public async Task TwoCardsWithLanguages()
{
var db = DbHelper.GetEmptyTestDB();
var french = await CardLanguagHelper.CreateAsync(db, "Français");
var otherLanguage = await CardLanguagHelper.CreateAsync(db, RandomHelper.String());
var user = await UserHelper.CreateInDbAsync(db);
var deck = await DeckHelper.CreateAsync(db, user);
var frenchCreatedCard = await CardHelper.CreateAsync(db, user, language : french);
var otherLanguageCard = await CardHelper.CreateAsync(db, user, language : otherLanguage);
await DeckHelper.AddNeverLearntCardAsync(db, deck, frenchCreatedCard.Id);
await DeckHelper.AddNeverLearntCardAsync(db, deck, otherLanguageCard.Id);
using var dbContext = new MemCheckDbContext(db);
var request = new GetUnknownCardsToLearn.Request(user, deck, Array.Empty <Guid>(), Array.Empty <Guid>(), 10);
var cards = await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request);
Assert.IsTrue(cards.Cards.Single(card => card.CardId == frenchCreatedCard.Id).IsInFrench);
Assert.IsFalse(cards.Cards.Single(card => card.CardId == otherLanguageCard.Id).IsInFrench);
}
public async Task OrderingOfNeverLearnt()
{
var db = DbHelper.GetEmptyTestDB();
var user = await UserHelper.CreateInDbAsync(db);
var deck = await DeckHelper.CreateAsync(db, user, algorithmId : DefaultHeapingAlgorithm.ID);
var randomDate = RandomHelper.Date();
var cardAddedLater = await CardHelper.CreateAsync(db, user);
await DeckHelper.AddNeverLearntCardAsync(db, deck, cardAddedLater.Id, randomDate.AddDays(1));
for (int i = 0; i < 9; i++)
{
var card = await CardHelper.CreateAsync(db, user);
await DeckHelper.AddNeverLearntCardAsync(db, deck, card.Id, randomDate);
}
using var dbContext = new MemCheckDbContext(db);
var request = new GetUnknownCardsToLearn.Request(user, deck, Array.Empty <Guid>(), Array.Empty <Guid>(), 3);
var downloadedCards = (await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request)).Cards.Select(c => c.CardId).ToImmutableHashSet();
Assert.IsFalse(downloadedCards.Contains(cardAddedLater.Id));
}
public async Task ComplexCaseWithLessCardsThanRequested()
{
var db = DbHelper.GetEmptyTestDB();
var user = await UserHelper.CreateInDbAsync(db);
var deck = await DeckHelper.CreateAsync(db, user, algorithmId : DeveloperHeapingAlgorithm.ID);
const int cardCount = 10;
for (int i = 0; i < cardCount / 2; i++)
{
await DeckHelper.AddNeverLearntCardAsync(db, deck, await CardHelper.CreateIdAsync(db, user));
await DeckHelper.AddCardAsync(db, deck, await CardHelper.CreateIdAsync(db, user), 0);
}
using var dbContext = new MemCheckDbContext(db);
var request = new GetUnknownCardsToLearn.Request(user, deck, Array.Empty <Guid>(), Array.Empty <Guid>(), cardCount * 2);
var cards = (await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request)).Cards.ToImmutableArray();
Assert.AreEqual(cardCount, cards.Length);
for (int i = 1; i < cardCount / 2; i++)
{
Assert.AreEqual(CardInDeck.NeverLearntLastLearnTime, cards[i].LastLearnUtcTime);
}
for (int i = cardCount / 2; i < cards.Length; i++)
{
Assert.IsTrue(cards[i].LastLearnUtcTime >= cards[i - 1].LastLearnUtcTime);
}
}
public async Task CardsNeverLearnt_NotTheSameOrderOnSuccessiveRuns()
{
var db = DbHelper.GetEmptyTestDB();
var user = await UserHelper.CreateInDbAsync(db);
var deck = await DeckHelper.CreateAsync(db, user, algorithmId : DefaultHeapingAlgorithm.ID);
const int cardCount = 100;
for (int i = 0; i < cardCount; i++)
{
var card = await CardHelper.CreateAsync(db, user);
await DeckHelper.AddNeverLearntCardAsync(db, deck, card.Id);
}
using var dbContext = new MemCheckDbContext(db);
var request = new GetUnknownCardsToLearn.Request(user, deck, Array.Empty <Guid>(), Array.Empty <Guid>(), cardCount);
var firstRunCards = (await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request)).Cards.Select(c => c.CardId).ToImmutableArray();
Assert.AreEqual(cardCount, firstRunCards.Length);
var secondRunCards = (await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request)).Cards.Select(c => c.CardId).ToImmutableArray();
Assert.AreEqual(cardCount, secondRunCards.Length);
var thirdRunCards = (await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request)).Cards.Select(c => c.CardId).ToImmutableArray();
Assert.AreEqual(cardCount, thirdRunCards.Length);
Assert.IsFalse(firstRunCards.SequenceEqual(secondRunCards));
Assert.IsFalse(firstRunCards.SequenceEqual(thirdRunCards));
Assert.IsFalse(secondRunCards.SequenceEqual(thirdRunCards));
}
public async Task OneNeverLearnt()
{
var db = DbHelper.GetEmptyTestDB();
var user = await UserHelper.CreateInDbAsync(db);
var deck = await DeckHelper.CreateAsync(db, user, algorithmId : DefaultHeapingAlgorithm.ID);
var card = await CardHelper.CreateAsync(db, user);
await DeckHelper.AddNeverLearntCardAsync(db, deck, card.Id);
using var dbContext = new MemCheckDbContext(db);
var request = new GetUnknownCardsToLearn.Request(user, deck, Array.Empty <Guid>(), Array.Empty <Guid>(), 10);
var cards = await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request);
Assert.AreEqual(1, cards.Cards.Count());
}
public async Task OneCardInFrench()
{
var db = DbHelper.GetEmptyTestDB();
var french = await CardLanguagHelper.CreateAsync(db, "Français");
var user = await UserHelper.CreateInDbAsync(db);
var deck = await DeckHelper.CreateAsync(db, user);
var card = await CardHelper.CreateAsync(db, user, language : french);
await DeckHelper.AddNeverLearntCardAsync(db, deck, card.Id);
using var dbContext = new MemCheckDbContext(db);
var request = new GetUnknownCardsToLearn.Request(user, deck, Array.Empty <Guid>(), Array.Empty <Guid>(), 10);
var cards = await new GetUnknownCardsToLearn(dbContext.AsCallContext()).RunAsync(request);
Assert.IsTrue(cards.Cards.Single().IsInFrench);
}
