需要测试用例才能达到 85% 的测试覆盖率

问：

在部署 spring boot 应用程序时，我遇到了声纳扫描问题。为了解决这个问题，我需要写出 85% 的测试覆盖率。我为我的服务层写了一些测试用例，但测试覆盖率的结果仍然是 72.1%。我想要一些测试用例，我可以将它们添加到我的服务层测试中。

JoinQueryService 层：

@Service
public class JoinQueryService {

    @Resource
    private EmployeeRepository employeeRepository;

    public List<DeptEmpDto> getCrediProduct(DeptEmpDto input) {
        List<DeptEmpDto> list=null;
        if (!input.getEmpName().isEmpty() && input.getEmpEmail().isEmpty()){
            list = employeeRepository.fetchEmpDeptDataInnerJoinByName(input.getEmpName());
        }else if(input.getEmpName().isEmpty() && !input.getEmpEmail().isEmpty()){
            list = employeeRepository.fetchEmpDeptDataInnerJoinByEmail(input.getEmpEmail());
        }else if(!input.getEmpName().isEmpty() && !input.getEmpEmail().isEmpty()){
            list = employeeRepository.fetchEmpDeptDataInnerJoin(input.getEmpName(), input.getEmpEmail());
        }else {
            throw new EmployeeDataNotFoundException();
        }
        return list;
    }

    public String deleteCreditProduct(DeptEmpDto input){
        if (!input.getEmpName().isEmpty() && input.getEmpEmail().isEmpty()){
            employeeRepository.deleteEmpDeptDataInnerJoinByName(input.getEmpName());
        }else if(input.getEmpName().isEmpty() && !input.getEmpEmail().isEmpty()){
            employeeRepository.deleteEmpDeptDataInnerJoinByEmail(input.getEmpEmail());
        }else if(!input.getEmpName().isEmpty() && !input.getEmpEmail().isEmpty()){
            employeeRepository.deleteEmpDeptDataInnerJoin(input.getEmpName(), input.getEmpEmail());
        }else {
            throw new EmployeeDataNotFoundException();
        }
        return "Deleted Successfully";
    }

}

这已经为我的服务测试层编写了测试用例。

@RunWith(MockitoJUnitRunner.class)
public class JoinQueryServiceTest {

    @Mock
    private EmployeeRepository mockEmployeeRepository;

    @InjectMocks
    private JoinQueryService joinQueryServiceUnderTest;

    @Test
    public void testGetCrediProduct() {
        // Setup
        final DeptEmpDto input = new DeptEmpDto("empDept", "empName", "empEmail", "empAddress");

        // Configure EmployeeRepository.fetchEmpDeptDataInnerJoinByName(...).
        final List<DeptEmpDto> list = List.of(new DeptEmpDto("empDept", "empName", "empEmail", "empAddress"));
        when(mockEmployeeRepository.fetchEmpDeptDataInnerJoinByName("empName")).thenReturn(list);

        // Configure EmployeeRepository.fetchEmpDeptDataInnerJoinByEmail(...).
        final List<DeptEmpDto> list1 = List.of(new DeptEmpDto("empDept", "empName", "empEmail", "empAddress"));
        when(mockEmployeeRepository.fetchEmpDeptDataInnerJoinByEmail("empEmail")).thenReturn(list1);

        // Configure EmployeeRepository.fetchEmpDeptDataInnerJoin(...).
        final List<DeptEmpDto> list2 = List.of(new DeptEmpDto("empDept", "empName", "empEmail", "empAddress"));
        when(mockEmployeeRepository.fetchEmpDeptDataInnerJoin("empName", "empEmail")).thenReturn(list2);

        // Run the test
        final List<DeptEmpDto> result = joinQueryServiceUnderTest.getCrediProduct(input);

        // Verify the results
    }

    @Test
    public void testGetCrediProduct_EmployeeRepositoryFetchEmpDeptDataInnerJoinByNameReturnsNoItems() {
        // Setup
        final DeptEmpDto input = new DeptEmpDto("empDept", "empName", "empEmail", "empAddress");
        when(mockEmployeeRepository.fetchEmpDeptDataInnerJoinByName("empName")).thenReturn(Collections.emptyList());

        // Run the test
        final List<DeptEmpDto> result = joinQueryServiceUnderTest.getCrediProduct(input);

        // Verify the results
        assertEquals(Collections.emptyList(), result);
    }

    @Test
    public void testGetCrediProduct_EmployeeRepositoryFetchEmpDeptDataInnerJoinByEmailReturnsNoItems() {
        // Setup
        final DeptEmpDto input = new DeptEmpDto("empDept", "empName", "empEmail", "empAddress");
        when(mockEmployeeRepository.fetchEmpDeptDataInnerJoinByEmail("empEmail")).thenReturn(Collections.emptyList());

        // Run the test
        final List<DeptEmpDto> result = joinQueryServiceUnderTest.getCrediProduct(input);

        // Verify the results
        assertEquals(Collections.emptyList(), result);
    }

    @Test
    public void testGetCrediProduct_EmployeeRepositoryFetchEmpDeptDataInnerJoinReturnsNoItems() {
        // Setup
        final DeptEmpDto input = new DeptEmpDto("empDept", "empName", "empEmail", "empAddress");
        when(mockEmployeeRepository.fetchEmpDeptDataInnerJoin("empName", "empEmail")).thenReturn(
                Collections.emptyList());

        // Run the test
        final List<DeptEmpDto> result = joinQueryServiceUnderTest.getCrediProduct(input);

        // Verify the results
        assertEquals(Collections.emptyList(), result);
    }

    @Test
    public void testDeleteCreditProduct() {
        // Setup
        final DeptEmpDto input = new DeptEmpDto("empDept", "empName", "empEmail", "empAddress");

        // Run the test
        final String result = joinQueryServiceUnderTest.deleteCreditProduct(input);

        // Verify the results
        assertEquals("Deleted Successfully", result);
        verify(mockEmployeeRepository).deleteEmpDeptDataInnerJoinByName("empName");
        verify(mockEmployeeRepository).deleteEmpDeptDataInnerJoinByEmail("empEmail");
        verify(mockEmployeeRepository).deleteEmpDeptDataInnerJoin("empName", "empEmail");
    }
}

我想要更多的测试用例来解决我的问题，覆盖率应该至少从 72.1% 增加到 85%。 请根据上面的服务层为我提供更多测试用例。