Junit how to achieve100% coverage for Model class - spring

Question

I have a model class:
#Builder
#Data
#Entity
#AllArgsConstructor
#NoArgsConstructor
public class Employee {
#GeneratedValue(strategy = GenerationType.AUTO)
#Type(type="uuid-char")
#Column(updatable = false, nullable = false, unique = true)
#Id
private UUID id;
#Column(updatable = true, nullable = false, unique = true)
#Email(message = "Enter a valid email")
private String email;
#NotNull(message = "First name cannot be empty")
#Size(min = 3, message = "First name character must be more than 3!")
private String firstName;
#Size(min = 3, message = "Last name character must be more than 3!")
private String lastName;
#Range(min = 21, max = 55, message = "Age must be between 21 and 55")
private int age;
#JsonIgnore
private Double accBalance;
#NotNull(message = "Gender cannot be empty")
private String gender;
#NotNull(message = "Country cannot be empty")
private String country;
#JsonProperty("Job Scope")
private String designation;
#CreationTimestamp
private Date createdAt;
#DateTimeFormat
private Date birthDate;
}
And this is my test class:
class EmployeeTest {
#Test
public void testObjectMethod() {
Employee object = new Employee();
object.equals(new Employee());
object.hashCode();
object.toString();
}
#Test
public void testAll() {
Employee object = new Employee();
object.equals(Employee.builder().build());
}
}
And this is my coverage. Basically it only covers 73.8%. What other tests do I need to do to achieve 100%? As this covers quite a lot and doesn't need much of thinking, I would like to target 100%. Appreciate any help or pointers.
coverage

Answer 1

You need to do following
write test for equals
write test for hashcode
write test case for constructor no-arg and all arg
test case for setter and getter for all attribute
you can write assertNotNull for hashCode various tests.