Write a JUnit test case for average and min methods below:

class Grade {

private int id;

private String name;

private double point;

// Parameterized constructor

public Grade(int id, String name, double point) {

super();

this.id = id;

this.name = name;

this.point = point;

}

// getters and setters

public int getid() {

return id;

}

public void setid(int id) {

this.id = id;

}

public String getname() {

return name;

}

public void setname(String name) {

this.name = name;

}

public double getpoint() {

return point;

}

public void setpoint(double point) {

this.point = point;

}

}

/* **************************************************************************** */

public class testGrade {

Grade[] grade = new Grade[3];

void popGradeData() {

int ngrades = 3;

for (int i = 0; i < ngrades; i++) {

grade[0] = new Grade(101, "Andy", 95.00);

grade[1] = new Grade(102, "Bob", 85.00);

grade[2] = new Grade(103, "Collin", 75.00);

}

}

// throw Exception if no Grade found

double AvgPoint() throws Exception {

double sum = 0.0;

if (grade.length == 0) {

throw new Exception("** No Grades found **");

} else {

for (int i = 0; i < grade.length; i++) {

sum = sum + grade[i].getpoint();

}

}

return (sum / grade.length);

}

double minPoint() {

double min = grade[0].getpoint();

for (int i = 0; i < grade.length; i++) {

if (min > grade[i].getpoint()) {

min = grade[i].getpoint();

}

}

return min;

}

public static void main(String args[]) throws Exception {

double minPoint;

double AvgPoint;

testGrade g = new testGrade();

g.popGradeData();

AvgPoint = g.AvgPoint();

System.out.println("Average Point:" + AvgPoint);

minPoint = g.minPoint();

System.out.println("Minimum Points:" + minPoint);

}

}