Given class Student, create a JUnit class, labeled TestStudent, to test the Stud

Question

Given class Student, create a JUnit class, labeled TestStudent, to test the Student class. Class Student has three constructor, and therefore I want you to have 3 tests, one for each constructor.

public Student() , test that firstName & lastName are null

public Student(String fName, String lName ), test that firstName equals fName and lastName equals lName

public Student(String fName, String lName, double gpax ), test that firstName equals fName and lastName equals lName and gpa == gpax.

public class Student
{
private String firstName;
private String lastName;
private double gpa;

public Student()
{
firstName = null;
lastName = null;
}

public Student(String fName, String lName )
{
firstName = fName;
lastName = lName;
}
public Student(String fName, String lName, double gpa )
{
firstName = fName;
lastName = lName;
this.gpa = gpa;
}
public void setFirstName(String newName) {firstName = newName; }
public void setLastName(String newName){ lastName = newName;}
public void setGpa(double newGpa){ gpa = newGpa;}

public String getFirstName() { return firstName; }
public String getLastName() { return lastName;}
public double getGpa() { return gpa;}
}

Explanation / Answer

import static org.junit.Assert.*;

import org.junit.Test;

public class TestStudent {

   public class Student
   {
   private String firstName;
   private String lastName;
   private double gpa;
     
   public Student()
   {
   firstName = null;
   lastName = null;
   }
     
   public Student(String fName, String lName )
   {
   firstName = fName;
   lastName = lName;
   }
   public Student(String fName, String lName, double gpa )
   {
   firstName = fName;
   lastName = lName;
   this.gpa = gpa;
   }
   }
  
  
   @Test
   public void testStudent() {
       Student student = new Student();
       assertEquals("First Name is NULL", null, student.firstName);
       assertEquals("Last Name is NULL", null, student.lastName);
   }

   @Test
   public void testStudentStringString() {
       Student student = new Student("hello","world");
       assertEquals("firstName=fName", "hello", student.firstName);
       assertEquals("lastname=LName", "world", student.lastName);
   }

   @SuppressWarnings("deprecation")
   @Test
   public void testStudentStringStringDouble() {
       Student student = new Student("hello","world",10.2);
       assertEquals("firstName=fName", "hello", student.firstName);
       assertEquals("lastname=LName", "world", student.lastName);
       assertEquals(10.2, student.gpa, 0.00001);

   }
   public static void main(String[] args) {
   }

}

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.