeeTest.java

@@ -0,0 +1,59 @@
+package de.hmmh.pmt.project;
+
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.RequestBuilder;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.web.client.HttpClientErrorException;
+
+import de.hmmh.pmt.IntegrationTest;
+import de.hmmh.pmt.db.Allocation;
+import de.hmmh.pmt.db.Project;
+import de.hmmh.pmt.dtos.AddEmployeeDTO;
+
+public class DeleteEmployeeTest extends IntegrationTest {
+    @Test
+    void shouldNotDeleteEmployeeWhenProjectIsNotFound() throws Exception {
+        mvc
+            .perform(delete(baseUri + "/project/1"))
+            .andExpect(status().isNotFound())
+        ;
+    }
+
+    @Test
+    void shouldNotDeleteEmployeeWhenEmployeeIsNotAllocated() throws Exception {
+        when(this.mockEmployeeApi.findById(Mockito.anyLong()))
+            .thenThrow(new HttpClientErrorException(HttpStatus.NOT_FOUND));
+
+        Map<String, Project> allProjects = createTestProjectData();
+
+        this.mvc
+            .perform(getRequest(allProjects.get("research-lab").getId(), 0L))
+            .andExpect(status().isNotFound());
+    }
+
+    @Test
+    void employeeSuccessfullyDeletedFromProject() throws Exception {
+        Map<String, Project> allProjects = createTestProjectData();
+        Map<String, Allocation> allAllocations = createTestAllocationData(allProjects);
+        Allocation allocation = allAllocations.get("1>space-station");
+
+        this.mvc
+            .perform(getRequest(allocation.getProjectId(),allocation.getEmployeeId()))
+            .andExpect(status().isNoContent());
+
+    }
+
+    private RequestBuilder getRequest(Long projectId, Long employeeId) {
+        return MockMvcRequestBuilders
+            .delete(baseUri + "/project/" + projectId + "/employee/" + employeeId);
+    }
+}