public void ReturnCorrectNumberOfRanks(int totalReviews, int expectedCount)
{
var reviews = new List <BeerReview>();
var strategy = new Mock <IRankCalculationStrategy>();
for (var i = 0; i < totalReviews; i++)
{
var rv = this.Fixture.Create <BeerReview>();
reviews.Add(rv);
}
var expectedGroups = reviews.Where(r => !r.IsDeleted).GroupBy(r => r.Beer);
var enumeratedGroups = expectedGroups as IGrouping <Beer, BeerReview>[] ?? expectedGroups.ToArray();
for (var i = 0; i < enumeratedGroups.Length; i++)
{
var rank = new Mock <IBeerRank>();
rank.SetupGet(r => r.CompositeScore)
.Returns(i);
strategy.Setup(s => s.GetBeerRank(enumeratedGroups[i], enumeratedGroups[i].Key))
.Returns(rank.Object);
}
var repository = new Mock <IRepository <BeerReview> >();
repository.SetupGet(r => r.All)
.Returns(reviews.AsQueryable());
var topBeersService = new TopBeersService(repository.Object, strategy.Object);
var result = topBeersService.GetTopBeers(expectedCount);
Assert.GreaterOrEqual(expectedCount, result.Count());
}
public void CallGetRankForEachReviewGroupWithSameBeer()
{
// Arrange
var totalReviews = 15;
var reviews = new List <BeerReview>();
var strategy = new Mock <IRankCalculationStrategy>();
for (var i = 0; i < totalReviews; i++)
{
var rv = this.Fixture.Create <BeerReview>();
reviews.Add(rv);
}
var expectedGroups = reviews.Where(r => !r.IsDeleted).GroupBy(r => r.Beer);
var enumeratedGroups = expectedGroups as IGrouping <Beer, BeerReview>[] ?? expectedGroups.ToArray();
for (var i = 0; i < enumeratedGroups.Length; i++)
{
var rank = new Mock <IBeerRank>();
rank.SetupGet(r => r.CompositeScore)
.Returns(i);
strategy.Setup(s => s.GetBeerRank(enumeratedGroups[i], enumeratedGroups[i].Key))
.Returns(rank.Object);
}
var repository = new Mock <IEfRepository <BeerReview> >();
repository.SetupGet(r => r.All)
.Returns(reviews.AsQueryable());
var topBeersService = new TopBeersService(repository.Object, strategy.Object);
// Act
topBeersService.GetTopBeers(10);
// Assert
foreach (var expectedGroup in enumeratedGroups)
{
strategy.Verify(s => s.GetBeerRank(expectedGroup, expectedGroup.Key), Times.Once);
}
}
public void ReturnRanksOrderedByDescendingCompositeScore(int totalReviews, int expectedCount)
{
// Arrange
var reviews = new List <BeerReview>();
var strategy = new Mock <IRankCalculationStrategy>();
for (var i = 0; i < totalReviews; i++)
{
var rv = this.Fixture.Create <BeerReview>();
reviews.Add(rv);
}
var expectedGroups = reviews.Where(r => !r.IsDeleted).GroupBy(r => r.Beer);
var enumeratedGroups = expectedGroups as IGrouping <Beer, BeerReview>[] ?? expectedGroups.ToArray();
for (var i = 0; i < enumeratedGroups.Length; i++)
{
var rank = new Mock <IBeerRank>();
rank.SetupGet(r => r.CompositeScore)
.Returns(i);
strategy.Setup(s => s.GetBeerRank(enumeratedGroups[i], enumeratedGroups[i].Key))
.Returns(rank.Object);
}
var repository = new Mock <IEfRepository <BeerReview> >();
repository.SetupGet(r => r.All)
.Returns(reviews.AsQueryable());
var topBeersService = new TopBeersService(repository.Object, strategy.Object);
// Act
var result = topBeersService.GetTopBeers(expectedCount);
// Assert
var comparer = Comparer <IBeerRank> .Create((a, b) => b.CompositeScore.CompareTo(a.CompositeScore));
CollectionAssert.IsOrdered(result, comparer);
}