public void StudentCannotEnrolWhenFullyEnrolled()
{
Student student = new Student { Username = "******" };
db.Students.Add(student);
Subject subject1 = new Subject { SubjectNumber = "1", Name = "SubjectOne", MaxEnrolment = 2 };
Subject subject2 = new Subject { SubjectNumber = "2", Name = "SubjectTwo", MaxEnrolment = 2 };
Subject subject3 = new Subject { SubjectNumber = "3", Name = "SubjectThree", MaxEnrolment = 2 };
Subject subject4 = new Subject { SubjectNumber = "4", Name = "SubjectFour", MaxEnrolment = 2 };
Subject subject5 = new Subject { SubjectNumber = "5", Name = "SubjectFive", MaxEnrolment = 2 };
db.Subjects.Add(subject1);
db.Subjects.Add(subject2);
db.Subjects.Add(subject3);
db.Subjects.Add(subject4);
db.Subjects.Add(subject5);
db.SaveChanges();
Student dbStudent = db.Students.FirstOrDefault(s => s.Username == "11012592");
Subject dbSubject1 = db.Subjects.FirstOrDefault(s => s.SubjectNumber == "1");
Subject dbSubject2 = db.Subjects.FirstOrDefault(s => s.SubjectNumber == "2");
Subject dbSubject3 = db.Subjects.FirstOrDefault(s => s.SubjectNumber == "3");
Subject dbSubject4 = db.Subjects.FirstOrDefault(s => s.SubjectNumber == "4");
Subject dbSubject5 = db.Subjects.FirstOrDefault(s => s.SubjectNumber == "5");
_sc.Enrol(dbStudent.Id, dbSubject1.Id);
_sc.Enrol(dbStudent.Id, dbSubject2.Id);
_sc.Enrol(dbStudent.Id, dbSubject3.Id);
_sc.Enrol(dbStudent.Id, dbSubject4.Id);
_sc.Enrol(dbStudent.Id, dbSubject5.Id);
Assert.AreEqual(4, db.Students.FirstOrDefault(s => s.Username == "11012592").EnrolledSubjects.Count);
}
public ActionResult Create(Subject subject, List<int> SelectedPrerequisites)
{
bool subjectInContext = (db.Subjects.FirstOrDefault(s => s.SubjectNumber == subject.SubjectNumber) != null);
ViewBag.allSubjects = new SelectList(db.Subjects.Where(s => s.Active), "Id", "Name");
if (SelectedPrerequisites != null && SelectedPrerequisites.Count > 0)
{
//Get a list of subject where the id is contained within the list of selectedPrerequisites
List<Subject> Prerequisites = db.Subjects.Where(m => SelectedPrerequisites.Contains(m.Id)).ToList();
Prerequisites.ForEach(m => subject.Prerequisites.Add(m));
}
if (!subjectInContext)
{
subject.Active = true;
if (ModelState.IsValid)
{
db.Subjects.Add(subject);
db.SaveChanges();
return RedirectToAction("Index");
}
}
else
{
ModelState.AddModelError(string.Empty, "The subject already exist in the system");
}
return View(subject);
}
public void SubjectMaxEnrollmentNotReached()
{
Subject subject = new Subject() { Active = true, Name = "Apple", MaxEnrolment = 3, SubjectNumber = "1000", Description = "i am an apple" };
Assert.AreEqual(0, subject.EnrolledStudents.Count);
Assert.IsFalse(subject.MaxEnrolmentIsReached());
subject.EnrolledStudents.Add(_students[0]);
Assert.AreEqual(1, subject.EnrolledStudents.Count);
Assert.IsFalse(subject.MaxEnrolmentIsReached());
}
public void SubjectCreation()
{
Subject subject = new Subject() {Active = true, Name = "Apple", MaxEnrolment = 3, SubjectNumber = "1000", Description = "i am an apple"};
Assert.AreEqual(true, subject.Active);
Assert.AreEqual("Apple", subject.Name);
Assert.AreEqual("1000", subject.SubjectNumber);
Assert.AreEqual(3, subject.MaxEnrolment);
Assert.AreEqual("i am an apple", subject.Description);
Assert.AreEqual(0, subject.Prerequisites.Count);
Assert.AreEqual(0, subject.EnrolledStudents.Count);
Assert.AreEqual(2, _subjects.Find(s => s.Name == "Apple and Orange").Prerequisites.Count);
}
public void CheckModelDataTypeForResultCreate()
{
ResultController resultController = new ResultController(ref db);
Subject subject = new Subject() { Active = true, MaxEnrolment = 3, Name = "thisIsTestSubject", SubjectNumber = "123", Description = "" };
db.Subjects.Add(subject);
db.SaveChanges();
ViewResult resultViewResult = (ViewResult)resultController.Create(subject.Id);
Subject addedSubject = (Subject)db.Subjects.FirstOrDefault(a => a.Name == "thisIsTestSubject");
Assert.AreEqual(subject.MaxEnrolment, addedSubject.MaxEnrolment);
Assert.AreEqual(subject.Name, addedSubject.Name);
Assert.AreEqual(subject.SubjectNumber, addedSubject.SubjectNumber);
Assert.AreEqual(subject.Description, addedSubject.Description);
}
public void SubjectMaxEnrollmentHasReached()
{
Subject subject = new Subject() { Active = true, Name = "Apple", MaxEnrolment = 3, SubjectNumber = "1000", Description = "i am an apple" };
Assert.AreEqual(0, subject.EnrolledStudents.Count);
Assert.IsFalse(subject.MaxEnrolmentIsReached());
foreach (Student s in _students.FindAll(s => s.Id <= subject.MaxEnrolment))
{
subject.EnrolledStudents.Add(s);
}
Assert.AreEqual(3, subject.EnrolledStudents.Count);
Assert.IsTrue(subject.MaxEnrolmentIsReached());
}
public void CheckModelDataTypeForResultCreatePostBack()
{
ResultController resultController = new ResultController(ref db);
Subject subject = new Subject() { Active = true, MaxEnrolment = 3, Name = "thisIsTestSubject", SubjectNumber = "123", Description = "" };
db.Subjects.Add(subject);
Student enrollingStudent = new Student() { Username = "******", FullName="TestFullName" };
db.Students.Add(enrollingStudent);
subject.EnrolledStudents.Add(enrollingStudent);
db.SaveChanges();
List<Result> results = new List<Result>();
Subject addedSubject = (Subject)db.Subjects.FirstOrDefault(a => a.Name == "thisIsTestSubject");
//ViewResult resultViewResult = (ViewResult)resultController.Create(results, addedSubject.Id);
}
public void StudentHasEnrolled()
{
Student student = new Student { Username = "******" };
db.Students.Add(student);
Subject subject = new Subject { SubjectNumber = "1", Name = "SubjectOne", MaxEnrolment = 2 };
db.Subjects.Add(subject);
db.SaveChanges();
Student dbStudent = db.Students.FirstOrDefault(s => s.Username == "11012592");
Subject dbSubject = db.Subjects.FirstOrDefault(s => s.SubjectNumber == "1");
_sc.Enrol(dbStudent.Id, dbSubject.Id);
Assert.AreEqual(subject.SubjectNumber, dbStudent.EnrolledSubjects.FirstOrDefault(s => s.SubjectNumber == "1").SubjectNumber);
Assert.AreEqual(subject.Name, dbStudent.EnrolledSubjects.FirstOrDefault(s => s.SubjectNumber == "1").Name);
}
/// <summary>
/// Add a subject to student's enrolledSubject list
/// </summary>
/// <param name="subject"></param>
public void EnrolSubject(Subject subject)
{
EnrolledSubjects.Add(subject);
}
public ActionResult Edit(Subject subject, List<int> PrerequisiteList, int id = 0)
{
List<Subject> SelectedPrerequisites = new List<Subject>();
if (ModelState.IsValid)
{
db.Entry(subject).State = EntityState.Modified;
db.Entry(subject).Collection(m => m.Prerequisites).Load();
subject.Prerequisites.Clear();
if (PrerequisiteList != null && PrerequisiteList.Count > 0)
{
//Get a list of subject where the id is contained within the list of selectedPrerequisites
SelectedPrerequisites = db.Subjects.Where(m => PrerequisiteList.Contains(m.Id)).ToList();
SelectedPrerequisites.ForEach(m => subject.Prerequisites.Add(m));
}
try
{
db.SaveChanges();
return RedirectToAction("Index");
}
catch (DbUpdateConcurrencyException ex)
{
var entry = ex.Entries.Single();
var databaseValues = (Subject)entry.GetDatabaseValues().ToObject();
var clientValues = (Subject)entry.Entity;
if (databaseValues.Active == false)
{
return RedirectToAction("Index");
}
/* Concurrency checking */
ModelState.AddModelError(string.Empty, "The record you attempted to edit "
+ "was modified by another user after you got the original value. The "
+ "edit operation was canceled and the current values in the database "
+ "have been displayed. If you still want to edit this record, click "
+ "the Save button again. Otherwise click the Back to List hyperlink.");
if (databaseValues.SubjectNumber != clientValues.SubjectNumber)
{
ModelState.AddModelError("SubjectNumber", "Current Subject Number: " + databaseValues.SubjectNumber);
}
if (databaseValues.Name != clientValues.Name)
{
ModelState.AddModelError("Name", "Current Value: " + databaseValues.Name);
}
if (databaseValues.MaxEnrolment != clientValues.MaxEnrolment)
{
ModelState.AddModelError("MaxEnrolment", "Current Max Enrolment: " + databaseValues.Name);
}
/* end concurrency checking */
}
}
List<Subject> NonPrerequisites = db.Subjects.ToList().Except(SelectedPrerequisites).ToList();
NonPrerequisites.Remove(db.Subjects.Find(id));
ViewBag.SelectedPrerequisites = new SelectList(SelectedPrerequisites, "Id", "Name");
ViewBag.NonPrerequisites = new SelectList(NonPrerequisites, "Id", "Name");
return View(subject);
}
public ActionResult DeleteConfirmed(Subject subject)
{
try
{
subject.Active = false;
db.Entry(subject).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
catch (DbUpdateConcurrencyException)
{
return RedirectToAction("Delete",
new System.Web.Routing.RouteValueDictionary { { "concurrencyError", true } });
}
}
