This is the second part of the junit test that I had to post separately as a question on my account.

@Test public void test03a() { Instructor alan = new Instructor("A. Wassyng", 70130, "jackie@eecs.yorku.ca"); Instructor mark = new Instructor("M. Lawford", 70139, "jonathan@yorku.ca"); Participant suyeon = new Participant("S. Y. Lee"); Registration[] suyeonRegistrations = suyeon.getRegistrations(); String report = suyeon.getGPAReport(); /* empty list of registrations to begin with */ assertTrue(suyeonRegistrations.length == 0); /* GPA undefined over an empty list of registrations */ assertEquals("No GPA available yet for S. Y. Lee", report); /* non-registered courses have default marks -1 */ assertTrue(suyeon.marksOf("Intro. to OOP") == -1); assertTrue(suyeon.marksOf("Heavy Metal Music") == -1); assertTrue(suyeon.marksOf("Psychology I") == -1); Registration r1 = new Registration("Intro. to OOP", alan); suyeon.addRegistration(r1); suyeon.addRegistration("Heavy Metal Music"); assertTrue(suyeon.getRegistrations().length == 2 && suyeon.getRegistrations()[0] == r1 && suyeon.getRegistrations()[1].getTitle().equals("Heavy Metal Music") && suyeon.getRegistrations()[1].getInstructor() == null); assertTrue(suyeon.getRegistrations()[0].getMarks() == 0); assertTrue(suyeon.getRegistrations()[1].getMarks() == 0); assertTrue(suyeon.marksOf("Intro. to OOP") == 0); /* now a registered course */ assertTrue(suyeon.marksOf("Heavy Metal Music") == 0); /* now a registered course */ assertTrue(suyeon.marksOf("Psychology I") == -1); /* still a non-registered course */ suyeon.getRegistrations()[1].setInstructor(mark); assertTrue(suyeon.getRegistrations()[1].getInstructor() == mark); assertEquals("S. Y. Lee's GPA of {0 (F), 0 (F)}: 0.0", suyeon.getGPAReport()); suyeon.updateMarks("Intro. to OOP", 61); suyeon.updateMarks("Heavy Metal Music", 79); /* non-existing course -> do nothing */ suyeon.updateMarks("Psychology I", 89); assertTrue(suyeon.getRegistrations()[0].getMarks() == 61); /* Grade: C; GP: 6 */ assertTrue(suyeon.getRegistrations()[1].getMarks() == 79); /* Grade: B; GP: 7 */ assertTrue(suyeon.marksOf("Intro. to OOP") == 61); assertTrue(suyeon.marksOf("Heavy Metal Music") == 79); assertTrue(suyeon.marksOf("Psychology I") == -1); /* GPA = sum of GPs divided by number of courses */ assertEquals("S. Y. Lee's GPA of {6 (C), 7 (B)}: 6.5", suyeon.getGPAReport()); Participant yuna = new Participant("Y. Lee"); yuna.addRegistration(new Registration("Heavy Metal Music", mark)); yuna.addRegistration(new Registration("Intro. to OOP", alan)); /* Q. Can you understand the two occurrences of anonymous objects below? */ yuna.addRegistration(new Registration( "Psychology I", new Instructor("Tom", 70141, "tom@yorku.ca"))); yuna.updateMarks("Heavy Metal Music", 85); yuna.updateMarks("Intro. to OOP", 58); yuna.updateMarks("Psychology I", 66); assertTrue(yuna.getRegistrations()[0].getMarks() == 85); /* Grade: A; GP: 8 */ assertTrue(yuna.getRegistrations()[1].getMarks() == 58); /* Grade: D; GP: 5 */ assertTrue(yuna.getRegistrations()[2].getMarks() == 66); /* Grade: C; GP: 6 */ assertTrue(yuna.marksOf("Heavy Metal Music") == 85); assertTrue(yuna.marksOf("Intro. to OOP") == 58); assertTrue(yuna.marksOf("Psychology I") == 66); assertEquals("Y. Lee's GPA of {8 (A), 5 (D), 6 (C)}: 6.3", yuna.getGPAReport()); assertEquals(suyeon.getRegistrations()[0].getTitle(), yuna.getRegistrations()[1].getTitle()); assertTrue(suyeon.getRegistrations()[0] != yuna.getRegistrations()[1]); assertEquals(suyeon.getRegistrations()[1].getTitle(), yuna.getRegistrations()[0].getTitle()); assertTrue(suyeon.getRegistrations()[1] != yuna.getRegistrations()[0]); /* At the end of the semester, clear registrations of students. */ suyeon.clearRegistrations(); yuna.clearRegistrations(); assertTrue(suyeon.getRegistrations().length == 0 && yuna.getRegistrations().length == 0); assertTrue(suyeon.getGPAReport().equals("No GPA available yet for S. Y. Lee") && yuna.getGPAReport().equals("No GPA available yet for Y. Lee")); String[] courses = {"Intro. to OOP", "Heavy Metal Music", "Psychology I", "Software Design"}; for(int i = 0; i < courses.length; i ++) { assertTrue(suyeon.marksOf(courses[i]) == -1); assertTrue(yuna.marksOf(courses[i]) == -1); } /* Next semester, students may choose to re-take some courses. */ suyeon.addRegistration("Heavy Metal Music"); suyeon.updateMarks("Heavy Metal Music", 99); assertTrue(suyeon.getRegistrations().length == 1); assertEquals("S. Y. Lee's GPA of {9 (A+)}: 9.0", suyeon.getGPAReport()); assertEquals("Heavy Metal Music has not yet been assigned an instructor", suyeon.getRegistrations()[0].getInformation()); } @Test public void test03b() { Participant heeyeon = new Participant("H. Y. Kang"); Registration r1 = new Registration("EECS2001"); Registration r2 = new Registration("EECS2011"); Registration r3 = new Registration("EECS2021"); Registration r4 = new Registration("EECS2031"); Registration r5 = new Registration("EECS1090"); Registration[] list = {r1, r2, r3, r4, r5}; for(int i = 0; i < list.length; i ++) { heeyeon.addRegistration(list[i]); assertTrue(heeyeon.getRegistrations().length == i + 1); assertTrue(heeyeon.getRegistrations()[i] == list[i]); } /* Maximum number of registrations allowed is 5. * Adding beyond the maximum capacity will have no effect. */ heeyeon.addRegistration(new Registration("ECON1000")); heeyeon.addRegistration(new Registration("ECON1010")); assertTrue(heeyeon.getRegistrations().length == 5); assertTrue(heeyeon.getRegistrations()[0] == r1); assertTrue(heeyeon.getRegistrations()[1] == r2); assertTrue(heeyeon.getRegistrations()[2] == r3); assertTrue(heeyeon.getRegistrations()[3] == r4); assertTrue(heeyeon.getRegistrations()[4] == r5); } @Test public void test_04() { OnlineSchool school = new OnlineSchool(); /* courses not existing (yet) */ Participant[] list1 = school.getParticipants("Intro. to OOP"); Participant[] list2 = school.getParticipants("Heavy Metal Music"); Participant[] list3 = school.getParticipants("Chamber Music"); assertTrue(list1.length == 0 && list2.length == 0 && list3.length == 0); Participant alan = new Participant("A. Wassyng"); Participant mark = new Participant("M. Lawford"); Participant tom = new Participant("T. Maibaum"); school.addParticipant(alan); school.addParticipant(mark); school.addParticipant(tom); tom.addRegistration("Heavy Metal Music"); tom.addRegistration("Chamber Music"); tom.addRegistration("Intro. to OOP"); alan.addRegistration("Intro. to OOP"); mark.addRegistration("Heavy Metal Music"); mark.addRegistration("Intro. to OOP"); list1 = school.getParticipants("Intro. to OOP"); list2 = school.getParticipants("Heavy Metal Music"); list3 = school.getParticipants("Chamber Music"); assertTrue(list1.length == 3 && list1[0] == alan && list1[1] == mark && list1[2] == tom); assertTrue(list2.length == 2 && list2[0] == mark && list2[1] == tom); assertTrue(list3.length == 1 && list3[0] == tom); /* non-existing course */ assertTrue(school.getParticipants("How to Make Fish and Chips").length == 0); } /* You may want to write a test similar to test03b: * an online school can be added up to 100 participants. */ }