PMT-40: Write Tests for Endpoint Implementation

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

@@ -241,16 +241,19 @@ public class ApiController implements DefaultApi {
 
     @Override
     public ResponseEntity<EmployeeProjectsDTO> getAListOfAllProjectsFromASpecificEmployee(Long id) {
+        ApiTools.CheckEmployeeRecord employeeRecord = apiTools.checkEmployeeExists(id);
+        if (employeeRecord.status() != HttpStatus.OK) {
+            return new ResponseEntity<>(employeeRecord.status());
+        }
+
         List<Allocation> allocationsByEmployee = allocationRepository.findAllByEmployeeId(id);
 
-        Set<Project> projects = allocationsByEmployee.stream()
-                .map(Allocation::getProject)
-                .collect(Collectors.toSet());
-
         EmployeeProjectsDTO response = new EmployeeProjectsDTO();
-        for (Project project : projects) {
-            response.addProjectsItem(mapper.mapProject(project));
+        response.setProjects(new ArrayList<>());
+        for (Allocation allocation : allocationsByEmployee) {
+            response.addProjectsItem(mapper.mapProject(allocation.getProject()));
         }
-        return new ResponseEntity<>(HttpStatus.OK);
+
+        return ResponseEntity.ok(response);
     }
 }

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

@@ -0,0 +1,74 @@
+package de.hmmh.pmt.project;
+
+import de.hmmh.pmt.IntegrationTest;
+import de.hmmh.pmt.db.Allocation;
+import de.hmmh.pmt.db.Project;
+import de.hmmh.pmt.employee.dtos.EmployeeResponseDTO;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.HttpClientErrorException;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.hamcrest.Matchers.empty;
+import static org.hamcrest.Matchers.hasSize;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+public class GetAllProjectsByEmployeeTest extends IntegrationTest {
+
+    @Test
+    void successfullyGetAllProjectsByEmployee() throws Exception {
+        when(this.mockEmployeeApi.findById(Mockito.anyLong()))
+                .thenReturn(new EmployeeResponseDTO());
+
+        Map<String, Project> allProjects = createTestProjectData();
+        Map<String, Allocation> allAllocations = createTestAllocationData(allProjects);
+
+        List<Allocation> allocations = allAllocations
+                .values()
+                .stream()
+                .filter(allocation -> allocation.getEmployeeId().equals(TEST_EMPLOYEE_A_ID))
+                .toList();
+
+        mvc
+                .perform(get(baseUri + "/employye/" + TEST_EMPLOYEE_A_ID + "/projects"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.projects", hasSize(allocations.size())))
+                .andExpect(jsonPath("$.projects[*].id").exists())
+                .andExpect(jsonPath("$.projects[*].name").exists())
+                .andExpect(jsonPath("$.projects[*].goal").exists())
+                .andExpect(jsonPath("$.projects[*].customerId").exists())
+                .andExpect(jsonPath("$.projects[*].administratorId").exists())
+                .andExpect(jsonPath("$.projects[*].plannedEnd").exists())
+                .andExpect(jsonPath("$.projects[*].realEnd").exists());
+    }
+
+    @Test
+    void shouldReturnEmptyListWhenNoAllocationsFound() throws Exception {
+        when(this.mockEmployeeApi.findById(Mockito.anyLong()))
+                .thenReturn(new EmployeeResponseDTO());
+
+        createTestProjectData();
+
+        mvc
+                .perform(get(baseUri + "/employye/" + TEST_EMPLOYEE_A_ID + "/projects"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.projects", empty()));
+    }
+
+    @Test
+    void shouldReturnNotFoundWhenEmployeeDoesNotExist() throws Exception {
+        when(this.mockEmployeeApi.findById(Mockito.anyLong()))
+                .thenThrow(new HttpClientErrorException(HttpStatus.NOT_FOUND));
+
+        mvc
+                .perform(get(baseUri + "/employye/0/projects"))
+                .andExpect(status().isNotFound());
+    }
+}