Question

Your line manager has instructed you to write unit tests to determine the code coverage in the student management application. You are required to create a test package within the application you created in Section A, which will contain the required unit tests.
You are required to write the following unit tests:

TEST NAME: TEST PURPOSE:
TESTSAVESTUDENT(). To supply the student ID, name, age,email,and course to the save the student method.The test will determine whether the correct student will be save to memory.
TEST NAME : Test Purpose:
TestSearchStudent(). To supply the student id to the search student method.The test will determine that the correct student details have been returned.
TEST NAME: TEST PURPOSE:
TestSearchStudent_StudentNotFound(): To supply an incorrect student ID to the search method.The test will determine that no student no student was found
TEST NAME: TEST PURPOSE:
TestDeleteStudent(). To supply the student ID to the delete student method.The test will determine that the student has been successfully deleted.
TEST NAME: TEST PURPOSE:
TestDeleteStudent_StudentNotFound(). TO supply an incorrect student ID to the delete student method .The test will determine that no student could be found to delete.
TEST NAME: TEST PURPOSE:
TestStudentAge_StudentAgeValid(). To supply a valid student age to the student age method.The test will determine that the student age is valid.
TEST NAME: TEST PURPOSE:
TestStudentAge_StudentAgeInvalid(). To supply an invalid student age to the student age method.The test will determine that the students age is less than 16.
TEST NAME: TEST PURPOSE:
TestStudentAge_StudentAgeInvalidCharacter(). To supply an invalid character to the student age method.The test will determine that the student age supplied is not a number.

In java

Answer 1

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;

import org.junit.Before;
import org.junit.Test;

public class StudentManagementApplicationTest {
private StudentManagementApplication studentManagementApplication;

@Before
public void setUp() {
studentManagementApplication = new StudentManagementApplication();
}

@Test
public void testSaveStudent() {
String studentId = "123";
String name = "John Doe";
int age = 20;
String email = "[email protected]";
String course = "Computer Science";

studentManagementApplication.saveStudent(studentId, name, age, email, course);

assertNotNull(studentManagementApplication.getStudent(studentId));
}

@Test
public void testSearchStudent() {
String studentId = "123";
String name = "John Doe";
int age = 20;
String email = "[email protected]";
String course = "Computer Science";

studentManagementApplication.saveStudent(studentId, name, age, email, course);

Student student = studentManagementApplication.searchStudent(studentId);

assertEquals(studentId, student.getStudentId());
assertEquals(name, student.getName());
assertEquals(age, student.getAge());
assertEquals(email, student.getEmail());
assertEquals(course, student.getCourse());
}

@Test
public void testSearchStudent_StudentNotFound() {
String studentId = "456";

Student student = studentManagementApplication.searchStudent(studentId);

assertNull(student);
}

@Test
public void testDeleteStudent() {
String studentId = "123";
String name = "John Doe";
int age = 20;
String email = "[email protected]";
String course = "Computer Science";

studentManagementApplication.saveStudent(studentId, name, age, email, course);

boolean result = studentManagementApplication.deleteStudent(studentId);

assertTrue(result);
assertNull(studentManagementApplication.getStudent(studentId));
}

@Test
public void testDeleteStudent_StudentNotFound() {
String studentId = "456";

boolean result = studentManagementApplication.deleteStudent(studentId);

assertFalse(result);
}

@Test
public void testStudentAge_StudentAgeValid() {
int age = 20;

boolean result = studentManagementApplication.isValidAge(age);

assertTrue(result);
}

@Test
public void testStudentAge_StudentAgeInvalid() {
int age = 15;

boolean result = studentManagementApplication.isValidAge(age);

assertFalse(result);
}

@Test
public void testStudentAge_StudentAgeInvalidCharacter() {
String age = "twenty";

boolean result = studentManagementApplication.isValidAge(age);

assertFalse(result);
}
}