/// <summary>
/// Get how much time is left of an assignment in terms of days, hours, minutes or second,
/// depending on how much time is left
/// </summary>
public string GetAssignmentTimeRemaining(StudentAssignmentViewModel assignment)
{
var timeRemaining = String.Empty;
if (assignment.StartTime.HasValue && assignment.EndTime.HasValue)
{
if (0 < assignment.EndTime.Value.CompareTo(DateTime.Now))
{
var remainingTimeSpan = new TimeSpan(assignment.EndTime.Value.Ticks - DateTime.Now.Ticks);
if (0 < remainingTimeSpan.Days)
{
timeRemaining = remainingTimeSpan.Days.ToString();
timeRemaining += (remainingTimeSpan.Days == 1 ? " day left" : " days left");
}
else if (0 < remainingTimeSpan.Hours)
{
timeRemaining = remainingTimeSpan.Hours.ToString();
timeRemaining += (remainingTimeSpan.Hours == 1 ? " hour left" : " hours left");
}
else if (0 < remainingTimeSpan.Minutes)
{
timeRemaining = remainingTimeSpan.Minutes.ToString();
timeRemaining += (remainingTimeSpan.Minutes == 1 ? " minute left" : " minutes left");
}
else if (0 < remainingTimeSpan.Seconds)
{
timeRemaining = remainingTimeSpan.Seconds.ToString();
timeRemaining += (remainingTimeSpan.Seconds == 1 ? " second left" : " seconds left");
}
}
}
return(timeRemaining);
}
public void TestRefreshCommandSucceeded()
{
var studentAssignmentToReturn = new StudentAssignment();
var dialogShown = false;
var stubIDialogService = new StubIDialogService();
stubIDialogService.ShowAsync(async message => dialogShown = true);
var refreshRequested = false;
var stubIStudentService = new StubIStudentAssignmentService();
stubIStudentService.GetAsync(async id => {
refreshRequested = true;
return(new ServiceResult <StudentAssignment> {
Status = ServiceResultStatus.OK,
Result = studentAssignmentToReturn
});
});
var studentAssignmentViewModel =
new StudentAssignmentViewModel(stubIDialogService,
stubIStudentService, null, null);
studentAssignmentViewModel.RefreshCommand.Execute(null);
Assert.IsFalse(dialogShown);
Assert.IsTrue(refreshRequested);
Assert.AreSame(studentAssignmentToReturn,
studentAssignmentViewModel.StudentAssignment);
}
public void TestSubmitCommandInvalidUrl()
{
var dialogShown = false;
var messageShown = "";
var stubIDialogService = new StubIDialogService();
stubIDialogService.ShowAsync(async message => {
dialogShown = true;
messageShown = message;
});
var studentAssignmentViewModel =
new StudentAssignmentViewModel(stubIDialogService, null, null, null);
studentAssignmentViewModel.StudentAssignment = new StudentAssignment {
Solution = "not a url",
Homework = new Homework {
Deadline = DateTime.MaxValue
}
};
studentAssignmentViewModel.SubmitCommand.Execute(null);
Assert.IsTrue(dialogShown);
Assert.AreEqual(UvpClient.App.SolutionUrlErrorMessage,
messageShown);
}
public void TestSubmitCommandOther()
{
var studentAssignmentToSubmit = new StudentAssignment {
HomeworkID = -1, Solution = "http://www.bing.com/",
Homework = new Homework {
Deadline = DateTime.MaxValue
}
};
var messageToShow = "Error Message";
var dialogShown = false;
var messageShown = "";
var stubIDialogService = new StubIDialogService();
stubIDialogService.ShowAsync(async message => {
dialogShown = true;
messageShown = message;
});
StudentAssignment studentAssignmentSubmitted = null;
var submitRequested = false;
var stubIStudentAssignmentService =
new StubIStudentAssignmentService();
stubIStudentAssignmentService.SubmitAsync(async groupAssignment => {
submitRequested = true;
return(new ServiceResult {
Status = ServiceResultStatus.NotFound,
Message = messageToShow
});
});
var studentAssignmentViewModel =
new StudentAssignmentViewModel(stubIDialogService,
stubIStudentAssignmentService, null, null);
studentAssignmentViewModel.StudentAssignment =
studentAssignmentToSubmit;
studentAssignmentViewModel.StudentAssignmentId =
studentAssignmentToSubmit.HomeworkID;
studentAssignmentViewModel.SubmitCommand.Execute(null);
Assert.IsTrue(dialogShown);
Assert.AreEqual(
UvpClient.App.HttpClientErrorMessage + messageToShow,
messageShown);
Assert.IsTrue(submitRequested);
}
public ICollection <StudentAssignmentViewModel> GetStudentResults(string studentId)
{
var assignmentIds = this.context.AssignmentResults
.Where(x => x.StudentId == studentId && x.Stage != 1)
.Select(x => new StudentAssignmentViewModel()
{
Id = x.AssignmentId,
Stage = x.Stage,
Points = x.Points,
MaxPoints = this.context.Assignments
.Where(a => a.Id == x.AssignmentId)
.Select(a => a.Points)
.FirstOrDefault()
})
.ToList();
var assignments = new List <StudentAssignmentViewModel>();
foreach (var assignmentId in assignmentIds)
{
var assignment = this.context.Assignments
.FirstOrDefault(x => x.Id == assignmentId.Id);
if (assignment == null)
{
continue;
}
var assignmentModel = new StudentAssignmentViewModel()
{
AssignmentName = assignment.AssignmentTitle,
DueDate = assignment.DueDate,
Id = assignment.Id,
Signature = assignment.Signature,
Stage = assignmentId.Stage,
Points = assignmentId.Points,
MaxPoints = assignment.Points
};
assignments.Add(assignmentModel);
}
return(assignments);
}
/// <summary>
/// Get an assignment by it's id
/// </summary>
public StudentAssignmentViewModel GetStudentAssignmentById(int assignmentid, string studentid)
{
var group = _db.AssignmentGroups.Where(x => x.UserId == studentid && x.AssignmentId == assignmentid).SingleOrDefault();
var assignment = new StudentAssignmentViewModel();
if (group != null)
{
assignment = new StudentAssignmentViewModel {
Id = group.Assignment.Id,
Course = group.Assignment.CourseInstance.Course.Name,
Name = group.Assignment.Name,
Description = group.Assignment.Description,
StartTime = group.Assignment.StartTime,
EndTime = group.Assignment.EndTime,
MaxCollaborators = group.Assignment.MaxCollaborators,
AssignmentGrade = group.AssignmentGrade,
Collaborators = GetCollaborators(assignmentid, studentid)
};
}
return(assignment);
}
public void TestSubmitCommandUnauthorized()
{
var studentAssignmentToSubmit = new StudentAssignment {
HomeworkID = -1, Solution = "http://www.bing.com/",
Homework = new Homework {
Deadline = DateTime.MaxValue
}
};
var dialogShown = false;
var stubIDialogService = new StubIDialogService();
stubIDialogService.ShowAsync(async message => dialogShown = true);
var submitRequested = false;
var stubIStudentAssignmentService =
new StubIStudentAssignmentService();
stubIStudentAssignmentService.SubmitAsync(async groupAssignment => {
submitRequested = true;
return(new ServiceResult
{
Status = ServiceResultStatus.Unauthorized
});
});
var studentAssignmentViewModel =
new StudentAssignmentViewModel(stubIDialogService,
stubIStudentAssignmentService, null, null);
studentAssignmentViewModel.StudentAssignment =
studentAssignmentToSubmit;
studentAssignmentViewModel.StudentAssignmentId =
studentAssignmentToSubmit.HomeworkID;
studentAssignmentViewModel.SubmitCommand.Execute(null);
Assert.IsFalse(dialogShown);
Assert.IsTrue(submitRequested);
}
public void TestRefreshCommandOther()
{
var messageToShow = "Error Message";
var messageShown = "";
var dialogShown = false;
var stubIDialogService = new StubIDialogService();
stubIDialogService.ShowAsync(async message => {
dialogShown = true;
messageShown = message;
});
var refreshRequested = false;
var stubIStudentAssignmentService =
new StubIStudentAssignmentService();
stubIStudentAssignmentService.GetAsync(async id => {
refreshRequested = true;
return(new ServiceResult <StudentAssignment> {
Status = ServiceResultStatus.Exception,
Message = messageToShow
});
});
var studentAssignmentViewModel =
new StudentAssignmentViewModel(stubIDialogService,
stubIStudentAssignmentService, null, null);
studentAssignmentViewModel.RefreshCommand.Execute(null);
Assert.IsTrue(dialogShown);
Assert.AreEqual(
UvpClient.App.HttpClientErrorMessage + messageToShow,
messageShown);
Assert.IsTrue(refreshRequested);
}
/// <summary>
/// Check if an assignment's problems are accepted
/// </summary>
public bool IsAssignmentDone(StudentAssignmentViewModel assignment)
{
return(assignment.Problems.All(x => x.IsAccepted));
}
public void TestSubmitCommand()
{
var studentAssignmentToSubmit = new StudentAssignment {
HomeworkID = -1, Solution = "http://www.bing.com/",
Homework = new Homework {
Deadline = DateTime.MaxValue
}
};
var dialogShown = false;
var messageShown = "";
var stubIDialogService = new StubIDialogService();
stubIDialogService.ShowAsync(async message => {
dialogShown = true;
messageShown = message;
});
StudentAssignment studentAssignmentSubmitted = null;
var submitRequested = false;
var stubIStudentAssignmentService =
new StubIStudentAssignmentService();
stubIStudentAssignmentService.SubmitAsync(async groupAssignment => {
submitRequested = true;
studentAssignmentSubmitted = groupAssignment;
return(new ServiceResult
{
Status = ServiceResultStatus.NoContent
});
});
var stubIRootNavigationService = new StubIRootNavigationService();
var backNavigated = false;
stubIRootNavigationService.GoBack(() => backNavigated = true);
var stubITileService = new StubITileService();
var updateRequested = false;
stubITileService.ForceUpdate(() => updateRequested = true);
var studentAssignmentViewModel = new StudentAssignmentViewModel(
stubIDialogService, stubIStudentAssignmentService,
stubIRootNavigationService, stubITileService);
studentAssignmentViewModel.StudentAssignment =
studentAssignmentToSubmit;
studentAssignmentViewModel.StudentAssignmentId =
studentAssignmentToSubmit.HomeworkID;
studentAssignmentViewModel.SubmitCommand.Execute(null);
Assert.IsTrue(dialogShown);
Assert.AreSame(UvpClient.App.SolutionSubmittedMessage,
messageShown);
Assert.IsTrue(submitRequested);
Assert.AreSame(studentAssignmentToSubmit,
studentAssignmentSubmitted);
Assert.IsTrue(backNavigated);
Assert.IsTrue(updateRequested);
}
