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Feat: add Amiyah Jones' custom class, exception, and objects - Lesson 16 (#518)
* Create README.md Accidentally removed my work the 1st time by merging * Delete lesson_00/amiyahjones/README.md * feat: adds java class fix: changed class name from codeTraining to cjobReadinessLab * rm: old classname * chore: pascal case * feat: adds 5 variables int , string , arrayList as the three different types * feat: adds boolean isSuccessful tracks progress later on for my class * fix: Pascal case JobReadinessLab * feat: adds students * chore: remove comments * feat: adds package * feat: adds enum type , jobreadinesslab constructor * feat: adds 'this' to disambiguate my variables * chore: move strings in one line * feat: adds two member functions * chore: remove 'private' status fom the empty students list * feat: adds more member variables fix: illegal start expression in checkReadiness , and boolean verifyIsSuccessful feat: adds final to variables * fix: changed member function getStudentCount to countStudents * chore: whitespace edit * chore: whitespace adjustment * feat: adds custom exception * feat: adds tests * chore: comment out class objects working on creating a test first * rm: JobReadinessLab class file * fix: rename test to JobReadinessProgram * chore: whitespace feat: adds action to testAddStudent() * rm: student exception feat: adds testAddStudent more simple. * feat: adds tests and corresponding variables in my class * fix: parameters adjusted feat: adds import to JobReadinessProgram class * feat: adds isSuccessful method * feat: adds lecturePerWeek tests and variable * feat: adds getMentor and getSocialSupport * fix: chaged assigned ta from hashmap back to an array list feat: adds ta names , and an illlegal exception for invalid ta * feat: adds displayStudents * feat: adds custom exception * fix: apply throw exception to addStudent tests * feat: initialized MAX_CAPACITY , adds an if statement for conditional statement fix: changed order of logic in addStudent() * feat: adds tests if claassroom is full , assign TA test , display TA. minor details changed as well (parameter , TA) * fix: organization moved isSuccessful at the bottom * fix: tests from failure to success * fix: spotless apply * fix: changes method in jobReadinessprogram to getLecturesPerWeek() chore: changed null values in the constructor * chore: spotless apply in JobReadinessProgram --------- Co-authored-by: AmiyahJo <[email protected]>
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‎lesson_16/objects/objects_app/src/main/java/com/codedifferently/lesson16/amiyahjones/ClassroomFullException.java

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package com.codedifferently.lesson16.amiyahjones;
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public class ClassroomFullException extends Exception {
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public ClassroomFullException(String message) {
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super(message);
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}
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}

‎lesson_16/objects/objects_app/src/main/java/com/codedifferently/lesson16/amiyahjones/JobReadinessProgram.java

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package com.codedifferently.lesson16.amiyahjones;
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import java.util.ArrayList;
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import java.util.List;
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public class JobReadinessProgram {
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private final boolean isSuccessful;
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ArrayList<String> students;
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private final Level readinessLevel;
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private final int lecturePerWeek;
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private static final ArrayList<String> teacherAssistants = new ArrayList<>();
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private String assignedTA;
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private final String mentor;
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private final String socialSupport;
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private final int MAX_CAPACITY = 22;
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static {
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teacherAssistants.add("Rich");
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teacherAssistants.add("Vicente");
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teacherAssistants.add("Jordan");
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}
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enum Level {
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Beginner,
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Intermediate,
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Advanced
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}
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public JobReadinessProgram(Level readinessLevel, boolean isSuccessful, String assignedTA) {
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students = new ArrayList<>();
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this.readinessLevel = readinessLevel;
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this.isSuccessful = isSuccessful;
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lecturePerWeek = 3;
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mentor = "Anthony";
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socialSupport = "Estelle";
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if (teacherAssistants.contains(assignedTA)) {
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this.assignedTA = assignedTA;
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}
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}
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public void addStudent(String studentName) throws ClassroomFullException {
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int classroomCheck = students.size();
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if (classroomCheck == MAX_CAPACITY) {
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throw new ClassroomFullException("Classroom is full");
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}
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students.add(studentName);
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}
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public int getStudentCount() {
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int count = students.size();
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System.out.println("Total students enrolled: " + count);
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return count;
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}
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public void displayStudents() {
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for (String student : students) {
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System.out.println(student);
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}
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}
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public String checkReadiness() {
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return (readinessLevel == Level.Beginner)
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? "Needs more training."
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: "Ready for job applications!";
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}
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public int getLecturesPerWeek() {
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System.out.println("Number of lectures students have: ");
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return lecturePerWeek;
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}
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public String getMentor() {
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return mentor;
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}
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public String getSocialSupport() {
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return socialSupport;
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}
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public List<String> getTeacherAssistants() {
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return new ArrayList<>(teacherAssistants);
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}
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public boolean assignTA(String taName) {
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if (teacherAssistants.contains(taName)) {
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this.assignedTA = taName;
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return true;
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} else {
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throw new IllegalArgumentException("Not a TA. Please choose from: " + getTeacherAssistants());
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}
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}
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public void displayAssignedTA() {
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if (assignedTA != null) {
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System.out.println("Assigned Teacher Assistant: " + assignedTA);
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} else {
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System.out.println("No Teacher Assistant assigned.");
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}
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}
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public Boolean verifyIsSuccessful() {
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if (isSuccessful) {
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System.out.println("Congraulations! You made it through your journey!");
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} else {
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System.out.println("At least you got to know what software engineering is like!");
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}
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return isSuccessful;
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}
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}

‎lesson_16/objects/objects_app/src/test/java/com/codedifferently/lesson16/amiyahjones/JobReadinessProgramTest.java

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package com.codedifferently.lesson16.amiyahjones;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import com.codedifferently.lesson16.amiyahjones.JobReadinessProgram.Level;
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import org.junit.jupiter.api.Test;
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public class JobReadinessProgramTest {
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@Test
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void testAddStudent() throws ClassroomFullException {
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// Arrange
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JobReadinessProgram program = new JobReadinessProgram(Level.Beginner, false, "rich");
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// Act
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program.addStudent("John");
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// Assert
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assertEquals(program.getStudentCount(), 1);
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}
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@Test
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void testGetStudentCount() throws ClassroomFullException {
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// Arrange
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JobReadinessProgram program = new JobReadinessProgram(Level.Advanced, true, "vicente");
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program.addStudent("John");
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// Act
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int actualCount = program.getStudentCount();
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// Assert
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int expectedCount = 1;
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assertEquals(expectedCount, actualCount);
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}
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@Test
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void testClassroomFullException() {
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// Arrange
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JobReadinessProgram program = new JobReadinessProgram(Level.Beginner, true, "Jordan");
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// Act
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try {
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for (int i = 1; i <= 23; i++) {
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program.addStudent("Student " + i);
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}
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} catch (ClassroomFullException e) {
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System.out.println(e.getMessage());
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}
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// Assert
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int currentCount = program.getStudentCount();
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assert (currentCount == 22);
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}
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@Test
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void testCheckReadinessBeginner() {
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JobReadinessProgram student = new JobReadinessProgram(Level.Beginner, true, null);
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String result = student.checkReadiness();
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assertEquals("Needs more training.", result);
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}
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@Test
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void testCheckReadinessIntermediate() {
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JobReadinessProgram student = new JobReadinessProgram(Level.Intermediate, true, null);
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String result = student.checkReadiness();
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assertEquals("Ready for job applications!", result);
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}
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@Test
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void testCheckReadinessAdvanced() {
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JobReadinessProgram student = new JobReadinessProgram(Level.Advanced, true, "vicente");
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String result = student.checkReadiness();
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assertEquals("Ready for job applications!", result);
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}
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@Test
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void testVerifyIfSuccessful() {
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JobReadinessProgram graduate = new JobReadinessProgram(Level.Intermediate, true, "rich");
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var graduation = graduate.verifyIsSuccessful();
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assertEquals(true, graduation);
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}
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@Test
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void testLecturePerWeek() {
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JobReadinessProgram program = new JobReadinessProgram(Level.Advanced, true, "rich");
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var lecturesAttended = program.getLecturesPerWeek();
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assertEquals(3, lecturesAttended);
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}
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@Test
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void testGetMentor() {
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JobReadinessProgram program = new JobReadinessProgram(Level.Beginner, true, "jordan");
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var AssignedMentor = program.getMentor();
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assertEquals("Anthony", AssignedMentor);
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}
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@Test
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void testGetSocialSupport() {
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JobReadinessProgram program = new JobReadinessProgram(Level.Beginner, true, "vicente");
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var SocialSupport = program.getSocialSupport();
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assertEquals("Estelle", SocialSupport);
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}
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@Test
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void testGetTeacherAssistants() {
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JobReadinessProgram program = new JobReadinessProgram(Level.Beginner, true, "vicente");
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var teacherAssitant = program.getTeacherAssistants();
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assertEquals(program.getTeacherAssistants(), teacherAssitant);
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}
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@Test
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void testAssignTA() {
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JobReadinessProgram program = new JobReadinessProgram(Level.Beginner, true, "Jordan");
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boolean result = program.assignTA("Vicente");
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assert (result == true);
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try {
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program.assignTA("Invalid TA");
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} catch (IllegalArgumentException e) {
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System.out.println(e.getMessage());
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}
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}
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@Test
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void testDisplayAssignedTA() {
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JobReadinessProgram program = new JobReadinessProgram(Level.Advanced, true, "rich");
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program.displayAssignedTA();
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JobReadinessProgram emptyProgram = new JobReadinessProgram(Level.Beginner, true, "Invalid TA");
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emptyProgram.displayAssignedTA();
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}
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}

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