public void TestComparerEmptyList()
{
var comparer = new MoreLikeThisComparer("Math", "1");
var cards = new List <ItemCardViewModel>();
var ordered = cards.OrderBy(c => c, comparer).ToList();
Assert.NotNull(ordered);
Assert.Empty(ordered);
}
public void TestComparerNullSubject()
{
var comparer = new MoreLikeThisComparer(null, "1");
var card1 = ItemCardViewModel.Create(subjectCode: "Math", claimCode: "1");
var card2 = ItemCardViewModel.Create(subjectCode: "Math", claimCode: "2");
var card3 = ItemCardViewModel.Create(subjectCode: "Ela", claimCode: "2");
var cards = new List <ItemCardViewModel>()
{
card2, card1, card3
};
var ordered = cards.OrderBy(c => c, comparer).ToList();
Assert.NotNull(ordered);
Assert.Equal(cards.Count, ordered.Count);
}
/// <summary>
/// Gets up to 3 items same grade, grade above, and grade below. All items
/// </summary>
/// <param name="grade"></param>
/// <param name="subject"></param>
/// <param name="claim"></param>
public MoreLikeThisViewModel GetMoreLikeThis(SampleItem sampleItem)
{
var subjectCode = sampleItem.Subject.Code;
var claimCode = sampleItem.Claim?.Code;
var grade = sampleItem.Grade;
var itemKey = sampleItem.ItemKey;
var bankKey = sampleItem.BankKey;
var matchingSubjectClaim = context.ItemCards.Where(i => i.SubjectCode == subjectCode && i.ClaimCode == claimCode);
int numExpected = context.AppSettings.SettingsConfig.NumMoreLikeThisItems;
var comparer = new MoreLikeThisComparer(subjectCode, claimCode);
bool isHighSchool = GradeLevels.High.Contains(grade);
GradeLevels gradeBelow = isHighSchool ? GradeLevels.Grade8 : grade.GradeBelow();
GradeLevels gradeAbove = grade.GradeAbove();
IEnumerable <ItemCardViewModel> cardsGradeAbove = null;
// Only display above if not a high school grade
if (!isHighSchool)
{
// take grade 11 if gradeabove is high school (only high school items are grade 11)
gradeAbove = GradeLevels.High.Contains(gradeAbove) ? GradeLevels.Grade11 : gradeAbove;
cardsGradeAbove = context.ItemCards
.Where(i => i.Grade == gradeAbove)
.OrderBy(i => i, comparer)
.Take(numExpected);
}
var cardsSameGrade = context.ItemCards
.Where(i => i.Grade == grade && i.ItemKey != itemKey)
.OrderBy(i => i, comparer)
.Take(numExpected);
var cardsGradeBelow = context.ItemCards
.Where(i => i.Grade == gradeBelow)
.OrderBy(i => i, comparer)
.Take(numExpected);
var moreLikeThisVM = new MoreLikeThisViewModel(
ToColumn(cardsGradeBelow, gradeBelow),
ToColumn(cardsSameGrade, grade),
ToColumn(cardsGradeAbove, gradeAbove)
);
return(moreLikeThisVM);
}
